title: Aerosol-derived Ni(1-x)Zn(x) electrocatalysts for direct hydrazine fuel cells.
abstract: This article reports the synthesis and performance of unsupported Ni(1-x)Zn(x) electrocatalysts for the oxidation of hydrazine in alkaline media. Characterization of these catalysts was achieved using XRD, SEM, and TEM to confirm phase compositions, crystal structures, and morphologies. High performance was observed for the α-Ni(0.87)Zn(0.13) and β(1)-Ni(0.50)Zn(0.50) electrocatalysts with an onset potential of -0.15 V (vs. RHE) and a mass activity of 4000-3800 A g(cat)(-1) at 0.4 V (vs. RHE), respectively. Additionally, in situ IRRAS studies were conducted to understand the mechanism of oxidation. These results demonstrate the feasibility of Ni(1-x)Zn(x) catalysts for direct hydrazine anionic fuel cells.
authors.affiliation: Chemical & Nuclear Engineering Department, UNM Center for Emerging Energy Technologies, University of New Mexico, Albuquerque, NM 87131, USA.
authors.forename: Ulises
authors.initials: U
authors.lastname: Martinez
authors.forename: Koichiro
authors.initials: K
authors.lastname: Asazawa
authors.forename: Barr
authors.initials: B
authors.lastname: Halevi
authors.forename: Akinbayowa
authors.initials: A
authors.lastname: Falase
authors.forename: Boris
authors.initials: B
authors.lastname: Kiefer
authors.forename: Alexey
authors.initials: A
authors.lastname: Serov
authors.forename: Monica
authors.initials: M
authors.lastname: Padilla
authors.forename: Tim
authors.initials: T
authors.lastname: Olson
authors.forename: Abhaya
authors.initials: A
authors.lastname: Datye
authors.forename: Hirohisa
authors.initials: H
authors.lastname: Tanaka
authors.forename: Plamen
authors.initials: P
authors.lastname: Atanassov
mesh_terms: D000336:Aerosols / Q000737:chemistry*; D002384:Catalysis; D011211:Electric Power Supplies; D004563:Electrochemistry; D006834:Hydrazines / Q000737:chemistry*; D009532:Nickel / Q000737:chemistry*; D015032:Zinc / Q000737:chemistry*
chemical_list: D000336:Aerosols; D006834:Hydrazines; C029424:hydrazine; D009532:Nickel; D015032:Zinc