Abstract: 2:1 Ni/Al layered double hydroxides (LDH) doped by anions using ammonium salts (NH4)10[W12O41], NH4VO3 or (NH4)3[NbO(C2O4)3] have been prepared by co-precipitation, dried and calcined at 600оС, forming NiO-based solid solutions. Diffraction patterns are typical for the layered Ni-Al-O hydrotalcite-like structure. Anion incorporation into the interlayer space increases the interlayer distance for W- and Nb-containing anions but decreases it for VO3 -1. Broad halos in the diffraction patterns indicate amorphous or strongly disordered phases containing the doping anions. H2 reduction of undoped Ni-Al-O (NA) and those doped by W (NAW) and Nb (NANb) occurred in one step, while that doped by V (NAV) was reduced in two steps. W doping increases the reduction temperature, but Nb doping decreases it. The hydrogen consumed increases in the row: NANb < NAW < NAV < NA. In the ethanol steam reforming reaction, modification by W and Nb anions results in ethanol conversion rates close to that of the unmodified sample, but V increases it nearly twofold.

Cite: Korneeva E.V. , Kardash T.Y. , Rogov V.A. , Smal E.A. , Sadykov V.A.
Catalytic Steam Reforming of Ethanol over W-, V-, or Nb–Modified Ni-Al-O Hydrotalcite-Type Precursors
Catalysis for Sustainable Energy. 2017. V.4. N1. P.17-24. DOI: 10.1515/cse-2017-0004 РИНЦ AN OpenAlex

Files: Full text from publisher

Dates:

Submitted:	Apr 5, 2017
Accepted:	May 16, 2017
Published print:	Oct 26, 2017
Published online:	Oct 28, 2017

Identifiers:

Elibrary:	32280958
Chemical Abstracts:	2019:578790
OpenAlex:	W2765949780

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