Nickel oxides supported on ?-alumina (Ni-loading from 5 to 30 wt% NiO) have been synthesized and tested in the oxidative dehydrogenation (ODH) of ethane order determine importance NiO-support interaction. The best performance was achieved by catalyst with 15 NiO; higher NiO-loadings lead formation unselective bulk-like NiO lower Ni-loadings present high proportion free alumina surface sites. pr...

Abstract Syngas can be produced from biomethane via Partial Oxidation of Methane (POM), being an attractive route since it is ecofriendly and sustainable. In this work, catalysts Ni supported on MgO–ZrO 2 solid solutions, prepared by a one-step polymerization method, were characterized HRTEM/EDX, XRD, XPS, H -TPR, in situ XRD. All catalysts, including Ni/ZrO Ni/MgO as reference, tested for POM ...

Supported nickel catalysts represent a class of important catalytic materials in selective hydrogenations, but applications are frequently limited by metal agglomeration or active-site blocking induced the presence hydrogen halides. Herein, we report novel pre-coking strategy, exposing nanoparticles under methane dry reforming conditions to manipulate performance continuous-flow hydrogenation 1...

-Biofilm is communities of microorganisms attached to the surface and is able to concentrate metal species within their cell structure. Therefore, the aim of this study was to produce Escherichia coli biofilm on zeolite (clinoptilolite) and evaluate its ability for nickel (Ni) and chromium (Cr) adsorption from aqueous solutions. A laboratory-scale batch model was used for biodsorption assay. Th...