Pub Date : 2026-03-01Epub Date: 2025-11-05DOI: 10.1016/j.jmat.2025.101142
Xuemei Zhang , Jingyu Li , Shuping Guo , Lulu Huang , Mi Qin , Jianbo Zhu , Xiaoqiang Ma , Zhixin Hui , Yongsheng Zhang
Defect engineering is a key strategy for optimizing the thermoelectric (TE) properties of PbTe-based materials, and investigating charged defects in PbTe grain boundaries (GBs) is crucial for understanding its thermoelectric properties. In this study, focusing the PbTe(111)<11 >/PbTe(111)< 2> GBs, we perform a high-throughput investigation of the formation energies with various charged point (intrinsic and extrinsic) defects and their effects on the mechanical properties, the shear modulus. The GBs can facilitate the formation of the charged point defects (such as , ), indicating the accumulations of the defects within the GBs region. Such defect accumulation can strongly increase the phonon scatterings. Furthermore, charge defects within TePbTe GBs lower the shear modulus to <33.1 GPa, due to the weakening interactions between PbTe bonds. The soft bonds around GBs will induce the stronger anharmonicity and further suppress the lattice thermal conductivity. Employing the machine learning method, we establish the relationship between the shear modulus and physical descriptors, which can efficiently screen or design the various purposes of PbTe compounds. Our work bridges the gap in understanding charged defects at grain boundaries in PbTe-based thermoelectric materials and giving rise to the design methodology to achieve high promising thermoelectric performance through charged defect influenced mechanical properties.
{"title":"Charge defect design within PbTe grain boundaries to influence the mechanical properties","authors":"Xuemei Zhang , Jingyu Li , Shuping Guo , Lulu Huang , Mi Qin , Jianbo Zhu , Xiaoqiang Ma , Zhixin Hui , Yongsheng Zhang","doi":"10.1016/j.jmat.2025.101142","DOIUrl":"10.1016/j.jmat.2025.101142","url":null,"abstract":"<div><div>Defect engineering is a key strategy for optimizing the thermoelectric (TE) properties of PbTe-based materials, and investigating charged defects in PbTe grain boundaries (GBs) is crucial for understanding its thermoelectric properties. In this study, focusing the PbTe(111)<11 <span><math><mrow><mover><mn>2</mn><mo>¯</mo></mover></mrow></math></span> >/PbTe(111)<<span><math><mrow><mover><mn>1</mn><mo>¯</mo></mover><mover><mn>1</mn><mo>¯</mo></mover></mrow></math></span> 2> GBs, we perform a high-throughput investigation of the formation energies with various charged point (intrinsic and extrinsic) defects and their effects on the mechanical properties, the shear modulus. The GBs can facilitate the formation of the charged point defects (such as <span><math><mrow><msubsup><mi>V</mi><mtext>Pb</mtext><mrow><mn>2</mn><mo>−</mo></mrow></msubsup></mrow></math></span>, <span><math><mrow><mi>S</mi><msubsup><mi>b</mi><mtext>Pb</mtext><mrow><mn>1</mn><mo>+</mo></mrow></msubsup></mrow></math></span>), indicating the accumulations of the defects within the GBs region. Such defect accumulation can strongly increase the phonon scatterings. Furthermore, charge defects within Te<img>PbTe GBs lower the shear modulus to <33.1 GPa, due to the weakening interactions between Pb<img>Te bonds. The soft bonds around GBs will induce the stronger anharmonicity and further suppress the lattice thermal conductivity. Employing the machine learning method, we establish the relationship between the shear modulus and physical descriptors, which can efficiently screen or design the various purposes of PbTe compounds. Our work bridges the gap in understanding charged defects at grain boundaries in PbTe-based thermoelectric materials and giving rise to the design methodology to achieve high promising thermoelectric performance through charged defect influenced mechanical properties.</div></div>","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"12 2","pages":"Article 101142"},"PeriodicalIF":9.6,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145441956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 : 2026-03-01Epub Date: 2025-08-13DOI: 10.1016/j.jmat.2025.101120
Ziyue Wang , Jiajun Zhu , Jiyang Xie , Chengding Gu , Wanbiao Hu
Tuning the structure-activity of fillers and matrix is crucial for designing polymer-based dielectric capacitors with high energy storage performance. Up to date, how the fillers’ structural characteristics (surface/interface configurations, dimensions, orientations etc.) contribute to the overall energy storage is far from unveiled. To this end, a combined filler-polymer dual-side design strategy is developed, which involves the DFT guidance for the electronic transport criteria for the designable synthesis of KNb3O8 fillers. Four different structural configurations are constructed, which are surface-modified with polydopamine (PDA) to fabricate the final composite films, i.e. PDA@KNb3O8/PVDF-P(VDF-HFP)-PMMA with particular orientations and arrangements, through a well-controlled solution casting method. Comprehensive structural and electrical investigations reveal that 1D/2D-orientated PDA@KNb3O8 fillers could obviously enhance the breakdown field and energy storage performance. The difference is that the 1D fillers more effectively improve the energy efficiency (up to 72%), while the 2D fillers more steadily achieve high energy density (Ue = 28.35 J/cm3) among the highest Ue reported for the composites. This work not only uncovers the structural origin of the electrostatic storage in inorganic-polymer composite films but also provides critical insights in designing high-energy-density film capacitors.
