电化学2019，Vol.25Issue(5)：589-600,12.DOI:10.13208/j.electrochem.181145
不同结构及氮掺杂NiO/rGO氧还原催化剂的制备与性能研究
Influences of Morphology and Nitrogen Doping on the Electrocatalytic Characteristics for Oxygen Reduction Reaction of NiO/rGO
摘要
Abstract
In this research,the reduced graphene oxide (rGO) supported sheet-like NiO (NiO/rGO) and spherical-like NiO (NiO/N-rG-O) catalysts for oxygen reduction reaction (ORR) were prepared.The structures,morphologies and chemical states of the two catalysts were characterized by X-ray diffraction (XRD),Raman spectroscopy,X-ray photoelectron spectroscopy (XPS),scanning electron microscopy (SEM) and transmission electron microscopy (TEM).The electrochemical catalytic performance of the two catalysts for ORR were investigated by cyclic voltammetry (CV),Tafel,linear sweeping voltammetry (LSV),rotating disc electrode (RDE) and rotating ring disc electrode (RRDE) tests.Electrochemical results showed that the current density and onset potential (about 0.89 V) of nitrogen doped rGO (N-rGO) supported spherical-like NiO were close to those of commercial Pt/C(20％)catalysts.RDE and RRDE data proved that the ORR happened mainly through 4-electron route in an alkaline electrolyte with both catalysts.The spherical-like NiO/N-rGO catalyst showed great promise as alternative for Pt-based catalyst.关键词
NiO/氮掺杂/形态结构差异/催化剂/氧还原反应Key words
nickel oxide/nitrogen doping/morphology/catalyst/oxygen reduction reaction分类
化学化工引用本文复制引用
梁栋,房恒义,姚硕,于洁玫,张昭良,姜占坤,高学平,黄太仲..不同结构及氮掺杂NiO/rGO氧还原催化剂的制备与性能研究[J].电化学,2019,25(5):589-600,12.基金项目
Financial support for this work was provided by the Shandong Natural Science Foundation (No.ZR2018MB036 and ZR2017QB009),Science Development Project of Shandong Provincial (2017GGX40115 and 2016GGX102038),Project of Shandong Province Higher Educational Science and Technology Program (J17KA094,J13LD08),Scientific research fund of University of Jinan (XBS1644). （No.ZR2018MB036 and ZR2017QB009）
