Ni-Co Oxides/Graphene Nanocomposites as Oxygen Evolution Reaction Electrocatalysts in Alkaline Media
详细信息 查看官网全文
- 英文论文题名：Ni-Co Oxides/Graphene Nanocomposites as Oxygen Evolution Reaction Electrocatalysts in Alkaline Media
- 论文作者：Yuan Liu ; Jinlin Tong ; Qi Peng ; Wei Hu
- 英文论文作者：Yuan Liu ; Jinlin Tong ; Qi Peng ; Wei Hu ; Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials ; Ministryof Education Key Laboratory for the Synthesis and Applications of Organic Functional Molecules ; Hubei University
- 年：2016
- 作者机构：Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials,Ministryof Education Key Laboratory for the Synthesis and Applications of Organic Functional Molecules,Hubei University;
- 英文论文关键词：Oxygen evolution reaction ; Ni-Co oxide ; graphene oxide ; water electrolysis
- 会议召开时间：2016-09-23
- 会议录名称：中部四省化学化工学会2016年学术年会摘要集
- 语种：英文
- 分类号：TB332;O643.36
- 学会代码：JXHX
- 会议名称：中部四省化学化工学会2016年学术年会
- 会议地点：中国江西南昌
- 主办单位：中国化学会湖北代表处
- 学会名称：江西省化学化工学会
- 页数：1
- 文件大小：232k
- 原文格式：D
- 会议级别：地方
摘要
As earth-abundant,low-cost,and environment-friendly materials,nickel and cobalt oxides have widely been explored as electrocatalysts for the oxygen reduction/evolution reaction(ORR/OER) in energy conversion and storage devices~([1,2]).However,the insufficient electrical conductivity and low reactive surface areas of the pure cobalt or nickel oxides result in sluggishoxygen reactive kinetics~([3]).Supporting Co and/or Ni oxides on grapheneis an effective way to improve catalytic activitiesdue to the high surface area and excellent electrical conductivity advantages of graphene,thereby increasing number of activesites and promoting the charge transfer efficiency in electrodes~([4]).In this work,we synthesized Co_3O_4 and NiCo_2O_4 supported on the surface of reduced graphene oxide(RGO) composite catalysts via a pyrolysis of graphene oxide-supported cobalt and/or nickel salts,respectively.The possible synergetic effect among the transition metal oxides and RGO makes them simultaneously highly active for the OER(Fig.1).
As earth-abundant,low-cost,and environment-friendly materials,nickel and cobalt oxides have widely been explored as electrocatalysts for the oxygen reduction/evolution reaction(ORR/OER) in energy conversion and storage devices~([1,2]).However,the insufficient electrical conductivity and low reactive surface areas of the pure cobalt or nickel oxides result in sluggishoxygen reactive kinetics~([3]).Supporting Co and/or Ni oxides on grapheneis an effective way to improve catalytic activitiesdue to the high surface area and excellent electrical conductivity advantages of graphene,thereby increasing number of activesites and promoting the charge transfer efficiency in electrodes~([4]).In this work,we synthesized Co_3O_4 and NiCo_2O_4 supported on the surface of reduced graphene oxide(RGO) composite catalysts via a pyrolysis of graphene oxide-supported cobalt and/or nickel salts,respectively.The possible synergetic effect among the transition metal oxides and RGO makes them simultaneously highly active for the OER(Fig.1).
As earth-abundant,low-cost,and environment-friendly materials,nickel and cobalt oxides have widely been explored as electrocatalysts for the oxygen reduction/evolution reaction(ORR/OER) in energy conversion and storage devices~([1,2]).However,the insufficient electrical conductivity and low reactive surface areas of the pure cobalt or nickel oxides result in sluggishoxygen reactive kinetics~([3]).Supporting Co and/or Ni oxides on grapheneis an effective way to improve catalytic activitiesdue to the high surface area and excellent electrical conductivity advantages of graphene,thereby increasing number of activesites and promoting the charge transfer efficiency in electrodes~([4]).In this work,we synthesized Co_3O_4 and NiCo_2O_4 supported on the surface of reduced graphene oxide(RGO) composite catalysts via a pyrolysis of graphene oxide-supported cobalt and/or nickel salts,respectively.The possible synergetic effect among the transition metal oxides and RGO makes them simultaneously highly active for the OER(Fig.1).
引文
[1]K.Fominykh,J.M.Feckl,J.Sicklinger et al.,Adv.Funct.Mater.2014,24,3123.
[2]D.Wang,G.Ghirlanda,J.P.Allen,J.Am.Chem.Soc.2014,136,10198.
[3]S.J.Guo,S.Zhang,L.H.Wu et al.,Angew.Chem.Int.Ed.2012,51,11770.
[4]X.Liu,W.Liu,M.Koet al.,Adv.Funct.Mater.2015,25,5799.
[2]D.Wang,G.Ghirlanda,J.P.Allen,J.Am.Chem.Soc.2014,136,10198.
[3]S.J.Guo,S.Zhang,L.H.Wu et al.,Angew.Chem.Int.Ed.2012,51,11770.
[4]X.Liu,W.Liu,M.Koet al.,Adv.Funct.Mater.2015,25,5799.