Trace Pd modified intermetallic PtBi nanoplates towards efficient formic acid electrocatalysis

Tang，Min; Chen，Wen; Luo，Shuiping; Wu，Xiaotong; Fan，Xiaokun; Liao，Yujia; Song，Xing; Cheng，Yu; Li，Lanxi; Tan，Li; Liu，Yulian; Quan，Zewei

2021-04-21

10.1039/d1ta01123e

Journal of Materials Chemistry A   影响因子和分区

2050-7488

2050-7496

Promoting formic acid electrochemical oxidation through the dehydrogenation path is critical for the development of direct liquid fuel cells. Herein, we report the modification of intermetallic PtBi hexagonal nanoplates by depositing trace amounts of Pd atoms (PtBi@1.8% Pd HNPs) to obviously improve the selectivity of the dehydrogenation path instead of the dehydration path, achieving highly efficient formic acid electrocatalysis. Impressively, PtBi@1.8% Pd exhibits superior mass activity of 4.17 A mg, which is 27 and 9.6 times higher than that of commercial Pt/C and Pd black catalysts, respectively. During chronoamperometry measurements, PtBi@1.8% Pd maintains much higher mass activity than the benchmark catalysts. The excellent electrocatalytic performances are attributed to the synergetic effect between the tensile-strained/electronic-modified Pd and the electronic-modified intermetallic PtBi, providing a novel co-modification strategy to boost electrocatalysis.

SCI ; EI

英语

第一 ; 通讯

WOS:000637061200001

20211710250149

Binary alloys ; Bismuth alloys ; Catalysis ; Catalyst activity ; Chronoamperometry ; Dehydrogenation ; Electrocatalysis ; Electrochemical oxidation ; Formic acid ; Fuel cells ; Intermetallics ; Nanostructures ; Palladium

Metallurgy:531.1 ; Precious Metals:547.1 ; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Fuel Cells:702.2 ; Nanotechnology:761 ; Electrochemistry:801.4.1 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Organic Compounds:804.1 ; Solid State Physics:933

2-s2.0-85104547101

Scopus

Department of Chemistry,Guangdong Provincial Key Laboratory of Energy Materials for Electric Power,Southern University of Science and Technology (SUSTech),Shenzhen,518055,China

Tang，Min,Chen，Wen,Luo，Shuiping,et al. Trace Pd modified intermetallic PtBi nanoplates towards efficient formic acid electrocatalysis[J]. Journal of Materials Chemistry A,2021,9(15):9602-9608.

Tang，Min.,Chen，Wen.,Luo，Shuiping.,Wu，Xiaotong.,Fan，Xiaokun.,...&Quan，Zewei.(2021).Trace Pd modified intermetallic PtBi nanoplates towards efficient formic acid electrocatalysis.Journal of Materials Chemistry A,9(15),9602-9608.

Tang，Min,et al."Trace Pd modified intermetallic PtBi nanoplates towards efficient formic acid electrocatalysis".Journal of Materials Chemistry A 9.15(2021):9602-9608.