Pub Date : 2024-07-08DOI: 10.1038/s41929-024-01190-9
Quansong Zhu, Conor L. Rooney, Hadar Shema, Christina Zeng, Julien A. Panetier, Elad Gross, Hailiang Wang, L. Robert Baker
Heterogenized molecular electrocatalysts are a promising group of materials that can electrocatalytically convert waste molecules into higher-value products. However, how the dispersion state of molecules affects the catalytic process is not well understood. Using cobalt phthalocyanine (CoPc) dispersed on carbon nanotubes (CNTs) as a model system, here we show that increasing the direct interaction of the molecular catalyst with cations notably enhances the CO2 reduction reaction. Specifically, molecularly dispersed CoPc on CNTs yields an eightfold increase in methanol selectivity compared with aggregated CoPc on CNTs. In situ spectroscopic studies confirm the presence of two intermediates located at different positions of the double layer. Density functional theory calculations further reveal that CoPc molecules inside the Stern layer are active for methanol production due to the direct interaction with cations. Similar enhancement effects are also observed for other reactions, showing that dispersing molecular catalysts into monomeric states is a general design parameter.
{"title":"The solvation environment of molecularly dispersed cobalt phthalocyanine determines methanol selectivity during electrocatalytic CO2 reduction","authors":"Quansong Zhu, Conor L. Rooney, Hadar Shema, Christina Zeng, Julien A. Panetier, Elad Gross, Hailiang Wang, L. Robert Baker","doi":"10.1038/s41929-024-01190-9","DOIUrl":"https://doi.org/10.1038/s41929-024-01190-9","url":null,"abstract":"<p>Heterogenized molecular electrocatalysts are a promising group of materials that can electrocatalytically convert waste molecules into higher-value products. However, how the dispersion state of molecules affects the catalytic process is not well understood. Using cobalt phthalocyanine (CoPc) dispersed on carbon nanotubes (CNTs) as a model system, here we show that increasing the direct interaction of the molecular catalyst with cations notably enhances the CO<sub>2</sub> reduction reaction. Specifically, molecularly dispersed CoPc on CNTs yields an eightfold increase in methanol selectivity compared with aggregated CoPc on CNTs. In situ spectroscopic studies confirm the presence of two intermediates located at different positions of the double layer. Density functional theory calculations further reveal that CoPc molecules inside the Stern layer are active for methanol production due to the direct interaction with cations. Similar enhancement effects are also observed for other reactions, showing that dispersing molecular catalysts into monomeric states is a general design parameter.</p><figure></figure>","PeriodicalId":18845,"journal":{"name":"Nature Catalysis","volume":null,"pages":null},"PeriodicalIF":37.8,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141557139","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}
The catalytic enantioselective construction of C(sp3)−C(sp3) bonds remains a substantial challenge in organic synthesis. One particularly promising approach is the use of transition-metal-catalysed C(sp3)−H functionalization. However, a general strategy for the enantioselective alkylation of non-acidic C(sp3)−H bonds has yet to be developed. Here we present a unified platform for the enantioselective (trideutero)methylation and alkylation of α-amino C(sp3)–H bonds, using a combination of photoredox and nickel catalysis with widely available redox-active esters. This technique activates two coupling agents to form carbon-centred radicals, which are then asymmetrically coupled by a chiral nickel catalyst. This strategy is unique in its ability to separately control radical generation and cross-coupling, facilitating the use of transiently generated alkyl radicals, including highly reactive methyl radicals, in asymmetric catalysis, and thereby expediting the synthesis of enantioenriched bioactive alkaloids and offering a promising method for advancing asymmetric C(sp3)−C(sp3) bond formation. The use of a transition-metal catalyst for enantioselective alkylation of non-acidic C(sp3)–H bonds remains a challenge in organic synthesis. Now, the authors present a platform for the enantioselective (trideutero)methylation and alkylation of α-amino C(sp3)–H bonds via nickel-photoredox catalysis.
