Effects of Anion Substitution in (Mo,V)5O14 on Catalytic Performance in Selective Propene Oxidation to Acrolein
Effects of Anion Substitution in (Mo,V)5O14 on Catalytic Performance in Selective Propene Oxidation to Acrolein
复制标题
(Mo,V)5O14 阴离子取代对丙烯选择性氧化制丙烯醛催化性能的影响
DOI:
10.1002/cctc.201501076
复制
发表时间:
2016
期刊:
影响因子:
4.5
通讯作者:
T. Ressler
中科院分区:
文献类型:
--
作者:
S. Kuhn;D. Weber;M. Lerch;T. Ressler
Molybdenum‐based mixed oxides represent well‐known model catalysts for the selective oxidation of light alkenes. Here, the anion lattice of (Mo,V)5O14was for the first time modified by substituting oxygen ions with nitrogen ions. Investigations by XRD analysis, X‐ray absorption spectroscopy, and FTIR spectroscopy revealed that the incorporation of nitrogen in the structure of Mo5O14proceeded without changing the average valence of metal centers. Additionally, impedance spectroscopy confirmed the formation of oxygen vacancies. Significant changes in conductivities remained after the removal of nitrogen. Temperature‐programmed reduction measurements were performed to investigate oxygen mobility. The enhanced reducibility of oxide nitrides correlated with the increased conductivity. Catalytic performance in selective propene oxidation was determined by online mass spectrometry und gas chromatography at different temperatures. Selectivity towards acrolein increased with increasing conductivity whereas the formation of total oxidation products COxdecreased.
登录
查看更多内容
影响因子:
5.3
作者:
M. Guerrero-Pérez;M. Bañares
通讯作者:
M. Guerrero-Pérez;M. Bañares
DOI:
--
发表时间:
1993
期刊:
影响因子:
--
作者:
F. Portemer;M. Sundberg;L. Kihlborg;M. Figlarz
通讯作者:
M. Figlarz
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
Thomas Franzke;Frank Rosowski;M. Muhler
通讯作者:
M. Muhler
DOI:
10.1021/jp804469a
发表时间:
2008-08
期刊:
The journal of physical chemistry. A
影响因子:
--
作者:
Xuefeng Wang;L. Andrews;R. Lindh;V. Veryazov;B. Roos
通讯作者:
Xuefeng Wang;L. Andrews;R. Lindh;V. Veryazov;B. Roos
DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
S. Knobl;G. Zenkovets;G. Kryukova;O. Ovsitser;D. Niemeyer;R. Schlögl;G. Mestl
通讯作者:
G. Mestl