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Title: Structurally ordered Pt–Zn/C series nanoparticles as efficient anode catalysts for formic acid electrooxidation

Journal Article · · Journal of Materials Chemistry. A
DOI:https://doi.org/10.1039/C5TA05699C· OSTI ID:1222622
 [1];  [1];  [1];  [1];  [2];  [2];  [3];  [1]
  1. Huazhong Univ. of Science and Technology, Wuhan (China)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States); Stony Brook Univ., Stony Brook, NY (United States)

Controlling the size, composition, and structure of bimetallic nanoparticles is of particular interest in the field of electrocatalysts for fuel cells. In the present work, structurally ordered nanoparticles with intermetallic phases of Pt3Zn and PtZn have been successfully synthesized via an impregnation reduction method, followed by post heat-treatment. The Pt3Zn and PtZn ordered intermetallic nanoparticles are well dispersed on a carbon support with ultrasmall mean particle sizes of ~5 nm and ~3 nm in diameter, respectively, which are credited to the evaporation of the zinc element at high temperature. These catalysts are less susceptible to CO poisoning relative to Pt/C and exhibited enhanced catalytic activity and stability toward formic acid electrooxidation. The mass activities of the as-prepared catalysts were approximately 2 to 3 times that of commercial Pt at 0.5 V (vs. RHE). As a result, this facile synthetic strategy is scalable for mass production of catalytic materials.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
21306060
OSTI ID:
1222622
Report Number(s):
BNL-108453-2015-JA; JMCAET; KC0403020
Journal Information:
Journal of Materials Chemistry. A, Journal Name: Journal of Materials Chemistry. A; ISSN 2050-7488
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 47 works
Citation information provided by
Web of Science

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Cited By (12)

Optimizing PtFe intermetallics for oxygen reduction reaction: from DFT screening to in situ XAFS characterization journal January 2019
High-performance alcohol electrooxidation on Pt 3 Sn–SnO 2 nanocatalysts synthesized through the transformation of Pt–Sn nanoparticles journal January 2020
Addressing the Stability of Bulk Electrode Materials in the Electrochemical Methanol Oxidation journal January 2019
Role of Ultrathin Carbon Shell in Enhancing the Performance of PtZn Intermetallic Nanoparticles as an Anode Electrocatalyst for Direct Formic Acid Fuel Cells journal April 2019
Synthesis and Electrochemical Property of PtPdCu Nanoparticles with Truncated-Octahedral Morphology journal September 2018
Zn-enriched PtZn nanoparticle electrocatalysts synthesized by solution combustion for ethanol oxidation reaction in an alkaline medium journal April 2018
Effects of crystal phase and composition on structurally ordered Pt–Co–Ni/C ternary intermetallic electrocatalysts for the formic acid oxidation reaction journal January 2018
Improving the electrocatalytic activity for formic acid oxidation of bimetallic Ir–Zn nanoparticles decorated on graphene nanoplatelets journal January 2020
Effect of Atomic Ordering on the Activity for Methanol and Formic Acid Oxidation of Pt‐Based Electrocatalysts journal April 2019
Structurally ordered PtSn intermetallic nanoparticles supported on ATO for efficient methanol oxidation reaction journal January 2019
Intermetallic Nanocrystals: Syntheses and Catalytic Applications journal February 2017
Efficient Synthesis of Bimetallic Pt 3 Zn Alloy Nanocrystals with Different Shapes and their Enhanced Electrocatalytic Activity journal July 2019

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