Ternary PtPdCu Multicubes as a Highly Active and Durable Catalyst toward the Oxygen Reduction Reaction

An, Hong Ming1,2; Zhao, Zhi Liang1,3; Wang, Qi4; Zhang, Lian Ying5; Gu, Meng4; Li, Chang Ming1,3

2018-05

10.1002/celc.201800202

ChemElectroChem   影响因子和分区

2196-0216

It has been reported that a Pt-based concave-convex structure offers good electrocatalytic activity toward the oxygen reduction reaction (ORR). Herein, we synthesize ternary PtPdCu multicubes with a hierarchical trepanning concave-convex structure by a facile solvothermal co-reduction method. By tailoring the elementary composition, the optimal Pt45Pd30Cu25/C catalyst results in a 2.35-fold increase in ORR mass activity compared to commercial Pt/C and an excellent long-term stability. Investigation reveals that the performance enhancement mechanism is mainly caused by the Pd and Cu jointly modified electronic structure of Pt, which facilitates the charge transfer rate as well as the increased number of active sites and improved mass transport by the unique porous multicube concave-convex structure. Both experiment and theoretical calculations reveal that the three-elements alloy catalyst and the unique structures play a critical role in high catalytic performance, thus offering guidance to design high-performance electrocatalysts not only toward the ORR for practical applications in low-temperature fuel cells, but also for other energy conversion systems rendering a universal significance.

ternary porous concave-convex multicubes structure oxygen reduction reaction proton-exchange membrane fuel cells

SCI ; EI

英语

其他

Chongqing Science and Technology Commission (Chongqing, China)[cstc2011pt-sy90001] ; Chongqing Science and Technology Commission (Chongqing, China)[cstc2012gjhz90002]

Electrochemistry

Electrochemistry

WOS:000431974500002

WILEY-V C H VERLAG GMBH

20181104912537

Catalyst activity ; Charge transfer ; Copper alloys ; Electrocatalysts ; Electrolytic reduction ; Electronic structure ; Energy conversion ; Oxygen ; Palladium alloys ; Proton exchange membrane fuel cells (PEMFC) ; Temperature ; Ternary alloys

Energy Conversion Issues:525.5 ; Copper Alloys:544.2 ; Precious Metals:547.1 ; Thermodynamics:641.1 ; Fuel Cells:702.2 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804

Web of Science

1.Southwest Univ, Chongqing Key Lab Adv Mat & Technol Clean Energie, Fac Mat & Energy, Chongqing 400715, Peoples R China
2.China Aerosp Sci & Ind Corp, Guizhou Aerosp Elect Co Ltd, Guiyang 550009, Guizhou, Peoples R China
3.Suzhou Univ Sci & Technol, Inst Mat Sci & Devices, Suzhou 215009, Peoples R China
4.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
5.Qingdao Univ, Inst Mat Energy & Environm, Qingdao 266071, Peoples R China

An, Hong Ming,Zhao, Zhi Liang,Wang, Qi,et al. Ternary PtPdCu Multicubes as a Highly Active and Durable Catalyst toward the Oxygen Reduction Reaction[J]. ChemElectroChem,2018,5(10):1345-1349.

An, Hong Ming,Zhao, Zhi Liang,Wang, Qi,Zhang, Lian Ying,Gu, Meng,&Li, Chang Ming.(2018).Ternary PtPdCu Multicubes as a Highly Active and Durable Catalyst toward the Oxygen Reduction Reaction.ChemElectroChem,5(10),1345-1349.

An, Hong Ming,et al."Ternary PtPdCu Multicubes as a Highly Active and Durable Catalyst toward the Oxygen Reduction Reaction".ChemElectroChem 5.10(2018):1345-1349.