Single atom catalysts have garnered significant attention lately for their enhanced activity and selectivity towards CO2 reduction reaction. Nevertheless, the role of varying dopant concentration of the support on a catalyst’s activity, stability and selectivity, although pivotal for the design and development of an efficient catalyst, still remains insufficiently understood. Employing first-principles calculations based on density functional theory, this work explores the role of dopant concentration on the stability, selectivity and activity of transition metal single atom catalysts. Considering four representative single atom catalysts on Boron doped graphene support, our results indicated that higher boron concentration enhances the SACs’ stability, albeit weakens CO2 adsorption. All the catalyst candidates considered in this study, except Mo@B1–Gr, Ru@B3–Gr, and Pt@B3–Gr, showed strong CO2RR selectivity. Notably, Os@B1–Gr reduces CO2 to CH4 with − 0.44 V of UL. The observed variation in SACs’ stability and activity is finally attributed to the charge redistribution and varied metal adsorbates hybridization causing significant alterations in the electronic structures of the systems considered.
{"title":"A First-Principles Study on the Catalytic Reduction of CO2 to CH4 on Boron Doped Graphene: Role of B-Concentration","authors":"Sudatta Giri, Claretraja Selvaraj, Paawan Chandrakanth, Gokula Krishnan Manikandan, Devi Saraswathi Ravichandran, Purushothaman Manivannan, Debolina Misra","doi":"10.1007/s10562-026-05350-3","DOIUrl":"10.1007/s10562-026-05350-3","url":null,"abstract":"<div><p>Single atom catalysts have garnered significant attention lately for their enhanced activity and selectivity towards CO<sub>2</sub> reduction reaction. Nevertheless, the role of varying dopant concentration of the support on a catalyst’s activity, stability and selectivity, although pivotal for the design and development of an efficient catalyst, still remains insufficiently understood. Employing first-principles calculations based on density functional theory, this work explores the role of dopant concentration on the stability, selectivity and activity of transition metal single atom catalysts. Considering four representative single atom catalysts on Boron doped graphene support, our results indicated that higher boron concentration enhances the SACs’ stability, albeit weakens CO<sub>2</sub> adsorption. All the catalyst candidates considered in this study, except Mo@B<sub>1</sub>–Gr, Ru@B<sub>3</sub>–Gr, and Pt@B<sub>3</sub>–Gr, showed strong CO<sub>2</sub>RR selectivity. Notably, Os@B<sub>1</sub>–Gr reduces CO<sub>2</sub> to CH<sub>4</sub> with − 0.44 V of U<sub>L</sub>. The observed variation in SACs’ stability and activity is finally attributed to the charge redistribution and varied metal adsorbates hybridization causing significant alterations in the electronic structures of the systems considered.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"156 4","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147440821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-03-09DOI: 10.1007/s10562-026-05337-0
Swapnil T. Kolape, Kiran S. Bagade, Shital D. Gaikwad, Ganesh D. Kokate
A novel magnetically supported palladium catalyst was synthesized via a simple one-pot method and applied for carbon–carbon bond-forming reactions. The catalyst shows outstanding performance in both Suzuki–Miyaura and Mizoroki–Heck reactions, achieving high yields within short reaction times. Its magnetic properties enabled rapid and efficient recovery using an external magnet, allowing reuse for up to six successive cycles with negligible loss of catalytic activity. Structural and morphological characterizations, such as X-ray Diffraction (XRD), Transmission Electron Microscopy (TEM), and X-ray Photoelectron Spectroscopy (XPS), confirmed the stability and distribution of palladium on the magnetic support. The combination of facile synthesis, high catalytic efficiency, and excellent recyclability makes this system a promising alternative to conventional palladium catalysts for sustainable organic synthesis.
