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Effect of heat treatment on the activity and stability of PtCo/C catalyst and application of in-situ X-ray absorption near edge structure for proton exchange membrane fuel cell
Lin, R; Zhao, TT; Shang, MF; Wang, JQ; Tang, WC; Guterman, VE; Ma, JX; Lin, R (reprint author), Tongji Univ, Clean Energy Automot Engn Ctr, Shanghai 201804, Peoples R China.
2015
Source PublicationJOURNAL OF POWER SOURCES
ISSN0378-7753
Volume293Pages:274—282
Subtype期刊文献
AbstractFor the purpose of reducing the cost and improving the performance of the proton exchange membrane fuel cell (PEMFC), some low-Pt or non-Pt catalysts have been studied in recent years. PtCo/C electrocatalysts are synthesized by a two-step reduction approach followed by the heat treatment. PtCo metal particles are uniformly dispersed on the surface of XC-72 carbon support, with a uniform particle size distribution. The PtCo/C catalyst after 400 degrees C heat treatment has the best electrochemical performance among the as-prepared catalysts, even superior to the commercial Pt/C catalyst. In the durability test, PtCo/C-400 also shows excellent stability with only 6.9% decline of electrochemical surface area (ECSA) after 1000 cyclic voltammetry (CV) cycles. In-situ X-ray absorption near edge structure (XANES) technique is conducted to explore the nanostructure change of Pt during the PEMFC operation. For PtCo/C catalyst, with the fuel cell operation potential decreasing from open circuit voltage (OCV) to 0.3 V, the Pt L-3 white line intensity decreases continuously, indicating the decline of Pt 5d-vacancy due to the adsorption of oxygenated species. (C) 2015 Elsevier B.V. All rights reserved.
KeywordOxygen Reduction Reaction Pt-m m Particle-size Orr Activity Co Electrocatalysts Cathode Catalyst Acidic Media Durability Platinum Pemfc
Indexed BySCI
Language英语
WOS IDWOS:000358809700034
Citation statistics
Cited Times:33[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/24906
Collection中科院上海应用物理研究所2011-2020年
Corresponding AuthorLin, R (reprint author), Tongji Univ, Clean Energy Automot Engn Ctr, Shanghai 201804, Peoples R China.
Recommended Citation
GB/T 7714
Lin, R,Zhao, TT,Shang, MF,et al. Effect of heat treatment on the activity and stability of PtCo/C catalyst and application of in-situ X-ray absorption near edge structure for proton exchange membrane fuel cell[J]. JOURNAL OF POWER SOURCES,2015,293:274—282.
APA Lin, R.,Zhao, TT.,Shang, MF.,Wang, JQ.,Tang, WC.,...&Lin, R .(2015).Effect of heat treatment on the activity and stability of PtCo/C catalyst and application of in-situ X-ray absorption near edge structure for proton exchange membrane fuel cell.JOURNAL OF POWER SOURCES,293,274—282.
MLA Lin, R,et al."Effect of heat treatment on the activity and stability of PtCo/C catalyst and application of in-situ X-ray absorption near edge structure for proton exchange membrane fuel cell".JOURNAL OF POWER SOURCES 293(2015):274—282.
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