Nature synthesisPub Date : 2026-10-22DOI: 10.1038/s44160-026-01204-3
Yoon Jung, Jaeho Moon, Jaehyuk Shim, Sein Hwang, Seong-Uk Bang, Sungeun Heo, Hyunsoo Ahn, Seungwoo Yoo, Dongho Shin, Sung Eun Chun, Megalamane S. Bootharaju, Jaeyune Ryu, Do Heui Kim, Sung-Pyo Cho, Yung-Eun Sung, Minho Kim, Taeghwan Hyeon, Byoung-Hoon Lee
{"title":"Durable, highly loaded atomically dispersed catalysts via a reticular coordination strategy","authors":"Yoon Jung, Jaeho Moon, Jaehyuk Shim, Sein Hwang, Seong-Uk Bang, Sungeun Heo, Hyunsoo Ahn, Seungwoo Yoo, Dongho Shin, Sung Eun Chun, Megalamane S. Bootharaju, Jaeyune Ryu, Do Heui Kim, Sung-Pyo Cho, Yung-Eun Sung, Minho Kim, Taeghwan Hyeon, Byoung-Hoon Lee","doi":"10.1038/s44160-026-01204-3","DOIUrl":"https://doi.org/10.1038/s44160-026-01204-3","url":null,"abstract":"Developing catalysts that can support high metal loadings (>10 wt%) that are resistant to sintering under harsh reaction conditions remains a fundamental challenge. Here we present a reticular coordination strategy to maximize precious metal utilization where Pt atoms are anchored onto Ce-oxo clusters within metal–organic frameworks and then converted into PtRC/CeOx (where RC denotes reticular coordination) by calcination, yielding catalysts with high atomic dispersion (14.9 wt%). Upon high-temperature (>300 °C) treatment under H2, the isolated Pt species do not undergo uncontrolled sintering; instead, their migration is suppressed after limited restructuring into flat, strongly confined ultrasmall clusters. Using the treated material (0.15 mgPt cm‒2) in proton exchange membrane water electrolysers results in a degradation rate of 25 μV h‒1, which outperforms 40 wt% Pt/C (106 μV h‒1 at 0.40 mgPt cm‒2) and retains its structural integrity after 500 h at 1 A cm‒2.","PeriodicalId":74251,"journal":{"name":"Nature synthesis","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149241767","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}
Nature synthesisPub Date : 2026-10-19DOI: 10.1038/s44160-026-01178-2
Sanjay Singh, Tobias Randt, Hendrik F. T. Klare, Martin Oestreich
{"title":"Stepwise and chemoselective installation of carbon substituents at silicon atoms via monobromination of hydrosilanes","authors":"Sanjay Singh, Tobias Randt, Hendrik F. T. Klare, Martin Oestreich","doi":"10.1038/s44160-026-01178-2","DOIUrl":"https://doi.org/10.1038/s44160-026-01178-2","url":null,"abstract":"Although organosilicon compounds containing different carbon substituents are ubiquitous in synthetic chemistry, their preparation is challenging. Laboratory synthesis commonly relies on the sequential substitution of tetrachlorosilane or tetraalkoxysilanes, producing complex mixtures that require demanding purification. This arises from limited control over nucleophilic substitution in functionalized silanes containing three or four (identical) leaving groups. Here we introduce an experimentally straightforward and reliable procedure for the preparation of both hetero- and homoleptic silanes using an overlooked monobromination of primary and secondary hydrosilanes. An equimolar amount of elemental bromine converts a Si–H bond into an Si–Br bond without ‘overbromination’. This step also shows exceptional functional-group tolerance to existing substituents at the silicon atom. Unsaturated moieties as well as heteroatom and heteroaryl groups are compatible. When performed in an iterative fashion, multihydrosilanes can be selectively converted into secondary, tertiary and quaternary silanes with two, three or four different carbon substituents in high yields. These functionalized silicon building blocks are relevant to synthetic chemistry as well as applied chemistry materials.","PeriodicalId":74251,"journal":{"name":"Nature synthesis","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149218191","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}