{"title":"Magnetically Recoverable CDA@IM-IL@MnFe2O4-SiO2–Pd Catalyst: A Robust System for C–C Bond Formation Reactions","authors":"Swapnil T. Kolape, Kiran S. Bagade, Shital D. Gaikwad, Ganesh D. Kokate","doi":"10.1007/s10562-026-05337-0","DOIUrl":"10.1007/s10562-026-05337-0","url":null,"abstract":"<div><p>A novel magnetically supported palladium catalyst was synthesized via a simple one-pot method and applied for carbon–carbon bond-forming reactions. The catalyst shows outstanding performance in both Suzuki–Miyaura and Mizoroki–Heck reactions, achieving high yields within short reaction times. Its magnetic properties enabled rapid and efficient recovery using an external magnet, allowing reuse for up to six successive cycles with negligible loss of catalytic activity. Structural and morphological characterizations, such as X-ray Diffraction (XRD), Transmission Electron Microscopy (TEM), and X-ray Photoelectron Spectroscopy (XPS), confirmed the stability and distribution of palladium on the magnetic support. The combination of facile synthesis, high catalytic efficiency, and excellent recyclability makes this system a promising alternative to conventional palladium catalysts for sustainable organic synthesis.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"156 4","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147440820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-03-09DOI: 10.1007/s10562-026-05344-1
Zita Szabó, Zsófia Császár, Margit Kovács, József Bakos, Gergely Farkas
New chiral bidentate phosphine-aminophosphine ligands based on a pentane-2,4-diyl backbone, with the general formula Ph2PCH(CH3)CH2CH(CH3)N(R1)PR22 (R1 = Me, Et, nPr, nBu, iPr; R2 = Ph, Cy), have been developed and applied in the copper-catalyzed asymmetric hydrogenation of simple ketones. The addition of achiral monodentate phosphines as co-ligands significantly enhanced both catalytic turnover and enantioselectivity. It was observed that the steric properties of the ligands predominantly influence catalytic activity and enantioinduction, whereas their electronic characteristics play a secondary role. Comprehensive screening of reaction conditions, including variation of the metal source and careful selection of both chiral and achiral ligands with appropriately tuned stereochemistry, enabled the hydrogenation to proceed with low catalyst loadings (0.5 mol%) while maintaining high yields and enantioselectivities (up to 92% ee) across a broad substrate scope. Based on experimental findings and relevant literature precedents, a mechanistic proposal is presented to explain the observed reactivity trends.
{"title":"Chiral Phosphine-Aminophosphine Ligands for Copper-Catalyzed Asymmetric Hydrogenation","authors":"Zita Szabó, Zsófia Császár, Margit Kovács, József Bakos, Gergely Farkas","doi":"10.1007/s10562-026-05344-1","DOIUrl":"10.1007/s10562-026-05344-1","url":null,"abstract":"<div><p>New chiral bidentate phosphine-aminophosphine ligands based on a pentane-2,4-diyl backbone, with the general formula Ph<sub>2</sub>PCH(CH<sub>3</sub>)CH<sub>2</sub>CH(CH<sub>3</sub>)N(R<sup>1</sup>)PR<sup>2</sup><sub>2</sub> (R<sup>1</sup> = Me, Et, <i>n</i>Pr, <i>n</i>Bu, <i>i</i>Pr; R<sup>2</sup> = Ph, Cy), have been developed and applied in the copper-catalyzed asymmetric hydrogenation of simple ketones. The addition of achiral monodentate phosphines as co-ligands significantly enhanced both catalytic turnover and enantioselectivity. It was observed that the steric properties of the ligands predominantly influence catalytic activity and enantioinduction, whereas their electronic characteristics play a secondary role. Comprehensive screening of reaction conditions, including variation of the metal source and careful selection of both chiral and achiral ligands with appropriately tuned stereochemistry, enabled the hydrogenation to proceed with low catalyst loadings (0.5 mol%) while maintaining high yields and enantioselectivities (up to 92% <i>ee</i>) across a broad substrate scope. Based on experimental findings and relevant literature precedents, a mechanistic proposal is presented to explain the observed reactivity trends.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div><div><p>Graphical Abstract</p></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"156 4","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10562-026-05344-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147440917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-03-07DOI: 10.1007/s10562-026-05349-w
Bharati Mourya, Shankar B. Chaudhari, Sandip T. Gadge, Bhalchandra M. Bhanage
A sustainable, new, and efficient protocol has been developed, which provides a mild route to primary amides via Pd-catalyzed aminocarbonylation of aryldiazonium tetrafluoroborate salts with an ammonia surrogate under ligand and base-free conditions. The employment of readily available aryldiazonium salts, derived from inexpensive anilines, as aryl sources renders this transformation both practically and economically. Characteristically, this study reports the first ligand and base-free aminocarbonylation employing an ammonia surrogate with diazonium salts. The methodology demonstrates broad substrate compatibility, tolerating diverse functional groups and delivering the desired primary amides in good to excellent yields. This operationally simple and environmentally benign approach eliminates the need for gaseous ammonia and external ligand and bases, offering a mild, atom-economical, and efficient strategy for primary amide synthesis.
