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pro vyhledávání: '"Keggin structure"'
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Akademický článek
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Publikováno v:
Materials Today: Proceedings. 51:2015-2021
Novel vanadium (IV)-substituted molybdo-phosphates were prepared by self-assembly of vanadyl sulfate and mono-phosphomolybdic anions. Morphology and structure of the phosphate compounds was analyzed by Scanning electron microscopy (SEM), X-ray diffra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd6fce74b90f3a51f6829a25790d7c9a
https://doi.org/10.1016/j.matpr.2021.06.039
https://doi.org/10.1016/j.matpr.2021.06.039
Autor:
Lucia R. Raddi de Araujo, Alexandre B. Gaspar, Fatima Maria Zanon Zotin, Arthur Henrique A. Gonçalves, João Carlos S. Soares
Publikováno v:
Catalysis Today. 381:143-153
One-step oxidative cleavage of cyclohexene to adipic acid using H2O2 as oxidizing agent and heteropolysalts as heterogeneous catalysts was successfully performed, without the use of additives, such as organic or inorganic acids. The K3PW12O40, K3PMo1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7cc3971d36e76992a38a764585b6d31
https://doi.org/10.1016/j.cattod.2020.07.052
https://doi.org/10.1016/j.cattod.2020.07.052
Publikováno v:
Frontiers in Chemistry, Vol 6 (2018)
Working under the supervisor of William Lawrence Bragg at the University of Manchester and being under the direct personal and scientific influence by Linus Pauling, Dr. James Fargher Keggin some 85 years ago published a highly unique discovery—the
Externí odkaz:
https://doaj.org/article/f0b51509d3c64b3a9430a2e77757b5aa
Publikováno v:
Catalysis Letters. 152:2412-2420
A series of ammonium salts of molybdovanadophosphoric acid with different metal substitution and x values (abbreviated as (NH4)1.85Mx, M=Cs, Cu and Fe) were synthesized to catalyze the partial oxidation of isobutane to methacrylic acid. By XRD, TG/DT
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::137abe37f7b06c7d9350102948d73626
https://doi.org/10.1007/s10562-021-03821-3
https://doi.org/10.1007/s10562-021-03821-3
Publikováno v:
Catalysis Letters. 152:2293-2301
Using etherification to convert glycerol into biofuel additives is an effective way to solve the current problem of excess glycerol. In this study, a series of environmentally friendly (x)HPW/ZrO2 catalysts were synthesized for the etherification of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b04796550d13a82ea98c2d1e371cee1
https://doi.org/10.1007/s10562-021-03818-y
https://doi.org/10.1007/s10562-021-03818-y
Publikováno v:
Inorganic Materials. 57:835-842
This paper reports the synthesis of compounds with the pyrochlore and hexagonal tungsten bronze structures via thermal decomposition of heteropolyoxometalates. Using aqueous solutions, we have synthesized tungstophosphatometalates with the Keggin str
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a38f007a6aa0c5080aeed7ff57985b63
https://doi.org/10.1134/s0020168521080069
https://doi.org/10.1134/s0020168521080069
Publikováno v:
Inorganic Chemistry. 60:10979-10989
In the present work, an attempt has been made to induce chirality in copper-substituted phosphotungstate (PW11Cu) by functionalization with (S)-(+)-1-phenylethylamine (S-PEA) via a ligand substitution approach. The formation of a N→Cu dative bond w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5bd4ee06b4a34c5b6d4d77756fabcc8d
https://doi.org/10.1021/acs.inorgchem.1c00636
https://doi.org/10.1021/acs.inorgchem.1c00636
Publikováno v:
Catalysis Today. 366:123-132
The pure and palladium doped 12-tungstophosphoric acid - H3PW12O40 (HPW) and its cesium salts CsxH3-xPW12O40 (x = 1, 2, 2.25 and 2.5) were prepared and characterized by thermal analysis, FTIR, XRD, BET and XPS methods. In this paper were determined t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::45c95790aec6a6611b628e8d6c0ca76a
https://doi.org/10.1016/j.cattod.2019.12.040
https://doi.org/10.1016/j.cattod.2019.12.040