ChemCatChem最新文献_第2页

Mixed Oxides for Simultaneous CO and Toluene Catalytic Oxidation: Effect of Mn/Cu Ratio on Catalytic Performances 混合氧化物同时催化氧化CO和甲苯：Mn/Cu比对催化性能的影响

IF 3.9 3区化学

ChemCatChem Pub Date : 2026-04-06 DOI: 10.1002/cctc.202501805

Julien Machinski, Eric Genty, Jonathan Fabián Sierra-Cantor, Christophe Poupin, Valeria La Parola, Stéphane Siffert, Elise Berrier, Leonarda Francesca Liotta, Renaud Cousin

{"title":"Mixed Oxides for Simultaneous CO and Toluene Catalytic Oxidation: Effect of Mn/Cu Ratio on Catalytic Performances","authors":"Julien Machinski, Eric Genty, Jonathan Fabián Sierra-Cantor, Christophe Poupin, Valeria La Parola, Stéphane Siffert, Elise Berrier, Leonarda Francesca Liotta, Renaud Cousin","doi":"10.1002/cctc.202501805","DOIUrl":"10.1002/cctc.202501805","url":null,"abstract":"Manganese-copper (Mn-Cu) mixed oxides are promising catalysts for abatement of incomplete combustion products from domestic wood burning, notably CO and Volatile Organic Compounds (VOCs). In this paper, the influence of the Mn/Cu molar ratio on structure, redox properties, and catalytic performances was investigated. Mixed oxides were synthesized by oxalate co-precipitation and calcined under air at 500°C. Physicochemical characterization (XRD, Raman, N2-physisorption, XPS, H2-TPR) revealed strong Mn─Cu interaction. Catalytic tests for total oxidation of CO, toluene, and their mixture showed that copper-rich oxides, especially Cu1Mn0.25Ox, achieved the best performance at low temperature (T50 = 49°C and 230°C for the oxidation of CO and toluene respectively). In alternating feeding, the presence of CO promotes the oxidation of toluene at low temperature, while an excess of Cu in the material ensures full CO2 selectivity. For mixed oxides, the linear correlation between Cu2+ → Cu+ reducibility and T50 for toluene oxidation in presence of CO demonstrates that the incorporation of Mn into Cu oxides enhances oxidation. Overall, tuning the Mn/Cu ratio enables efficient, selective, and simultaneous removal of CO and VOCs, providing a cost-effective solution for emission control from biomass combustion.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"18 7","pages":""},"PeriodicalIF":3.9,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/cctc.202501805","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147668042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis of 2-Amino Benzothiophenes Through C–S Bond Formation 通过C-S键合成2-氨基苯并噻吩

IF 3.9 3区化学

ChemCatChem Pub Date : 2026-04-06 DOI: 10.1002/cctc.202501860

Sergei O. Kopytov, Dmitry I. Bugaenko, Dmitry A. Dulov, Mikhail S. Nechaev, Alexander V. Karchava

引用次数: 0

Low-Temperature Methane Abatement by Catalytic Ozonation Over Metal-Modified SSZ-13 Catalysts 金属改性SSZ-13催化剂催化臭氧氧化低温甲烷减排研究