{"title":"Uncovering charge transport dynamics and electrostatic storage origin for high-energy-density polymer films through configuration-tailored PDA@KNb3O8 fillers","authors":"Ziyue Wang , Jiajun Zhu , Jiyang Xie , Chengding Gu , Wanbiao Hu","doi":"10.1016/j.jmat.2025.101120","DOIUrl":"10.1016/j.jmat.2025.101120","url":null,"abstract":"<div><div>Tuning the structure-activity of fillers and matrix is crucial for designing polymer-based dielectric capacitors with high energy storage performance. Up to date, how the fillers’ structural characteristics (surface/interface configurations, dimensions, orientations <em>etc</em>.) contribute to the overall energy storage is far from unveiled. To this end, a combined filler-polymer dual-side design strategy is developed, which involves the DFT guidance for the electronic transport criteria for the designable synthesis of KNb<sub>3</sub>O<sub>8</sub> fillers. Four different structural configurations are constructed, which are surface-modified with polydopamine (PDA) to fabricate the final composite films, <em>i.e</em>. PDA@KNb<sub>3</sub>O<sub>8</sub>/PVDF-P(VDF-HFP)-PMMA with particular orientations and arrangements, through a well-controlled solution casting method. Comprehensive structural and electrical investigations reveal that 1D/2D-orientated PDA@KNb<sub>3</sub>O<sub>8</sub> fillers could obviously enhance the breakdown field and energy storage performance. The difference is that the 1D fillers more effectively improve the energy efficiency (up to 72%), while the 2D fillers more steadily achieve high energy density (<em>U</em><sub>e</sub> = 28.35 J/cm<sup>3</sup>) among the highest <em>U</em><sub>e</sub> reported for the composites. This work not only uncovers the structural origin of the electrostatic storage in inorganic-polymer composite films but also provides critical insights in designing high-energy-density film capacitors.</div></div>","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"12 2","pages":"Article 101120"},"PeriodicalIF":9.6,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144839973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 : 2026-03-01Epub Date: 2025-12-15DOI: 10.1016/j.jmat.2025.101152
Zexia Zhang , Yi Jia , Qian Lv , Ruitao Lv , Feiyu Kang
Polymer/Si hybrid solar cells have attracted much research interest in virtue of their simple device structure and combination of flexibility and stability. Metal grid by thermal evaporation is usually used as the top electrode, which gives rise to a tradeoff between the efficient coverage and the decreased light absorption, in addition to the costly metal deposition in high vacuum. Carbon nanotube (CNT) networks possess both good conductivity and high light transmittance, thus is a promising candidate for the top electrode. Although it is significant to prepare and apply large-area and high-quality CNT films with high transparency and low sheet resistances into kinds of solar cells, CNTs have not been studied as transparent electrodes in polymer/Si hybrid solar cells to the best of our knowledge. In this work, large-area and continuous CNT networks with 86% transmittance at 550 nm are synthesized and used as transparent window electrodes in the hybrid heterojunction solar cells composed of a conjugate polymer poly(3,4-ethylenedioxy-thiophene):poly(styrenesulfonate) (PEDOT:PSS) and micro-textured n-type crystalline silicon wafers. Directly laminating the pristine CNT film onto the PEDOT:PSS/Si surface can lead to a power conversion efficiency (PCE) of 3.9%. After purification of CNT networks, the performance is improved up to 7.0%, due to the efficient carrier transportation and light harvesting of CNT electrodes. The results indicate that the flexible and transparent CNT networks have great potential for realizing metal grid-free hybrid polymer/Si solar cells.
