Applied Catalysis B: Environmental最新文献_第3页

Phosphorus-substituted atomically dispersed Rh-N3P1 sites for efficient promotion in CO2 hydrogenation towards ethanol production 磷取代原子分散的 Rh-N3P1 位点可有效促进二氧化碳加氢制取乙醇

IF 22.1 1区化学

Applied Catalysis B: Environmental Pub Date : 2024-01-12 DOI: 10.1016/j.apcatb.2024.123730

Ke Zheng, Yufeng Li, Bing Liu, Jie Chen, Yuebing Xu, Zaijun Li, Xiaohao Liu

{"title":"Phosphorus-substituted atomically dispersed Rh-N3P1 sites for efficient promotion in CO2 hydrogenation towards ethanol production","authors":"Ke Zheng, Yufeng Li, Bing Liu, Jie Chen, Yuebing Xu, Zaijun Li, Xiaohao Liu","doi":"10.1016/j.apcatb.2024.123730","DOIUrl":"10.1016/j.apcatb.2024.123730","url":null,"abstract":"<div>Ethanol synthesis through CO2 hydrogenation has shown great promise in contributing to carbon neutrality. Herein, we for the first time present the phosphorus-substitution of atomically dispersed Rh-N4 sites for the title reaction. The as-formed Rh-N3P1 sites enable the reaction product notably switching from nearly total methanol (91.3%) towards major ethanol (81.8%) with a high TOF of 420.7 h−1. This outstanding promotion in both ethanol formation and CO2 conversion (69% higher) could be assigned to the donation of electron from P atom effectively weakening C-O bond in CH3OH* , facilitating its cleavage into CH3 * , and enabling the coupling between CO* and CH3 * . The presence of Rh-P site pair assists C-O bond activation with a longer bond length owing to a strong affinity of P atom to O atom in CH3OH* . This research underscores the importance of tuning the coordination and electronic environment of active metal sites for site pair synergistic catalysis.</div>","PeriodicalId":244,"journal":{"name":"Applied Catalysis B: Environmental","volume":null,"pages":null},"PeriodicalIF":22.1,"publicationDate":"2024-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139460323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Dynamic trap of Ni at elevated temperature for yielding high-efficiency methane dry reforming catalyst 高温动态捕集 Ni 以产生高效甲烷干重整催化剂

IF 22.1 1区化学

Applied Catalysis B: Environmental Pub Date : 2024-01-12 DOI: 10.1016/j.apcatb.2024.123728

Dedong He , Shaojie Wu , Xiaohua Cao , Dingkai Chen , Lei Zhang , Yu Zhang , Yongming Luo

{"title":"Dynamic trap of Ni at elevated temperature for yielding high-efficiency methane dry reforming catalyst","authors":"Dedong He , Shaojie Wu , Xiaohua Cao , Dingkai Chen , Lei Zhang , Yu Zhang , Yongming Luo","doi":"10.1016/j.apcatb.2024.123728","DOIUrl":"10.1016/j.apcatb.2024.123728","url":null,"abstract":"<div>Highly dispersed and stable metal catalysts with small nanoparticles have received extensive attention in elevated-temperature thermocatalytic process. However, the available strategies to stabilize metal sites, by constructing defective structures on catalyst supports and developing controllable preparation steps at room temperature, show limited effect, because these active metal sites can be mobile and sintering at elevated temperature. Herein, dealuminated Beta zeolite with abundant surface defects of silanol nests is applied as support, then dynamic trap strategy and subsequent reduction process at elevated temperature is devoted to transfer Ni-based precursors into the silanol nests, thus obtaining small nanoparticles Ni catalysts that are suitable for high-temperature methane dry reforming (DRM). Some in-situ characterization processes and the ingenious designed experiments are performed to identify the dynamic trapping process. The rational fabricated catalysts exhibit high catalytic reactivity for DRM reaction in long-term operation.</div>","PeriodicalId":244,"journal":{"name":"Applied Catalysis B: Environmental","volume":null,"pages":null},"PeriodicalIF":22.1,"publicationDate":"2024-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139460210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Sustainable microwave-driven CO2 gasification of plastic waste for high-yield H2 and CO production 可持续的微波驱动二氧化碳气化塑料废弃物，生产高产的 H2 和 CO

