Pub Date : 2026-01-08DOI: 10.1016/j.surfin.2026.108449
Hassan MABRAK , Youssef GHANDI , Mohammed OUBAHOU , Siham ELMAZOUZI , Imane CHAIBOUB , Brahim MAKKA , Ali ZOURIF , Abdeslam EL BOUARI , Youssef NAIMI
This study reports the synthesis of a series of pyrophosphate materials, , using the sol-gel method and their comprehensive characterization for potential applications as corrosion inhibitors and functional pigments. The synthesized compounds were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), UV-visible spectroscopy (UV-Vis), scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy (SEM-EDX), and chromatic property analysis. Solubility measurements conducted in 1M HCl medium over the temperature range of 298-353 K revealed that cobalt incorporation significantly enhances materials solubility, particularly for the composition with x = 0.5. Electrochemical investigation through potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) demonstrated that these pyrophosphates act as highly effective corrosion inhibitors for carbon steel in 1M HCl media. Maximum inhibition efficiencies of 86.26 %, 86.99 %, and 85.91 % were obtained from PDP measurements at 10-3 M for , , and , respectively, while EIS results confirmed higher reaching 92.61 %, 90.63 %, and 86.64 %. Thermodynamic analysis suggests a chemical-type adsorption mechanism (chemisorption) following the Langmuir isotherm, as evidenced by strongly negative adsorption free energies (-44.5, -44.9, and -43.8 kJ/mol). The inhibition efficiency decreases with increasing temperature, suggesting partial desorption at elevated temperatures. In addition to their electrochemical performance, Chromatic analysis revealed a progressive color evolution from white to violet-blue with increasing cobalt content, indicating their potential application as pigments. This research highlights the potential of cobalt-based pyrophosphates as environmentally friendly corrosion inhibitors and color materials, enhancing the value of Morocco's phosphate resources.
{"title":"Sol-gel engineered co-substituted pyrophosphates: Bridging high-performance corrosion inhibition and chromatic properties","authors":"Hassan MABRAK , Youssef GHANDI , Mohammed OUBAHOU , Siham ELMAZOUZI , Imane CHAIBOUB , Brahim MAKKA , Ali ZOURIF , Abdeslam EL BOUARI , Youssef NAIMI","doi":"10.1016/j.surfin.2026.108449","DOIUrl":"10.1016/j.surfin.2026.108449","url":null,"abstract":"<div><div>This study reports the synthesis of a series of pyrophosphate materials, <span><math><mrow><mi>N</mi><msub><mi>a</mi><mn>2</mn></msub><mi>S</mi><msub><mi>r</mi><mrow><mn>1</mn><mo>−</mo><mi>x</mi></mrow></msub><mi>C</mi><msub><mi>o</mi><mi>x</mi></msub><msub><mi>P</mi><mn>2</mn></msub><msub><mi>O</mi><mn>7</mn></msub></mrow></math></span>, using the sol-gel method and their comprehensive characterization for potential applications as corrosion inhibitors and functional pigments. The synthesized compounds were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), UV-visible spectroscopy (UV-Vis), scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy (SEM-EDX), and chromatic property analysis. Solubility measurements conducted in 1M HCl medium over the temperature range of 298-353 K revealed that cobalt incorporation significantly enhances materials solubility, particularly for the composition with x = 0.5. Electrochemical investigation through potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) demonstrated that these pyrophosphates act as highly effective corrosion inhibitors for carbon steel in 1M HCl media. Maximum inhibition efficiencies of 86.26 %, 86.99 %, and 85.91 % were obtained from PDP measurements at 10<sup>-3</sup> M for <span><math><mrow><mi>N</mi><msub><mi>a</mi><mn>2</mn></msub><mi>S</mi><mi>r</mi><msub><mi>P</mi><mn>2</mn></msub><msub><mi>O</mi><mn>7</mn></msub></mrow></math></span>, <span><math><mrow><mi>N</mi><msub><mi>a</mi><mn>2</mn></msub><mi>S</mi><msub><mi>r</mi><mrow><mn>0.75</mn></mrow></msub><mi>C</mi><msub><mi>o</mi><mrow><mn>0.25</mn></mrow></msub><msub><mi>P</mi><mn>2</mn></msub><msub><mi>O</mi><mn>7</mn></msub></mrow></math></span>, and <span><math><mrow><mi>N</mi><msub><mi>a</mi><mn>2</mn></msub><mi>S</mi><msub><mi>r</mi><mrow><mn>0.5</mn></mrow></msub><mi>C</mi><msub><mi>o</mi><mrow><mn>0.5</mn></mrow></msub><msub><mi>P</mi><mn>2</mn></msub><msub><mi>O</mi><mn>7</mn></msub></mrow></math></span>, respectively, while EIS results confirmed higher reaching 92.61 %, 90.63 %, and 86.64 %. Thermodynamic analysis suggests a chemical-type adsorption mechanism (chemisorption) following the Langmuir isotherm, as evidenced by strongly negative adsorption free energies (-44.5, -44.9, and -43.8 kJ/mol). The inhibition efficiency decreases with increasing temperature, suggesting partial desorption at elevated temperatures. In addition to their electrochemical performance, Chromatic analysis revealed a progressive color evolution from white to violet-blue with increasing cobalt content, indicating their potential application as pigments. This research highlights the potential of cobalt-based pyrophosphates as environmentally friendly corrosion inhibitors and color materials, enhancing the value of Morocco's phosphate resources.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"82 ","pages":"Article 108449"},"PeriodicalIF":6.3,"publicationDate":"2026-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145981592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-08DOI: 10.1016/j.surfin.2026.108457
Ellaine Rose Beronio , Marianne Palmero , Honesto Ovid Tubalinal , Anne Nicole Hipolito , Tongjai Chookajorn , Koji Shimizu , Allan Abraham Padama
High-entropy alloys (HEA) provide an excellent opportunity to discover and exploit properties that emerge from the synergistic combination of five or more metallic elements. Interest in their possible use as catalysts for CO2 conversion processes is growing. At the same time, their combinatorial complexity encourages the use of new computational approaches. In this work, we combine density functional theory-based calculations and machine learning (ML) to investigate CO adsorption on CoCuFeMnNi(111) surfaces. We find that the use of the surface microstructure of CO as features for the ML model adequately predicts CO adsorption energy. We study the role of the surface microstructure in influencing adsorption strengths and in modifying the d-band centers of the surface atoms. Furthermore, we explore the performance of CoCuFeMnNi(111) surfaces by determining the activation energies accompanying CO2 dissociation and CH3OH formation, processes that are relevant in CO2 conversion.
{"title":"Reactivity of high-entropy alloy CoCuFeMnNi surface toward CO adsorption and CO2 conversion processes: A combined density functional theory and machine learning study","authors":"Ellaine Rose Beronio , Marianne Palmero , Honesto Ovid Tubalinal , Anne Nicole Hipolito , Tongjai Chookajorn , Koji Shimizu , Allan Abraham Padama","doi":"10.1016/j.surfin.2026.108457","DOIUrl":"10.1016/j.surfin.2026.108457","url":null,"abstract":"<div><div>High-entropy alloys (HEA) provide an excellent opportunity to discover and exploit properties that emerge from the synergistic combination of five or more metallic elements. Interest in their possible use as catalysts for CO<sub>2</sub> conversion processes is growing. At the same time, their combinatorial complexity encourages the use of new computational approaches. In this work, we combine density functional theory-based calculations and machine learning (ML) to investigate CO adsorption on CoCuFeMnNi(111) surfaces. We find that the use of the surface microstructure of CO as features for the ML model adequately predicts CO adsorption energy. We study the role of the surface microstructure in influencing adsorption strengths and in modifying the d-band centers of the surface atoms. Furthermore, we explore the performance of CoCuFeMnNi(111) surfaces by determining the activation energies accompanying CO<sub>2</sub> dissociation and CH<sub>3</sub>OH formation, processes that are relevant in CO<sub>2</sub> conversion.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"82 ","pages":"Article 108457"},"PeriodicalIF":6.3,"publicationDate":"2026-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145957859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-08DOI: 10.1016/j.surfin.2026.108452
Peng Cheng , Zi-kuo Li , Yan Jin , Yue Yu , Xiao-fang Gao , Xue-mao Guo , Li Jia
