Nature Catalysis最新文献_第8页

Seed-assisted formation of NiFe anode catalysts for anion exchange membrane water electrolysis at industrial-scale current density 种子辅助形成用于工业规模电流密度阴离子交换膜电解水的镍铁合金阳极催化剂

IF 42.8 1区化学

Nature Catalysis Pub Date : 2024-08-13 DOI: 10.1038/s41929-024-01209-1

Zhiheng Li, Gaoxin Lin, Linqin Wang, Husileng Lee, Jian Du, Tang Tang, Guoheng Ding, Rong Ren, Wenlong Li, Xing Cao, Shiwen Ding, Wentao Ye, Wenxing Yang, Licheng Sun

{"title":"Seed-assisted formation of NiFe anode catalysts for anion exchange membrane water electrolysis at industrial-scale current density","authors":"Zhiheng Li, Gaoxin Lin, Linqin Wang, Husileng Lee, Jian Du, Tang Tang, Guoheng Ding, Rong Ren, Wenlong Li, Xing Cao, Shiwen Ding, Wentao Ye, Wenxing Yang, Licheng Sun","doi":"10.1038/s41929-024-01209-1","DOIUrl":"10.1038/s41929-024-01209-1","url":null,"abstract":"Alkaline oxygen evolution reaction is critical for green hydrogen production from water electrolysis but encounters great challenges when operated at industry-required ampere-scale current densities, such as insufficient mass transfer, reduced catalytic activity and limited lifetimes. Here we develop a one-step seed-assisted heterogeneous nucleation method (25 °C, 24 h) for producing a nickel–iron-based electrocatalyst (CAPist-L1, where CAP refers to the centre of artificial photosynthesis) for robust oxygen evolution reaction at ≥1,000 mA cm−2. Based on the insoluble nanoparticles in the heterogeneous nucleation system, a dense interlayer is formed that anchors the catalyst layer tightly on the substrate, ensuring stable long-term durability of 15,200 h (>21 months) in 1 M KOH at 1,000 mA cm−2. When applying CAPist-L1 as the anode catalyst in practical anion exchange membrane water electrolysis, it delivers a high activity of 7,350 mA cm−2 at 2.0 V and good stability at 1,000 mA cm−2 for 1,500 h at 80 °C. Anion exchange membrane water electrolysis is a promising technology for H2 production using precious metal-free catalysts, but certain hurdles persist for its broad deployment such as the operational stability of its anode catalyst. Now a seed-assisted heterogeneous nucleation method is put forward to prepare a NiFe catalyst with high activity and a stability of over 21 months at 1 A cm−2.","PeriodicalId":18845,"journal":{"name":"Nature Catalysis","volume":"7 8","pages":"944-952"},"PeriodicalIF":42.8,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141974101","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

Iridium nitrenoid-enabled arene C−H functionalization 氮化铱使炔烃 C-H 功能化

IF 42.8 1区化学

Nature Catalysis Pub Date : 2024-08-12 DOI: 10.1038/s41929-024-01207-3

Liang-Wen Qi, Torben Rogge, K. N. Houk, Yixin Lu

{"title":"Iridium nitrenoid-enabled arene C−H functionalization","authors":"Liang-Wen Qi, Torben Rogge, K. N. Houk, Yixin Lu","doi":"10.1038/s41929-024-01207-3","DOIUrl":"10.1038/s41929-024-01207-3","url":null,"abstract":"Direct arene C−H functionalization via nucleophilic aromatic substitution remains a challenging task. Here we report an iridium nitrenoid-catalysed arene C−H functionalization strategy, making use of readily available aryl azides as electrophiles to react with different nucleophilic reaction partners. The practicality of this methodology is demonstrated by enantioselective synthesis of chiral 2-amino-2′-hydroxy-1,1′-binaphthyl, a class of building blocks, ligands and catalysts in asymmetric transformation, using β-naphthols and β-naphthyl azides as starting materials under the catalysis of a tailored oxazoline-chelated iridium complex. Mechanistic studies and density functional theory calculations show that the reaction proceeds through an iridium nitrenoid-mediated C−H functionalization pathway. The reported arene C−H functionalization strategy serves as a blueprint to expand the applicability of nucleophilic aromatic substitution reactions and is particularly valuable for the synthesis of aniline-containing molecules. Effective strategies for direct arene C−H functionalization are sought after. Here arene C−H functionalization via iridium nitrenoid-catalysed nucleophilic aromatic substitution allows the coupling of aryl azides with different carbon nucleophiles and is applied to the enantioselective synthesis of NOBINs","PeriodicalId":18845,"journal":{"name":"Nature Catalysis","volume":"7 8","pages":"934-943"},"PeriodicalIF":42.8,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141918856","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

