Journal
APPLIED CATALYSIS B-ENVIRONMENTAL
Volume 257, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.apcatb.2019.117847
Keywords
Nano catalyst; NiPdPt; EOR; Power density; Products analysis
Funding
- Central of Scientific and Industrial Research (CSIR), New Delhi, India
- CTI Swiss Competence Center for Energy Research (SCCER Heat and Electricity Storage) projects at Department of Chemistry and Biochemistry, University of Bern, Bern, Switzerland
- Swiss National Science Foundation [200020-172507]
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The present investigations explore the important contribution of transitional metal/metal oxide/hydroxide in ternary alloys of Ni, Pd, and Pt NPs for boosting the EOR in alkaline DEFCs. A facile one-pot synthesis method is employed to prepare ultra small ternary nano-alloy catalysts. The impact of Ni/NiO /Ni(OH)(2) species in EOR on Pd/Pd catalyst is strongly recognized by the diminution of overvoltage similar to 546 mV in case of the multi metallic surface. The oxy/hydroxy species of the multi-metallic formulation of Ni29Pd34Pt37 not only trigger the electrode kinetics at the lower electro-chemical bias-potential but also facilitate towards sustained product formation and electro-extraction as manifested by the output power. A substantial rise of peak power density is obtained by more than 241% higher as compared to Pt, 78%, and 51%, compared to the bimetallic Ni41Pt59 and Pd55Pt45 catalysts, respectively. The increase of CH3CO2- and CO32- yields on the ternary catalyst compared to its unary/binary counterparts, further confirms the catalytic preeminence of the combinatorial formulation of Ni29Pd34 Pt-32 in the present investigation.
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