Graphical Abstract
In this protocol, a novel, sustainable, simple and efficient palladium-catalyzed protocol has been developed for the access of primary amides via aminocarbonylation of aryldiazonium tetrafluoroborate salts with an ammonia surrogate, providing a mild route to primary amides under ligand and base-free conditions.
{"title":"Pd-Catalyzed Aminocarbonylation of Aryldiazonium Tetrafluoroborate Salts with Ammonia Surrogate to Access Primary Amides Under Ligand and Base-Free Conditions","authors":"Bharati Mourya, Shankar B. Chaudhari, Sandip T. Gadge, Bhalchandra M. Bhanage","doi":"10.1007/s10562-026-05349-w","DOIUrl":"10.1007/s10562-026-05349-w","url":null,"abstract":"<div><p>A sustainable, new, and efficient protocol has been developed, which provides a mild route to primary amides via Pd-catalyzed aminocarbonylation of aryldiazonium tetrafluoroborate salts with an ammonia surrogate under ligand and base-free conditions. The employment of readily available aryldiazonium salts, derived from inexpensive anilines, as aryl sources renders this transformation both practically and economically. Characteristically, this study reports the first ligand and base-free aminocarbonylation employing an ammonia surrogate with diazonium salts. The methodology demonstrates broad substrate compatibility, tolerating diverse functional groups and delivering the desired primary amides in good to excellent yields. This operationally simple and environmentally benign approach eliminates the need for gaseous ammonia and external ligand and bases, offering a mild, atom-economical, and efficient strategy for primary amide synthesis.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div><div><p>In this protocol, a novel, sustainable, simple and efficient palladium-catalyzed protocol has been developed for the access of primary amides via aminocarbonylation of aryldiazonium tetrafluoroborate salts with an ammonia surrogate, providing a mild route to primary amides under ligand and base-free conditions.</p></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"156 4","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147362950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-03-07DOI: 10.1007/s10562-026-05336-1
Tayyaba Batool, Mansor Hussain, Muhammad Saeed, Nadia Akram, Muhammad Usman, Javeria Hassan, Dania Arif
The pollution-free combustion and high energy density of hydrogen gas make it a suitable and clean energy carrier. However, its sustainable, safe, and efficient production and transportation are the major challenges that limit the practical applications of hydrogen as a source of energy. In this study, hydrogen gas was produced via Platinum supported on carbon (Pt/C) catalyzed decomposition of formic acid, a liquid hydrogen carrier. Various Pt/C catalysts loaded with 1, 4, 6, 8, and 10% Pt were prepared and utilized as catalysts for the decomposition of formic acid. The 6% Pt/C was found as effective catalyst, achieving maximum gas production within the shortest reaction time under mild conditions (60 °C, 0.2 M formic acid, 0.04 g catalyst) in this study. The progress of the reaction was monitored by measuring the total volume of gas produced by the water displacement method. Kinetic analysis based on a Langmuir–Hinshelwood model yielded an apparent rate constant of 0.2136 min− 1, indicating efficient surface-mediated catalysis. The energy of activation was calculated as 81.1 kJ/mol. It was characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), energy dispersive X-ray spectroscopy (EDX), and scanning electron microscopy (SEM). The results demonstrate that optimized Pt/C catalysts enable efficient, low-temperature hydrogen generation from formic acid, highlighting the potential of this system as a viable route for hydrogen storage and on-demand hydrogen production.