{"title":"Enantioselective alkylation of α-amino C(sp3)−H bonds via photoredox and nickel catalysis","authors":"Jian Li, Buqing Cheng, Xiaomin Shu, Zhen Xu, Chengyang Li, Haohua Huo","doi":"10.1038/s41929-024-01192-7","DOIUrl":"10.1038/s41929-024-01192-7","url":null,"abstract":"The catalytic enantioselective construction of C(sp3)−C(sp3) bonds remains a substantial challenge in organic synthesis. One particularly promising approach is the use of transition-metal-catalysed C(sp3)−H functionalization. However, a general strategy for the enantioselective alkylation of non-acidic C(sp3)−H bonds has yet to be developed. Here we present a unified platform for the enantioselective (trideutero)methylation and alkylation of α-amino C(sp3)–H bonds, using a combination of photoredox and nickel catalysis with widely available redox-active esters. This technique activates two coupling agents to form carbon-centred radicals, which are then asymmetrically coupled by a chiral nickel catalyst. This strategy is unique in its ability to separately control radical generation and cross-coupling, facilitating the use of transiently generated alkyl radicals, including highly reactive methyl radicals, in asymmetric catalysis, and thereby expediting the synthesis of enantioenriched bioactive alkaloids and offering a promising method for advancing asymmetric C(sp3)−C(sp3) bond formation. The use of a transition-metal catalyst for enantioselective alkylation of non-acidic C(sp3)–H bonds remains a challenge in organic synthesis. Now, the authors present a platform for the enantioselective (trideutero)methylation and alkylation of α-amino C(sp3)–H bonds via nickel-photoredox catalysis.","PeriodicalId":18845,"journal":{"name":"Nature Catalysis","volume":null,"pages":null},"PeriodicalIF":42.8,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141546241","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}
Pub Date : 2024-07-02DOI: 10.1038/s41929-024-01181-w
Donato Decarolis, Monik Panchal, Matthew Quesne, Khaled Mohammed, Shaojun Xu, Mark Isaacs, Adam H. Clark, Luke L. Keenan, Takuo Wakisaka, Kohei Kusada, Hiroshi Kitagawa, C. Richard A. Catlow, Emma K. Gibson, Alexandre Goguet, Peter P. Wells
Unravelling kinetic oscillations, which arise spontaneously during catalysis, has been a challenge for decades but is important not only to understand these complex phenomena but also to achieve increased activity. Here we show, through temporally and spatially resolved operando analysis, that CO oxidation over Rh/Al2O3 involves a series of thermal levering events—CO oxidation, Boudouard reaction and carbon combustion—that drive oscillatory CO2 formation. This catalytic sequence relies on harnessing localized temperature episodes at the nanoparticle level as an efficient means to drive reactions in situations in which the macroscopic conditions are unfavourable for catalysis. This insight provides a new basis for coupling thermal events at the nanoscale for efficient harvesting of energy and enhanced catalyst technologies. Understanding oscillation phenomena in catalysis is a long-standing challenge. Here the authors report a temporally and spatially resolved operando analysis of CO oxidation over Rh/Al2O3, revealing the interplay of Boudouard reaction and carbon combustion in generating the oscillations.
{"title":"Localized thermal levering events drive spontaneous kinetic oscillations during CO oxidation on Rh/Al2O3","authors":"Donato Decarolis, Monik Panchal, Matthew Quesne, Khaled Mohammed, Shaojun Xu, Mark Isaacs, Adam H. Clark, Luke L. Keenan, Takuo Wakisaka, Kohei Kusada, Hiroshi Kitagawa, C. Richard A. Catlow, Emma K. Gibson, Alexandre Goguet, Peter P. Wells","doi":"10.1038/s41929-024-01181-w","DOIUrl":"10.1038/s41929-024-01181-w","url":null,"abstract":"Unravelling kinetic oscillations, which arise spontaneously during catalysis, has been a challenge for decades but is important not only to understand these complex phenomena but also to achieve increased activity. Here we show, through temporally and spatially resolved operando analysis, that CO oxidation over Rh/Al2O3 involves a series of thermal levering events—CO oxidation, Boudouard reaction and carbon combustion—that drive oscillatory CO2 formation. This catalytic sequence relies on harnessing localized temperature episodes at the nanoparticle level as an efficient means to drive reactions in situations in which the macroscopic conditions are unfavourable for catalysis. This insight provides a new basis for coupling thermal events at the nanoscale for efficient harvesting of energy and enhanced catalyst technologies. Understanding oscillation phenomena in catalysis is a long-standing challenge. Here the authors report a temporally and spatially resolved operando analysis of CO oxidation over Rh/Al2O3, revealing the interplay of Boudouard reaction and carbon combustion in generating the oscillations.","PeriodicalId":18845,"journal":{"name":"Nature Catalysis","volume":null,"pages":null},"PeriodicalIF":42.8,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41929-024-01181-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141495889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Platinum (Pt) nanocatalysts are essential for facilitating the cathodic oxygen reduction reaction in proton exchange membrane fuel cells but suffer from a trade-off between activity and durability. Here we present the design of a fine nanocatalyst comprising Pt nanoparticles with sparsely embedded cobalt oxide clusters (CoOx@Pt). This design exploits the strong Pt/oxide interaction, which grants the catalyst its high structural and chemical durability without sacrificing activity. The CoOx@Pt nanocatalyst delivers a high initial mass activity of 1.10 A mgPt−1, a rated power density of 1.04 W cm−2 and a Pt utilization of 10.4 W mgPt−1 in a membrane electrode assembly. It exhibits a notably high durability that features a mass activity retention of 88.2%, a voltage loss of 13.3 mV at 0.8 A cm−2 and a small rated power loss of 7.5% after accelerated stress testing. This durability could offer a long projected lifetime of 15,000 hours and may greatly reduce the lifetime-adjusted cost. Pt-based catalysts are state-of-the-art cathodes in fuel cells, but they experience a trade-off between activity and durability. Now a Pt nanocatalyst with embedded cobalt oxide clusters is shown to promote stability during proton exchange membrane fuel cell operation without sacrificing activity, achieving 88.2% mass activity retention after 30,000 accelerated stress test cycles.
