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Dual‐Function Cobalt–Nickel Nanoparticles Tailored for High‐Temperature Induction‐Heated Steam Methane Reforming
Author(s) -
Vinum Morten G.,
Almind Mads R.,
Engbæk Jakob S.,
Vendelbo Søren B.,
Hansen Mikkel F.,
Frandsen Cathrine,
Bendix Jesper,
Mortensen Peter M.
Publication year - 2018
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201804832
Subject(s) - catalysis , methane , steam reforming , materials science , cobalt , reactivity (psychology) , nickel , induction heating , ternary operation , chemical engineering , hydrogen production , hydrogen , nanoparticle , methane reformer , inorganic chemistry , nanotechnology , metallurgy , chemistry , organic chemistry , medicine , alternative medicine , pathology , computer science , electrical engineering , electromagnetic coil , programming language , engineering
The tailored chemical synthesis of binary and ternary alloy nanoparticles with a uniform elemental composition is presented. Their dual use as magnetic susceptors for induction heating and catalytic agent for steam reforming of methane to produce hydrogen at temperatures near and above 800 °C is demonstrated. The heating and catalytic performance of two chemically synthesized samples of CoNi and Cu ⊂ CoNi are compared and held against a traditional Ni‐based reforming catalyst. The structural, magnetic, and catalytic properties of the samples were characterized by X‐ray diffraction, elemental analysis, magnetometry, and reactivity measurements. For induction‐heated catalysts, the conversion rate of methane is limited by chemical reactivity, as opposed to the case of traditional externally heated reformers where heat transport limitations are the limiting factor. Catalyst production by the synthetic route allows controlled doping with miniscule concentrations of auxiliary metals.