{"title":"铂单原子满足金属有机框架，提高电催化析氢活性†","authors":"Jingting Zhu, Yingqian Cen, Haibin Ma, Weiguang Lian, Jidong Liu, Haohui Ou, Fangping Ouyang, Lifu Zhang and Wenjing Zhang","doi":"10.1039/D3NH00159H","DOIUrl":null,"url":null,"abstract":"<p >The electrochemical hydrogen evolution reaction (HER) effectively produces clean, renewable, and sustainable hydrogen; however, the development of efficient electrocatalysts is required to reduce the high energy barrier of the HER. Herein, we report two excellent single-atom (SA)/metal–organic framework (MOF) composite electrocatalysts (Pt<small><sub>SA</sub></small>-MIL100(Fe) and Pt<small><sub>SA</sub></small>-MIL101(Cr)) for HER. The obtained Pt<small><sub>SA</sub></small>-MIL100(Fe) and Pt<small><sub>SA</sub></small>-MIL101(Cr) electrocatalysts exhibit overpotentials of 60 and 61 mV at 10 mA cm<small><sup>−2</sup></small>, respectively, which are close to that of commercial Pt/C (38 mV); they exhibit overpotentials of 310 and 288 mV at 200 mA cm<small><sup>−2</sup></small>, respectively, which are comparable to that of commercial Pt/C (270 mV). Theoretical simulations reveal that Pt SAs modulate the electronic structures of the MOFs, leading to the optimization of the binding strength for H* and significant enhancement of the HER activity. This study describes a novel strategy for preparing desirable HER electrocatalysts based on the synergy between SAs and MIL-series MOFs. Using MIL-series MOFs to support SAs could be valuable for future catalyst design.</p>","PeriodicalId":93,"journal":{"name":"Nanoscale Horizons","volume":" 9","pages":" 1273-1281"},"PeriodicalIF":6.6000,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Pt single atoms meet metal–organic frameworks to enhance electrocatalytic hydrogen evolution activity†\",\"authors\":\"Jingting Zhu, Yingqian Cen, Haibin Ma, Weiguang Lian, Jidong Liu, Haohui Ou, Fangping Ouyang, Lifu Zhang and Wenjing Zhang\",\"doi\":\"10.1039/D3NH00159H\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >The electrochemical hydrogen evolution reaction (HER) effectively produces clean, renewable, and sustainable hydrogen; however, the development of efficient electrocatalysts is required to reduce the high energy barrier of the HER. Herein, we report two excellent single-atom (SA)/metal–organic framework (MOF) composite electrocatalysts (Pt<small><sub>SA</sub></small>-MIL100(Fe) and Pt<small><sub>SA</sub></small>-MIL101(Cr)) for HER. The obtained Pt<small><sub>SA</sub></small>-MIL100(Fe) and Pt<small><sub>SA</sub></small>-MIL101(Cr) electrocatalysts exhibit overpotentials of 60 and 61 mV at 10 mA cm<small><sup>−2</sup></small>, respectively, which are close to that of commercial Pt/C (38 mV); they exhibit overpotentials of 310 and 288 mV at 200 mA cm<small><sup>−2</sup></small>, respectively, which are comparable to that of commercial Pt/C (270 mV). Theoretical simulations reveal that Pt SAs modulate the electronic structures of the MOFs, leading to the optimization of the binding strength for H* and significant enhancement of the HER activity. This study describes a novel strategy for preparing desirable HER electrocatalysts based on the synergy between SAs and MIL-series MOFs. Using MIL-series MOFs to support SAs could be valuable for future catalyst design.</p>\",\"PeriodicalId\":93,\"journal\":{\"name\":\"Nanoscale Horizons\",\"volume\":\" 9\",\"pages\":\" 1273-1281\"},\"PeriodicalIF\":6.6000,\"publicationDate\":\"2023-07-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nanoscale Horizons\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://pubs.rsc.org/en/content/articlelanding/2023/nh/d3nh00159h\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nanoscale Horizons","FirstCategoryId":"88","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2023/nh/d3nh00159h","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
摘要
电化学析氢反应(HER)能有效生产清洁、可再生、可持续的氢气;然而，为了降低HER的高能量势垒，需要开发高效的电催化剂。在此，我们报道了两种优秀的单原子(SA)/金属有机框架(MOF)复合电催化剂PtSA-MIL100(Fe)和PtSA-MIL101(Cr)。所制得的PtSA-MIL100(Fe)和PtSA-MIL101(Cr)电催化剂在10 mA cm−2下的过电位分别为60和61 mV，接近商用Pt/C的过电位(38 mV);在200 mA cm - 2下，它们分别表现出310和288 mV的过电位，这与商业Pt/C (270 mV)相当。理论模拟表明，Pt - sa可以调节mof的电子结构，从而优化了H*的结合强度，显著提高了HER活性。本研究描述了一种基于sa和mil系列mof的协同作用制备理想HER电催化剂的新策略。使用mil系列mof来支持sa可能对未来的催化剂设计有价值。
Pt single atoms meet metal–organic frameworks to enhance electrocatalytic hydrogen evolution activity†
The electrochemical hydrogen evolution reaction (HER) effectively produces clean, renewable, and sustainable hydrogen; however, the development of efficient electrocatalysts is required to reduce the high energy barrier of the HER. Herein, we report two excellent single-atom (SA)/metal–organic framework (MOF) composite electrocatalysts (PtSA-MIL100(Fe) and PtSA-MIL101(Cr)) for HER. The obtained PtSA-MIL100(Fe) and PtSA-MIL101(Cr) electrocatalysts exhibit overpotentials of 60 and 61 mV at 10 mA cm−2, respectively, which are close to that of commercial Pt/C (38 mV); they exhibit overpotentials of 310 and 288 mV at 200 mA cm−2, respectively, which are comparable to that of commercial Pt/C (270 mV). Theoretical simulations reveal that Pt SAs modulate the electronic structures of the MOFs, leading to the optimization of the binding strength for H* and significant enhancement of the HER activity. This study describes a novel strategy for preparing desirable HER electrocatalysts based on the synergy between SAs and MIL-series MOFs. Using MIL-series MOFs to support SAs could be valuable for future catalyst design.
期刊介绍：
Nanoscale Horizons stands out as a premier journal for publishing exceptionally high-quality and innovative nanoscience and nanotechnology. The emphasis lies on original research that introduces a new concept or a novel perspective (a conceptual advance), prioritizing this over reporting technological improvements. Nevertheless, outstanding articles showcasing truly groundbreaking developments, including record-breaking performance, may also find a place in the journal. Published work must be of substantial general interest to our broad and diverse readership across the nanoscience and nanotechnology community.
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