The commercial activated carbon relied upon by existing adsorbent injection technologies suffers from issues such as high cost, strong competitive adsorption, and a narrow temperature window, which constrain its large-scale industrial application. To enhance removal performance and lower production costs, this study proposes combining MIL-101(Fe) with biomass to create MIL-101(Fe)-derived carbon composites. A series of composite carbon materials was synthesized by modifying MIL-101(Fe) with biomass through volumetric impregnation and co-pyrolysis. Various characterization methods demonstrated the behavior of different metal dopants on the surfaces of biochar and MIL-101(Fe), providing a detailed analysis of the mechanisms behind various metal doping modes and their optimization during composite preparation. The mechanism underlying mercury removal by the composite materials was further investigated through a thorough and detailed analysis. Results showed that 3wt. % Ce modification enhanced the exposure of oxygen-containing functional groups and metal active sites, which were beneficial for the removal process. Using biomass as the dopant carrier strengthened the anchoring of metal elements. The best-performing MIL-101(Fe)/3%Ce-BC sample achieved an adsorption capacity of 337.86 μg/g. During mercury removal, the lattice and chemisorbed oxygen in Fe oxides were consumed, while high-valent Ce oxides could be replenished in time to support the formation of stable HgO products, working synergistically to improve overall removal efficiency.
{"title":"Comparative study of metal doping on the surface of biochar and MIL-101(Fe) for Hg0 removal performance of MIL-101(Fe)-derived carbon composites","authors":"Peng Cheng , Zi-kuo Li , Yan Jin , Yue Yu , Xiao-fang Gao , Xue-mao Guo , Li Jia","doi":"10.1016/j.surfin.2026.108452","DOIUrl":"10.1016/j.surfin.2026.108452","url":null,"abstract":"<div><div>The commercial activated carbon relied upon by existing adsorbent injection technologies suffers from issues such as high cost, strong competitive adsorption, and a narrow temperature window, which constrain its large-scale industrial application. To enhance removal performance and lower production costs, this study proposes combining MIL-101(Fe) with biomass to create MIL-101(Fe)-derived carbon composites. A series of composite carbon materials was synthesized by modifying MIL-101(Fe) with biomass through volumetric impregnation and co-pyrolysis. Various characterization methods demonstrated the behavior of different metal dopants on the surfaces of biochar and MIL-101(Fe), providing a detailed analysis of the mechanisms behind various metal doping modes and their optimization during composite preparation. The mechanism underlying mercury removal by the composite materials was further investigated through a thorough and detailed analysis. Results showed that 3wt. % Ce modification enhanced the exposure of oxygen-containing functional groups and metal active sites, which were beneficial for the removal process. Using biomass as the dopant carrier strengthened the anchoring of metal elements. The best-performing MIL-101(Fe)/3%Ce-BC sample achieved an adsorption capacity of 337.86 μg/g. During mercury removal, the lattice and chemisorbed oxygen in Fe oxides were consumed, while high-valent Ce oxides could be replenished in time to support the formation of stable HgO products, working synergistically to improve overall removal efficiency.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"82 ","pages":"Article 108452"},"PeriodicalIF":6.3,"publicationDate":"2026-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145957856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Optical/THz properties of thin gold films are controlled by the temperature of substrate during deposition. In the visible range the transmission spectra show the transmission of films deposited at elevated temperatures is reduced due to absorption and scattering of light energy on surface plasmons excited in gold nanograins that make up the nanofilm at high synthesis temperatures.
In the infrared range, the situation is reversed. The transmission steadily grows with the film synthesis temperature because of the decrease of the intraband Drude absorption occurring due to the presence of boundaries between nanograins.
