Catalysis Science & Technology最新文献_第3页

Correction: A two-dimensional MXene-supported CuRu catalyst for efficient electrochemical nitrate reduction to ammonia 更正：用于高效电化学硝酸盐还原为氨的二维MXene负载CuRu催化剂

IF 5 3区化学

Catalysis Science & Technology Pub Date : 2023-09-20 DOI: 10.1039/D3CY90075D

Fang Zhao, Guangxin Li, Qianqian Hua, Jianghui Cao, Jiliang Song, Liguo Gao, Tingli Ma, Xuefeng Ren and Anmin Liu

引用次数: 0

Removal of hazardous diethyl phthalate released from plastics using mesoporous graphitic carbon nitride boosted with ferrocene (Fc/g-C3N4) under visible light† 二茂铁增强介孔石墨氮化碳(Fc/g-C3N4)在可见光下去除塑料中释放的有害邻苯二甲酸二乙酯

IF 5 3区化学

Catalysis Science & Technology Pub Date : 2023-09-19 DOI: 10.1039/D3CY00731F

Mohammad Bashiri, Mona Hosseini-Sarvari, Yanlong Gu and Dengyue Zheng

{"title":"Removal of hazardous diethyl phthalate released from plastics using mesoporous graphitic carbon nitride boosted with ferrocene (Fc/g-C3N4) under visible light†","authors":"Mohammad Bashiri, Mona Hosseini-Sarvari, Yanlong Gu and Dengyue Zheng","doi":"10.1039/D3CY00731F","DOIUrl":"https://doi.org/10.1039/D3CY00731F","url":null,"abstract":"The modification of the structure and surface of graphitic carbon nitride (g-C3N4) with transition organo-metallic compounds for photocatalytic applications has been expanded in recent years. In this study, ferrocene was selected to attach to the graphitic carbon nitride (Fc/g-C3N4) via imino bonds between ferrocene carboxaldehyde and the amino group of g-C3N4 to increase the photocatalytic efficiency for the decomposition of the co-polymer diethylphthalate (DEP). Ferrocene was grafted onto g-C3N4 and identified with FT-IR spectroscopy, Raman spectroscopy, XRF, XRD, XPS, UV-visible DRS, photoluminescence (PL) spectroscopy, SEM, HR-TEM, EDX, BET, photocurrent, EIS, and cyclic voltammetry. Photodegradation was performed in an aqueous medium with Fc/g-C3N4 in the presence of hydrogen peroxide (H2O2). The decomposition of DEP was carried out under electromagnetic radiation with different wavelengths and pH. The best degradation was obtained in the presence of blue light and acidic conditions. The active species that plays a key role in this degradation is (˙OH), which is formed during the photocatalytic performance of Fc/g-C3N4. The degradation process was completely followed by HPLC. The feasible mechanism for the photodegradation of DEP was also proposed and discussed in detail.","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":" 21","pages":" 6297-6312"},"PeriodicalIF":5.0,"publicationDate":"2023-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71903772","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

Understanding structure–activity relationships: iron(ii) complexes of “Legacy Guanidines” as catalysts for the synthesis of polylactide† 理解结构-活性关系：“传统胍”的铁（ii）络合物作为合成聚乳酸的催化剂†

IF 5 3区化学

Catalysis Science & Technology Pub Date : 2023-09-18 DOI: 10.1039/D3CY01117H

Christian Conrads, Lisa Burkart, Sven Soerensen, Sandra Noichl, Yasemin Kara, Joshua Heck, Alexander Hoffmann and Sonja Herres-Pawlis

{"title":"Understanding structure–activity relationships: iron(ii) complexes of “Legacy Guanidines” as catalysts for the synthesis of polylactide†","authors":"Christian Conrads, Lisa Burkart, Sven Soerensen, Sandra Noichl, Yasemin Kara, Joshua Heck, Alexander Hoffmann and Sonja Herres-Pawlis","doi":"10.1039/D3CY01117H","DOIUrl":"https://doi.org/10.1039/D3CY01117H","url":null,"abstract":"In this work, eight novel iron(II) chloride complexes of well-known bisguanidine and N,N hybrid guanidine ligands are presented. Their activity in the synthesis of polylactide via a ring-opening polymerization was investigated under industrially relevant conditions with low catalyst loadings in the lactide melt. The conversion was monitored by in situ Raman spectroscopy to evaluate the reaction kinetics. The catalysts were investigated regarding their polymerization activity as well as their ability to maintain their polymerization activity over time. The most promising catalyst [Fe(TMGepy)Cl2] (C6) polymerizes L-lactide at monomer-to-initiator ratios of 1000 : 1 and higher with a rate constant of propagation similar to the until now most active robust iron catalysts. Experiments on the influence of a co-initiator were carried out. Additionally, the experimental observations were further underlined with theoretical calculations explaining the stability and activity of the catalysts. Iron guanidines with rather simple ligands demonstrate a great potential for large-scale application in the industrial process. Finally, initial tests on the application of the compounds in the methanolysis of polylactide were conducted.","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":" 20","pages":" 6006-6021"},"PeriodicalIF":5.0,"publicationDate":"2023-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41228594","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

