Synergistic effect between Co single atoms and Pt nanoparticles for efficient alkaline hydrogen evolution

作     者：Chengyong Shu Jingwen Cao Zhuofan Gan Peixi Qiu Zhixu Chen Lian Guanwu Zhongxin Chen Chengwei Deng Wei Tang Chengyong Shu;Jingwen Cao;Zhuofan Gan;Peixi Qiu;Zhixu Chen;Lian Guanwu;Zhongxin Chen;Chengwei Deng;Wei Tang

作者机构：School of Chemical Engineering and TechnologyXi’an Jiaotong UniversityXi’an 710049People’s Republic of China School of Science and EngineeringThe Chinese University of Hong KongShenzhenGuangdong 518172People’s Republic of China State Key Laboratory of Space Power-Sources TechnologyShanghai Institute of Space Power SourcesShanghai 200245People’s Republic of China 

出 版 物：《Materials Futures》 (材料展望（英文）)

年 卷 期：2024年第3卷第3期

页      面：111-120页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：support from the National Natural Science Foundation of China(22379120,22350410375) the University Development Fund,Research Start-up Fund(UDF01002976)from the Chinese University of Hong Kong(Shenzhen) the Higher Education Institution Academic Discipline Innovation and Talent Introduction Plan(111 Plan)(No.B23025) the Shenzhen Science and Technology Program(JCYJ20230807114302005) the China Postdoctoral Science Foundation(2020M673408) 

主　　题：synergistic catalysis single atom catalysts alkaline water splitting flow electrolyser hydrogen evolution 

摘      要：In the pursuit of sustainable energy solutions,the efficiency of the hydrogen evolution reaction(HER)in alkaline conditions has been a significant challenge,primarily due to the sluggish dissociation of water molecules on platinum(Pt)*** this critical issue,our study introduces an innovative Pt-Co@NCS *** catalyst synergistically combines Pt nanoparticles with Co single atoms on a nitrogen-doped carbon scaffold,overcoming the traditional bottleneck of slow water *** unique porous concave structure and nitrogen-enriched surface not only provide abundant anchoring sites for Co atoms but also create a conducive hydrophilic environment around the Pt *** design leads to a drastic improvement in the water dissociation process,as demonstrated by CO stripping and deuterium labeling *** an outstanding current density of 162.8 mA cm^(−2) at−0.1 V versus RHE,a Tafel slope of 26.2 mV dec^(−1),and a superior nominal mass activity of 15.75 mAμgPt^(−1),the Pt-Co@NCS catalyst represents a significant step forward in enhancing alkaline HER efficiency,indicating promising advancements in the field.