典型文献
Platinum on nitrogen doped graphene and tungsten carbide supports for ammonia electro-oxidation reaction
文献摘要：
Ammonia electrooxidation reaction involving multistep electron-proton transfer is a significant reaction for fuel cells,hydrogen production and understanding nitrogen cycle.Platinum has been established as the best electrocatalyst for ammonia oxidation in aqueous alkaline media.In this study,Pt/nitrogen-doped graphene(NDG)and Pt/tungsten monocarbide(WC)/NDG are synthesized by a wet chemistry method and their ammonia oxidation activities are compared to commercial Pt/C.Pt/NDG exhibits a specific activity of 0.472 mA cm2,which is 44％higher than commercial Pt/C,thus establishing NDG as a more effective support than carbon black.Moreover,it is demonstrated that WC as a support also impacts the activity with further 30％increase in comparison to NDG.Surface modification with Ir resulted in the best electro-catalytic activity with Pt-Ir/WC/NDG having almost thrice the current density of commercial Pt/C.This work adds insights regarding the role of NDG and WC as efficient supports along with significant impact of Ir surface modification.
文献关键词：
中图分类号：
作者姓名：
Kumar Siddharth;Yian Wang;Jing Wang;Fei Xiao;Gabriel Sikukuu Nambafu;Usman Bin Shahid;Fei Yang;Ernest Pahuyo Delmo;Minhua Shao
作者机构：
Department of Chemical and Biological Engineering,The Hong Kong University of Science and Technology,Hong Kong,China;Department of Materials Science and Engineering,South University of Science and Technology of China,Shenzhen 518055,China;Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou),The Hong Kong University of Science and Technology,Hong Kong,China;Chinese National Engineering Research Center for Control&Treatment of Heavy Metal Pollution,The Hong Kong University of Science and Technology,Hong Kong,China
文献出处：
引用格式：
[1]Kumar Siddharth;Yian Wang;Jing Wang;Fei Xiao;Gabriel Sikukuu Nambafu;Usman Bin Shahid;Fei Yang;Ernest Pahuyo Delmo;Minhua Shao-.Platinum on nitrogen doped graphene and tungsten carbide supports for ammonia electro-oxidation reaction)[J].化学科学与工程前沿,2022(06):930-938
A类：
monocarbide
B类：
Platinum,nitrogen,doped,graphene,tungsten,supports,ammonia,reaction,Ammonia,electrooxidation,involving,multistep,electron,proton,transfer,significant,fuel,cells,hydrogen,production,understanding,cycle,has,been,established,best,electrocatalyst,aqueous,alkaline,media,In,this,study,Pt,NDG,WC,synthesized,by,wet,chemistry,method,their,activities,compared,commercial,exhibits,specific,activity,mA,which,higher,than,thus,establishing,more,effective,carbon,black,Moreover,demonstrated,that,also,impacts,further,increase,comparison,Surface,modification,Ir,resulted,catalytic,having,almost,thrice,current,density,This,work,adds,insights,regarding,role,efficient,along,surface
AB值：
0.535815
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