{"title":"Carbon nanotube networks as efficient transparent electrode for polymer/silicon hybrid solar cells","authors":"Zexia Zhang , Yi Jia , Qian Lv , Ruitao Lv , Feiyu Kang","doi":"10.1016/j.jmat.2025.101152","DOIUrl":"10.1016/j.jmat.2025.101152","url":null,"abstract":"<div><div>Polymer/Si hybrid solar cells have attracted much research interest in virtue of their simple device structure and combination of flexibility and stability. Metal grid by thermal evaporation is usually used as the top electrode, which gives rise to a tradeoff between the efficient coverage and the decreased light absorption, in addition to the costly metal deposition in high vacuum. Carbon nanotube (CNT) networks possess both good conductivity and high light transmittance, thus is a promising candidate for the top electrode. Although it is significant to prepare and apply large-area and high-quality CNT films with high transparency and low sheet resistances into kinds of solar cells, CNTs have not been studied as transparent electrodes in polymer/Si hybrid solar cells to the best of our knowledge. In this work, large-area and continuous CNT networks with 86% transmittance at 550 nm are synthesized and used as transparent window electrodes in the hybrid heterojunction solar cells composed of a conjugate polymer poly(3,4-ethylenedioxy-thiophene):poly(styrenesulfonate) (PEDOT:PSS) and micro-textured n-type crystalline silicon wafers. Directly laminating the pristine CNT film onto the PEDOT:PSS/Si surface can lead to a power conversion efficiency (PCE) of 3.9%. After purification of CNT networks, the performance is improved up to 7.0%, due to the efficient carrier transportation and light harvesting of CNT electrodes. The results indicate that the flexible and transparent CNT networks have great potential for realizing metal grid-free hybrid polymer/Si solar cells.</div></div>","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"12 2","pages":"Article 101152"},"PeriodicalIF":9.6,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145760356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 : 2026-02-20DOI: 10.1016/j.jmat.2026.101188
Mohamed Ahmed Belal, Sugato Hajra, Ahmed M. Bayoumy, Mohammed H. Eldesouki, Kushal Ruthvik Kaja, Swati Panda, Dandugudumula Ramu, Ahmed Abd El-moneim, PGR Achary, Hoe Joon Kim
Volatile organic compound (VOC) sensors and triboelectric nanogenerators (TENGs) are highly significant applications with broad potential across multiple fields, including non-invasive disease biomarker monitoring and sustainable energy harvesting for electronic devices. This study reports the synthesis of α-Fe2O3 nanoparticles derived from recycled iron screws using a closed-system nitric acid leaching process, followed by calcination, offering low-cost, eco-friendly, and added-value products that reduce the negative environmental impacts of waste materials. The synthesized material is thoroughly characterized to investigate its phase purity, surface morphology, and suitability for TENG and ethanol-sensing applications. A spray coating technique was employed to deposit the α-Fe2O3 ink onto laser-induced graphene interdigitated electrodes (LIG-IDE) fabricated via CO2 laser engraving of a polyimide flexible substrate. The fabricated α-Fe2O3-based sensor exhibits multifunctional capabilities, owing to the material's biocompatibility. The α-Fe2O3-based sensor exhibits a high performance for ethanol detection at room temperature, with a sensor response of 47 and response/recovery times of 104/126 s, respectively, at 100 ppm. The TENG device exhibits stable output characteristics of 3 V and a maximum power of 9.5 nW. The electrical output from biomechanical motions confirms its potential for energy harvesting applications, and a further self-powered humidity sensor was demonstrated. These results highlight the excellent potential of α-Fe2O3 for both TENG applications and VOCs detection, recommending its use in environmental and industrial monitoring.