IF 22.1 1区化学

Applied Catalysis B: Environmental Pub Date : 2024-01-11 DOI: 10.1016/j.apcatb.2024.123718

Peng Zhang, Cai Liang, Mudi Wu, Yongjie Li, Xiaoping Chen, Daoyin Liu, Jiliang Ma

{"title":"Sustainable microwave-driven CO2 gasification of plastic waste for high-yield H2 and CO production","authors":"Peng Zhang, Cai Liang, Mudi Wu, Yongjie Li, Xiaoping Chen, Daoyin Liu, Jiliang Ma","doi":"10.1016/j.apcatb.2024.123718","DOIUrl":"10.1016/j.apcatb.2024.123718","url":null,"abstract":"<div>The efficiency and sustainability for the recycling of plastic wastes into hydrogen was investigated. An integrated microwave-driven valorization of plastic wastes and CO2 for H2 and CO production was proposed. Specifically, plastic wastes were decomposed into H2 and solid carbons, followed by carbon elimination via CO2 gasification under microwave irradiation. Through the high-throughput screen of catalysts as well as the optimization of key parameters, over 96% hydrogen was converted into H2 with a yield of 480 mmol∙g−1Hplastic while the carbon conversion and CO2 conversion reached up to 70% and 53%. The five-cycle successive test displayed extraordinarily high and stable catalytic activity due to the facile elimination of carbon deposition. The application for real-world plastic wastes further demonstrated the efficient microwave-driven CO2 gasification of plastic wastes into H2 and CO production as a feasible and sustainable technology toward the waste-to-energy circular economy.</div>","PeriodicalId":244,"journal":{"name":"Applied Catalysis B: Environmental","volume":null,"pages":null},"PeriodicalIF":22.1,"publicationDate":"2024-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139421096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Ammonia synthesis over cesium-promoted mesoporous-carbon-supported ruthenium catalysts: Impact of graphitization degree of the carbon support 在铯促进的介孔碳支撑钌催化剂上合成氨：碳支撑的石墨化程度的影响

IF 22.1 1区化学

Applied Catalysis B: Environmental Pub Date : 2024-01-11 DOI: 10.1016/j.apcatb.2024.123725

Shih-Yuan Chen , Li-Yu Wang , Kai-Chun Chen , Cheng-Hsi Yeh , Wei-Chih Hsiao , Hsin-Yu Chen , Masayasu Nishi , Martin Keller , Chih-Li Chang , Chien-Neng Liao , Takehisa Mochizuki , Hsin-Yi Tiffany Chen , Ho-Hsiu Chou , Chia-Min Yang

