Nature Catalysis最新文献_第2页

Reaching out

IF 42.8 1区化学

Nature Catalysis Pub Date : 2025-01-29 DOI: 10.1038/s41929-025-01297-7

引用次数: 0

Enzymatic catalysis meets radical coupling

IF 42.8 1区化学

Nature Catalysis Pub Date : 2025-01-29 DOI: 10.1038/s41929-025-01290-0

Chenyu Wang

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Role of the human-in-the-loop in emerging self-driving laboratories for heterogeneous catalysis

IF 42.8 1区化学

Nature Catalysis Pub Date : 2025-01-29 DOI: 10.1038/s41929-024-01275-5

Christoph Scheurer, Karsten Reuter

{"title":"Role of the human-in-the-loop in emerging self-driving laboratories for heterogeneous catalysis","authors":"Christoph Scheurer, Karsten Reuter","doi":"10.1038/s41929-024-01275-5","DOIUrl":"10.1038/s41929-024-01275-5","url":null,"abstract":"Self-driving laboratories (SDLs) represent a cutting-edge convergence of machine learning with laboratory automation. SDLs operate in active learning loops, in which a machine learning algorithm plans experiments that are subsequently executed by increasingly automated (robotic) modules. Here we present our view on emerging SDLs for accelerated discovery and process optimization in heterogeneous catalysis. We argue against the paradigm of full automation and the goal of keeping the human out of the loop. Based on analysis of the involved workflows, we instead conclude that crucial advances will come from establishing fast proxy experiments and re-engineering existing apparatuses and measurement protocols. Industrially relevant use cases will also require humans to be kept in the loop for continuous decision-making. In turn, active learning algorithms will have to be advanced that can flexibly deal with corresponding adaptations of the design space and varying information content and noise in the acquired data. Uses of machine learning and automation are increasing and these techniques are becoming popular in catalysis research. This Perspective discusses how active learning workflows and human intervention should be optimized to ensure the most efficient progress for emerging self-driving laboratories performing heterogeneous catalysis research.","PeriodicalId":18845,"journal":{"name":"Nature Catalysis","volume":"8 1","pages":"13-19"},"PeriodicalIF":42.8,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143055010","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

Clarifying cation control

IF 42.8 1区化学

Nature Catalysis Pub Date : 2025-01-29 DOI: 10.1038/s41929-024-01284-4

Michael J. Janik

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Molecular basis of activity changes in acid catalysis within nanoconfined water

IF 42.8 1区化学

Nature Catalysis Pub Date : 2025-01-29 DOI: 10.1038/s41929-025-01296-8

引用次数: 0

Plasma-driven decentralized production of essential chemicals

IF 42.8 1区化学

Nature Catalysis Pub Date : 2025-01-29 DOI: 10.1038/s41929-024-01283-5

Maria L. Carreon

引用次数: 0

An efficient catalytic route in haem peroxygenases mediated by O2/small-molecule reductant pairs for sustainable applications

IF 42.8 1区化学

Nature Catalysis Pub Date : 2025-01-28 DOI: 10.1038/s41929-024-01281-7

Di Deng, Zhihui Jiang, Lixin Kang, Langxing Liao, Xiaodong Zhang, Yuben Qiao, Yang Zhou, Liulin Yang, Binju Wang, Aitao Li

{"title":"An efficient catalytic route in haem peroxygenases mediated by O2/small-molecule reductant pairs for sustainable applications","authors":"Di Deng, Zhihui Jiang, Lixin Kang, Langxing Liao, Xiaodong Zhang, Yuben Qiao, Yang Zhou, Liulin Yang, Binju Wang, Aitao Li","doi":"10.1038/s41929-024-01281-7","DOIUrl":"10.1038/s41929-024-01281-7","url":null,"abstract":"Haem peroxygenases are attractive biocatalysts for incorporating oxygen into organic molecules using H2O2. However, their practical applications are hindered by irreversible oxidative inactivation due to exogenous H2O2 usage. Here we present an alternative catalytic route in haem peroxygenases that uses O2 and small-molecule reductants such as ascorbic acid and dehydroascorbic acid (DHA) to drive reactions. Our experimental and computational studies indicated that DHAA, the hydrated form of DHA, serves as the key co-substrate that activates oxygen to generate the active oxyferryl haem compound I. We also demonstrate the broad applicability of this O2/reductant-dependent route across various haem peroxygenases, highlighting its biological significance for mono-oxygenase functionality. Importantly, this innovative route avoids the use of H2O2, thereby preventing the risk of irreversible enzyme inactivation. Finally, scaled-up reactions yielded chiral, value-added products with excellent productivity, underscoring the synthetic potential of this developed peroxygenase technology for sustainable chemical transformations. H2O2-dependent haem-peroxygenase-catalysed C–H bond oxyfunctionalization reactions have attracted much attention, but elevated concentrations of H2O2 are detrimental to the enzyme. Now, it is reported that this biocatalyst can operate via an alternative pathway using O2 and small-molecule reductants.","PeriodicalId":18845,"journal":{"name":"Nature Catalysis","volume":"8 1","pages":"20-32"},"PeriodicalIF":42.8,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143050532","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