IF 3.9 3区化学

ChemCatChem Pub Date : 2026-04-02 DOI: 10.1002/cctc.202501879

Yu Gui, Xudong Zhu, Yan Qi, Guangzhao Zhou

{"title":"Low-Temperature Methane Abatement by Catalytic Ozonation Over Metal-Modified SSZ-13 Catalysts","authors":"Yu Gui, Xudong Zhu, Yan Qi, Guangzhao Zhou","doi":"10.1002/cctc.202501879","DOIUrl":"10.1002/cctc.202501879","url":null,"abstract":"<div>\u0000 \u0000 The catalytic ozonation has been extensively studied for the abatement of volatile organic compounds (VOCs). The catalytic oxidation of low-concentration methane (CH4) suffers from the issue of low conversion efficiency at low temperatures (< 300°C), while the catalytic ozonation is expected to effectively address this issue by feature of the strong oxidizing property of ozone (O3). Therefore, the CH4 catalytic ozonation performance of five SSZ-13 zeolites loaded with Pd, Fe, Ni, Mn, and Cu (2.5 wt.%) and the various characterizations (such as XRD, BET, XPS, and H2-TPR) of catalysts was systematically investigated in this study. The results indicated that the Pd/SSZ-13 catalyst exhibited the best catalytic oxidation activity with a CH4 conversion rate of over 90% at 435°C. however, the Fe/SSZ-13 catalyst had the best low-temperature catalytic ozonation performance, achieving a methane conversion rate of 56% at 200°C. According to the characterization results, the O3-pretreated Fe/SSZ-13 catalyst possessed a higher surface adsorbed oxygen concentration, a higher Fe3+/Fe2+ ratio and a lower redox temperature compared to the fresh Fe/SSZ-13 catalyst. In-situ Diffused Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS) detected distinct the O3 and superoxide (O2−) adsorption peaks on the Fe/SSZ-13 surface. These results suggests that O3 adsorbs and dissociates into highly active oxygen species on the Fe/SSZ-13 catalyst surface, leading to a significant improvement in the low-temperature CH4 ozonation reaction.\u0000 </div>","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"18 7","pages":""},"PeriodicalIF":3.9,"publicationDate":"2026-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147668094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Europium-Modified Urea-Assisted TiO2 Nanoparticles as Multifunctional Materials for Natural Sunlight-Driven Photocatalysis, Antimicrobial Defense, and Anticancer Activity 铕修饰的尿素辅助TiO2纳米颗粒作为天然阳光驱动光催化、抗菌防御和抗癌活性的多功能材料

IF 3.9 3区化学

ChemCatChem Pub Date : 2026-04-02 DOI: 10.1002/cctc.70707

N. Lakshman Kumar, V. Pandiyan, T. Abisheik, Surya Chinnasamy, Annamalai Raja, Arkadeep Mukherjee, Abdullah K. Alanazi, Sivasankaran Ayyaru, Young-Ho Ahn, Krishnakumar Balu

{"title":"Europium-Modified Urea-Assisted TiO2 Nanoparticles as Multifunctional Materials for Natural Sunlight-Driven Photocatalysis, Antimicrobial Defense, and Anticancer Activity","authors":"N. Lakshman Kumar, V. Pandiyan, T. Abisheik, Surya Chinnasamy, Annamalai Raja, Arkadeep Mukherjee, Abdullah K. Alanazi, Sivasankaran Ayyaru, Young-Ho Ahn, Krishnakumar Balu","doi":"10.1002/cctc.70707","DOIUrl":"10.1002/cctc.70707","url":null,"abstract":"Europium-doped urea-assisted TiO2 (Eu:U-TiO2) nanoparticles were synthesized via a hydrothermal method with Eu doping levels of 1, 3, and 5 wt%, together with undoped U-TiO2 as a reference. Structural, morphological, surface, and optical properties were systematically characterized. Photocatalytic activity was assessed under natural sunlight via the degradation of methylene blue (MB), acid black 1 (AB 1), and reactive red 120 (RR 120). The 3 wt% Eu:U-TiO2 catalyst exhibited superior performance, achieving near-complete degradation of MB (10 ppm) and degradation efficiencies of 81.06% for AB 1 (20 ppm) and 63.28% for RR 120 (50 ppm) within 90 min under optimized conditions (pH 9, 20 mg catalyst per 100 mL). Kinetic analysis followed pseudo-first-order behavior, with the highest rate constant observed for the 3 wt% Eu-doped sample. In parallel, antibacterial activity against both Gram-positive and Gram-negative bacteria demonstrated a marked enhancement for Eu-doped samples compared to undoped U-TiO2. Radical scavenging experiments and GC–MS analysis identified O2•− and •OH radicals as the dominant reactive species responsible for dye mineralization. Overall, the optimized 3 wt% Eu:U-TiO2 functions as a multifunctional material, integrating efficient sunlight-driven photocatalysis with significant antibacterial activity, and shows strong potential for combined environmental remediation and biomedical applications.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"18 7","pages":""},"PeriodicalIF":3.9,"publicationDate":"2026-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/cctc.70707","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147668095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Harnessing Bi2S3 Nanostructure for Visible-Light-Driven Thioesterification and Amidation Reactions 利用Bi2S3纳米结构进行可见光驱动的硫代酯化和酰胺化反应

