Yi Hu, Jingsong Xu, Tianzhu Zhang, Hang Zhong, Jun Chen, Xinai Liu, Qifa Pan, Ruidong Liu, Chunli Jiang, Jun Chen
{"title":"镍泡沫上共电沉积Ni- la涂层的电催化析氢反应","authors":"Yi Hu, Jingsong Xu, Tianzhu Zhang, Hang Zhong, Jun Chen, Xinai Liu, Qifa Pan, Ruidong Liu, Chunli Jiang, Jun Chen","doi":"10.1007/s11243-023-00529-8","DOIUrl":null,"url":null,"abstract":"<div><p>Electrocatalytic water splitting to produce hydrogen is a promising route to provide green hydrogen on a large scale. To explore non-noble metal electrocatalysts with high performance is still a challenge. Herein, a one-step electrodeposition way is developed to construct the heterostructural (NiO-La<sub>2</sub>O<sub>3</sub>)/(Ni-La)/NiO/Ni electrocatalysts on Ni foam. The dark Ni-La coating was prepared by co-electrodeposition from an aqueous solution containing LaCl<sub>3</sub> and NiCl<sub>2</sub> with a molar concentration ratio of 1:5. Among these heterostructural Ni-based electrocatalysts, an excellent HER activity is achieved: an overpotential of 22 mV at the current density of 10 mA cm<sup>−2</sup> in 1 M KOH solution. It is demonstrated that the introduction of La significantly reduces the overpotential for HER. The higher the La content in the Ni-La coating of these electrocatalysts, the better the electrocatalytic HER performance was exhibited. This work provides a facile and inexpensive route to prepare Ni-La coating on electrodes in an aqueous solution.</p></div>","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2023-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11243-023-00529-8.pdf","citationCount":"0","resultStr":"{\"title\":\"Co-electrodeposition of Ni-La coating on Ni foam for electrocatalytic hydrogen evolution reaction\",\"authors\":\"Yi Hu, Jingsong Xu, Tianzhu Zhang, Hang Zhong, Jun Chen, Xinai Liu, Qifa Pan, Ruidong Liu, Chunli Jiang, Jun Chen\",\"doi\":\"10.1007/s11243-023-00529-8\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Electrocatalytic water splitting to produce hydrogen is a promising route to provide green hydrogen on a large scale. To explore non-noble metal electrocatalysts with high performance is still a challenge. Herein, a one-step electrodeposition way is developed to construct the heterostructural (NiO-La<sub>2</sub>O<sub>3</sub>)/(Ni-La)/NiO/Ni electrocatalysts on Ni foam. The dark Ni-La coating was prepared by co-electrodeposition from an aqueous solution containing LaCl<sub>3</sub> and NiCl<sub>2</sub> with a molar concentration ratio of 1:5. Among these heterostructural Ni-based electrocatalysts, an excellent HER activity is achieved: an overpotential of 22 mV at the current density of 10 mA cm<sup>−2</sup> in 1 M KOH solution. It is demonstrated that the introduction of La significantly reduces the overpotential for HER. The higher the La content in the Ni-La coating of these electrocatalysts, the better the electrocatalytic HER performance was exhibited. This work provides a facile and inexpensive route to prepare Ni-La coating on electrodes in an aqueous solution.</p></div>\",\"PeriodicalId\":1,\"journal\":{\"name\":\"Accounts of Chemical Research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":16.4000,\"publicationDate\":\"2023-04-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://link.springer.com/content/pdf/10.1007/s11243-023-00529-8.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Accounts of Chemical Research\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11243-023-00529-8\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s11243-023-00529-8","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
摘要
电催化水裂解制氢是一种很有前途的大规模提供绿色氢的途径。开发高性能的非贵金属电催化剂仍然是一个挑战。本文采用一步电沉积的方法在泡沫镍上制备了异质结构(NiO- la2o3)/(Ni- la)/NiO/Ni电催化剂。在LaCl3和NiCl2摩尔浓度比为1:5的水溶液中，采用共电沉积法制备了深色Ni-La涂层。在这些异质结构镍基电催化剂中，取得了优异的HER活性:在1 M KOH溶液中，电流密度为10 mA cm−2时，过电位为22 mV。结果表明，La的引入显著降低了HER的过电位。这些电催化剂的Ni-La涂层中La含量越高，电催化HER性能越好。这项工作为在水溶液中制备电极Ni-La涂层提供了一种简单而廉价的方法。
Co-electrodeposition of Ni-La coating on Ni foam for electrocatalytic hydrogen evolution reaction
Electrocatalytic water splitting to produce hydrogen is a promising route to provide green hydrogen on a large scale. To explore non-noble metal electrocatalysts with high performance is still a challenge. Herein, a one-step electrodeposition way is developed to construct the heterostructural (NiO-La2O3)/(Ni-La)/NiO/Ni electrocatalysts on Ni foam. The dark Ni-La coating was prepared by co-electrodeposition from an aqueous solution containing LaCl3 and NiCl2 with a molar concentration ratio of 1:5. Among these heterostructural Ni-based electrocatalysts, an excellent HER activity is achieved: an overpotential of 22 mV at the current density of 10 mA cm−2 in 1 M KOH solution. It is demonstrated that the introduction of La significantly reduces the overpotential for HER. The higher the La content in the Ni-La coating of these electrocatalysts, the better the electrocatalytic HER performance was exhibited. This work provides a facile and inexpensive route to prepare Ni-La coating on electrodes in an aqueous solution.
期刊介绍：
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
