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Cited by 39Electrocatalysts for Energy ConversionCatalytic Processes in Materials ScienceFuel Cells and Related Materials

Synthesis, Activity and Durability of Pt Nanoparticles Supported on Multi-walled Carbon Nanotubes for Oxygen Reduction

Open access
Sheng, Wenchao, Lee, Seung Woo, Crumlin, Ethan J., Chen, Shuo, Shao-Horn, Yang·2011·Journal of The Electrochemical Society
DOI 10.1149/2.066111jes
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Abstract

Carbon nanotube supported metal nanoparticles (NPs) have attracted considerable attention due to their great potential for heterogeneous catalysis. In this paper, surfactant-free and well dispersed platinum (Pt) NPs supported on multi-walled carbon nanotubes (MWCNTs) were synthesized by immobilization of negatively charged Pt precursor (PtCl 4 2− ) onto positively charged MWCNTs (NH 3 + -MWCNTs) by electrostatic interactions, which was reduced subsequently to Pt NPs of ∼2 nm supported on MWCNTs by heating in 4% H 2 atmosphere. The Pt loading on MWCNTs could be controlled by the pH of the suspension of Pt precursor and MWCNTs, and the Pt-precursor concentration in the suspension. These Pt NPs supported on MWCNTs showed comparable oxygen reduction reaction (ORR) activity to a commercial Pt catalyst supported on high-surface-area carbon but with enhanced durability.

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  • High-temperature heat treatment can cause agglomeration of particles, reduction of specific surface area, and broadening of particle size distribution.

    “However, high-temperature heat treatment can cause agglomeration of particles, reduction of specific surface area, and broadening of particle size distribution.”

    From Carbon-Supported Pt-Based Alloy Electrocatalysts for the Oxygen Reduction Reaction in Polymer Electrolyte Membrane Fuel Cells: Particle Size, Shape, and Composition Manipulation and Their Impact to Activity (2015) · cites this paper as [235]

    In the XPS results section (page not provided), the paper reports that increasing heat-treatment temperature from 300°C to 600°C caused no substantial change in Pt nanoparticle size or dispersion. It describes the resulting particles as well dispersed, contrary to attributing heat-induced agglomeration and a broadened size distribution to this study. The passage does not report a reduction in specific surface area from heat treatment. (LLM, conf=0.83)

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References 44 · Cited by 39

Research works printed but not linked: 28

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Authors
Sheng, W., Lee, S. W., Crumlin, E. J., Chen, S., & Shao-Horn, Y.
ORCID
Venue
Journal of The Electrochemical Society
Publisher
The Electrochemical Society
Published
2011
Volume
158
Issue
11
Pages
B1398
ISSN
0013-4651 (ISSN-L)
DOI
10.1149/2.066111jes
OpenAlex
W2100169319
Cited by
39
References
44
Citations by year
2026: 1 · 2025: 1 · 2023: 1 · 2022: 1 · 2021: 1 · 2020: 1 · 2019: 4 · 2018: 2 · 2017: 2 · 2016: 3 · 2015: 4 · 2014: 9 · 2013: 7 · 2012: 2
FWCI
2.39
Type
journal article
Language
en
Open access
Locations
  • Journal of The Electrochemical Society (publishedVersion)
  • DSpace@MIT (Massachusetts Institute of Technology) (submittedVersion, cc-by-nc)
Funders
  • National Science Foundation (DE-AC02–06CH11357, 0819762)
  • U.S. Department of Energy (DE‐ AC02‐06CH11357, DE‐FG02‐, AC02‐06CH11357, contract DE-AC02-06CH11357, FG02-05ER15728, DEFG0205ER15728, 06CH11357, DMR-08-19762, DE-AC02-)
  • Samsung
  • Office of Energy Efficiency and Renewable Energy (AC02-06CH11357, DE‐AC02‐06CH11357)
  • Materials Research Science and Engineering Center, Harvard University
  • Fuel Cell Technologies Program (DE-AC02-06CH11357)
  • Division of Materials Research (DMR - 0819762, DE-AC02-06CH11357)
  • Office of Energy Efficiency
  • Argonne National Laboratory (DE- AC02-06-CH11357, DE-AC02, AC02–06CH11357, 06CH11357, under contract DE-AC02-06CH11357)
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
  • Physical Sciences › Materials Science › Materials Chemistry › Catalytic Processes in Materials Science
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Fuel Cells and Related Materials
Keywords
platinum nanoparticles, multi-walled carbon nanotubes, oxygen reduction reaction, electrocatalysts, surfactant-free synthesis, electrostatic immobilization, catalyst stability, hydrogen reduction

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