铂（Pt）纳米催化剂对于促进质子交换膜燃料电池中的阴极氧还原反应至关重要，但其活性和耐用性之间存在权衡问题。在这里，我们介绍了一种精细纳米催化剂的设计，这种催化剂由铂纳米颗粒和稀疏嵌入的氧化钴团簇（CoOx@Pt）组成。这种设计利用了铂/氧化物的强相互作用，使催化剂在不牺牲活性的情况下具有较高的结构和化学耐久性。CoOx@Pt 纳米催化剂的初始质量活性高达 1.10 A mgPt-1，额定功率密度为 1.04 W cm-2，在膜电极组件中的铂利用率为 10.4 W mgPt-1。在加速应力测试后，它的耐用性显著提高，质量活性保持率达到 88.2%，0.8 A cm-2 时的电压损失为 13.3 mV，额定功率损失仅为 7.5%。这种耐用性可提供长达 15,000 小时的预期寿命，并可大大降低按寿命调整的成本。
{"title":"Embedded oxide clusters stabilize sub-2 nm Pt nanoparticles for highly durable fuel cells","authors":"Bosi Peng, Zeyan Liu, Luca Sementa, Qingying Jia, Qiang Sun, Carlo U. Segre, Ershuai Liu, Mingjie Xu, Yu-Han (Joseph) Tsai, Xingxu Yan, Zipeng Zhao, Jin Huang, Xiaoqing Pan, Xiangfeng Duan, Alessandro Fortunelli, Yu Huang","doi":"10.1038/s41929-024-01180-x","DOIUrl":"10.1038/s41929-024-01180-x","url":null,"abstract":"Platinum (Pt) nanocatalysts are essential for facilitating the cathodic oxygen reduction reaction in proton exchange membrane fuel cells but suffer from a trade-off between activity and durability. Here we present the design of a fine nanocatalyst comprising Pt nanoparticles with sparsely embedded cobalt oxide clusters (CoOx@Pt). This design exploits the strong Pt/oxide interaction, which grants the catalyst its high structural and chemical durability without sacrificing activity. The CoOx@Pt nanocatalyst delivers a high initial mass activity of 1.10 A mgPt−1, a rated power density of 1.04 W cm−2 and a Pt utilization of 10.4 W mgPt−1 in a membrane electrode assembly. It exhibits a notably high durability that features a mass activity retention of 88.2%, a voltage loss of 13.3 mV at 0.8 A cm−2 and a small rated power loss of 7.5% after accelerated stress testing. This durability could offer a long projected lifetime of 15,000 hours and may greatly reduce the lifetime-adjusted cost. Pt-based catalysts are state-of-the-art cathodes in fuel cells, but they experience a trade-off between activity and durability. Now a Pt nanocatalyst with embedded cobalt oxide clusters is shown to promote stability during proton exchange membrane fuel cell operation without sacrificing activity, achieving 88.2% mass activity retention after 30,000 accelerated stress test cycles.","PeriodicalId":18845,"journal":{"name":"Nature Catalysis","volume":null,"pages":null},"PeriodicalIF":42.8,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141489488","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}
Pub Date : 2024-07-01DOI: 10.1038/s41929-024-01182-9
Jun-Jie Wang, He Huang, Han-Li Sun, Fan Yang, Jun Wen, Rong Zhu
The renaissance of catalytic metal hydride hydrogen atom transfer (MHAT) offers advanced tools for radical chemistry on simple olefins. While 3d transition metals like cobalt, iron and manganese have been extensively studied in catalytic MHAT, the potential of copper remains unexplored. This is due to the polar reactivity exhibited by classical nucleophilic Cu(I)–H. Here we report copper-catalysed MHAT-like oxidative hydrofunctionalization reactions. In contrast to conventional Cu(I)–H chemistry, the putative Cu-MHAT process produces alkyl radicals with high chemoselectivity and regioselectivity, which are subsequently captured by Cu(II) species to undergo coupling reactions with a broad scope of oxygen-, nitrogen-, halogen- and carbon-based nucleophiles. Preliminary results suggest viable extension to asymmetric catalysis and radical polymerization. This work offers a complementary oxidative MHAT platform. Cobalt, iron or manganese catalysts are the metals of choice in alkene functionalization reactions via catalytic metal hydride hydrogen atom transfer (MHAT). Now a complementary MHAT-like system based on copper is proposed to operate in a regioselective Markovnikov addition reaction of nucleophiles to olefins.