{"title":"Ammonia synthesis over cesium-promoted mesoporous-carbon-supported ruthenium catalysts: Impact of graphitization degree of the carbon support","authors":"Shih-Yuan Chen , Li-Yu Wang , Kai-Chun Chen , Cheng-Hsi Yeh , Wei-Chih Hsiao , Hsin-Yu Chen , Masayasu Nishi , Martin Keller , Chih-Li Chang , Chien-Neng Liao , Takehisa Mochizuki , Hsin-Yi Tiffany Chen , Ho-Hsiu Chou , Chia-Min Yang","doi":"10.1016/j.apcatb.2024.123725","DOIUrl":"10.1016/j.apcatb.2024.123725","url":null,"abstract":"<div>Carbon-supported ruthenium catalysts facilitate electrically-assisted Haber–Bosch ammonia synthesis. However, the relationship between carbon supports and catalytic performance remains ambiguous. We developed ordered mesoporous carbon plates (MCPs) with varying graphitization degrees as Cs-promoted Ru catalyst supports, examining correlations between ammonia synthesis rate and key structural parameters, included graphitization degree, Ru nanoparticle size, and Cs/Ru ratio. High-graphitization-degree carbon supports resisted methanation and facilitated formation of reductive activation enabled dynamic Cs0 species as electronic promotor, induced by spillover hydrogen from the Ru surface to CsOH. Density functional theory calculations further revealed that CsOH alleviated hydrogen poisoning. Notably, the catalyst supported on MCP-1100—which exhibited the highest graphitization degree among the supports and superior stability—with 10 wt% 2.3-nm-sized Ru nanoparticles and Cs/Ru = 2.5 achieved high ambient-pressure ammonia synthesis rates (7.9–43 mmolNH3·g−1·h−1) below 410 °C. Furthermore, it functioned under intermittent operating conditions, potentially integrating renewable-electricity-based electrolytic hydrogen production.</div>","PeriodicalId":244,"journal":{"name":"Applied Catalysis B: Environmental","volume":null,"pages":null},"PeriodicalIF":22.1,"publicationDate":"2024-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139460400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Heterointerface and crystallinity engineering of Ru/RuS2 dual co-catalysts for enhanced photocatalytic hydrogen evolution 用于增强光催化氢气进化的 Ru/RuS2 双元共催化剂的异界面和结晶度工程设计

IF 22.1 1区化学

Applied Catalysis B: Environmental Pub Date : 2024-01-11 DOI: 10.1016/j.apcatb.2024.123722

Xinyu Wang , Junhua You , Jiali Ren , Yanjun Xue , Jian Tian , Hangzhou Zhang

{"title":"Heterointerface and crystallinity engineering of Ru/RuS2 dual co-catalysts for enhanced photocatalytic hydrogen evolution","authors":"Xinyu Wang , Junhua You , Jiali Ren , Yanjun Xue , Jian Tian , Hangzhou Zhang","doi":"10.1016/j.apcatb.2024.123722","DOIUrl":"https://doi.org/10.1016/j.apcatb.2024.123722","url":null,"abstract":"<div>In this paper, the Ru/RuS2 nanoparticles as dual co-catalysts were self-assembled on the surface of g-C3N4 nanotubes (Ru/RuS2/g-C3N4 NTs) for photocatalytic H2 production. The Ru/RuS2/g-C3N4 NTs showed greatly enhanced photocatalytic H2 production activity (1409 μmol·g−1·h−1), 1.16 times of RuS2/g-C3N4 NTs (1212 μmol·h−1·g−1), 10.51 times of Ru/g-C3N4 NTs (134 μmol·g−1·h−1), and 82.88 times of the pure g-C3N4 NTs (17 μmol·g−1·h−1). Besides, the apparent quantum yield value (AQE) of Ru/RuS2/g-C3N4 NTs is 3.92% at 370 nm. Ru/RuS2 as dual co-catalysts are self-assembled on the surface of g-C3N4 NTs and show strong electronic synergistic interaction between the interfaces, reduce ΔGH* of RuS2 and desorption energy of Ru, and promote the selectivity and activity of HER kinetically and thermodynamically respectively, which exhibits higher photogenerated carrier concentration and lower charge migration resistance than RuS2 and Ru, showing the synergistic effect to facilitate the generation and migration of carriers and provides active sites for photocatalysis.</div>","PeriodicalId":244,"journal":{"name":"Applied Catalysis B: Environmental","volume":null,"pages":null},"PeriodicalIF":22.1,"publicationDate":"2024-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139436228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Carbon dots bridged Zn0.5Cd0.5S with interfacial amide bond facilitating electron transfer for efficient photocatalytic hydrogen peroxide production 碳点桥接 Zn0.5Cd0.5S，其界面酰胺键可促进电子转移，从而高效光催化生产过氧化氢

IF 22.1 1区化学

Applied Catalysis B: Environmental Pub Date : 2024-01-10 DOI: 10.1016/j.apcatb.2024.123721