Graphical Abstract
Production of Hydrogen by catalytic decomposition of formic acid
{"title":"Production of Hydrogen Gas via Pt/C Catalyzed Decomposition of Formic Acid","authors":"Tayyaba Batool, Mansor Hussain, Muhammad Saeed, Nadia Akram, Muhammad Usman, Javeria Hassan, Dania Arif","doi":"10.1007/s10562-026-05336-1","DOIUrl":"10.1007/s10562-026-05336-1","url":null,"abstract":"<div><p>The pollution-free combustion and high energy density of hydrogen gas make it a suitable and clean energy carrier. However, its sustainable, safe, and efficient production and transportation are the major challenges that limit the practical applications of hydrogen as a source of energy. In this study, hydrogen gas was produced via Platinum supported on carbon (Pt/C) catalyzed decomposition of formic acid, a liquid hydrogen carrier. Various Pt/C catalysts loaded with 1, 4, 6, 8, and 10% Pt were prepared and utilized as catalysts for the decomposition of formic acid. The 6% Pt/C was found as effective catalyst, achieving maximum gas production within the shortest reaction time under mild conditions (60 °C, 0.2 M formic acid, 0.04 g catalyst) in this study. The progress of the reaction was monitored by measuring the total volume of gas produced by the water displacement method. Kinetic analysis based on a Langmuir–Hinshelwood model yielded an apparent rate constant of 0.2136 min<sup>− 1</sup>, indicating efficient surface-mediated catalysis. The energy of activation was calculated as 81.1 kJ/mol. It was characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), energy dispersive X-ray spectroscopy (EDX), and scanning electron microscopy (SEM). The results demonstrate that optimized Pt/C catalysts enable efficient, low-temperature hydrogen generation from formic acid, highlighting the potential of this system as a viable route for hydrogen storage and on-demand hydrogen production.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div><div><p>Production of Hydrogen by catalytic decomposition of formic acid</p></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"156 4","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147362952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-03-07DOI: 10.1007/s10562-026-05322-7
Liyun Zhang, Hisahiro Einaga
Catalytic oxidation of volatile organic compounds (VOCs) in intermittent heating mode is generally energy efficient. However, the application of intermittent heating, especially with microwave (MW) assistance, remains a severe challenge due to its requirements on the dielectric and VOCs adsorption properties of the catalyst. Here, potassium ion exchanged ZSM-5 (KZ-23) with the best MW heating performance was synthesized and used as the support, and three Mn modified KZ-23 catalysts with different Mn loadings were prepared by a simple impregnation method. 20Mn/KZ-23 (loading 20 wt% Mn) shows excellent catalytic activity in MW-assisted catalytic oxidation of benzene due to its relatively high content of Mn2O3 phase and low average oxidation state of Mn. Moreover, the adsorption capacity of 20Mn/KZ-23 for benzene and its rapid response to MW enables it to exhibit satisfactory performance in intermittent heating mode. The average benzene conversion over the catalyst is 57.1%, while its energy consumption is only 12.3% of that in continuous heating mode with a similar conversion. This work provides a guidance for the rational design of energy-efficient heating modes in MW-assisted VOC catalytic oxidation.