In the THz range the transmission of gold film sharply increases as the films synthesis exceeds 200 °C, while the reflectivity exhibits sharp growth as the synthesis temperature is getting lower than 300 °C.
The interference fringes in the THz radiation allow to establish the Sellmeier-type equation for fused silica in the THz range. On the whole, the study detailedly tracks the changes in optical properties of golden films deposited onto fused silica on the temperature of substrate during deposition. We show the extent of the control of optical properties in a wide spectral range from UV to THz for a certain film/substrate combination that is an important component of optical systems and instrumentation.
{"title":"Dependence of spectral characteristics of gold nanofilms in the THz-UV range on the synthesis temperature","authors":"A.S. Fedorov , I.A. Yakovlev , N.P. Shestakov , I.V. Nemtsev , M.S. Molokeev , A.V. Lukyanenko , A.S. Teplinskaia , A.S. Aleksandrovsky","doi":"10.1016/j.surfin.2026.108450","DOIUrl":"10.1016/j.surfin.2026.108450","url":null,"abstract":"<div><div>Optical/THz properties of thin gold films are controlled by the temperature of substrate during deposition. In the visible range the transmission spectra show the transmission of films deposited at elevated temperatures is reduced due to absorption and scattering of light energy on surface plasmons excited in gold nanograins that make up the nanofilm at high synthesis temperatures.</div><div>In the infrared range, the situation is reversed. The transmission steadily grows with the film synthesis temperature because of the decrease of the intraband Drude absorption occurring due to the presence of boundaries between nanograins.</div><div>In the THz range the transmission of gold film sharply increases as the films synthesis exceeds 200 °C, while the reflectivity exhibits sharp growth as the synthesis temperature is getting lower than 300 °C.</div><div>The interference fringes in the THz radiation allow to establish the Sellmeier-type equation for fused silica in the THz range. On the whole, the study detailedly tracks the changes in optical properties of golden films deposited onto fused silica on the temperature of substrate during deposition. We show the extent of the control of optical properties in a wide spectral range from UV to THz for a certain film/substrate combination that is an important component of optical systems and instrumentation.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"82 ","pages":"Article 108450"},"PeriodicalIF":6.3,"publicationDate":"2026-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145957858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tin oxide-decorated reduced graphene oxide (SnO/rGO) nanocomposites (NCs) were successfully synthesized via an in-situ hydrothermal method and investigated for ammonia (NH3) gas sensing at ambient temperature. Structural and morphological analyses confirmed the uniform dispersion of SnO nanoparticles on the rGO sheets, facilitating efficient charge transfer and enhanced gas adsorption. The hybrid nanocomposites exhibited p-type semiconducting behaviour and superior sensing performance compared to pristine SnO and rGO. Among the tested samples, the optimized 15% SnO/rGO composition demonstrated the highest response of 34.73% toward 100 ppm NH3, with a response time of 1547 s under room-temperature conditions. The sensor also displayed good linearity, repeatability, and selectivity toward NH3 in the concentration range of 10–100 ppm. The improved sensing behaviour is attributed to the synergistic interaction between SnO nanoparticles and the conductive rGO network, which enhances electron transport and active site availability. Overall, the SnO/rGO nanocomposite represents a promising, low-energy material for efficient room-temperature ammonia detection.