Confinement effects over Ni-based catalysts for methane dry reforming ni基甲烷干重整催化剂的约束效应

IF 5 3区化学

Catalysis Science & Technology Pub Date : 2023-09-18 DOI: 10.1039/D3CY00845B

Chongchong Chen, Jiaojiao Wei, Yao Lu, Melis Seher Duyar, Yuanyuan Huang, Ling Lin and Runping Ye

{"title":"Confinement effects over Ni-based catalysts for methane dry reforming","authors":"Chongchong Chen, Jiaojiao Wei, Yao Lu, Melis Seher Duyar, Yuanyuan Huang, Ling Lin and Runping Ye","doi":"10.1039/D3CY00845B","DOIUrl":"https://doi.org/10.1039/D3CY00845B","url":null,"abstract":"Methane dry reforming converts two greenhouse gases to produce versatile syngas that serves as a feedstock for chemical production while also contributing to closing the anthropogenic carbon cycle. Due to the excellent catalytic performance of Ni-based catalysts, they are widely used in methane dry reforming reactions. However, Ni-based catalysts suffer from a tendency to sinter and coke under high reaction temperatures, which severely restricts their industrial applications. This review presents the application of the confinement effect in improving the resistance to sintering and coking of Ni-based catalysts for methane dry reforming. Firstly, the mechanisms of catalyst deactivation, i.e., the origin of coking and sintering, are reviewed. Secondly, the catalyst synthesis strategies of surface spatial confinement, core–shell structure confinement, and sandwich structure confinement are presented. The influence of different kinds of confinement effects on improving the performance of Ni-based catalysts against sintering and coking are analyzed and summarized, elucidating the mechanisms and structure–performance relationships. This work provides a tutorial for designing Ni-based catalysts with anti-sintering/coking properties.","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":" 21","pages":" 6089-6101"},"PeriodicalIF":5.0,"publicationDate":"2023-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71903844","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

Aromatic alkyne-protected Au28 nanoclusters for electrocatalytic ethanol oxidation† 用于电催化乙醇氧化的芳香炔烃保护的Au28纳米簇†

IF 5 3区化学

Catalysis Science & Technology Pub Date : 2023-09-15 DOI: 10.1039/D3CY00889D

Shisi Tang, Haoqi Liu, Tongxin Song, Xiao Cai, Xu Liu, Weiping Ding and Yan Zhu

引用次数: 0

Pd/Au bimetallic nanoparticle-anchored BiVO4/TiO2 nanotube arrays toward efficient photoelectrocatalytic Suzuki–Miyaura reactions† Pd/Au双金属纳米颗粒锚定BiVO4/TiO2纳米管阵列实现高效光电催化Suzuki–Miyaura反应†

IF 5 3区化学

Catalysis Science & Technology Pub Date : 2023-09-15 DOI: 10.1039/D3CY00990D

Wenjun Yan, Na Li, Zhiyu Yan, Yu Niu, Yuan Deng and Zhongde Wang

引用次数: 0

Cu nanoparticles confined in siliceous MFI zeolite for methanol steam reforming† 限制在用于甲醇蒸汽重整的含硅MFI沸石中的Cu纳米颗粒†

IF 5 3区化学

Catalysis Science & Technology Pub Date : 2023-09-14 DOI: 10.1039/D3CY01165H

Yang Hong, Yijun Zheng, Nana Yan, Xiaona Liu, Peng Guo and Zhongmin Liu

引用次数: 0

Computational thermostability engineering of a nitrile hydratase using synergetic energy and correlated configuration for redesigning enzymes (SECURE) strategy† 腈水合酶的计算热稳定性工程，使用协同能量和相关配置重新设计酶（SECURE）策略†

IF 5 3区化学

Catalysis Science & Technology Pub Date : 2023-09-14 DOI: 10.1039/D3CY01102J

Jinling Xu, Haisheng Zhou, Jiaqi Xu, Ziyuan Wang, Zhonglang Yu, Zhe Wang, Hongyu Zhang, Haoran Yu, Jianping Wu and Lirong Yang