{"title":"Energy-Efficient Microwave-Assisted Benzene Oxidation over MnOx/K-ZSM-5 Zeolite in Intermittent Heating Mode","authors":"Liyun Zhang, Hisahiro Einaga","doi":"10.1007/s10562-026-05322-7","DOIUrl":"10.1007/s10562-026-05322-7","url":null,"abstract":"<div><p>Catalytic oxidation of volatile organic compounds (VOCs) in intermittent heating mode is generally energy efficient. However, the application of intermittent heating, especially with microwave (MW) assistance, remains a severe challenge due to its requirements on the dielectric and VOCs adsorption properties of the catalyst. Here, potassium ion exchanged ZSM-5 (KZ-23) with the best MW heating performance was synthesized and used as the support, and three Mn modified KZ-23 catalysts with different Mn loadings were prepared by a simple impregnation method. 20Mn/KZ-23 (loading 20 wt% Mn) shows excellent catalytic activity in MW-assisted catalytic oxidation of benzene due to its relatively high content of Mn<sub>2</sub>O<sub>3</sub> phase and low average oxidation state of Mn. Moreover, the adsorption capacity of 20Mn/KZ-23 for benzene and its rapid response to MW enables it to exhibit satisfactory performance in intermittent heating mode. The average benzene conversion over the catalyst is 57.1%, while its energy consumption is only 12.3% of that in continuous heating mode with a similar conversion. This work provides a guidance for the rational design of energy-efficient heating modes in MW-assisted VOC catalytic oxidation.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"156 4","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147362953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Enantioselective catalytic oxidation of d-glucose has been extensively applied in food, pharmaceutical, and chemical industries. In this work, a nitrogen-rich graphitic carbon nitride (g-C3N5) was synthesized through the pyrolysis of 3-amino-1,2,4-triazole. This material exhibited a reduced band gap, enhanced electrical conductivity, and superior photocatalytic performance compared to graphitic C3N4 (g-C3N4), facilitating more efficient photocatalytic oxidation of glucose with higher yield. The surface of g-C3N5 was subsequently capped with a molecularly imprinted polymer (MIP) layer by employing d-glucose as the template molecule, and 4-vinylphenylboronic acid as the functional monomer. The resulting g-C3N5-MIPs demonstrated the ability to selectively photocatalyze the oxidation of d-glucose, producing d-glu acid and H2O2. Notably, the relative selectivity coefficient for d-glucose over l-glucose increased by a factor of 8.79 compared to the non-imprinted g-C3N5. This work presents an effective approach for synthesizing advanced g-C3N5-MIP-based photocatalysts, and highlights their potential for highly enantioselective aerobic oxidation of d-glucose.
{"title":"Molecularly Imprinted-g-C3N5 for Photocatalytic Oxidation of d-glucose","authors":"Zhanqiu Tang, Yuqing Fu, Xinyi Feng, Zhenglong Wu, Weidong Qin","doi":"10.1007/s10562-026-05348-x","DOIUrl":"10.1007/s10562-026-05348-x","url":null,"abstract":"<div><p>Enantioselective catalytic oxidation of <span>d</span>-glucose has been extensively applied in food, pharmaceutical, and chemical industries. In this work, a nitrogen-rich graphitic carbon nitride (<i>g-</i>C<sub>3</sub>N<sub>5</sub>) was synthesized through the pyrolysis of 3-amino-1,2,4-triazole. This material exhibited a reduced band gap, enhanced electrical conductivity, and superior photocatalytic performance compared to graphitic C<sub>3</sub>N<sub>4</sub> (<i>g-</i>C<sub>3</sub>N<sub>4</sub>), facilitating more efficient photocatalytic oxidation of glucose with higher yield. The surface of <i>g-</i>C<sub>3</sub>N<sub>5</sub> was subsequently capped with a molecularly imprinted polymer (MIP) layer by employing <span>d</span>-glucose as the template molecule, and 4-vinylphenylboronic acid as the functional monomer. The