{"title":"Mimicking hydrogen-atom-transfer-like reactivity in copper-catalysed olefin hydrofunctionalization","authors":"Jun-Jie Wang, He Huang, Han-Li Sun, Fan Yang, Jun Wen, Rong Zhu","doi":"10.1038/s41929-024-01182-9","DOIUrl":"10.1038/s41929-024-01182-9","url":null,"abstract":"The renaissance of catalytic metal hydride hydrogen atom transfer (MHAT) offers advanced tools for radical chemistry on simple olefins. While 3d transition metals like cobalt, iron and manganese have been extensively studied in catalytic MHAT, the potential of copper remains unexplored. This is due to the polar reactivity exhibited by classical nucleophilic Cu(I)–H. Here we report copper-catalysed MHAT-like oxidative hydrofunctionalization reactions. In contrast to conventional Cu(I)–H chemistry, the putative Cu-MHAT process produces alkyl radicals with high chemoselectivity and regioselectivity, which are subsequently captured by Cu(II) species to undergo coupling reactions with a broad scope of oxygen-, nitrogen-, halogen- and carbon-based nucleophiles. Preliminary results suggest viable extension to asymmetric catalysis and radical polymerization. This work offers a complementary oxidative MHAT platform. Cobalt, iron or manganese catalysts are the metals of choice in alkene functionalization reactions via catalytic metal hydride hydrogen atom transfer (MHAT). Now a complementary MHAT-like system based on copper is proposed to operate in a regioselective Markovnikov addition reaction of nucleophiles to olefins.","PeriodicalId":18845,"journal":{"name":"Nature Catalysis","volume":null,"pages":null},"PeriodicalIF":42.8,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141489507","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}
Pub Date : 2024-06-26DOI: 10.1038/s41929-024-01178-5
Quoc Hoang Pham, Rene M. Koenigs
A combination of an iron(ii)-catalyst and a hydroxylammonium salt enables the direct and selective conversion of an inert aromatic C–H bond to a valuable, unprotected amine functionality. This approach solves a long standing challenge in modern synthesis.
{"title":"A radical strategy towards ortho-amination reactions","authors":"Quoc Hoang Pham, Rene M. Koenigs","doi":"10.1038/s41929-024-01178-5","DOIUrl":"10.1038/s41929-024-01178-5","url":null,"abstract":"A combination of an iron(ii)-catalyst and a hydroxylammonium salt enables the direct and selective conversion of an inert aromatic C–H bond to a valuable, unprotected amine functionality. This approach solves a long standing challenge in modern synthesis.","PeriodicalId":18845,"journal":{"name":"Nature Catalysis","volume":null,"pages":null},"PeriodicalIF":42.8,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141461822","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}
Pub Date : 2024-06-26DOI: 10.1038/s41929-024-01172-x
Alessandro Senocrate, Francesco Bernasconi, Peter Kraus, Nukorn Plainpan, Jens Trafkowski, Fabian Tolle, Thomas Weber, Ulrich Sauter, Corsin Battaglia
Electrochemical CO2 reduction (eCO2R) is a promising strategy to transform detrimental CO2 emissions into sustainable fuels and chemicals. Key requirements for advancing this field are the development of analytical systems and of methods that are able to accurately and reproducibly assess the performance of catalysts, electrodes and electrolysers. Here we present a comprehensive analytical system for eCO2R based on commercial hardware, which captures data for >20 gas and liquid products with <5 min time resolution by chromatography, tracks gas flow rates, monitors electrolyser temperatures and flow pressures, and records electrolyser resistances and electrode surface areas. To complement the hardware, we develop an open-source software that automatically parses, aligns in time and post-processes the heterogeneous data, yielding quantities such as Faradaic efficiencies and corrected voltages. We showcase the system’s capabilities by performing measurements and data analysis on eight parallel electrolyser cells simultaneously. Electrocatalytic CO2 reduction powered by renewable electricity is a promising technology for sustainable fuel and chemical production but accurate and reproducible analytical methods are required to advance the basic and applied science. Here a comprehensive analytical system is designed to capture numerous operating parameters in real time with automated and standardized data analysis.