{"title":"Room-temperature ammonia detection enabled by tin oxide-reduced graphene oxide hybrid sensors","authors":"Chaisak Issro , Sasithorn Srirattanapibul , Tanawat Imboon , Jeerawan Khumphon , Dusadee Khamboonrueang , Veeramani Mangala Gowri , Sirikanjana Thongmee","doi":"10.1016/j.surfin.2026.108456","DOIUrl":"10.1016/j.surfin.2026.108456","url":null,"abstract":"<div><div>Tin oxide-decorated reduced graphene oxide (SnO/rGO) nanocomposites (NCs) were successfully synthesized via an in-situ hydrothermal method and investigated for ammonia (NH<sub>3</sub>) gas sensing at ambient temperature. Structural and morphological analyses confirmed the uniform dispersion of SnO nanoparticles on the rGO sheets, facilitating efficient charge transfer and enhanced gas adsorption. The hybrid nanocomposites exhibited p-type semiconducting behaviour and superior sensing performance compared to pristine SnO and rGO. Among the tested samples, the optimized 15% SnO/rGO composition demonstrated the highest response of 34.73% toward 100 ppm NH<sub>3</sub>, with a response time of 1547 s under room-temperature conditions. The sensor also displayed good linearity, repeatability, and selectivity toward NH<sub>3</sub> in the concentration range of 10–100 ppm. The improved sensing behaviour is attributed to the synergistic interaction between SnO nanoparticles and the conductive rGO network, which enhances electron transport and active site availability. Overall, the SnO/rGO nanocomposite represents a promising, low-energy material for efficient room-temperature ammonia detection.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"82 ","pages":"Article 108456"},"PeriodicalIF":6.3,"publicationDate":"2026-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145981590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-08DOI: 10.1016/j.surfin.2026.108441
Yingyue Teng , Jun Zhang , Dingze Liu , Jingsi Sun , Zikang Qin , Zhengdao Li , Yinmin Song
To address the growing challenge of electromagnetic (EM) pollution, the development of high-performance microwave absorbing materials with superior impedance matching and strong attenuation capability is of paramount importance. In this study, a ternary SiC/C/Fe3O4 nanoarray composite was designed and fabricated through heterogeneous interface engineering. The incorporation of an amorphous carbon layer as a key interfacial component not only effectively dispersed the Fe3O4 nanoparticles but also served as a bridging medium between SiC and Fe3O4, synergistically regulating the complex permittivity and optimizing the impedance matching of the composite. After annealing at 500 °C, the nanocomposite has exhibited exceptional electromagnetic wave (EMW) absorption performance: the minimum reflection loss (RLmin) reaches -64.31 dB at 7.08 GHz with a thickness of 2.67 mm. SCFan shows wide effective absorption bandwidth (EAB) with reflection loss less than -10 dB from 3.2 GHz to 18 GHz. The outstanding performance is primarily attributed to the enhanced interfacial polarization induced by the multicomponent heterogeneous interfaces, the magnetic loss from Fe3O4, and the multiple scattering within the 3D network structure.
{"title":"Design, fabrication and microwave absorbing properties of ternary SiC/C/Fe3O4 nanoarrays via heterogeneous interface engineering","authors":"Yingyue Teng , Jun Zhang , Dingze Liu , Jingsi Sun , Zikang Qin , Zhengdao Li , Yinmin Song","doi":"10.1016/j.surfin.2026.108441","DOIUrl":"10.1016/j.surfin.2026.108441","url":null,"abstract":"<div><div>To address the growing challenge of electromagnetic (EM) pollution, the development of high-performance microwave absorbing materials with superior impedance matching and strong attenuation capability is of paramount importance. In this study, a ternary SiC/C/Fe<sub>3</sub>O<sub>4</sub> nanoarray composite was designed and fabricated through heterogeneous interface engineering. The incorporation of an amorphous carbon layer as a key interfacial component not only effectively dispersed the Fe<sub>3</sub>O<sub>4</sub> nanoparticles but also served as a bridging medium between SiC and Fe<sub>3</sub>O<sub>4</sub>, synergistically regulating the complex permittivity and optimizing the impedance matching of the composite. After annealing at 500 °C, the nanocomposite has exhibited exceptional electromagnetic wave (EMW) absorption performance: the minimum reflection loss (RL<sub>min</sub>) reaches -64.31 dB at 7.08 GHz with a thickness of 2.67 mm. SCFan shows wide effective absorption bandwidth (EAB) with reflection loss less than -10 dB from 3.2 GHz to 18 GHz. The outstanding performance is primarily attributed to the enhanced interfacial polarization induced by the multicomponent heterogeneous interfaces, the magnetic loss from Fe<sub>3</sub>O<sub>4</sub>, and the multiple scattering within the 3D network structure.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"82 ","pages":"Article 108441"},"PeriodicalIF":6.3,"publicationDate":"2026-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145957854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-07DOI: 10.1016/j.surfin.2026.108443
