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Title: Stabilizing CuPd Nanoparticles via CuPd Coupling to WO 2.72 Nanorods in Electrochemical Oxidation of Formic Acid

Stabilizing a 3d-transition metal component M from an MPd alloy structure in an acidic environment is key to the enhancement of MPd catalysis for various reactions. Here we show a strategy to stabilize Cu in 5 nm CuPd nanoparticles (NPs) by coupling the CuPd NPs with perovskite-type WO 2.72 nanorods (NRs). The CuPd NPs are prepared by controlled diffusion of Cu into Pd NPs and the coupled CuPd/WO 2.72 are synthesized by growing WO 2.72 NRs in the presence of CuPd NPs. The CuPd/WO 2.72 can stabilize Cu in 0.1 M HClO4 solution and, as a result, they show Cu, Pd composition dependent activity for the electrochemical oxidation of formic acid in 0.1 M HClO 4 + 0.1 M HCOOH. Among three different CuPd/WO 2.72 studied, the Cu 48Pd 52/WO 2.72 is the most efficient catalyst with its mass activity reaching 2086 mA/mgPd in a broad potential range of 0.40 to 0.80 V (vs. RHE) and staying at this value after the 12 h chronoamperometry test at 0.40 V. The synthesis can be extended to obtain other MPd/WO 2.72 (M = Fe, Co, Ni), making it possible to study MPd-WO 2.72 interactions and MPd stabilization on enhancing MPd catalysis formore » various chemical reactions.« less
Authors:
ORCiD logo [1] ;  [1] ; ORCiD logo [2] ;  [1] ; ORCiD logo [1] ; ORCiD logo [3] ; ORCiD logo [1]
  1. Brown Univ., Providence, RI (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Huazhong Univ. of Science and Technology, Wuhan (China)
Publication Date:
Report Number(s):
BNL-114858-2017-JAAM
Journal ID: ISSN 0002-7863; TRN: US1802002
Grant/Contract Number:
SC0012704
Type:
Accepted Manuscript
Journal Name:
Journal of the American Chemical Society
Additional Journal Information:
Journal Volume: 139; Journal Issue: 42; Journal ID: ISSN 0002-7863
Publisher:
American Chemical Society (ACS)
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 42 ENGINEERING
OSTI Identifier:
1425019

Xi, Zheng, Li, Junrui, Su, Dong, Muzzio, Michelle, Yu, Chao, Li, Qing, and Sun, Shouheng. Stabilizing CuPd Nanoparticles via CuPd Coupling to WO2.72 Nanorods in Electrochemical Oxidation of Formic Acid. United States: N. p., Web. doi:10.1021/jacs.7b08643.
Xi, Zheng, Li, Junrui, Su, Dong, Muzzio, Michelle, Yu, Chao, Li, Qing, & Sun, Shouheng. Stabilizing CuPd Nanoparticles via CuPd Coupling to WO2.72 Nanorods in Electrochemical Oxidation of Formic Acid. United States. doi:10.1021/jacs.7b08643.
Xi, Zheng, Li, Junrui, Su, Dong, Muzzio, Michelle, Yu, Chao, Li, Qing, and Sun, Shouheng. 2017. "Stabilizing CuPd Nanoparticles via CuPd Coupling to WO2.72 Nanorods in Electrochemical Oxidation of Formic Acid". United States. doi:10.1021/jacs.7b08643. https://www.osti.gov/servlets/purl/1425019.
@article{osti_1425019,
title = {Stabilizing CuPd Nanoparticles via CuPd Coupling to WO2.72 Nanorods in Electrochemical Oxidation of Formic Acid},
author = {Xi, Zheng and Li, Junrui and Su, Dong and Muzzio, Michelle and Yu, Chao and Li, Qing and Sun, Shouheng},
abstractNote = {Stabilizing a 3d-transition metal component M from an MPd alloy structure in an acidic environment is key to the enhancement of MPd catalysis for various reactions. Here we show a strategy to stabilize Cu in 5 nm CuPd nanoparticles (NPs) by coupling the CuPd NPs with perovskite-type WO2.72 nanorods (NRs). The CuPd NPs are prepared by controlled diffusion of Cu into Pd NPs and the coupled CuPd/WO2.72 are synthesized by growing WO2.72 NRs in the presence of CuPd NPs. The CuPd/WO2.72 can stabilize Cu in 0.1 M HClO4 solution and, as a result, they show Cu, Pd composition dependent activity for the electrochemical oxidation of formic acid in 0.1 M HClO4 + 0.1 M HCOOH. Among three different CuPd/WO2.72 studied, the Cu48Pd52/WO2.72 is the most efficient catalyst with its mass activity reaching 2086 mA/mgPd in a broad potential range of 0.40 to 0.80 V (vs. RHE) and staying at this value after the 12 h chronoamperometry test at 0.40 V. The synthesis can be extended to obtain other MPd/WO2.72 (M = Fe, Co, Ni), making it possible to study MPd-WO2.72 interactions and MPd stabilization on enhancing MPd catalysis for various chemical reactions.},
doi = {10.1021/jacs.7b08643},
journal = {Journal of the American Chemical Society},
number = 42,
volume = 139,
place = {United States},
year = {2017},
month = {10}
}