Fabrication and Characterization of Well-Dispersed and Highly Stable PtRu Nanoparticles on Carbon Mesoporous Material for Applications in Direct Methanol Fuel Cell | Zendy

ShouHeng Liu | Zendy; WenYueh Yu | Zendy; Ching-Hsiang Chen | Zendy; An-Ya Lo | Zendy; BingJoe Hwang | Zendy; Shu-Hua Chien | Zendy; Shang-Bin Liu | Zendy

Open Access

Fabrication and Characterization of Well-Dispersed and Highly Stable PtRu Nanoparticles on Carbon Mesoporous Material for Applications in Direct Methanol Fuel Cell

Author(s) -

ShouHeng Liu,

WenYueh Yu,

Ching-Hsiang Chen,

An-Ya Lo,

BingJoe Hwang,

Shu-Hua Chien,

Shang-Bin Liu

Publication year - 2008

Publication title -

chemistry of materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.741

H-Index - 375

eISSN - 1520-5002

pISSN - 0897-4756

DOI - 10.1021/cm702777j

Subject(s) - materials science , furfuryl alcohol , x ray photoelectron spectroscopy , nanoparticle , mesoporous material , methanol , ruthenium , chemical engineering , carbon fibers , direct methanol fuel cell , inorganic chemistry , anode , catalysis , nanotechnology , chemistry , organic chemistry , composite material , electrode , composite number , engineering

Well-dispersed, highly stable PtRu nanoparticles of ca. 2–3 nm on carbon mesoporous materials (PtRuCMMs) were synthesized directly using SBA-15 mesoporous silica as the template, furfuryl alcohol and trimethylbenzene as the primary carbon source, and platinum and ruthenium acetylacetonates as the cofeeding metal and carbon precursors. Results obtained from X-ray diffraction and X-ray photoelectron spectroscopy show that the Pt metal in the PtRu-CMMs was present in the form of a face-centered cubic (fcc) crystalline structure and the alloyed PtRu nanoparticles were composed mainly of Ru oxides, Ru(0), and Pt(0) metals. Further studies by X-ray absorption spectroscopy confirmed that a highly alloyed state of the PtRu nanoparticles is responsible for the superior electrocatalytic performance observed for the PtRu-CMMs, as compared to typical commercial electrocatalysts. The Pt50Ru50-CMM sample was found to possess the best electrocatalytic performance and long-term durability and should appeal to direct methanol fuel cell applications as anodic electrodecatalyst.

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