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Cited by 111Electrocatalysts for Energy ConversionFuel Cells and Related MaterialsCatalytic Processes in Materials Science

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Supported Noble Metals on Hydrogen‐Treated TiO2 Nanotube Arrays as Highly Ordered Electrodes for Fuel Cells

Zhang, Changkun, Yu, Hongmei, Li, Yongkun, Gao, Yuan, Zhao, Yun, Song, Wei, Shao, Zhigang, Yi, Baolian·2013·ChemSusChem
DOI 10.1002/cssc.201200828
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Abstract

Hydrogen‐treated TiO 2 nanotube (H–TNT) arrays serve as highly ordered nanostructured electrode supports, which are able to significantly improve the electrochemical performance and durability of fuel cells. The electrical conductivity of H–TNTs increases by approximately one order of magnitude in comparison to air‐treated TNTs. The increase in the number of oxygen vacancies and hydroxyl groups on the H–TNTs help to anchor a greater number of Pt atoms during Pt electrodeposition. The H–TNTs are pretreated by using a successive ion adsorption and reaction (SIAR) method that enhances the loading and dispersion of Pt catalysts when electrodeposited. In the SIAR method a Pd activator can be used to provide uniform nucleation sites for Pt and leads to increased Pt loading on the H‐TNTs. Furthermore, fabricated Pt nanoparticles with a diameter of 3.4 nm are located uniformly around the pretreated H–TNT support. The as‐prepared and highly ordered electrodes exhibit excellent stability during accelerated durability tests, particularly for the H–TNT‐loaded Pt catalysts that have been annealed in ultrahigh purity H 2 for a second time. There is minimal decrease in the electrochemical surface area of the as‐prepared electrode after 1000 cycles compared to a 68 % decrease for the commercial JM 20 % Pt/C electrode after 800 cycles. X‐ray photoelectron spectroscopy shows that after the H–TNT‐loaded Pt catalysts are annealed in H 2 for the second time, the strong metal–support interaction between the H–TNTs and the Pt catalysts enhances the electrochemical stability of the electrodes. Fuel‐cell testing shows that the power density reaches a maximum of 500 mW cm−2 when this highly ordered electrode is used as the anode. When used as the cathode in a fuel cell with extra‐low Pt loading, the new electrode generates a specific power density of 2.68 kW g Pt−1. It is indicated that H–TNT arrays, which have highly ordered nanostructures, could be used as ordered electrode supports.

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Crossref · 10.1002/cssc.201200828

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  • Aligned carbon nanotubes or nanofibers, conducting metal dioxides (e.g., TiO2 and SnO2), and conductive polymers can be used as supports for Pt nanoparticles and are employed as ordered catalyst supports for PEMFCs to yield ordered catalytic layer structures.

    “Usually, aligned carbon nanotubes or nanofibers, conducting metal dioxides (e.g., TiO 2 and SnO 2 ), and conductive polymers can be used as supports for Pt nanoparticles and are employed as ordered catalyst supports for PEMFCs to yield ordered catalytic layer structures [261-263] such as the nanostructured thin film (NSTF) electrode developed by 3M Company.”

    From Recent Advances on PEM Fuel Cells: From Key Materials to Membrane Electrode Assembly (2023) · cites this paper as [262]

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Metadata

Authors
Zhang, C., Yu, H., Li, Y., Gao, Y., Zhao, Y., Song, W., Shao, Z., & Yi, B.
Affiliations
Dalian Institute of Chemical Physics (CN)
Corresponding author
  • Yu, Hongmei
  • Shao, Zhigang
ORCID
Venue
ChemSusChem
Publisher
Wiley
Published
2013-02-28
Volume
6
Issue
4
Pages
659-666
ISSN
  • 1864-5631 (ISSN-L)
  • 1864-564X
DOI
10.1002/cssc.201200828
OpenAlex
W2043811060
Cited by
111
References
2
Citations by year
2026: 2 · 2025: 8 · 2024: 9 · 2023: 7 · 2022: 3 · 2021: 7 · 2020: 11 · 2019: 8 · 2018: 10 · 2017: 14 · 2016: 7 · 2015: 11 · 2014: 12 · 2013: 2
FWCI
3.88
Type
journal article
Language
en
Open access
closed
Licence
onlinelibrary.wiley.com/termsAndConditions#vor (vor)
Locations
  • ChemSusChem (publishedVersion)
  • PubMed (publishedVersion)
  • Dalian Institute of Chemical Physics, CAS Institutional Repository (submittedVersion)
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Fuel Cells and Related Materials
  • Physical Sciences › Materials Science › Materials Chemistry › Catalytic Processes in Materials Science
Keywords
TiO2 nanotube arrays, hydrogen treatment, platinum catalysts, fuel cell electrodes, electrode supports, metal-support interaction, oxygen vacancies, hydroxyl groups, electrochemical stability, low Pt loading, anode and cathode electrodes, nanostructured electrodes
MeSH terms
Electric Conductivity, Electrodes, Hydrogen, Microscopy, Electron, Scanning, Palladium, Platinum, Electric Power Supplies, Titanium, Nanotubes, Microscopy, Electron, Transmission

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