Jingchao Wang , Tian Li , Tuo Liang , Yunzhen Li , Min Zha , Yuzeng Chen , Changlin Yang
We investigated the effects of solute additions on the heterogeneous nucleation of ALN/AZ91 composites through experimental verification and first-principles calculations based on interatomic bonding characteristics. By introducing 12 solute atoms into the ALN/AZ91 composites, we revealed the segregation mechanisms of solute atoms near the ALN(0001)/Mg(0001) interface. Furthermore, the surface adsorption mechanisms of solute and Mg atoms on the ALN(0001) surface were elucidated. Calculation results confirmed that the solute atoms such as Al, Si, Sc, Sn, Zr, Ce, and Gd preferentially segregated near the ALN(0001)/Mg(0001) interface compared with solute atoms such as Zn, Ca, Sr, Mn, and Y. This segregation led to the formation of a smooth transition layer in the bonding strength from the ALN layers to Mg layers. Consequently, the bonding interactions between Mg and solute atoms enhanced the nucleation potency of α-Mg on the surface of ALN reinforcement, thereby improving the ability of ALN reinforcement to refine α-Mg grains. Concurrently, the strengthened bonding between Mg atoms and ALN(0001) surface atoms contributed to enhance the mechanical properties of ALN/AZ91 composites.
{"title":"Effects of solute additions on heterogeneous nucleation of α-Mg in ALN/AZ91 composite melt: A first-principles study","authors":"Jingchao Wang , Tian Li , Tuo Liang , Yunzhen Li , Min Zha , Yuzeng Chen , Changlin Yang","doi":"10.1016/j.surfin.2026.108443","DOIUrl":"10.1016/j.surfin.2026.108443","url":null,"abstract":"<div><div>We investigated the effects of solute additions on the heterogeneous nucleation of ALN/AZ91 composites through experimental verification and first-principles calculations based on interatomic bonding characteristics. By introducing 12 solute atoms into the ALN/AZ91 composites, we revealed the segregation mechanisms of solute atoms near the ALN(0001)/Mg(0001) interface. Furthermore, the surface adsorption mechanisms of solute and Mg atoms on the ALN(0001) surface were elucidated. Calculation results confirmed that the solute atoms such as Al, Si, <em>Sc</em>, Sn, Zr, Ce, and Gd preferentially segregated near the ALN(0001)/Mg(0001) interface compared with solute atoms such as Zn, Ca, Sr, Mn, and Y. This segregation led to the formation of a smooth transition layer in the bonding strength from the ALN layers to Mg layers. Consequently, the bonding interactions between Mg and solute atoms enhanced the nucleation potency of α-Mg on the surface of ALN reinforcement, thereby improving the ability of ALN reinforcement to refine α-Mg grains. Concurrently, the strengthened bonding between Mg atoms and ALN(0001) surface atoms contributed to enhance the mechanical properties of ALN/AZ91 composites.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"81 ","pages":"Article 108443"},"PeriodicalIF":6.3,"publicationDate":"2026-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145928805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-07DOI: 10.1016/j.surfin.2026.108448
Xinzhe Liu , Helong Su , Ting Chen , Jinliang Xu , Guohua Liu
Solar interfacial evaporation is a promising technology to alleviate the global water crisis, yet the salt crystallization during evaporation hinders its practical application. Inspired by the structural adaptability of reeds, this study develops a 3D curled evaporator using nanocarbon powder and nickel foam. Its cylindrical architecture minimizes contact with the water surface, while the 3D network of nickel foam constructs intrinsic water-salt circulation channels to enhance mass transfer. These features enable stable operation without salt crystallization over 6 consecutive days of seawater desalination. The evaporator achieves a high seawater evaporation rate of 2.265 kg·m⁻²·h⁻¹, representing an 80.05 % enhancement compared to traditional planar evaporators. Numerical simulations confirmed the porous structure’s anti-crystallization and salt resistance, and the 3D-curled evaporator exhibited water/saltwater evaporation rates exceeding most reported values and the theoretical 1-sun limit. This work provides a novel approach and design concept for the development of high-efficiency, stable desalination device, promoting sustainable water resource utilization.