Ting Tang , Jiwu Zhao , Yongli Shen , Fan Yang , Shuang Yao , Changhua An

{"title":"Carbon dots bridged Zn0.5Cd0.5S with interfacial amide bond facilitating electron transfer for efficient photocatalytic hydrogen peroxide production","authors":"Ting Tang , Jiwu Zhao , Yongli Shen , Fan Yang , Shuang Yao , Changhua An","doi":"10.1016/j.apcatb.2024.123721","DOIUrl":"10.1016/j.apcatb.2024.123721","url":null,"abstract":"<div>Photocatalytic H2O2 production has gained significant attention as an environmentally friendly approach. The key is to explore efficient photocatalysts with sufficient active sites and excellent electron transfer capacity. Herein, we propose a novel approach by incorporating carbon dots (CDs) on ethylenediamine capped Zn0.5Cd0.5S, which was bridged with an interfacial amide bond. Smooth transfer of photoinduced electrons from Zn0.5Cd0.5S to carbon dots via a high-speed electron channel is afforded by interfacial amide bond. A remarkable H2O2 yield with a rate of 252 μmol/h and an apparent quantum yield (AQY) of 31 % at 400 nm is achieved. Photoelectrochemical analysis and density function theory (DFT) calculation reveal CDs with abundant oxygenous functional groups as active sites, boosting activity and selectivity. This interfacial engineering strategy with the acceleration of electrons transfer and enhanced 2e- selectivity can be applied to advanced photocatalytic systems for the achievement of valuable organics, environmental purification and new energy carriers.</div>","PeriodicalId":244,"journal":{"name":"Applied Catalysis B: Environmental","volume":null,"pages":null},"PeriodicalIF":22.1,"publicationDate":"2024-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139410191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

A switchable hydrogenation chemoselectivity of biomass platform compounds based on solvent regulation 基于溶剂调节的生物质平台化合物的可切换氢化化学选择性

IF 22.1 1区化学

Applied Catalysis B: Environmental Pub Date : 2024-01-10 DOI: 10.1016/j.apcatb.2024.123719

Yuanjing Zhang , Si Wang , Yusen Yang , Lei Wang , Enze Xu , Quandong Hou , Shiquan Zhao , Tianyong Liu , Song Hong , Lirong Zheng , Feng Li , Xin Zhang , Min Wei

{"title":"A switchable hydrogenation chemoselectivity of biomass platform compounds based on solvent regulation","authors":"Yuanjing Zhang , Si Wang , Yusen Yang , Lei Wang , Enze Xu , Quandong Hou , Shiquan Zhao , Tianyong Liu , Song Hong , Lirong Zheng , Feng Li , Xin Zhang , Min Wei","doi":"10.1016/j.apcatb.2024.123719","DOIUrl":"10.1016/j.apcatb.2024.123719","url":null,"abstract":"<div>Selective catalytic conversion of biomass-derived compounds to fuels and fine chemicals serves as a renewable energy pathway for the partial substitution of fossil resources, in which reaction pathway and selectivity control are key issues. Herein, we report a fully exposed Pt clusters immobilized on CoAl mixed metal oxides catalyst (denoted as Ptn/CoAl-MMOs), which exhibits prominent catalytic performance towards liquid phase hydrogenation reaction of furfural (FAL). Noteworthily, the hydrogenation chemoselectivity can be switched among four products via using four different solvents: tetrahydrofurfuryl alcohol (THFA; yield: 91.4%), furfuryl alcohol (FA; yield: 97.7%), 2-methylfuran (2-MF; yield: 92.1%) and furan (FU; yield: 90.8%) are obtained in ethanol, dioxane, isopropanol and n-hexane solvent, respectively. Experimental studies (in situ FT-IR and TPSR-Mass) combined with theoretical calculations (DFT) reveal that solvent molecules exert an essential influence on the adsorption configuration of FAL via changing the solvent-catalyst and/or substrate-catalyst interaction, which ultimately determines the hydrogenation pathway, key intermediate and final product. This work demonstrates a facile solvent-dependent product-switching strategy within one catalytic system, which opens up potential opportunities for tailoring hydrogenation selectivity in liquid-solid catalytic reactions towards biomass upgrading.</div>","PeriodicalId":244,"journal":{"name":"Applied Catalysis B: Environmental","volume":null,"pages":null},"PeriodicalIF":22.1,"publicationDate":"2024-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139410200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Controlling oxide promoter coverage and microstructure on metals of inverse catalysts: Application to liquid phase tetrahydrofurfuryl alcohol conversion to 1,5-pentanediol 控制反相催化剂金属上的氧化促进剂覆盖率和微观结构：液相四氢糠醇转化为 1,5-戊二醇的应用

