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Regenerating Spent Solutions of Vanadium-containing Heteropoly Acids in the Presence of Additives. / Zhizhina, Elena G.; Rodikova, Yulia A.; Podyacheva, Olga Yu et al.

In: Zeitschrift fur Anorganische und Allgemeine Chemie, Vol. 644, No. 16, 31.08.2018, p. 869-876.

Research output: Contribution to journal › Article › peer-review

Harvard

Zhizhina, EG, Rodikova, YA, Podyacheva, OY & Pai, ZP 2018, 'Regenerating Spent Solutions of Vanadium-containing Heteropoly Acids in the Presence of Additives', Zeitschrift fur Anorganische und Allgemeine Chemie, vol. 644, no. 16, pp. 869-876. https://doi.org/10.1002/zaac.201800215

APA

Zhizhina, E. G., Rodikova, Y. A., Podyacheva, O. Y., & Pai, Z. P. (2018). Regenerating Spent Solutions of Vanadium-containing Heteropoly Acids in the Presence of Additives. Zeitschrift fur Anorganische und Allgemeine Chemie, 644(16), 869-876. https://doi.org/10.1002/zaac.201800215

Vancouver

Zhizhina EG, Rodikova YA, Podyacheva OY, Pai ZP. Regenerating Spent Solutions of Vanadium-containing Heteropoly Acids in the Presence of Additives. Zeitschrift fur Anorganische und Allgemeine Chemie. 2018 Aug 31;644(16):869-876. doi: 10.1002/zaac.201800215

Author

Zhizhina, Elena G. ; Rodikova, Yulia A. ; Podyacheva, Olga Yu et al. / Regenerating Spent Solutions of Vanadium-containing Heteropoly Acids in the Presence of Additives. In: Zeitschrift fur Anorganische und Allgemeine Chemie. 2018 ; Vol. 644, No. 16. pp. 869-876.

BibTeX

@article{105fa61800ab43cbbfa2db108a67c9fc,
title = "Regenerating Spent Solutions of Vanadium-containing Heteropoly Acids in the Presence of Additives",
abstract = "Vanadium-containing heteropoly acid solutions of Keggin H3+xPMo12–xVxO40 and modified HaPzMoyVxOb types (P-Mo-V HPAs) are promising nanosized inorganic metal-oxygen cluster compounds with the property of reversible oxidability (VV ↔ VIV). The oxidation of reduced P-Mo-V HPAs at a temperature of 130–170 °C and an oxygen pressure of 4 atm is a convenient method for their regeneration, but results in regeneration degree of only 75–88 %. Various materials with electron transfer or oxidative properties, such as nitrogen doped carbon nanofibers (N-CNFs), Sibunit-4, HNO3, and MoO2, were investigated as additives to facilitate and accelerate the regeneration of HPA solutions. Among the studied additives HNO3 was found to show the best efficiency, resulting in regeneration degree of higher 95 %. Rapid and efficient regeneration of spent HPA catalysts is an important criterion for achieving high productivity and sustainability of oxidative processes on their basis.",
keywords = "Additives, Electron transfer, Polyoxometalates, Redox chemistry, Regeneration, FORMIC-ACID, AQUEOUS-SOLUTIONS, DOPED CARBON NANOFIBERS, FUEL-CELL, HIGHLY SELECTIVE OXIDATION, HYDROLYTIC OXIDATION, EFFICIENT HETEROGENEOUS EPOXIDATION, CATALYTIC-OXIDATION, HYDROGEN-PEROXIDE, SILICOTUNGSTATE LIGANDS",
author = "Zhizhina, {Elena G.} and Rodikova, {Yulia A.} and Podyacheva, {Olga Yu} and Pai, {Zinaida P.}",
note = "Publisher Copyright: {\textcopyright} 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",
year = "2018",
month = aug,
day = "31",
doi = "10.1002/zaac.201800215",
language = "English",
volume = "644",
pages = "869--876",
journal = "Zeitschrift fur Anorganische und Allgemeine Chemie",
issn = "0044-2313",
publisher = "Wiley-VCH Verlag",
number = "16",

}

RIS

TY - JOUR

T1 - Regenerating Spent Solutions of Vanadium-containing Heteropoly Acids in the Presence of Additives

AU - Zhizhina, Elena G.

AU - Rodikova, Yulia A.

AU - Podyacheva, Olga Yu

AU - Pai, Zinaida P.

N1 - Publisher Copyright: © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

PY - 2018/8/31

Y1 - 2018/8/31

N2 - Vanadium-containing heteropoly acid solutions of Keggin H3+xPMo12–xVxO40 and modified HaPzMoyVxOb types (P-Mo-V HPAs) are promising nanosized inorganic metal-oxygen cluster compounds with the property of reversible oxidability (VV ↔ VIV). The oxidation of reduced P-Mo-V HPAs at a temperature of 130–170 °C and an oxygen pressure of 4 atm is a convenient method for their regeneration, but results in regeneration degree of only 75–88 %. Various materials with electron transfer or oxidative properties, such as nitrogen doped carbon nanofibers (N-CNFs), Sibunit-4, HNO3, and MoO2, were investigated as additives to facilitate and accelerate the regeneration of HPA solutions. Among the studied additives HNO3 was found to show the best efficiency, resulting in regeneration degree of higher 95 %. Rapid and efficient regeneration of spent HPA catalysts is an important criterion for achieving high productivity and sustainability of oxidative processes on their basis.

AB - Vanadium-containing heteropoly acid solutions of Keggin H3+xPMo12–xVxO40 and modified HaPzMoyVxOb types (P-Mo-V HPAs) are promising nanosized inorganic metal-oxygen cluster compounds with the property of reversible oxidability (VV ↔ VIV). The oxidation of reduced P-Mo-V HPAs at a temperature of 130–170 °C and an oxygen pressure of 4 atm is a convenient method for their regeneration, but results in regeneration degree of only 75–88 %. Various materials with electron transfer or oxidative properties, such as nitrogen doped carbon nanofibers (N-CNFs), Sibunit-4, HNO3, and MoO2, were investigated as additives to facilitate and accelerate the regeneration of HPA solutions. Among the studied additives HNO3 was found to show the best efficiency, resulting in regeneration degree of higher 95 %. Rapid and efficient regeneration of spent HPA catalysts is an important criterion for achieving high productivity and sustainability of oxidative processes on their basis.

KW - Additives

KW - Electron transfer

KW - Polyoxometalates

KW - Redox chemistry

KW - Regeneration

KW - FORMIC-ACID

KW - AQUEOUS-SOLUTIONS

KW - DOPED CARBON NANOFIBERS

KW - FUEL-CELL

KW - HIGHLY SELECTIVE OXIDATION

KW - HYDROLYTIC OXIDATION

KW - EFFICIENT HETEROGENEOUS EPOXIDATION

KW - CATALYTIC-OXIDATION

KW - HYDROGEN-PEROXIDE

KW - SILICOTUNGSTATE LIGANDS

UR - http://www.scopus.com/inward/record.url?scp=85050494196&partnerID=8YFLogxK

U2 - 10.1002/zaac.201800215

DO - 10.1002/zaac.201800215

M3 - Article

AN - SCOPUS:85050494196

VL - 644

SP - 869

EP - 876

JO - Zeitschrift fur Anorganische und Allgemeine Chemie

JF - Zeitschrift fur Anorganische und Allgemeine Chemie

SN - 0044-2313

IS - 16

ER -

ID: 25399507