纳米团簇
催化作用
电催化剂
材料科学
石墨烯
电化学
纳米技术
制氢
化学工程
分解水
化学
电极
有机化学
物理化学
光催化
工程类
作者
Chuang Fan,Xian Jiang,Jiangyue Chen,Xu Wang,Shiyun Qian,Chenzhang Zhao,Linfei Ding,Dongmei Sun,Yawen Tang
标识
DOI:10.1002/sstr.202000017
摘要
Efficient water splitting through electrocatalysis has been studied extensively in modern energy devices, whereas the development of catalysts with high activity and stability with low‐load Pt is still a great challenge. Through the spatial confinement effect and template method, herein, hollow graphene spheres with functionalized Pt nanoclusters (Pt/GHSs) are constructed and developed as effective electrocatalysts for the hydrogen evolution reaction (HER). Electrochemical tests show that Pt/GHSs exhibit a high electrocatalytic activity and stability compared with commercial Pt/C catalysts toward HER in alkaline media. The electric double‐layer capacitance value reaches 26.0 mF cm −2 , indicating that Pt/GHSs have a large electrochemically active area. Meanwhile, the load of metal Pt in the Pt/GHSs is only one‐fifth of commercial Pt/C catalysts, which significantly reduces the production cost of the catalyst. Herein a new opportunity for the low‐cost mass production of efficient and stable catalysts for practical applications is provided.
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