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Title: Synthesis and x-ray characterization of cobalt phosphide (Co₂P) nanorods for the oxygen reduction reaction

Journal Article · · ACS Nano
 [1];  [2];  [1];  [1];  [1];  [2];  [1];  [1]
  1. Univ. of Pennsylvania, Philadelphia, PA (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)

Low temperature fuel cells are clean, effective alternative fuel conversion technology. Oxygen reduction reaction (ORR) at the fuel cell cathode has required Pt as the electrocatalyst for high activity and selectivity of the four-electron reaction pathway. Targeting a less expensive, earth abundant alternative, we have developed the synthesis of cobalt phosphide (Co₂P) nanorods for ORR. Characterization techniques that include total X-ray scattering and extended X-ray absorption fine structure revealed a deviation of the nanorods from bulk crystal structure with a contraction along the b orthorhombic lattice parameter. The carbon supported nanorods have comparable activity but are remarkably more stable than conventional Pt catalysts for the oxygen reduction reaction in alkaline environments.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC00112704
OSTI ID:
1213384
Report Number(s):
BNL-108265-2015-JA; KC0403020
Journal Information:
ACS Nano, Vol. 9, Issue 8; ISSN 1936-0851
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 123 works
Citation information provided by
Web of Science

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Cited By (27)

Transition metal trifluoroacetates (M = Fe, Co, Mn) as precursors for uniform colloidal metal difluoride and phosphide nanoparticles text January 2019
Tuning Nanowires and Nanotubes for Efficient Fuel-Cell Electrocatalysis journal September 2016
Recent developments of transition metal phosphides as catalysts in the energy conversion field journal January 2018
Multifunctional Transition Metal‐Based Phosphides in Energy‐Related Electrocatalysis journal September 2019
Colloidal Cobalt Phosphide Nanocrystals as Trifunctional Electrocatalysts for Overall Water Splitting Powered by a Zinc-Air Battery journal January 2018
Ni 2 P hollow microspheres for electrocatalytic oxygen evolution and reduction reactions journal January 2018
Recent advances in cobalt phosphide based materials for energy-related applications journal January 2017
A three-dimensional porous MoP@C hybrid as a high-capacity, long-cycle life anode material for lithium-ion batteries journal January 2016
Commercial Prospects of Existing Cathode Materials for Sodium Ion Storage journal July 2017
Transition metal trifluoroacetates (M = Fe, Co, Mn) as precursors for uniform colloidal metal difluoride and phosphide nanoparticles journal April 2019
Regulating Water-Reduction Kinetics in Cobalt Phosphide for Enhancing HER Catalytic Activity in Alkaline Solution journal May 2017
Ultrafine Co 2 P nanorods wrapped by graphene enable a long cycle life performance for a hybrid potassium-ion capacitor journal January 2019
MOF-Derived Bifunctional Cu 3 P Nanoparticles Coated by a N,P-Codoped Carbon Shell for Hydrogen Evolution and Oxygen Reduction journal December 2017
Submicron Co 9 S 8 /CoS/Carbon Spheres Derived from Bacteria for the Electrocatalytic Oxygen Reduction Reaction journal August 2019
Transition Metal Phosphides for the Catalytic Hydrodeoxygenation of Waste Oils into Green Diesel journal March 2019
Transition metal–phosphorus-based materials for electrocatalytic energy conversion reactions journal January 2017
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