{"title":"Parallel experiments in electrochemical CO2 reduction enabled by standardized analytics","authors":"Alessandro Senocrate, Francesco Bernasconi, Peter Kraus, Nukorn Plainpan, Jens Trafkowski, Fabian Tolle, Thomas Weber, Ulrich Sauter, Corsin Battaglia","doi":"10.1038/s41929-024-01172-x","DOIUrl":"10.1038/s41929-024-01172-x","url":null,"abstract":"Electrochemical CO2 reduction (eCO2R) is a promising strategy to transform detrimental CO2 emissions into sustainable fuels and chemicals. Key requirements for advancing this field are the development of analytical systems and of methods that are able to accurately and reproducibly assess the performance of catalysts, electrodes and electrolysers. Here we present a comprehensive analytical system for eCO2R based on commercial hardware, which captures data for >20 gas and liquid products with <5 min time resolution by chromatography, tracks gas flow rates, monitors electrolyser temperatures and flow pressures, and records electrolyser resistances and electrode surface areas. To complement the hardware, we develop an open-source software that automatically parses, aligns in time and post-processes the heterogeneous data, yielding quantities such as Faradaic efficiencies and corrected voltages. We showcase the system’s capabilities by performing measurements and data analysis on eight parallel electrolyser cells simultaneously. Electrocatalytic CO2 reduction powered by renewable electricity is a promising technology for sustainable fuel and chemical production but accurate and reproducible analytical methods are required to advance the basic and applied science. Here a comprehensive analytical system is designed to capture numerous operating parameters in real time with automated and standardized data analysis.","PeriodicalId":18845,"journal":{"name":"Nature Catalysis","volume":null,"pages":null},"PeriodicalIF":42.8,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141461986","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}
Pub Date : 2024-06-26DOI: 10.1038/s41929-024-01191-8
This Editorial deals with scientific language in research papers, considering the causes — as well as the problems — associated with the use of hyperbolic statements.
这篇社论论述了研究论文中的科学语言，探讨了使用夸张语句的原因和问题。
{"title":"The unbearable lightness of hyperbolic language","authors":"","doi":"10.1038/s41929-024-01191-8","DOIUrl":"10.1038/s41929-024-01191-8","url":null,"abstract":"This Editorial deals with scientific language in research papers, considering the causes — as well as the problems — associated with the use of hyperbolic statements.","PeriodicalId":18845,"journal":{"name":"Nature Catalysis","volume":null,"pages":null},"PeriodicalIF":42.8,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41929-024-01191-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141461904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-06-26DOI: 10.1038/s41929-024-01171-y
Katrin F. Domke
Rational design of improved electrocatalysts requires a profound understanding of the catalyst’s active sites during the reaction. However, molecule conversion occurs on the few-nanometre scale and operando tools for simultaneous nanoscale chemical, electronic and structural investigation are scarce. Now, the geometric and electronic creation and evolution of individual active sites during the hydrogen evolution reaction on MoS2 has been unravelled using electrochemical tip-enhanced Raman spectroscopy.
{"title":"Monitoring catalytic nanosites in action","authors":"Katrin F. Domke","doi":"10.1038/s41929-024-01171-y","DOIUrl":"10.1038/s41929-024-01171-y","url":null,"abstract":"Rational design of improved electrocatalysts requires a profound understanding of the catalyst’s active sites during the reaction. However, molecule conversion occurs on the few-nanometre scale and operando tools for simultaneous nanoscale chemical, electronic and structural investigation are scarce. Now, the geometric and electronic creation and evolution of individual active sites during the hydrogen evolution reaction on MoS2 has been unravelled using electrochemical tip-enhanced Raman spectroscopy.","PeriodicalId":18845,"journal":{"name":"Nature Catalysis","volume":null,"pages":null},"PeriodicalIF":42.8,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141461922","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}
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