{"title":"Transformation of rusted iron into an IDE-based sensor for ethanol detection and self-powered humidity sensing","authors":"Mohamed Ahmed Belal, Sugato Hajra, Ahmed M. Bayoumy, Mohammed H. Eldesouki, Kushal Ruthvik Kaja, Swati Panda, Dandugudumula Ramu, Ahmed Abd El-moneim, PGR Achary, Hoe Joon Kim","doi":"10.1016/j.jmat.2026.101188","DOIUrl":"https://doi.org/10.1016/j.jmat.2026.101188","url":null,"abstract":"Volatile organic compound (VOC) sensors and triboelectric nanogenerators (TENGs) are highly significant applications with broad potential across multiple fields, including non-invasive disease biomarker monitoring and sustainable energy harvesting for electronic devices. This study reports the synthesis of α-Fe<sub>2</sub>O<sub>3</sub> nanoparticles derived from recycled iron screws using a closed-system nitric acid leaching process, followed by calcination, offering low-cost, eco-friendly, and added-value products that reduce the negative environmental impacts of waste materials. The synthesized material is thoroughly characterized to investigate its phase purity, surface morphology, and suitability for TENG and ethanol-sensing applications. A spray coating technique was employed to deposit the α-Fe<sub>2</sub>O<sub>3</sub> ink onto laser-induced graphene interdigitated electrodes (LIG-IDE) fabricated via CO<sub>2</sub> laser engraving of a polyimide flexible substrate. The fabricated α-Fe<sub>2</sub>O<sub>3</sub>-based sensor exhibits multifunctional capabilities, owing to the material's biocompatibility. The α-Fe<sub>2</sub>O<sub>3</sub>-based sensor exhibits a high performance for ethanol detection at room temperature, with a sensor response of 47 and response/recovery times of 104/126 s, respectively, at 100 ppm. The TENG device exhibits stable output characteristics of 3 V and a maximum power of 9.5 nW. The electrical output from biomechanical motions confirms its potential for energy harvesting applications, and a further self-powered humidity sensor was demonstrated. These results highlight the excellent potential of α-Fe<sub>2</sub>O<sub>3</sub> for both TENG applications and VOCs detection, recommending its use in environmental and industrial monitoring.","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"232 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2026-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146230575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Traditional pressure sensors often lack the required linear characteristics in their force-electric transfer functions, which limits the practicality in numerous fields such as the Internet of Things (IoT) and artificial intelligence. This study has developed a self-powered pressure sensor based on Ti3C2Tx-MXene membranes, which are modified with cellulose nanofibrils (CNF) and poly diallyl dimethyl ammonium chloride (PDDA) to create composite membranes with negative and positive charges. Owing to their two-dimensional nanofluidic channels and surface charge properties, these composite membranes can efficiently convert mechanical pressure into electrical signals. Notably, the output signals exhibit a linear relationship with applied pressure, significantly simplifying signal processing. To optimize the sensing performance, the nanofluidic channel structures of the composite membranes were fine-tuned to enhance the sensitivity and response speed. Furthermore, the influence of electrolyte concentrations on sensing performance, including detection range, sensitivity, and stability, was systematically investigated. Experimental results demonstrate that the sensor exhibits excellent linear response, high sensitivity, fast response/recovery times, good stability, and repeatability. This research not only provides new ideas for the design of self-powered sensors but also advances the application of 2D materials in the field of intelligent sensing.