resulting <i>g-</i>C<sub>3</sub>N<sub>5</sub>-MIPs demonstrated the ability to selectively photocatalyze the oxidation of <span>d</span>-glucose, producing <span>d</span>-glu acid and H<sub>2</sub>O<sub>2</sub>. Notably, the relative selectivity coefficient for <span>d</span>-glucose over <span>l</span>-glucose increased by a factor of 8.79 compared to the non-imprinted <i>g-</i>C<sub>3</sub>N<sub>5</sub>. This work presents an effective approach for synthesizing advanced g-C<sub>3</sub>N<sub>5</sub>-MIP-based photocatalysts, and highlights their potential for highly enantioselective aerobic oxidation of <span>d</span>-glucose.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"156 4","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147362954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-03-07DOI: 10.1007/s10562-026-05342-3
Tun Nile, Hao Sun, Tingting Xu, Yu Yang, Caimei He, Wen Chen, Peichao Lian
The mineralization method boasts advantages including high product purity, controllable crystal structure and good reproducibility, making it a promising approach for the preparation of black phosphorus (BP). However, the employed Sn24P19.3I8 catalyst suffers from pronounced sintering during the preparation process, which severely compromises its catalytic activity and cycle period. The yield (56.0%) was significantly low after two cycles of BP preparation by using Sn24P19.3I8. Herein, intrinsically low thermal conductivity (1.73 W m−1 K−1) was demonstrated to the decreased catalytic performance of Sn24P19.3I8 catalyst. To overcome this issue, graphite was integrated with Sn24P19.3I8 (Sn24P19.3I8/Gra) for improving the thermal conductivity (15.75 W m−1 K−1), which effectively alleviated the issue of local heat accumulation and therefore overcame sintering of Sn24P19.3I8. As expected, an exceptionally high yield of 83.3% was achieved even after nine cycles of BP preparation based on the Sn24P19.3I8/Gra composite catalyst, highlighting the catalytic robustness. This work provided a feasible production of high-quality BP, paving the way for its broad industrial application.
Graphical Abstract
矿化法具有产品纯度高、晶体结构可控、重现性好等优点，是制备黑磷（BP）的一种很有前途的方法。然而，所采用的Sn24P19.3I8催化剂在制备过程中存在明显的烧结现象，严重影响了其催化活性和循环周期。以Sn24P19.3I8为原料制备BP，经过2次循环后，收率较低（56.0%）。本研究表明，Sn24P19.3I8催化剂的本质低导热系数（1.73 W m−1 K−1）导致其催化性能下降。为了克服这一问题，石墨与Sn24P19.3I8 （Sn24P19.3I8/Gra）相结合，提高了导热系数（15.75 W m−1 K−1），有效缓解了局部积热问题，从而克服了Sn24P19.3I8的烧结问题。正如预期的那样，在Sn24P19.3I8/Gra复合催化剂的基础上，经过9次循环制备BP，收率达到了83.3%，突出了催化鲁棒性。为高质量BP的生产提供了可行的方法，为其广泛的工业应用铺平了道路。图形抽象
{"title":"Efficient Preparation of Black Phosphorus Enabled by Sn24P19.3I8/Graphite Catalyst with Enhanced Thermal Conductivity","authors":"Tun Nile, Hao Sun, Tingting Xu, Yu Yang, Caimei He, Wen Chen, Peichao Lian","doi":"10.1007/s10562-026-05342-3","DOIUrl":"10.1007/s10562-026-05342-3","url":null,"abstract":"<div><p>The mineralization method boasts advantages including high product purity, controllable crystal structure and good reproducibility, making it a promising approach for the preparation of black phosphorus (BP). However, the employed Sn<sub>24</sub>P<sub>19.3</sub>I<sub>8</sub> catalyst suffers from pronounced sintering during the preparation process, which severely compromises its catalytic activity and cycle period. The yield (56.0%) was significantly low after two cycles of BP preparation by using Sn<sub>24</sub>P<sub>19.3</sub>I<sub>8</sub>. Herein, intrinsically low thermal conductivity (1.73 W m<sup>−1</sup> K<sup>−1</sup>) was demonstrated to the decreased catalytic performance of Sn<sub>24</sub>P<sub>19.3</sub>I<sub>8</sub> catalyst. To overcome this issue, graphite was integrated with Sn<sub>24</sub>P<sub>19.3</sub>I<sub>8</sub> (Sn<sub>24</sub>P<sub>19.3</sub>I<sub>8</sub>/Gra) for improving the thermal conductivity (15.75 W m<sup>−1</sup> K<sup>−1</sup>), which effectively alleviated the issue of local heat accumulation and therefore overcame sintering of Sn<sub>24</sub>P<sub>19.3</sub>I<sub>8</sub>. As expected, an exceptionally high yield of 83.3% was achieved even after nine cycles of BP preparation based on the Sn<sub>24</sub>P<sub>19.3</sub>I<sub>8</sub>/Gra composite catalyst, highlighting the catalytic robustness. This work provided a feasible production of high-quality BP, paving the way for its broad industrial application.