Multimetallic nanoparticle catalysts with enhanced electrooxidation

Title: Multimetallic nanoparticle catalysts with enhanced electrooxidation

A new structure-control strategy to optimize nanoparticle catalysis is provided. The presence of Au in FePtAu facilitates FePt structure transformation from chemically disordered face centered cubic (fcc) structure to chemically ordered face centered tetragonal (fct) structure, and further promotes formic acid oxidation reaction (FAOR). The fct-FePtAu nanoparticles show high CO poisoning resistance, achieve mass activity as high as about 2810 mA/mg Pt, and retain greater than 90% activity after a 13 hour stability test.

Inventors:: Sun, Shouheng; Zhang, Sen; Zhu, Huiyuan; Guo, Shaojun

Issue Date:: 2015-07-28

OSTI Identifier:: 1202278

Assignee:: Brown University (Providence, RI) CHO

Patent Number(s):: 9,093,715

Application Number:: 13/793,432

Contract Number:: AC02-98CH10886

Resource Relation:: Patent File Date: 2013 Mar 11

Research Org:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

Subject:: 77 NANOSCIENCE AND NANOTECHNOLOGY; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

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Other works cited in this record:

Nanocrystalline intermetallics on mesoporous carbon for direct formic acid fuel cell anodes
journal, February 2010

Ji, Xiulei; Lee, Kyu Tae; Holden, Reanne
Nature Chemistry, Vol. 2, Issue 4, p. 286-293
DOI: 10.1038/nchem.553

Recent Advances in Chemical Synthesis, Self-Assembly, and Applications of FePt Nanoparticles
journal, February 2006

Sun, S.
Advanced Materials, Vol. 18, Issue 4, p. 393-403
DOI: 10.1002/adma.200501464

Recent advances in direct formic acid fuel cells (DFAFC)
journal, July 2008

Yu, Xingwen; Pickup, Peter G.
Journal of Power Sources, Vol. 182, Issue 1, p. 124-132
DOI: 10.1016/j.jpowsour.2008.03.075

Electrostatic Self-Assembly of a Pt-around-Au Nanocomposite with High Activity towards Formic Acid Oxidation
journal, March 2010

Zhang, Sheng; Shao, Yuyan; Yin, Geping
Angewandte Chemie International Edition, Vol. 49, Issue 12, p. 2211-2214
DOI: 10.1002/anie.200906987

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