A Change in the Specific Conductance of Solutions of High-Vanadium Heteropoly Acids in Redox Processes
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Translated
|
| Journal |
Kinetics and Catalysis
ISSN: 0023-1584
, E-ISSN: 1608-3210
|
| Output data |
Year: 2019,
Volume: 60,
Number: 6,
Pages: 787-792
Pages count
: 6
DOI:
10.1134/S0023158419050070
|
| Tags |
specific conductance, high-vanadium heteropoly acids, homogeneous oxidation catalysts |
| Authors |
Rodikova Yu.A.
1
,
Zhizhina E.G.
1
|
| Affiliations |
| 1 |
Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences
|
|
Funding (2)
|
1
|
Federal Agency for Scientific Organizations
|
0303-2016-0008
|
|
2
|
Russian Foundation for Basic Research
|
18-33-00073
|
Changes in the values of specific conductance χ of the solutions of high-vanadium Mо−V−Р heteropoly acids (HPA-х) in redox processes are determined for the first time for the HPA-7 solution of the overall composition Н10Р3Мо18V7O84, which is a highly efficient catalyst for oxidation processes. The dependences of χ on [HPA-7] at different temperatures and degrees of reduction m and the dependence of χ on m, are found. The relationship between χ and the equilibrium composition of the HPA-7 solution is shown. It was confirmed that the regenerated HPA-7 solutions completely restore their conductance and other physicochemical properties (redox potential E, density, viscosity, and pH), thereby proving the high stability as homogeneous catalysts of oxidative processes.