文献类型：期刊文献

中文题名：Platelet carbon nanofibers as support of Pt-CoO electrocatalyst for superior hydrogen evolution

作者：Jie Gan[1];Zikun Huang[1];Wei Luo[1];Wenyao Chen[1];Yueqiang Cao[1];Gang Qian[1];Xinggui Zhou[1];Xuezhi Duan[1]

机构：[1]State Key Laboratory of Chemical Engineering,School of Chemical Engineering,East China University of Science and Technology,Shanghai 200237,China

年份：2021

卷号：30

期号：1

起止页码：33

中文期刊名：Journal of Energy Chemistry

外文期刊名：能源化学（英文版）

收录：CSTPCD;;Scopus;CSCD:【CSCD2021_2022】；

基金：financially supported by the National Natural Science Foundation of China (21922803 and 21776077);the Shanghai Natural Science Foundation (17ZR1407300 and 17ZR1407500);the Program for the Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning;the Shanghai Rising-Star Program (17QA1401200);the State Key Laboratory of Organic-Inorganic Composites (oic-201801007);the Open Project of State Key Laboratory of Chemical Engineering (SKLChe15C03)。

语种：英文

中文关键词：Hydrogen evolution;Electrocatalysts;Platelet carbon nanofibers;Pt-CoO catalyst;Atomic layer deposition

摘要：Exploration of cost-effective Pt/C catalysts has been a significant issue for electrochemical hydrogen evolution reaction(HER) toward sustainable energy conversion and storage.Herein,we report a fabrication strategy by employing platelet carbon nanofibers(p-CNF) as the support to immobilize Pt-CoO HER electrocatalyst using atomic layer deposition method.The edge-rich p-CNF support is found to act as the anchoring sites of Pt nanoparticles and favorably capture electrons from Pt to yield electron-deficient Pt surfaces for the boosted HER.Additionally,the sequential growth of CoO onto the Pt/p-CNF catalyst elaborately constructs the Pt-CoO interface and facilitates the electron transfer from Pt to CoO,which further enhances the HER activity.These advantages endow the fabricated Pt-CoO/p-CNF catalyst with the superior HER activity,e.g.,a very low overpotential of 26 mV at the current density of 10 mA·cm-2 and a mass activity of 4.42 A·mgPt-1at the overpotential of 30 mV,18.8 times higher than that of the commercial20 wt% Pt/C catalyst.The insights reported here could shed light on for the fabrication of cost-effective Pt-based composite HER catalysts.