IF 3.9 3区化学

ChemCatChem Pub Date : 2026-04-02 DOI: 10.1002/cctc.202501721

Haider Ali, Bhagirath Mahto, Ashok Barhoi, Sahid Hussain

{"title":"Harnessing Bi2S3 Nanostructure for Visible-Light-Driven Thioesterification and Amidation Reactions","authors":"Haider Ali, Bhagirath Mahto, Ashok Barhoi, Sahid Hussain","doi":"10.1002/cctc.202501721","DOIUrl":"10.1002/cctc.202501721","url":null,"abstract":"<div>\u0000 \u0000 Thioester and amide are versatile functional groups commonly found in synthetic compounds, natural products, and functional materials, and they function as a crucial intermediate in organic transformations. The development of mild and efficient synthetic approaches provides a straightforward route to structurally diverse thioesters and amides, thereby enhancing the synthetic potential of carboxylic acid derivatives. This work presents a photochemical strategy for thioester and amide synthesis that employs thiobenzoic S-acids as one-electron reductants and sulfur-centred radical precursors, utilizing Bi2S3 nanostructures as the photocatalyst. The Bi2S3 nanostructures were prepared through a solvothermal method employing a choline chloride/thiourea deep eutectic solvent, which plays a multifaceted role as the solvent, soft template, and in situ sulfur source. These nanostructures were subsequently employed in visible light-induced thioesterification, enabling oxidative radical coupling of aromatic and aliphatic thioic acids with thiols under visible light. Mechanistic investigations, including TEMPO-based radical trapping experiments, confirm the involvement of free radical intermediates. Additional control experiments were conducted to elucidate the reaction mechanism and define the catalytic pathway. This protocol offers several advantages, including excellent catalytic efficiency, broad substrate applicability, high selectivity, good functional group tolerance, and catalyst recyclability, establishing it as a sustainable and practical one-pot route for thioesterification and amidation reactions.\u0000 </div>","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"18 7","pages":""},"PeriodicalIF":3.9,"publicationDate":"2026-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147668017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nonequilibrium Photothermal Reactions Under Pulsed Laser Excitation: Mechanisms, Dynamics, and Applications 脉冲激光激发下的非平衡光热反应：机理、动力学和应用

IF 3.9 3区化学

ChemCatChem Pub Date : 2026-04-02 DOI: 10.1002/cctc.202501870

Huieun Shim, Sy Khiem Nguyen, Hyeonji Lee, Jaehee Shin, Ilsun Yoon, Youngku Sohn

{"title":"Nonequilibrium Photothermal Reactions Under Pulsed Laser Excitation: Mechanisms, Dynamics, and Applications","authors":"Huieun Shim, Sy Khiem Nguyen, Hyeonji Lee, Jaehee Shin, Ilsun Yoon, Youngku Sohn","doi":"10.1002/cctc.202501870","DOIUrl":"10.1002/cctc.202501870","url":null,"abstract":"Pulsed laser excitation offers a compelling approach for accessing nonequilibrium conditions in catalysis by delivering energy to surfaces in a highly localized and time-controlled manner. In contrast to continuous-wave irradiation, pulsed lasers concentrate energy into extremely short bursts—ranging from femtoseconds to nanoseconds—which can induce steep thermal gradients, localized heating, and even partial decoupling between electronic and lattice subsystems. These effects often lead to surface restructuring, altered binding of intermediates, or activation of otherwise inaccessible pathways. Such transient photothermal environments have shown considerable promise in driving reactions like CO2 reduction, hydrogen evolution, and ammonia synthesis, where heat and charge localization strongly influence product selectivity. This review examines the growing field of pulsed photothermal catalysis, highlighting the fundamental mechanisms of laser–matter interactions, the distinction between thermal and nonthermal regimes, and how key laser parameters affect surface reactivity. We also survey selected reaction systems and discuss how recent developments in time-resolved spectroscopy and computational modeling are helping to unravel the underlying dynamics and inform the rational design of next-generation catalytic platforms.","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"18 7","pages":""},"PeriodicalIF":3.9,"publicationDate":"2026-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/cctc.202501870","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147668021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Defect Engineering Modified MOF-On-MOF Heterojunction Promotes Photocatalytic Hydrogen Peroxide Evolution 改性MOF-On-MOF异质结促进光催化过氧化氢演化