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"156 4","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147362951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Propane dehydrogenation (PDH) to propylene is a key industrial process, and the development of high-performance non-precious metal catalysts remains a significant challenge. In this work, hierarchical porous SBA-15 was prepared as a catalyst support, and bimetallic Ni-GaOx species were loaded onto SBA-15 surface via incipient wetness impregnation to fabricate related catalysts. The catalyst structure and PDH performance were systematically investigated using a combination of characterization techniques, with catalytic activity evaluated in a fixed-bed reactor. Results showed that the 20Ni/SBA-15 catalyst (single Ni-loaded) exhibited a propane conversion of ~ 10%, but no propylene was detected due to severe non-selective side reactions. With increasing Ga2O3 content, propylene yield gradually increased, and the 20Ni1Ga2/SBA-15 catalyst achieved an excellent propylene yield with sustained high selectivity. Methane and ethylene were generated as by-products during the reaction. Eventually, thermogravimetric analysis was performed on both fresh and spent catalysts, which confirmed the formation of graphitic coke deposits. This work provides a feasible strategy for designing and optimizing Ni-based catalysts via Ga2O3 modification, which is expected to guide the development of high-selectivity and anti-coking dehydrogenation catalysts.
{"title":"Construction of Ni-GaOx Sites on Hierarchical Porous SBA-15 Support for Propane Dehydrogenation","authors":"Huibo Qin, Zhenkun Zhang, Jian Shen, Zebing Bao, Ziming Huang, Yinjie Liu, Linhai Duan, Xiuhong Meng, Leiming Tao","doi":"10.1007/s10562-026-05319-2","DOIUrl":"10.1007/s10562-026-05319-2","url":null,"abstract":"<div><p>Propane dehydrogenation (PDH) to propylene is a key industrial process, and the development of high-performance non-precious metal catalysts remains a significant challenge. In this work, hierarchical porous SBA-15 was prepared as a catalyst support, and bimetallic Ni-GaO<sub>x</sub> species were loaded onto SBA-15 surface via incipient wetness impregnation to fabricate related catalysts. The catalyst structure and PDH performance were systematically investigated using a combination of characterization techniques, with catalytic activity evaluated in a fixed-bed reactor. Results showed that the 20Ni/SBA-15 catalyst (single Ni-loaded) exhibited a propane conversion of ~ 10%, but no propylene was detected due to severe non-selective side reactions. With increasing Ga<sub>2</sub>O<sub>3</sub> content, propylene yield gradually increased, and the 20Ni<sub>1</sub>Ga<sub>2</sub>/SBA-15 catalyst achieved an excellent propylene yield with sustained high selectivity. Methane and ethylene were generated as by-products during the reaction. Eventually, thermogravimetric analysis was performed on both fresh and spent catalysts, which confirmed the formation of graphitic coke deposits. This work provides a feasible strategy for designing and optimizing Ni-based catalysts via Ga<sub>2</sub>O<sub>3</sub> modification, which is expected to guide the development of high-selectivity and anti-coking dehydrogenation catalysts.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"156 4","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147363217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-03-01DOI: 10.1007/s10562-026-05332-5
Zain ul Abideen, Salma Shad, Muhammad Usman Farooq, Uswa Hassan, Aliya Ibrar, Muzaffar Iqbal
