Different Synthesis Protocols for Co 3 O 4 –CeO 2  Catalysts—Part 1: Influence on the Morphology on the Nanoscale | Zendy

Yang Jingxia | Zendy; Lukashuk Liliana | Zendy; Akbarzadeh Johanna | Zendy; StögerPollach Michael | Zendy; Peterlik Herwig | Zendy; Föttinger Karin | Zendy; Rupprechter Günther | Zendy; Schubert Ulrich | Zendy

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Different Synthesis Protocols for Co 3 O 4 –CeO 2 Catalysts—Part 1: Influence on the Morphology on the Nanoscale

Author(s) -

Yang Jingxia,

Lukashuk Liliana,

Akbarzadeh Johanna,

StögerPollach Michael,

Peterlik Herwig,

Föttinger Karin,

Rupprechter Günther,

Schubert Ulrich

Publication year - 2015

Publication title -

chemistry – a european journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.687

H-Index - 242

eISSN - 1521-3765

pISSN - 0947-6539

DOI - 10.1002/chem.201403636

Subject(s) - crystallite , nanoparticle , catalysis , materials science , chemical engineering , nanoscopic scale , morphology (biology) , yield (engineering) , phase (matter) , nanotechnology , oxide , particle size , particle (ecology) , specific surface area , chemistry , composite material , metallurgy , organic chemistry , oceanography , biology , geology , engineering , genetics

Co 3 O 4 ‐modified CeO 2 (Co/Ce 1:4) was prepared by a combination of sol–gel processing and solvothermal treatment. The distribution of Co was controlled by means of the synthesis protocol to yield three different morphologies, namely, Co 3 O 4 nanoparticles located on the surface of CeO 2 particles, coexistent Co 3 O 4 and CeO 2 nanoparticles, or Co oxide structures homogeneously distributed within CeO 2 . The effect of the different morphologies on the properties of Co 3 O 4 –CeO 2 was investigated with regard to the crystallite phase(s), particle size, surface area, and catalytic activity for CO oxidation. The material with Co 3 O 4 nanoparticles finely dispersed on the surface of CeO 2 particles had the highest catalytic activity.

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