{"title":"Bio-inspired 3D curled evaporator for efficient seawater desalination and anti-salt crystallization","authors":"Xinzhe Liu , Helong Su , Ting Chen , Jinliang Xu , Guohua Liu","doi":"10.1016/j.surfin.2026.108448","DOIUrl":"10.1016/j.surfin.2026.108448","url":null,"abstract":"<div><div>Solar interfacial evaporation is a promising technology to alleviate the global water crisis, yet the salt crystallization during evaporation hinders its practical application. Inspired by the structural adaptability of reeds, this study develops a 3D curled evaporator using nanocarbon powder and nickel foam. Its cylindrical architecture minimizes contact with the water surface, while the 3D network of nickel foam constructs intrinsic water-salt circulation channels to enhance mass transfer. These features enable stable operation without salt crystallization over 6 consecutive days of seawater desalination. The evaporator achieves a high seawater evaporation rate of 2.265 kg·m⁻²·h⁻¹, representing an 80.05 % enhancement compared to traditional planar evaporators. Numerical simulations confirmed the porous structure’s anti-crystallization and salt resistance, and the 3D-curled evaporator exhibited water/saltwater evaporation rates exceeding most reported values and the theoretical 1-sun limit. This work provides a novel approach and design concept for the development of high-efficiency, stable desalination device, promoting sustainable water resource utilization.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"81 ","pages":"Article 108448"},"PeriodicalIF":6.3,"publicationDate":"2026-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145928804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-07DOI: 10.1016/j.surfin.2026.108444
Šimun Mandić , Ana Senkić , Nataša Vujičić
Organic - inorganic heterostructures (HS) combine the strong light absorption and exciton generation capabilities of organic molecules with the unique excitonic properties of layered transition metal dichalcogenides (TMDs), where the interfacial band alignment dictates the optical response. In this work, we investigate the influence of H2Pc molecules on CVD-grown MoS2 and WS2 monolayers using correlative microscopy techniques - Kelvin probe force microscopy (KPFM), photoluminescence (PL), and Raman spectroscopy. Comprehensive analysis of both electronic and optical properties provides detailed insights into the energy band alignment in these two HS. Despite their similar band alignments, the heterostructures exhibit strikingly different optical signatures. In the case of H2Pc/MoS2 HS, the effect of defect healing is more pronounced, while for the H2Pc/WS2 HS, strong indications of Förster energy transfer are observed. These findings highlight the critical role of transition dipole moment in addition to spectral overlap between donor emission and acceptor absorption in the design of optoelectronic devices.