Electrochemical nitrate reduction to ammonia with cation shuttling in a solid electrolyte reactor 在固体电解质反应器中通过阳离子穿梭进行硝酸盐还原成氨的电化学反应

IF 42.8 1区化学

Nature Catalysis Pub Date : 2024-08-12 DOI: 10.1038/s41929-024-01200-w

Feng-Yang Chen, Ahmad Elgazzar, Stephanie Pecaut, Chang Qiu, Yuge Feng, Sushanth Ashokkumar, Zhou Yu, Chase Sellers, Shaoyun Hao, Peng Zhu, Haotian Wang

{"title":"Electrochemical nitrate reduction to ammonia with cation shuttling in a solid electrolyte reactor","authors":"Feng-Yang Chen, Ahmad Elgazzar, Stephanie Pecaut, Chang Qiu, Yuge Feng, Sushanth Ashokkumar, Zhou Yu, Chase Sellers, Shaoyun Hao, Peng Zhu, Haotian Wang","doi":"10.1038/s41929-024-01200-w","DOIUrl":"10.1038/s41929-024-01200-w","url":null,"abstract":"While electrochemical nitrate reduction to ammonia represents a promising route for water treatment and ammonia generation, one critical challenge in the field is the need for high-concentration supporting electrolytes in this electrochemical system. Here we report a three-chamber porous solid electrolyte reactor design coupled with cation shielding effects for efficient nitrate reduction reaction without supporting electrolytes. By feeding treated water from the cathode chamber to the middle porous solid electrolyte layer, we can realize an alkali metal cation shuttling loop from the middle layer back into the cathode chamber to boost the nitrate reduction selectivity and suppress the hydrogen evolution side reaction. This reactor system can deliver high ammonia Faradaic efficiencies (>90%) at practical current densities (>100 mA cm−2) under a typical wastewater nitrate concentration of 2,000 ppm, enabling a high-purity water effluent and NH3(g) as products with no need for electrolyte recovery processes. Electrocatalysis offers a route to improving the treatment of wastewater, yet the need for supporting electrolytes complicates the purification of products. Here a cell is designed based on a porous solid electrolyte layer with a cation shuttling strategy that allows direct conversion of nitrate-containing wastewater into NH3(g) and purified water.","PeriodicalId":18845,"journal":{"name":"Nature Catalysis","volume":"7 9","pages":"1032-1043"},"PeriodicalIF":42.8,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141974103","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 monoxide enabling synergistic carbonylation and (hetero)aryl migration 一氧化碳促成协同羰基化和（杂）芳基迁移

IF 42.8 1区化学

Nature Catalysis Pub Date : 2024-08-06 DOI: 10.1038/s41929-024-01204-6

Yuanrui Wang, Hefei Yang, Yan Zheng, Mingxia Hu, Jintao Zhu, Zhi-Peng Bao, Yanying Zhao, Xiao-Feng Wu

{"title":"Carbon monoxide enabling synergistic carbonylation and (hetero)aryl migration","authors":"Yuanrui Wang, Hefei Yang, Yan Zheng, Mingxia Hu, Jintao Zhu, Zhi-Peng Bao, Yanying Zhao, Xiao-Feng Wu","doi":"10.1038/s41929-024-01204-6","DOIUrl":"10.1038/s41929-024-01204-6","url":null,"abstract":"The activation and transformation of carbon monoxide (CO), a versatile C1 feedstock, continues to attract substantial attention. Traditionally, researchers have focused on the development of catalytic systems to activate CO and then quench the generated acyl intermediate with nucleophiles to complete the carbonylative transformations. Here, non-classically, we unveil a visible-light-induced, carbonylation-triggered radical relay rearrangement reaction, in which the CO insertion step is a key element for functional group migration. The selective insertion of a carbonyl group into the newly generated carbon radical provides a bridge for (hetero)aryl group migration, and the positive feedback of group migration also enables the carbon radical to capture CO more efficiently. A series of 1,4-dicarbonyl compounds containing fluoroalkyl and heterocycles are synthesized successfully under mild conditions, and the conversion of the products to valuable heteroaromatic biaryls indicates the synthetic potential of this platform. The activation and transformation of carbon monoxide (CO) continues to attract much attention. Now, the authors report a visible-light-induced, carbonylation-triggered radical relay rearrangement reaction in which the CO insertion step enables (hetero)aryl group migration.","PeriodicalId":18845,"journal":{"name":"Nature Catalysis","volume":"7 10","pages":"1065-1075"},"PeriodicalIF":42.8,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141895238","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

