نتایج جستجو برای: catalytic co oxidation

تعداد نتایج: 507871  

Journal: :Advanced Materials 2023

Oxidation Catalysts In article number 2211260, Javier Pérez-Ramírez and co-workers report the design of a novel atomically dispersed Mn catalyst on CeO2 for selective oxidation ammonia to nitrous oxide. Effective stabilization low-valence isolated manganese sites results in formation unique catalytic ensemble, which enables facile oxygen activation leads unprecedented activity stability.

Journal: :Philosophical transactions. Series A, Mathematical, physical, and engineering sciences 2008
Michael Stich Christian Punckt Carsten Beta Harm Hinrich Rotermund

Control of spatiotemporal chaos is achieved in the catalytic oxidation of CO on Pt(110) by localized modification of the kinetic properties of the surface chemical reaction. In the experiment, a small temperature heterogeneity is created on the surface by a focused laser beam. This heterogeneity constitutes a pacemaker and starts to emit target waves. These waves slowly entrain the medium and s...

2011
Qiaohong Zhang Chen Chen Min Wang Jiaying Cai Jie Xu Chungu Xia

Highly dispersed cobalt-silicon mixed oxide [Co-SiO2] nanosphere was successfully prepared with a modified reverse-phase microemulsion method. This material was characterized in detail by X-ray diffraction, transmission electron microscopy, Fourier transform infrared, ultraviolet-visible diffuse reflectance spectra, X-ray absorption spectroscopy near-edge structure, and N2 adsorption-desorption...

Journal: :Bulletin of the Chemical Society of Japan 1983

Journal: :Dalton transactions 2016
Markus D Kärkäs Björn Åkermark

Catalysts for the oxidation of H2O are an integral component of solar energy to fuel conversion technologies. Although catalysts based on scarce and precious metals have been recognized as efficient catalysts for H2O oxidation, catalysts composed of inexpensive and earth-abundant element(s) are essential for realizing economically viable energy conversion technologies. This Perspective summariz...

2016
Jingxia Yang Johannes Ofner Bernhard Lendl Ulrich Schubert

Raman and IR investigations indicated the presence of reduced graphene oxide (rGO)-like residues on ceria nanoparticles after solvothermal treatment in ethanol. The appearance of such structures is closely related to cerium tert-butoxide as precursor and ethanol as solvothermal solvent. The rGO-like residues improve the catalytic CO oxidation activity. This was also confirmed by introduction of...

2010
Jurriaan Beckers Gadi Rothenberg

This Perspective covers sustainable oxidation processes using doped cerias, ceria-supported catalysts and ceria-based mixed oxides. Firstly, we consider the general properties of ceria-based catalysts. We outline the advantages of the ceria redox cycle, and explain the dynamic behaviour of these catalysts in the presence of metal additives and dopants. We then review three types of catalytic ox...

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