Herein, zirconium-doped ZnO nanostructures were prepared by a hydrothermal approach with different concentrations of dopants (2%, 4%, and 6%). The as-synthesized materials were characterized through UV-Visible spectroscopy, X-ray diffraction (XRD), Photoluminescence (PL) spectroscopy, scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), and elemental mapping. The UV-Visible results showed that Zr doping enhanced the absorption range due to the introduction of additional Fermi levels above the valence band of pure ZnO, which enabled the absorption of photons with lower energy. The PL study revealed that charge separation efficiency is enhanced, and recombination processes are deterred by doping in pure ZnO. XRD analysis indicated that the synthesized materials possess a high degree of crystallinity, and the successful incorporation of Zr4+ ions onto the ZnO crystal lattice was confirmed. EDX and elemental mapping results indicate the presence of backbone elements (Zn, O, and Zr) and a uniform distribution of elements in the as-synthesized samples. The as-prepared nanostructures were employed as photoanodes in dye-sensitized solar cells (DSSCs) and photocatalytic reduction of salicylic acid in wastewater. Among the samples, the 6% Zr doped ZnO showed excellent performance in both photovoltaic and photocatalytic applications. This high efficiency is attributed to high charge separation efficiency and large light absorption ability. This synthesis approach demonstrated the considerable potential in enhancing both the solar energy conversion efficiency of DSSCs and the photocatalytic potential of pure ZnO nanorods (NRs).
{"title":"Tailoring the Optoelectronics Properties of ZnO Nanostructures Through Metal Doping for Efficient Photocatalysis and Photovoltaic Application","authors":"Zain ul Abideen, Salma Shad, Muhammad Usman Farooq, Uswa Hassan, Aliya Ibrar, Muzaffar Iqbal","doi":"10.1007/s10562-026-05332-5","DOIUrl":"10.1007/s10562-026-05332-5","url":null,"abstract":"<div><p>Herein, zirconium-doped ZnO nanostructures were prepared by a hydrothermal approach with different concentrations of dopants (2%, 4%, and 6%). The as-synthesized materials were characterized through UV-Visible spectroscopy, X-ray diffraction (XRD), Photoluminescence (PL) spectroscopy, scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), and elemental mapping. The UV-Visible results showed that Zr doping enhanced the absorption range due to the introduction of additional Fermi levels above the valence band of pure ZnO, which enabled the absorption of photons with lower energy. The PL study revealed that charge separation efficiency is enhanced, and recombination processes are deterred by doping in pure ZnO. XRD analysis indicated that the synthesized materials possess a high degree of crystallinity, and the successful incorporation of Zr<sup>4+</sup> ions onto the ZnO crystal lattice was confirmed. EDX and elemental mapping results indicate the presence of backbone elements (Zn, O, and Zr) and a uniform distribution of elements in the as-synthesized samples. The as-prepared nanostructures were employed as photoanodes in dye-sensitized solar cells (DSSCs) and photocatalytic reduction of salicylic acid in wastewater. Among the samples, the 6% Zr doped ZnO showed excellent performance in both photovoltaic and photocatalytic applications. This high efficiency is attributed to high charge separation efficiency and large light absorption ability. This synthesis approach demonstrated the considerable potential in enhancing both the solar energy conversion efficiency of DSSCs and the photocatalytic potential of pure ZnO nanorods (NRs).</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"156 4","pages":""},"PeriodicalIF":2.3,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147335729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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