IF 3.9 3区化学

ChemCatChem Pub Date : 2026-04-02 DOI: 10.1002/cctc.70713

Yuhang Qi, Zhe Zhang, Xiao-bo Chen, Zhan Shi

{"title":"Defect Engineering Modified MOF-On-MOF Heterojunction Promotes Photocatalytic Hydrogen Peroxide Evolution","authors":"Yuhang Qi, Zhe Zhang, Xiao-bo Chen, Zhan Shi","doi":"10.1002/cctc.70713","DOIUrl":"10.1002/cctc.70713","url":null,"abstract":"<div>\u0000 \u0000 Hydrogen peroxide (H2O2) is an environment-friendly and effective oxidant and has been widely applied. However, medical demand is calling for more effective and convenient H2O2 preparation method. Photocatalysis can effectively produce H2O2 with simple process and easy access catalyst. This article presents a synergistic strategy which combines the advantages of defect engineering and heterojunction to achieve optimal performance. Acetic acid is applied as modulator to introduce linker defect and UiO-67 in-situ grows on surface to build type-II heterojunction. The defect level was quantified with 1H NMR (nuclear magnetic resonance) and transmission electron microscope convince successful combination. Synergistic effect of defect engineering and heterojunction significantly improves photocatalytic performance and achieves 3.92-fold higher photocatalytic H2O2 evolution rates. Photoelectrochemical characterization indicates defect engineering and type-II heterojunction bring about high photo-absorption, carrier separation, and photoelectron response. This article provides a perspective that synergistic effect of defect engineering and heterojunction can increase photocatalytic performance from overall process.\u0000 </div>","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"18 7","pages":""},"PeriodicalIF":3.9,"publicationDate":"2026-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147668139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficient Toluene Hydrogenation Over LDH-Derived Pt-Alloy Catalysts for LOHC-Based Hydrogen Storage ldh衍生pt合金催化剂在lohc基储氢中的高效甲苯加氢

IF 3.9 3区化学

ChemCatChem Pub Date : 2026-04-02 DOI: 10.1002/cctc.202501830

Yujie Bian, Shilong Zhang, Lei Wang, Xusheng Liu, Shijie Zhou, Xingyue Yang, Guanyi Zhang, Haisong Feng, Xin Zhang, Yusen Yang

{"title":"Efficient Toluene Hydrogenation Over LDH-Derived Pt-Alloy Catalysts for LOHC-Based Hydrogen Storage","authors":"Yujie Bian, Shilong Zhang, Lei Wang, Xusheng Liu, Shijie Zhou, Xingyue Yang, Guanyi Zhang, Haisong Feng, Xin Zhang, Yusen Yang","doi":"10.1002/cctc.202501830","DOIUrl":"10.1002/cctc.202501830","url":null,"abstract":"<div>\u0000 \u0000 Toluene (TOL) hydrogenation to methylcyclohexane (MCH) represents a promising liquid organic hydrogen carriers (LOHC) system due to its high hydrogen storage density and favorable techno-economic feasibility. In this study, three Pt-TM (TM = Co, Ni, and Cu) alloy catalysts were prepared via topotactic transformation method from layered double hydroxide (LDH) precursors. Structural characterization (XRD, XPS, in situ CO-DRIFT, etc.) shows that the alloy components are highly dispersed on the composite oxide support with electron transfer from the transition metals to Pt. In the TOL hydrogenation reaction, the PtCo catalyst exhibits excellent performance under a facile reaction condition (100°C, 2.0 MPa H2), with 99.75% conversion, 100% selectivity, and a mass-specific activity of 498.75 mmol·gcat−1·h−1, surpassing most reported noble metal-based catalysts. Mechanistic studies based on in situ IR spectroscopy and DFT calculations indicate that the introduction of transition metals effectively modulates the d-band center of Pt through electron transfer, which optimizes the adsorption behavior of substrate. On the surface of PtCo alloy catalyst, TOL shows the most favorable adsorption strength with the lowest reaction energy barrier of rate-determining step (the first hydrogenation step: 1.19 eV), accounting for its excellent hydrogenation activity. This study provides new insights into the design of high-performance TOL hydrogenation catalysts and demonstrates potential application in LOHC-based hydrogen storage.\u0000 </div>","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"18 7","pages":""},"PeriodicalIF":3.9,"publicationDate":"2026-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147668022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Balancing Active Au Cluster Formation and Surface Hydroxy Groups on Mg–Al Layered Double Hydroxides for Preferential CO Oxidation Under H2-Rich Conditions 富h2条件下平衡Mg-Al层状双氢氧化物上的活性金团簇形成和表面羟基