{"title":"Force-driven ionic transfer in dual-charge MXene membranes for self-powered linear pressure sensing","authors":"Yuhan Tang, Xingyao Dai, Junjie Zou, Yang Yue, Yanan Ma, Xin Zhang","doi":"10.1016/j.jmat.2026.101187","DOIUrl":"https://doi.org/10.1016/j.jmat.2026.101187","url":null,"abstract":"Traditional pressure sensors often lack the required linear characteristics in their force-electric transfer functions, which limits the practicality in numerous fields such as the Internet of Things (IoT) and artificial intelligence. This study has developed a self-powered pressure sensor based on Ti<ce:inf loc=\"post\">3</ce:inf>C<ce:inf loc=\"post\">2</ce:inf>T<ce:inf loc=\"post\"><ce:italic>x</ce:italic></ce:inf>-MXene membranes, which are modified with cellulose nanofibrils (CNF) and poly diallyl dimethyl ammonium chloride (PDDA) to create composite membranes with negative and positive charges. Owing to their two-dimensional nanofluidic channels and surface charge properties, these composite membranes can efficiently convert mechanical pressure into electrical signals. Notably, the output signals exhibit a linear relationship with applied pressure, significantly simplifying signal processing. To optimize the sensing performance, the nanofluidic channel structures of the composite membranes were fine-tuned to enhance the sensitivity and response speed. Furthermore, the influence of electrolyte concentrations on sensing performance, including detection range, sensitivity, and stability, was systematically investigated. Experimental results demonstrate that the sensor exhibits excellent linear response, high sensitivity, fast response/recovery times, good stability, and repeatability. This research not only provides new ideas for the design of self-powered sensors but also advances the application of 2D materials in the field of intelligent sensing.","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"3 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2026-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146209808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Piezoelectric ceramics are widely used in the field of sensors due to their ability to sensitively respond to minor stimuli. (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 (BCZT) piezoelectric ceramics have attracted extensive attention in the sensing field due to their high piezoelectric charge coefficient (d33). However, the strong coupling between d33 and the dielectric constant (εr) can degrade the sensing performance. In this study, BCZT porous ceramics with three-dimensionally interconnected pore structure were fabricated using the foam-gelcasting method. The introduction of pores leads to a simultaneous decrease in both d33 and εr. Due to the greater reduction in εr, the piezoelectric voltage coefficient (g33) has an upward trend, achieving the decoupling of the d33 and εr. The piezoelectric voltage coefficient reached 181×10–3 V·m·N–1, the with sensitivity of 56.1 V/kPa and the response time of 0.27 s, respectively. This research provides a widely applicable alternative porous material for piezoelectric sensors.
{"title":"Achieving enhanced piezoelectric performance in three-dimensional interconnected BCZT piezoelectric porous ceramics","authors":"Chenhe Xia, Xiaoying Feng, Jie Xu, Ziyao Wei, Mupeng Zheng, Yudong Hou, Feng Gao","doi":"10.1016/j.jmat.2026.101183","DOIUrl":"https://doi.org/10.1016/j.jmat.2026.101183","url":null,"abstract":"Piezoelectric ceramics are widely used in the field of sensors due to their ability to sensitively respond to minor stimuli. (Ba<sub>0.85</sub>Ca<sub>0.15</sub>)(Zr<sub>0.1</sub>Ti<sub>0.9</sub>)O<sub>3</sub> (BCZT) piezoelectric ceramics have attracted extensive attention in the sensing field due to their high piezoelectric charge coefficient (<em>d</em><sub>33</sub>). However, the strong coupling between <em>d</em><sub>33</sub> and the dielectric constant (<em>ε</em><sub>r</sub>) can degrade the sensing performance. In this study, BCZT porous ceramics with three-dimensionally interconnected pore structure were fabricated using the foam-gelcasting method. The introduction of pores leads to a simultaneous decrease in both <em>d</em><sub>33</sub> and <em>ε</em><sub>r</sub>. Due to the greater reduction in <em>ε</em><sub>r</sub>, the piezoelectric voltage coefficient (<em>g</em><sub>33</sub>) has an upward trend, achieving the decoupling of the <em>d</em><sub>33</sub> and <em>ε</em><sub>r</sub>. The piezoelectric voltage coefficient reached 181×10<sup>–3</sup> V·m·N<sup>–1</sup>, the with sensitivity of 56.1 V/kPa and the response time of 0.27 s, respectively. This research provides a widely applicable alternative porous material for piezoelectric sensors.","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"46 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146146190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dimensionally stable anodes (DSAs) provide notable advantages in selecting anode materials for copper foil electrolysis. Among them, titanium-based oxide electrodes are extensively employed in the electrochemical industry owing to their superior corrosion resistance and low oxygen evolution potential. In this study, RuO2–ZrO2–rGO titanium-based composite electrodes were prepared by thermal decomposition to improve catalytic activity, corrosion resistance, and service life. The results revealed that the incorporation of ZrO2 markedly enhanced the corrosion resistance of the electrode, while the introduction of reduced graphene oxide (rGO) significantly improved its electrical conductivity and oxygen evolution reaction (OER) performance. Electrochemical measurements demonstrated that the RuO2–ZrO2–rGO titanium electrode exhibited a low onset potential for oxygen evolution (1.191 V vs. SCE), a small overpotential of 167 mV at 10 mA/cm2, and a Tafel slope of 47 mV/dec, indicating high electrocatalytic efficiency. The electrode showed optimal stability when fabricated at a thermal decomposition temperature of 400 °C with an rGO doping concentration of 0.6 g/L. These findings suggest that the RuO2–ZrO2–rGO titanium-based composite anode is a durable and efficient candidate for copper foil electrolysis, holding considerable promise for industrial application.