IF 22.1 1区化学

Applied Catalysis B: Environmental Pub Date : 2024-01-10 DOI: 10.1016/j.apcatb.2024.123724

Jiahua Zhou , Jiayi Fu , Piaoping Yang , Kewei Yu , Stavros Caratzoulas , Weiqing Zheng , Dionisios G. Vlachos

{"title":"Controlling oxide promoter coverage and microstructure on metals of inverse catalysts: Application to liquid phase tetrahydrofurfuryl alcohol conversion to 1,5-pentanediol","authors":"Jiahua Zhou , Jiayi Fu , Piaoping Yang , Kewei Yu , Stavros Caratzoulas , Weiqing Zheng , Dionisios G. Vlachos","doi":"10.1016/j.apcatb.2024.123724","DOIUrl":"10.1016/j.apcatb.2024.123724","url":null,"abstract":"<div>Metal M1/metal oxide M2Ox (M1M2Ox) inverse catalysts, where the oxide layer rests atop metal, have gained attention for their distinct catalytic performance. They are intensively studied in biomass upgrading, e.g., the hydrogenolysis of tetrahydrofurfuryl alcohol to produce 1,5-pentanediol. Pt and MOx (M = W, Mo, Re, Nb) exhibit remarkable synergism in activity and selectivity, but the active sites remain poorly understood. Here, we examine the influence of oxide loading on PtMOx inverse catalysts and introduce a high-pressure wash treatment to leach the excess oxide from carbon and optimize their structure. The findings reveal a saturation sub-monolayer MOx coverage with 2D atomic structure on Pt that is crucial for performance; excessive loading leads to nanocrystalline of lower activity, and low loading exposes unselective metal sites. Wash treatment selectively removes MOx from carbon, enhances their dispersion on Pt, and improves, in most cases, the performance. Tuning the inverse structure advances structure-reactivity understanding.</div>","PeriodicalId":244,"journal":{"name":"Applied Catalysis B: Environmental","volume":null,"pages":null},"PeriodicalIF":22.1,"publicationDate":"2024-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139409982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Enhancing Cu-EDTA decomplexation in a discharge plasma system coupled with nanospace confined iron oxide: Insights into electron transfer and high-valent iron species 增强放电等离子体系统与纳米空间封闭氧化铁的铜-EDTA解络合：对电子转移和高价铁物种的见解

IF 22.1 1区化学

Applied Catalysis B: Environmental Pub Date : 2024-01-10 DOI: 10.1016/j.apcatb.2024.123717

Yue Liu , Yueyun Yang , Anjie Li , Jian Zhou , Ying Zhang , Tiecheng Wang , Hanzhong Jia , Lingyan Zhu