Author Correction: Reversely trapping atoms from a perovskite surface for high-performance and durable fuel cell cathodes 作者更正：从过氧化物表面反向捕获原子，实现高性能、耐用的燃料电池阴极

IF 42.8 1区化学

Nature Catalysis Pub Date : 2024-08-05 DOI: 10.1038/s41929-024-01214-4

Zechao Zhuang, Yihang Li, Ruohan Yu, Lixue Xia, Jiarui Yang, Zhiquan Lang, Jiexin Zhu, Jiazhao Huang, Jiaou Wang, Yu Wang, Liangdong Fan, Jinsong Wu, Yan Zhao, Dingsheng Wang, Yadong Li

引用次数: 0

A red-light-powered silicon nanowire biophotochemical diode for simultaneous CO2 reduction and glycerol valorization 红光供电的硅纳米线生物光化学二极管，可同时实现二氧化碳还原和甘油增值

IF 42.8 1区化学

Nature Catalysis Pub Date : 2024-07-30 DOI: 10.1038/s41929-024-01198-1

Jimin Kim, Jia-An Lin, Jinhyun Kim, Inwhan Roh, Soohyung Lee, Peidong Yang

{"title":"A red-light-powered silicon nanowire biophotochemical diode for simultaneous CO2 reduction and glycerol valorization","authors":"Jimin Kim, Jia-An Lin, Jinhyun Kim, Inwhan Roh, Soohyung Lee, Peidong Yang","doi":"10.1038/s41929-024-01198-1","DOIUrl":"10.1038/s41929-024-01198-1","url":null,"abstract":"A bias-free photochemical diode, in which a p-type photocathode is connected to an n-type photoanode to harness light for driving photoelectrochemical reduction and oxidation pairs, serves as a platform for realizing light-driven fuel generation from CO2. However, the conventional design, in which cathodic CO2 reduction is coupled with the anodic oxygen evolution reaction (OER), requires substantial energy input. Here we present a photochemical diode device that harnesses red light (740 nm) to simultaneously drive biophotocathodic CO2-to-multicarbon conversion and photoanodic glycerol oxidation as an alternative to the OER to overcome the above thermodynamic limitation. The device consists of an efficient CO2-fixing microorganism, Sporomusa ovata, interfaced with a silicon nanowire photocathode and a Pt–Au-loaded silicon nanowire photoanode. This photochemical diode operates bias-free under low-intensity (20 mW cm−2) red light irradiation with ~80% Faradaic efficiency for both the cathodic and anodic products. This work provides an alternative photosynthetic route to mitigate excessive CO2 emissions and efficiently generate value-added chemicals from CO2 and glycerol. CO2 reduction to value-added products is an attractive strategy in sustainable chemistry. Now a photochemical diode simultaneously drives biophotocathodic CO2-to-multicarbon conversion and photoanodic glycerol oxidation under red light with a photocurrent density of ~1.2 mA cm−2 and a Faradaic efficiency of ~80%.","PeriodicalId":18845,"journal":{"name":"Nature Catalysis","volume":"7 9","pages":"977-986"},"PeriodicalIF":42.8,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141794571","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

Catalysing rate and capacity 催化率和催化能力

IF 42.8 1区化学

Nature Catalysis Pub Date : 2024-07-26 DOI: 10.1038/s41929-024-01184-7

Soumyadip Mondal, Stefan A. Freunberger

引用次数: 0

Repulsion attractive for electrocatalysis 对电催化具有吸引力的斥力

IF 42.8 1区化学

Nature Catalysis Pub Date : 2024-07-26 DOI: 10.1038/s41929-024-01185-6

Rik V. Mom

引用次数: 0

Repurposing organic pollutants 有机污染物的再利用