Synthesis of Nanostructured PdMo Electrocatalysts for Oxygen Reduction Reaction in Fuel Cells

Carbon black supported Pd-Mo bimetallical nanoparticles are prepared by Strong Electrostatic Adsorption (SEA) method. A series of Pd-Mo catalysts were prepared by selective deposition of the [Pd (NH3)4]+2cationion onto the supported MoO3phase. The prepared materials are characterized by N2-BET, powder XRD and STEM. The results showed that good dispersion of bimetallic nanoparticles on the carbon support is observed from STEM images. Oxygen reduction measurements performed by linear sweep voltammetry indicat the good catalytic activity of Pd-Mo by SEA compared to dry impregnation (DI) bimetallic catalysts since the SEA technique produced more well dispersed and intimately designed bimetallic particles after reduction.

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Carbon-supported Pd-Co bimetallic nanoparticles as electrocatalysts for the oxygen reduction reaction

Journal of Power Sources ◽

10.1016/j.jpowsour.2007.02.013 ◽

2007 ◽

Vol 167 (2) ◽

pp. 243-249 ◽

Cited By ~ 154

Author(s):

Wenming Wang ◽

Dan Zheng ◽

Chong Du ◽

Zhiqing Zou ◽

Xigui Zhang ◽

...

Keyword(s):

Oxygen Reduction Reaction ◽

Oxygen Reduction ◽

Bimetallic Nanoparticles ◽

Reduction Reaction ◽

Supported Pd

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Carbon-supported Pd–Cr bimetallic nanoparticles and their electrocatalytic activity and durability in oxygen reduction reaction

Russian Journal of Physical Chemistry A ◽

10.1134/s0036024417110280 ◽

2017 ◽

Vol 91 (11) ◽

pp. 2283-2287 ◽

Cited By ~ 3

Author(s):

Tengfei Liu ◽

Huiling Liu ◽

Fuli Ju ◽

Huifang Wang ◽

Yaru Wang ◽

...

Keyword(s):

Oxygen Reduction Reaction ◽

Oxygen Reduction ◽

Electrocatalytic Activity ◽

Bimetallic Nanoparticles ◽

Reduction Reaction ◽

Supported Pd

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Development of high stable Pt-based ORR catalyst over Mn-modified polyaniline-based carbon nanofiber

New Journal of Chemistry ◽

10.1039/d1nj01304a ◽

2021 ◽

Author(s):

Hong Zhu ◽

Qingjun Chen ◽

Jinghua Yu ◽

Qian Zhou ◽

Fanghui Wang ◽

...

Keyword(s):

Fuel Cells ◽

Oxygen Reduction Reaction ◽

Oxygen Reduction ◽

Proton Exchange Membrane ◽

Carbon Nanofiber ◽

Carbon Support ◽

Reduction Reaction ◽

Proton Exchange ◽

Key Factors ◽

Exchange Membrane

The corrosion of carbon support is one of key factors causing deactivation of Pt-based oxygen reduction reaction (ORR) catalysts for proton exchange membrane fuel cells. In this work, a highly...

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Carbon-supported Pd nanocatalyst modified by non-metal phosphorus for the oxygen reduction reaction

Journal of Power Sources ◽

10.1016/j.jpowsour.2008.04.024 ◽

2008 ◽

Vol 182 (1) ◽

pp. 91-94 ◽

Cited By ~ 39

Author(s):

Lifeng Cheng ◽

Zhonghua Zhang ◽

Wenxin Niu ◽

Guobao Xu ◽

Liande Zhu

Keyword(s):

Oxygen Reduction Reaction ◽

Oxygen Reduction ◽

Reduction Reaction ◽

Supported Pd

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Mn-Co oxide/PEDOT as a bifunctional electrocatalyst for oxygen evolution/reduction reactions

MRS Proceedings ◽

10.1557/opl.2015.449 ◽

2015 ◽

Vol 1777 ◽

pp. 1-6 ◽

Cited By ~ 4

Author(s):

Elaheh Davari ◽

Douglas G. Ivey

Keyword(s):

Oxygen Reduction ◽

Oxygen Evolution ◽

Linear Sweep Voltammetry ◽

Microstructural Characterization ◽

Rotating Disk ◽

Reduction Reaction ◽

Rotating Disk Electrode ◽

Bifunctional Electrocatalyst ◽

Bifunctional Electrocatalysts ◽

Anodic Electrodeposition

ABSTRACTBifunctional electrocatalysts, which facilitate the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), are vital components in advanced metal-air batteries. Results are presented for carbon-free, nanocrystalline, rod-like, Mn-Co oxide/PEDOT bifunctional electrocatalysts, prepared by template-free sequential anodic electrodeposition. Electrochemical characterization of synthesized electrocatalysts, with and without a conducting polymer (PEDOT) coating, was performed using cyclic voltammetry (CV) and linear sweep voltammetry (LSV). In addition, microstructural characterization was conducted using SEM, TEM, STEM and XPS. Mn-Co oxide/PEDOT showed improved ORR/OER performance relative to Mn-Co oxide and PEDOT. On the basis of rotating disk electrode (RDE) experiments, Mn-Co oxide/PEDOT displayed the desired 4-electron transfer oxygen reduction pathway. Comparable ORR activity and superior OER activity relative to commercial Pt/C were observed.

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