{"title":"Enhancing Cu-EDTA decomplexation in a discharge plasma system coupled with nanospace confined iron oxide: Insights into electron transfer and high-valent iron species","authors":"Yue Liu , Yueyun Yang , Anjie Li , Jian Zhou , Ying Zhang , Tiecheng Wang , Hanzhong Jia , Lingyan Zhu","doi":"10.1016/j.apcatb.2024.123717","DOIUrl":"10.1016/j.apcatb.2024.123717","url":null,"abstract":"<div>Decomplexation of heavy metal-organic complexes dominated by reactive oxygen species (ROS) oxidation had attracted extensive attention. Nanospace confinement is a novel strategy to enhance pollutant removal due to its regulation on ROS transformation and local accelerated dynamics. Herein, nano-confined Fe2O3 catalyst supported by carbon nanotubes (Fe2O3-in-CNTs) was synthesized, and it displayed obvious synergistic effects on decomplexation of Cu-EDTA complex in a non-thermal plasma (NTP) process. Cu-EDTA decomplexation efficiency reached 98.8% within 20min in the NTP/Fe2O3-in-CNTs system, and the corresponding kinetic constant was 4.5 and 2.5 times as that in single NTP and unconfined systems, respectively. Based on experimental and theoretical results, nanospace confinement induced electron localization around Fe and C atoms and rearrangement of orbital electrons, favoring strongly oxidative FeⅣ formation and catalytic decomposition of H2O2 and O3. Nanospace confinement made Cu-EDTA decomplexation process transform from radical pathway to non-radical pathway. Cu-EDTA decomplexation pathways in the NTP/Fe2O3-in-CNTs were proposed.</div>","PeriodicalId":244,"journal":{"name":"Applied Catalysis B: Environmental","volume":null,"pages":null},"PeriodicalIF":22.1,"publicationDate":"2024-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139409845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Atomic interfacial charge and energy transfer paths at MoS2/Pd bonded defect-rich BiOCl interfaces for efficient photocatalysis 用于高效光催化的 MoS2/Pd 键合富含缺陷的 BiOCl 表面的原子间电荷和能量转移路径

IF 22.1 1区化学

Applied Catalysis B: Environmental Pub Date : 2024-01-10 DOI: 10.1016/j.apcatb.2024.123720

Bingjie Sun , Cheng Huang , Chenyu Yang , Da Ke , Ye Liu , Qi Lu , Xiufan Liu , Xuyang Xiong , Yuanzhen Chen , Qingqing Jiang , Juncheng Hu , Tengfei Zhou

{"title":"Atomic interfacial charge and energy transfer paths at MoS2/Pd bonded defect-rich BiOCl interfaces for efficient photocatalysis","authors":"Bingjie Sun , Cheng Huang , Chenyu Yang , Da Ke , Ye Liu , Qi Lu , Xiufan Liu , Xuyang Xiong , Yuanzhen Chen , Qingqing Jiang , Juncheng Hu , Tengfei Zhou","doi":"10.1016/j.apcatb.2024.123720","DOIUrl":"10.1016/j.apcatb.2024.123720","url":null,"abstract":"<div>Construction of heterogeneous transmission interfaces that spatially separate Coulomb-bound electron-hole pairs in semiconductors allows exceptional control over optoelectronic properties, thereby enhancing the efficiency of solar energy conversion. In this study, we propose an effective photocatalyst for full water splitting named MS/BOC-x/Pd, comprising atomic layer of MoS2 bonded to defect-rich BiOCl, and a non-plasmonic Pd oxidation co-catalyst is exclusively assembled on the sides to form a strong electronic coupling and maximize the trapping of holes. The presence of the Mo-S-Bi motif promotes rapid charge migration, resulting in impressive rates of H2 and O2 formation (165 and 9.17 μmol g−1 h−1, respectively), without the requirement of sacrificial agents or sensitizers. Through experimental and theoretical investigations, we discovered that the occupation of sulfur atoms in oxygen vacancies extends the overlap of surface charges, thereby facilitating the separation of inner/interfacial electron-hole pairs. The Mo-S-Bi bond provides directional guidance for charge transfer to the surface redox sites. These findings provide valuable insights for the future design of highly efficient photocatalysts for solar energy conversions.</div>","PeriodicalId":244,"journal":{"name":"Applied Catalysis B: Environmental","volume":null,"pages":null},"PeriodicalIF":22.1,"publicationDate":"2024-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139420896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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