IF 3.9 3区化学

ChemCatChem Pub Date : 2026-03-31 DOI: 10.1002/cctc.70696

Akihiro Nakayama, Riku Suzuki, Norihito Sakaguchi, Tetsuo Honma, Tetsuya Shimada, Shinsuke Takagi, Toru Murayama, Tamao Ishida

{"title":"Balancing Active Au Cluster Formation and Surface Hydroxy Groups on Mg–Al Layered Double Hydroxides for Preferential CO Oxidation Under H2-Rich Conditions","authors":"Akihiro Nakayama, Riku Suzuki, Norihito Sakaguchi, Tetsuo Honma, Tetsuya Shimada, Shinsuke Takagi, Toru Murayama, Tamao Ishida","doi":"10.1002/cctc.70696","DOIUrl":"10.1002/cctc.70696","url":null,"abstract":"<div>\u0000 \u0000 Preferential oxidation of CO (CO-PROX) is essential for supplying CO-free hydrogen to polymer electrolyte fuel cells (PEFCs). We investigated the structure–performance relationship of Au catalysts supported on Mg─Al layered double hydroxides (LDHs) under H2-rich conditions. By combining catalytic measurements with in situ X-ray absorption fine structure (XAFS), we demonstrated that cationic Au species and atomically dispersed Au(0) are not responsible for appreciable CO-PROX activity. Instead, catalytic activity emerged after generating Au(0) clusters induced by thermal treatment under CO-PROX conditions. The temperature required for Au cluster formation depended on the LDH crystallite size. According to in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS), LDH nanoparticles (NPs) possessing abundant edge hydroxy groups stabilized atomically dispersed Au species more effectively than bulk LDH, but simultaneously promote H2O accumulation, blocking the active sites. In contrast, bulk LDH enabled the formation of active Au clusters at lower temperatures, while a moderate number of hydroxy groups allows regulation of the surface H2O quantity, thereby facilitating efficient removal of carbonate intermediates and accelerating CO oxidation. As a result, Au/bulk-LDH achieved high CO oxidation activity and selectivity. These results provide mechanistic insights and design principles for Au-based CO-PROX catalysts operable at PEFC-relevant temperatures.\u0000 </div>","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"18 7","pages":""},"PeriodicalIF":3.9,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147668935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Boosting BiVO4 Photoanode With Sulfur Doped Carbon Quantum Dots for Efficient Solar-Driven Water Oxidation 硫掺杂碳量子点增强BiVO4光阳极用于高效太阳能驱动水氧化

IF 3.9 3区化学

ChemCatChem Pub Date : 2026-03-31 DOI: 10.1002/cctc.202501812

Kun Li, Hongyan Li, Tengfei Wang, Yu Hou, Kai Song, Wen Yang, Huilin Hou, Blaž Likozar

{"title":"Boosting BiVO4 Photoanode With Sulfur Doped Carbon Quantum Dots for Efficient Solar-Driven Water Oxidation","authors":"Kun Li, Hongyan Li, Tengfei Wang, Yu Hou, Kai Song, Wen Yang, Huilin Hou, Blaž Likozar","doi":"10.1002/cctc.202501812","DOIUrl":"10.1002/cctc.202501812","url":null,"abstract":"<div>\u0000 \u0000 With the in-depth research on efficient hole-transport materials in the field of photoelectrochemical (PEC) water splitting, their rational integration with photoanodes is crucial for enhancing solar energy conversion efficiency. This study reports the loading of sulfur doped carbon quantum dots (S-CQD) as a hole transport layer onto a BiVO4 photoanode. The results indicates that the S-CQD effectively promotes hole extraction and transport from BiVO4, the optimized BiVO4/S-CQD composite photoanode achieves a photocurrent density of 1.66 mA cm−2 (1.23 VRHE), corresponding to 1.71 times that of pristine BiVO4 photoanode. Furthermore, the surface-deposited FeOOH accelerates water oxidation kinetics, the optimized BiVO4/S-CQD/FeOOH composite photoanode achieves a photocurrent density of 2.88 mA cm−2 (1.23 VRHE), which is 2.96 times that of pristine BiVO4. This work provides an effective quantum dot-based strategy for designing high-performance BiVO4 photoanodes.\u0000 </div>","PeriodicalId":141,"journal":{"name":"ChemCatChem","volume":"18 7","pages":""},"PeriodicalIF":3.9,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147668932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0