NDLI: Nanosized Mo-doped CeO<sub>2</sub> enhances the electrocatalytic properties of the Pt anode catalyst in direct methanol fuel cells

Content Provider	Royal Society of Chemistry (RSC)
Author	Zhang, Genlei Yang, Zhenzhen Zhang, Wen Wang, Yuxin
Copyright Year	2017
Abstract	The direct methanol fuel cell is an emerging energy conversion device for which Pt is considered as the state-of-the-art anode catalyst. Herein, we show that the activity and stability of Pt for methanol oxidation can be significantly enhanced using Mo-doped CeO2 (Ce1−xMoxO2−δ) solid solutions as co-catalysts. X-ray photoelectron spectroscopy (XPS) reveals a strong electronic interaction between Ce1−xMoxO2−δ and Pt in Pt/Ce1−xMoxO2−δ–C catalysts. Among all Pt/Ce1−xMoxO2−δ–C catalysts, the catalyst with a Ce/Mo atomic ratio of 7/3 (Pt/Ce0.7Mo0.3O2−δ–C) exhibits the highest activity, up to 1888.4 mA mgPt−1, which is one of the best results reported so far. A direct methanol fuel cell incorporating the Pt/Ce0.7Mo0.3O2−δ–C as the anode catalyst exhibits a maximum power density of 69.4 mW cm−2, which is 1.8 times that of an analogous fuel cell using the commercial Pt/C-JM as the anode catalyst.
Starting Page	1481
Ending Page	1487
Page Count	7
File Format	HTM / HTML PDF
ISSN	20507488
Volume Number	5
Issue Number	4
Journal	Journal of Materials Chemistry A
DOI	10.1039/c6ta09043e
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Direct methanol fuel cell Energy transformation Anode Methanol X-ray photoelectron spectroscopy Photoemission spectroscopy Fuel cell
Content Type	Text
Resource Type	Article
Subject	Chemistry Renewable Energy, Sustainability and the Environment Materials Science

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