{"title":"Computational thermostability engineering of a nitrile hydratase using synergetic energy and correlated configuration for redesigning enzymes (SECURE) strategy†","authors":"Jinling Xu, Haisheng Zhou, Jiaqi Xu, Ziyuan Wang, Zhonglang Yu, Zhe Wang, Hongyu Zhang, Haoran Yu, Jianping Wu and Lirong Yang","doi":"10.1039/D3CY01102J","DOIUrl":"https://doi.org/10.1039/D3CY01102J","url":null,"abstract":"Nitrile hydratase (NHase), an excellent biocatalyst, has been widely used for the production of amides, but the exothermic hydration reaction leads to its rapid inactivation, hindering its industrial applications, which requires the thermostability of NHase to be enhanced. In this study, employing NHase from Bordetella petrii DSM 12804 (NHAB) as the object, a computational strategy using synergetic energy and correlated configuration for redesigning enzymes (SECURE) was proposed to prune the reasonable mutant library and assemble effective single mutations, thus maximizing the thermostability of NHAB. Among the mutants, the best variant, A6M/B4M, combined six mutations in its α-subunit (S30T, A71D, A74D, A78R, S81T, and A133P) and four mutations in its β-subunit (L25F, G27Y, N59P, and A173N), showing an increase in Tm by 13.2 °C, an 866.0-fold prolonged half-life at 50 °C, and an 11.2% increase in activity. Then, the catalytic efficiency dramatically increased to 249.5 g L−1 acrylamide in 5 batches compared with that of 166.5 g L−1 by the wild type in 3 batches. Finally, the synergistic effect on the mutant represented by an overall change in structure and newly formed intermolecular interactions through dynamic simulations accounted for the enhanced thermostability. Thus, SECURE was demonstrated to be practical for the redesign of multimeric NHase, which also provided guidance for computational thermostability engineering of other industrial biocatalysts.","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":" 20","pages":" 5880-5891"},"PeriodicalIF":5.0,"publicationDate":"2023-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41228562","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

Cu–Fe bimetallic MOF enhances the selectivity of photocatalytic CO2 reduction toward CO production† Cu–Fe双金属MOF提高了光催化CO2还原对CO生产的选择性†

IF 5 3区化学

Catalysis Science & Technology Pub Date : 2023-09-14 DOI: 10.1039/D3CY00842H

Huayong Yang, Min Zhang, Zhongjie Guan and Jianjun Yang

{"title":"Cu–Fe bimetallic MOF enhances the selectivity of photocatalytic CO2 reduction toward CO production†","authors":"Huayong Yang, Min Zhang, Zhongjie Guan and Jianjun Yang","doi":"10.1039/D3CY00842H","DOIUrl":"https://doi.org/10.1039/D3CY00842H","url":null,"abstract":"The rational design of multi-ligand bimetallic MOFs with a monomolecular structure is a very effective way to study product selectivity of the photocatalytic CO2 reduction reaction (CO2RR) using MOFs-based catalysts. Herein, a new Cu–Fe bimetallic MOF material, namely Cu-MOF–Fcdc-20% (Fcdc = 1,1′-ferrocenedicarboxylic acid), was constructed by a multi-ligand strategy to improve the selectivity of photocatalytic CO2 reduction toward CO production. Specifically, the Cu-MOF based on H3NTB (4,4′,4′′-nitrilotribenzoic acid) and the phen ligand (1,10-phenanthroline) could catalyze CO2 to CO, but with relatively low selectivity. After the introduction of the Fcdc ligand, the resulting Cu-MOF–Fcdc-20% displayed not only enhanced CO selectivity but also improved efficiency for CO2RR. Cu-MOF–Fcdc-20% exhibited a higher CO selectivity of 97.07% and a CO yield of 8.61 μmol g−1 h−1, which is about 5.48 times higher than that exhibited by Cu-MOF (1.57 μmol g−1 h−1, 81.35%). In situ FT-IR, EPR, and other experimental characterizations were further performed to investigate the intrinsic mechanism of the photocatalytic CO2 reduction process. The in situ FT-IR experimental data show that Cu-MOF–Fcdc-20% can effectively accelerate the rate-limiting step <img>, which in turn improves the rate and selectivity of CO2 conversion to CO. This work demonstrates that the rational design of the Cu–Fe bimetallic MOF structure can effectively improve the catalytic selectivity of the photocatalytic CO2 reduction reaction, offering a new way of designing highly selective MOF photocatalysts.","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":" 21","pages":" 6238-6246"},"PeriodicalIF":5.0,"publicationDate":"2023-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71903765","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

Highly selective hydroxylation of gaseous alkanes at the terminal position by wild-type CYP153A33† 野生型CYP153A33对气态烷烃在末端位置的高度选择性羟基化†

IF 5 3区化学

Catalysis Science & Technology Pub Date : 2023-09-13 DOI: 10.1039/D3CY00752A

Yusaku Kodama, Shinya Ariyasu, Masayuki Karasawa, Yuichiro Aiba and Osami Shoji

引用次数: 0