{"title":"Defect healing and Förster resonant energy transfer in H2Pc-TMD organic-inorganic heterostructures","authors":"Šimun Mandić , Ana Senkić , Nataša Vujičić","doi":"10.1016/j.surfin.2026.108444","DOIUrl":"10.1016/j.surfin.2026.108444","url":null,"abstract":"<div><div>Organic - inorganic heterostructures (HS) combine the strong light absorption and exciton generation capabilities of organic molecules with the unique excitonic properties of layered transition metal dichalcogenides (TMDs), where the interfacial band alignment dictates the optical response. In this work, we investigate the influence of H<sub>2</sub>Pc molecules on CVD-grown MoS<sub>2</sub> and WS<sub>2</sub> monolayers using correlative microscopy techniques - Kelvin probe force microscopy (KPFM), photoluminescence (PL), and Raman spectroscopy. Comprehensive analysis of both electronic and optical properties provides detailed insights into the energy band alignment in these two HS. Despite their similar band alignments, the heterostructures exhibit strikingly different optical signatures. In the case of H<sub>2</sub>Pc/MoS<sub>2</sub> HS, the effect of defect healing is more pronounced, while for the H<sub>2</sub>Pc/WS<sub>2</sub> HS, strong indications of Förster energy transfer are observed. These findings highlight the critical role of transition dipole moment in addition to spectral overlap between donor emission and acceptor absorption in the design of optoelectronic devices.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"82 ","pages":"Article 108444"},"PeriodicalIF":6.3,"publicationDate":"2026-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145957857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-07DOI: 10.1016/j.surfin.2026.108446
Wasi Shadman , Musa Mannan , Tanzila Kamal Choity , Sangchul Hwang , Gwan-Hyoung Lee , Hong-Gu Kang , Namwon Kim
The advancement of point-of-care (POC) diagnostics using novel biomarkers presents a promising opportunity for early disease detection, offering affordable and user-friendly alternatives to conventional laboratory equipment. This study introduces a cost-effective electrochemical biosensor aimed at detecting an emerging biomarker, tRNA-derived fragments (tRFs), using a screen-printed carbon electrode (SPCE). The carbon working electrode undergoes functionalization through oxygen plasma treatment, followed by EDC/NHS chemistry for the immobilization of probe strands. To enhance specificity and prevent non-specific binding, the unmodified electrode surface is blocked with bovine serum albumin (BSA), ensuring the selective detection of the target biomarker. Electrochemical characterization using cyclic voltammetry (CV) and differential pulse voltammetry (DPV) confirms successful probe immobilization and target hybridization. DPV is employed to monitor signal variations throughout the functionalization and hybridization processes, as well as to evaluate the effect of varying target concentrations on peak current responses. The biosensor achieved a limit of detection (LOD) of 0.4 nM for the synthetic tRF target, with a detection range from 1 to 100 nM. The biosensor also demonstrated high specificity in distinguishing a three-nucleotide mutation. Additionally, its disposability, cost-effectiveness, and efficiency make it a promising tool for early disease detection, particularly in resource-limited settings, highlighting the potential of novel biomarkers in diagnostic applications.
{"title":"Electrochemical detection of tRNA-derived fragment (tRF) biomarkers using a multi-functionalized carbon electrode","authors":"Wasi Shadman , Musa Mannan , Tanzila Kamal Choity , Sangchul Hwang , Gwan-Hyoung Lee , Hong-Gu Kang , Namwon Kim","doi":"10.1016/j.surfin.2026.108446","DOIUrl":"10.1016/j.surfin.2026.108446","url":null,"abstract":"<div><div>The advancement of point-of-care (POC) diagnostics using novel biomarkers presents a promising opportunity for early disease detection, offering affordable and user-friendly alternatives to conventional laboratory equipment. This study introduces a cost-effective electrochemical biosensor aimed at detecting an emerging biomarker, tRNA-derived fragments (tRFs), using a screen-printed carbon electrode (SPCE). The carbon working electrode undergoes functionalization through oxygen plasma treatment, followed by EDC/NHS chemistry for the immobilization of probe strands. To enhance specificity and prevent non-specific binding, the unmodified electrode surface is blocked with bovine serum albumin (BSA), ensuring the selective detection of the target biomarker. Electrochemical characterization using cyclic voltammetry (CV) and differential pulse voltammetry (DPV) confirms successful probe immobilization and target hybridization. DPV is employed to monitor signal variations throughout the functionalization and hybridization processes, as well as to evaluate the effect of varying target concentrations on peak current responses. The biosensor achieved a limit of detection (LOD) of 0.4 nM for the synthetic tRF target, with a detection range from 1 to 100 nM. The biosensor also demonstrated high specificity in distinguishing a three-nucleotide mutation. Additionally, its disposability, cost-effectiveness, and efficiency make it a promising tool for early disease detection, particularly in resource-limited settings, highlighting the potential of novel biomarkers in diagnostic applications.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"83 ","pages":"Article 108446"},"PeriodicalIF":6.3,"publicationDate":"2026-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146001746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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