Jari Leemans, Petru P. Albertini, Coline Boulanger, Raffaella Buonsanti
{"title":"In situ regeneration of CO2 electroreduction metal catalysts","authors":"Jari Leemans, Petru P. Albertini, Coline Boulanger, Raffaella Buonsanti","doi":"10.1038/s44286-026-00383-2","DOIUrl":"10.1038/s44286-026-00383-2","url":null,"abstract":"As the CO2 electrolysis field transitions to technological implementation, operational stability emerges as an essential focus of both fundamental and engineering research. This Comment discusses the in situ regeneration of CO2 electroreduction metal catalysts as one of the tools to achieve operational stability.","PeriodicalId":501699,"journal":{"name":"Nature Chemical Engineering","volume":"3 5","pages":"250-253"},"PeriodicalIF":0.0,"publicationDate":"2026-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148012324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Simulating complex physics at lightning speed","authors":"Ionuț Farcaș, Karen Willcox","doi":"10.1038/s44286-026-00377-0","DOIUrl":"10.1038/s44286-026-00377-0","url":null,"abstract":"Ionuț Farcaș and Karen Willcox discuss how reduced-order models open new paths for simulating complex physics by compressing days of computation into seconds.","PeriodicalId":501699,"journal":{"name":"Nature Chemical Engineering","volume":"3 4","pages":"244-244"},"PeriodicalIF":0.0,"publicationDate":"2026-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147738863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Cooling worth its salt","authors":"Mo Qiao","doi":"10.1038/s44286-026-00390-3","DOIUrl":"10.1038/s44286-026-00390-3","url":null,"abstract":"","PeriodicalId":501699,"journal":{"name":"Nature Chemical Engineering","volume":"3 4","pages":"199-199"},"PeriodicalIF":0.0,"publicationDate":"2026-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147738867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Review articles in the era of agentic artificial intelligence","authors":"","doi":"10.1038/s44286-026-00387-y","DOIUrl":"10.1038/s44286-026-00387-y","url":null,"abstract":"Artificial intelligence assistants can now survey a field rapidly and with increasing accuracy, but impactful Review and Perspective articles have never been just surveys. Their value lies in perspective provided by the author(s).","PeriodicalId":501699,"journal":{"name":"Nature Chemical Engineering","volume":"3 4","pages":"195-196"},"PeriodicalIF":0.0,"publicationDate":"2026-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s44286-026-00387-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147738865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"When less is more","authors":"Yanfei Zhu","doi":"10.1038/s44286-026-00388-x","DOIUrl":"10.1038/s44286-026-00388-x","url":null,"abstract":"","PeriodicalId":501699,"journal":{"name":"Nature Chemical Engineering","volume":"3 4","pages":"198-198"},"PeriodicalIF":0.0,"publicationDate":"2026-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147738866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"pH gradients in biomolecular condensates","authors":"Thomas Dursch","doi":"10.1038/s44286-026-00386-z","DOIUrl":"10.1038/s44286-026-00386-z","url":null,"abstract":"","PeriodicalId":501699,"journal":{"name":"Nature Chemical Engineering","volume":"3 5","pages":"256-256"},"PeriodicalIF":0.0,"publicationDate":"2026-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148012336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bradie S. Crandall, Gregory S. Hutchings, Feng Jiao
{"title":"Stack-level challenges for CO and CO2 electrolysis","authors":"Bradie S. Crandall, Gregory S. Hutchings, Feng Jiao","doi":"10.1038/s44286-026-00378-z","DOIUrl":"10.1038/s44286-026-00378-z","url":null,"abstract":"CO and CO2 electrolysis have progressed rapidly from laboratory test cells to pilot-scale stacks. This Comment argues that the field must now shift focus to confront the unique engineering and deployment challenges of stack-scale systems, which represent a decisive frontier for achieving commercialization and climate impact.","PeriodicalId":501699,"journal":{"name":"Nature Chemical Engineering","volume":"3 5","pages":"246-249"},"PeriodicalIF":0.0,"publicationDate":"2026-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148012325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Cells set the scale","authors":"Thomas Dursch","doi":"10.1038/s44286-026-00385-0","DOIUrl":"10.1038/s44286-026-00385-0","url":null,"abstract":"","PeriodicalId":501699,"journal":{"name":"Nature Chemical Engineering","volume":"3 4","pages":"197-197"},"PeriodicalIF":0.0,"publicationDate":"2026-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147738941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Co-electrolysis of CO2 and H2O in an alkaline polymer layer-coated proton-exchange-membrane electrolyzer","authors":"Yanpeng Song, Xinhui Guo, Yunfan Fu, Ziqi Liao, Zichao Wu, Pengfei Wei, Guoxiong Wang, Xinhe Bao","doi":"10.1038/s44286-026-00381-4","DOIUrl":"10.1038/s44286-026-00381-4","url":null,"abstract":"Salt precipitation and carbon loss caused by carbonate formation and crossover limit the industrial scalability of CO2 electrolysis using alkaline or pH-neutral electrolytes. Here we constructed an alkaline polymer layer-coated proton-exchange-membrane electrolyzer to suppress CO2 crossover and prevent salt precipitation by pure water feeding. Guided by finite element simulations, alkaline polymers with a high density of quaternary ammonium groups were synthesized to enrich OH− and modulate the electric field within the catalyst electric double layer, thereby enhancing CO2 adsorption and interfacial ionic conductivity. Consequently, the electrolyzer achieved a single-pass CO2 conversion of 62.4%, energy efficiency of 39.0% and ~80% CO2 utilization, with stable operation for 260 h at 200 mA cm−2. In addition, a scaled-up electrolyzer stack comprising 6 × 100 cm2 membrane electrode assemblies produced CO at a maximum rate of 2,054.5 ml min−1 at 70 A. This study reports an alkaline polymer layer-coated proton-exchange-membrane electrolyzer that enables the co-electrolysis of CO2 and pure water, mitigating salt precipitation and carbon loss. By using an ionomer with a high ion-exchange capacity to optimize the interfacial environment, the system achieves high CO Faradaic efficiency and operational stability, including in scaled-up demonstrations.","PeriodicalId":501699,"journal":{"name":"Nature Chemical Engineering","volume":"3 4","pages":"234-243"},"PeriodicalIF":0.0,"publicationDate":"2026-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147738942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Breaking the selectivity–conductivity trade-off in proton–exchange membranes via H2 mediation","authors":"","doi":"10.1038/s44286-026-00382-3","DOIUrl":"10.1038/s44286-026-00382-3","url":null,"abstract":"The selectivity–conductivity trade-off limits the performance of ion-exchange membranes. Now, a hydrogen-molecule-mediated proton-exchange membrane is developed that uses indirect proton transfer via hydrogen evolution and oxidation. This approach eliminates ionic crossover while maintaining low resistance, as demonstrated in a pH-decoupled rechargeable battery and an electrochemical stack for acid–base generation.","PeriodicalId":501699,"journal":{"name":"Nature Chemical Engineering","volume":"3 4","pages":"206-207"},"PeriodicalIF":0.0,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147738938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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