In situ electrochemical production of solid peroxide from urine 用尿液原位电化学生产固体过氧化物

IF 42.8 1区化学

Nature Catalysis Pub Date : 2025-01-20 DOI: 10.1038/s41929-024-01277-3

Xinjian Shi, Yue Jiang, Bailin Zeng, Zhuoyue Sun, Maojin Yun, Peng Lv, Yu Jia, Xiaolin Zheng

{"title":"In situ electrochemical production of solid peroxide from urine","authors":"Xinjian Shi, Yue Jiang, Bailin Zeng, Zhuoyue Sun, Maojin Yun, Peng Lv, Yu Jia, Xiaolin Zheng","doi":"10.1038/s41929-024-01277-3","DOIUrl":"10.1038/s41929-024-01277-3","url":null,"abstract":"The selective extraction of urea from urine under mild conditions is essential for urban wastewater treatment. Here we devise an in situ electrochemical technique that converts urea, a nitrogen-rich waste, into percarbamide, a crystalline peroxide derivative of urea. This process simultaneously facilitates urine treatment and transforms waste into a valuable product. Using modified graphitic carbon-based catalysts, which are engineered with optimized active sites and structures, the system solidifies hydrogen peroxide and accelerates urea conversion. Precise control of temperature and urea concentration further enhances catalytic performance. The optimized process achieves near 100% purity in percarbamide precipitation from both human and mammalian urine. The collected percarbamide demonstrates remarkable potential for applications in various domains. This approach establishes a closed-loop system for production, utilization and recovery, offering a scalable solution for large-scale urine treatment with important economic and environmental value. The extraction of urea is an important part of wastewater purification and a potential source of valuable fixed nitrogen. Here the authors combine electrocatalytic oxygen reduction with precipitation of urea from urine in the form of a solid peroxide (percarbamide) and demonstrate several potential applications.","PeriodicalId":18845,"journal":{"name":"Nature Catalysis","volume":"8 1","pages":"67-78"},"PeriodicalIF":42.8,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142990880","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 hydrogenative oxidation strategy for the single-step synthesis of lactams from N-heteroarenes using water 水催化n -杂芳烃一步合成内酰胺的氢化氧化策略

IF 37.8 1区化学

Nature Catalysis Pub Date : 2025-01-20 DOI: 10.1038/s41929-024-01286-2

Yaoyu Liang, Jie Luo, Cai You, Yael Diskin-Posner, David Milstein

引用次数: 0

Coupled cation–electron transfer at the Pt(111)/perfluoro-sulfonic acid ionomer interface and its impact on the oxygen reduction reaction kinetics Pt(111)/全氟磺酸离聚体界面阳离子-电子耦合转移及其对氧还原反应动力学的影响

IF 42.8 1区化学

Nature Catalysis Pub Date : 2025-01-13 DOI: 10.1038/s41929-024-01279-1

Kaiyue Zhao, Mingchuan Luo, Yongfan Zhang, Xiaoxia Chang, Bingjun Xu

{"title":"Coupled cation–electron transfer at the Pt(111)/perfluoro-sulfonic acid ionomer interface and its impact on the oxygen reduction reaction kinetics","authors":"Kaiyue Zhao, Mingchuan Luo, Yongfan Zhang, Xiaoxia Chang, Bingjun Xu","doi":"10.1038/s41929-024-01279-1","DOIUrl":"10.1038/s41929-024-01279-1","url":null,"abstract":"Electrochemical interfaces between polymer electrolytes and electrodes are central to electrochemical devices in the global transition towards renewable energy. Here we show that the adsorption and desorption of sulfonates in Nafion on Pt(111) involve distinct elementary steps, with the latter proceeding through a coupled cation–electron transfer. Adsorbed sulfonates not only block a fraction of surface Pt sites but, more importantly, generate two additional types of surface adsorbate, OHNafion and ONafion, which exhibit distinct kinetic properties from adsorbed OH and O on bare Pt(111), respectively. The impact of the adsorption of sulfonate groups in Nafion on the activity of the oxygen reduction reaction (ORR) on Pt cannot be rationalized by existing thermodynamic descriptors. The reduced ORR activity on the Nafion-covered Pt(111) is caused by the kinetically hindered *O→*OH conversion and *OH reduction on sites close to adsorbed sulfonates. The understanding of electrochemical interfaces between polymer electrolytes and metal electrodes, which is critical to many practical devices, remains limited. Now, the interaction between Nafion’s sulfonate groups and platinum and its impact on the oxygen reduction reaction is studied in detail, and a distinct coupled cation–electron transfer mechanism is identified.","PeriodicalId":18845,"journal":{"name":"Nature Catalysis","volume":"8 1","pages":"46-57"},"PeriodicalIF":42.8,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142968209","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