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Influence of graphite as a shaping agent of Bi molybdate powders on their mechanical, physicochemical, and catalytic properties

Víctor G Baldovino-Medrano, Minh Thang Le, Isabel Van Driessche UGent, Els Bruneel UGent and Eric M Gaigneaux (2011) INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH. 50(9). p.5467-5477
abstract
The influence of using graphite (G) as a shaping agent for bismuth molybdate (BiMo) catalysts was analyzed. Shaping was done by tableting, with addition of different loadings of graphite (0, 0.5, 1, 3, 5, 7, and 10 wt %). The use of graphite during the pressing of bismuth molybdate powders eases tableting because of the lubricating properties of the former. Furthermore, the compressive strength of BiMo-G tablets is higher than that of pure BiMo. Concerning the physicochemical properties of BiMo-G, XRD and XPS showed that graphite changes neither the relative distribution of the crystallographic phases of bismuth molybdate nor the oxidation state of bismuth and molybdenum in the tableted powders. Consequently, the shaped BiMo-G catalysts displayed similar, or slightly better, performances in the selective oxidation of propylene to acrolein. TGA analysis of samples of BiMo-G confirmed the thermal stability of the catalysts under oxidative conditions. Graphite was observed to experience crystallization into the hexagonal 2H phase during the catalytic tests. The results reported herein demonstrate that graphite is an effective shaping agent for bismuth molybdate powders.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
SELECTIVE OXIDATION, BISMUTH MOLYBDATE, BINDER, OXYGEN, PERFORMANCE, ZEOLITE, DEHYDROGENATION, TEMPERATURE, PROPYLENE, BEHAVIOR
journal title
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Ind. Eng. Chem. Res.
volume
50
issue
9
pages
5467 - 5477
Web of Science type
Article
Web of Science id
000289764000055
JCR category
ENGINEERING, CHEMICAL
JCR impact factor
2.237 (2011)
JCR rank
30/132 (2011)
JCR quartile
1 (2011)
ISSN
0888-5885
DOI
10.1021/ie102473h
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1254134
handle
http://hdl.handle.net/1854/LU-1254134
date created
2011-06-06 15:51:38
date last changed
2011-06-10 10:51:29
@article{1254134,
  abstract     = {The influence of using graphite (G) as a shaping agent for bismuth molybdate (BiMo) catalysts was analyzed. Shaping was done by tableting, with addition of different loadings of graphite (0, 0.5, 1, 3, 5, 7, and 10 wt \%). The use of graphite during the pressing of bismuth molybdate powders eases tableting because of the lubricating properties of the former. Furthermore, the compressive strength of BiMo-G tablets is higher than that of pure BiMo. Concerning the physicochemical properties of BiMo-G, XRD and XPS showed that graphite changes neither the relative distribution of the crystallographic phases of bismuth molybdate nor the oxidation state of bismuth and molybdenum in the tableted powders. Consequently, the shaped BiMo-G catalysts displayed similar, or slightly better, performances in the selective oxidation of propylene to acrolein. TGA analysis of samples of BiMo-G confirmed the thermal stability of the catalysts under oxidative conditions. Graphite was observed to experience crystallization into the hexagonal 2H phase during the catalytic tests. The results reported herein demonstrate that graphite is an effective shaping agent for bismuth molybdate powders.},
  author       = {Baldovino-Medrano, V{\'i}ctor G and Le, Minh Thang and Van Driessche, Isabel and Bruneel, Els and Gaigneaux, Eric M},
  issn         = {0888-5885},
  journal      = {INDUSTRIAL \& ENGINEERING CHEMISTRY RESEARCH},
  keyword      = {SELECTIVE OXIDATION,BISMUTH MOLYBDATE,BINDER,OXYGEN,PERFORMANCE,ZEOLITE,DEHYDROGENATION,TEMPERATURE,PROPYLENE,BEHAVIOR},
  language     = {eng},
  number       = {9},
  pages        = {5467--5477},
  title        = {Influence of graphite as a shaping agent of Bi molybdate powders on their mechanical, physicochemical, and catalytic properties},
  url          = {http://dx.doi.org/10.1021/ie102473h},
  volume       = {50},
  year         = {2011},
}

Chicago
Baldovino-Medrano, Víctor G, Minh Thang Le, Isabel Van Driessche, Els Bruneel, and Eric M Gaigneaux. 2011. “Influence of Graphite as a Shaping Agent of Bi Molybdate Powders on Their Mechanical, Physicochemical, and Catalytic Properties.” Industrial & Engineering Chemistry Research 50 (9): 5467–5477.
APA
Baldovino-Medrano, Víctor G, Le, M. T., Van Driessche, I., Bruneel, E., & Gaigneaux, E. M. (2011). Influence of graphite as a shaping agent of Bi molybdate powders on their mechanical, physicochemical, and catalytic properties. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 50(9), 5467–5477.
Vancouver
1.
Baldovino-Medrano VG, Le MT, Van Driessche I, Bruneel E, Gaigneaux EM. Influence of graphite as a shaping agent of Bi molybdate powders on their mechanical, physicochemical, and catalytic properties. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH. 2011;50(9):5467–77.
MLA
Baldovino-Medrano, Víctor G, Minh Thang Le, Isabel Van Driessche, et al. “Influence of Graphite as a Shaping Agent of Bi Molybdate Powders on Their Mechanical, Physicochemical, and Catalytic Properties.” INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 50.9 (2011): 5467–5477. Print.