Abstract
A simple procedure involved the complexing of PdCl2 with sodium citrate followed by ethylene glycol reduction has been employed for the preparation of carbon-supported Pd nanoparticles(Pd/C).The XRD and TEM characterizations indicate that Pd nanoparticles with a small particle size were well-dispersed on carbon support.The mean particle sizes of the Pd/C catalysts were found to be increased from 2.7 to 5.8 nm with heat-treatments at different temperature.The mass activity of the Pd/C catalyst for formic acid electrooxidation increased with the decrease in Pd particle size.However,the specific activity increased with Pd particle size.Furthermore,the Pd/C catalyst with a particle size of ca.3.6 nm exhibited the best stability.
Keywords
Pd/C catalyst, sodium citrate, complex-reduction, formic acid oxidation
Publication Date
2009-11-28
Online Available Date
2009-11-28
Revised Date
2009-11-28
Received Date
2009-11-28
Recommended Citation
Wei HE, Yong-yin KANG, Chong DU, Zhi-qing ZOU, Xiao-gang ZHANG, Hui YANG.
Complex Reduction Preparation of Carbon Supported Pd Nanoparticle Catalyst and its Electrocatalysis for Formic Acid Oxidation[J]. Journal of Electrochemistry,
2009
,
15(4): 382-386.
DOI: 10.61558/2993-074X.2012
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol15/iss4/4
References
[1]Sun S G,Clavilier J,Bewick A.The mechanism ofelectrocatalytic oxidation of formic acid on Pt(100)and Pt(111)in sulphuric acid solution:an EMIRSstudy[J].J Electroanal Chem,1988,240(1/2):147-159.
[2]Zhang L L,Tang Y W,Bao J C,et al.A carbon-sup-ported Pd-P catalyst as the anodic catalyst in a directformic acid fuel cell[J].J Power Sources.2006,162(1):177-179.
[3]Wang J,Kang Y,Yang H,et al.Boron-doped palla-dium nanoparticles on carbon black as a superior cata-lyst for formic acid electro-oxidation[J].J Phys ChemC,2009,113(19):8366-8372.
[4]Hoshi N,Kida K,Nakamura M,et al.Structural effectsof electrochemical oxidation of formic acid on singlecrystal electrodes of palladium[J].J Phys Chem B,2006,110(25):12480-12484.
[5]Park S,Xie Y,Weaver M J.Electrocatalytic pathwayson carbon-supported platinum nanoparticles:Compari-son of particle-size-dependent rates of methanol,formicacid,and formaldehyde electrooxidation[J].Lang-muir,2002,18(15):5792-5798.
[6]Kim J,Jung C,Rhee C K,et al.Electrocatalytic oxi-dation of formic acid and methanol on Pt deposits on Au(111)[J].Langmuir,2007,23(21):10831-10836.
[7]Chen Y(陈滢),Tang Y W(唐亚文),Gao Y(高颖),et al.Electrocatalytic performance of Pd/C catalyst pre-pared with improved liquid phase reduction method foroxidation of formic acid[J].Chinese Journal of Inor-ganic Chemistry(in Chinese).2008,24(4):560-564.
[8]Li HQ,Sun G Q,Jiang QA,et al.Synthesis of highlydispersed Pd/C electro-catalyst with high activity forformic acid oxidation[J].Electrochem Commun,2007,9(6):1410-1415.
[9]Zhu Y,Kang Y,Zou Z,et al.A facile preparation ofcarbon-supported Pd nanoparticles for electrocatalyticoxidation of formic acid[J].Electrochem Commun,2008,10(5):802-805.
[10]Chen Y,Tang Y W,Liu C P,et al.Room tempera-ture preparation of carbon supported Pt-Ru catalysts[J].J Power Sources,2006,161(1):470-473.
[11]Meng H,Sun S,Masse J,et al.Electrosynthesis ofPd single-crystal nanothorns and their application inthe oxidation of formic acid[J].Chem Mater,2008,20(22):6998-7002.
[12]Zhou W J,Lee J Y.Particle size effects in Pd-cata-lyzed electrooxidation of formic acid[J].J Phys ChemC,2008,112(10):3789-3793.
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