Crystal Structure

Abstract

copyright 0 WILEY-VCH Verlag G m b H , 1998 296 5 Crystal Structure

Rh promoted Ni over yttria–zirconia supported catalyst for hydrogen‐rich syngas production through dry reforming of methane

“…Upon 5NixRh/YZr (x = 1-5 wt%) catalysts, thermally stable cubic ZrO 2 phase and tetragonal ZrO 2 phases (at Brag angle 2θ = 30.26°, 35.04°, 50.31°, 59.74°, 62.70°, 74.07°; JCPDS reference number 00-003-0640), tetragonal ZrO 2 phases (at about Brag angle of 2θ = 30.31°, 35.15°, 50.42°, 60.03°, 62.77°, and 74.09°; JCPDS reference number 01-080-0784) and the diffuse peak of thermally unstable monoclinic zirconia phase (at Brag angle 2θ = 28.3°; JCPDS reference number 01-078-0047) are found. 16 Apart from the zirconia phase, the cubic Ni phase is also detected at Bragg's angle 2θ = 44.67°(JCPDS reference number 00-001-1260). On increasing Rh loading from 1 to 3 wt% Rh, the crystallinity of catalyst samples declines (Figure 2B-D).…”