尺寸稳定的阳极在铜箔电解阳极材料的选择上具有显著的优势。其中，钛基氧化物电极以其优异的耐腐蚀性和低析氧电位在电化学工业中得到了广泛的应用。本研究采用热分解法制备了RuO2-ZrO2-rGO钛基复合电极，提高了催化活性、耐腐蚀性和使用寿命。结果表明，ZrO2的掺入显著提高了电极的耐腐蚀性，而还原氧化石墨烯（rGO）的掺入显著提高了电极的导电性和析氧反应（OER）性能。电化学测量表明，RuO2-ZrO2-rGO钛电极具有较低的析氧起始电位（1.191 V vs. SCE）， 10 mA/cm2时过电位较小，为167 mV， Tafel斜率为47 mV/dec，表明具有较高的电催化效率。在热分解温度为400℃，还原氧化石墨烯掺杂浓度为0.6 g/L的条件下制备的电极稳定性最佳。这些发现表明，RuO2-ZrO2-rGO钛基复合阳极是一种耐用、高效的铜箔电解材料，具有相当大的工业应用前景。
{"title":"Oxygen evolution activity of RuO2–ZrO2–rGO titanium-based composite anodes prepared via DSA and their application in electrolytic copper foil production","authors":"Zhiyao Ming, Wenchang Wang, Xing Bao, Tian Fang, Denghui Tang, Zhidong Chen","doi":"10.1016/j.jmat.2026.101182","DOIUrl":"https://doi.org/10.1016/j.jmat.2026.101182","url":null,"abstract":"Dimensionally stable anodes (DSAs) provide notable advantages in selecting anode materials for copper foil electrolysis. Among them, titanium-based oxide electrodes are extensively employed in the electrochemical industry owing to their superior corrosion resistance and low oxygen evolution potential. In this study, RuO<sub>2</sub>–ZrO<sub>2</sub>–rGO titanium-based composite electrodes were prepared by thermal decomposition to improve catalytic activity, corrosion resistance, and service life. The results revealed that the incorporation of ZrO<sub>2</sub> markedly enhanced the corrosion resistance of the electrode, while the introduction of reduced graphene oxide (rGO) significantly improved its electrical conductivity and oxygen evolution reaction (OER) performance. Electrochemical measurements demonstrated that the RuO<sub>2</sub>–ZrO<sub>2</sub>–rGO titanium electrode exhibited a low onset potential for oxygen evolution (1.191 V <em>vs.</em> SCE), a small overpotential of 167 mV at 10 mA/cm<sup>2</sup>, and a Tafel slope of 47 mV/dec, indicating high electrocatalytic efficiency. The electrode showed optimal stability when fabricated at a thermal decomposition temperature of 400 °C with an rGO doping concentration of 0.6 g/L. These findings suggest that the RuO<sub>2</sub>–ZrO<sub>2</sub>–rGO titanium-based composite anode is a durable and efficient candidate for copper foil electrolysis, holding considerable promise for industrial application.","PeriodicalId":16173,"journal":{"name":"Journal of Materiomics","volume":"39 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2026-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146122214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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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