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Low‐Load Pt Nanoclusters Anchored on Graphene Hollow Spheres for Efficient Hydrogen Evolution
Author(s) -
Fan Chuang,
Jiang Xian,
Chen Jiangyue,
Wang Xu,
Qian Shiyun,
Zhao Chenzhang,
Ding Linfei,
Sun Dongmei,
Tang Yawen
Publication year - 2021
Publication title -
small structures
Language(s) - English
Resource type - Journals
ISSN - 2688-4062
DOI - 10.1002/sstr.202000017
Subject(s) - nanoclusters , catalysis , electrocatalyst , materials science , graphene , electrochemistry , nanotechnology , hydrogen production , chemical engineering , water splitting , chemistry , electrode , organic chemistry , photocatalysis , engineering
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.