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Electrochemical characterization of pyrophosphate-based catalysts for the oxidation of furfural in aqueous phase
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SYSNO ASEP 0483309 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Electrochemical characterization of pyrophosphate-based catalysts for the oxidation of furfural in aqueous phase Tvůrce(i) Bodišová, J. (SK)
Soták, T. (SK)
Naumowicz, M. (PL)
Sokolová, Romana (UFCH-W) RID, ORCID, SAI
Hronec, M. (SK)
Híveš, J. (SK)
Gál, M. (SK)Zdroj.dok. Journal of Electroanalytical Chemistry. - : Elsevier - ISSN 1572-6657
Roč. 891, JUL 2018 (2018), s. 126-130Poč.str. 5 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova Pyrophosphates ; Abrasive linear sweep voltammetry ; Carbon paste electrode Vědní obor RIV CG - Elektrochemie Obor OECD Analytical chemistry Institucionální podpora UFCH-W - RVO:61388955 UT WOS 000437818600020 EID SCOPUS 85036588734 DOI 10.1016/j.jelechem.2017.11.066 Anotace Furfural, an important renewable, non-petroleum based chemical feedstock is basic chemical during various synthesis and can be obtained from a variety of agricultural byproducts. Maleic acid used in the synthesis of lubricants, plasticizers, resins, copolymers etc. can be alternatively prepared by the selective oxidation of biomass-based furfural. In this contribution copper–phosphate based catalysts with alkaline earth metals in their structure are characterized by abrasive linear sweep voltammetry at carbon paste electrode. The importance of phase composition on the catalyst selectivity and overall furfural conversion of the respective samples is also discussed. Based on the voltammetric results and catalytic performance of the individual copper based catalysts it is possible to conclude that the presence of Cu(I) plays an important role in the selectivity of the respective catalysts. The highest selectivity to the desired product of furfural oxidation (Maleic acid) was achieved in the case of CaCuP2O7 with Ca:Cu = 1:1 ration. In the structure of this catalyst the highest amount of Cu(I) was determined. Results obtained by the electrochemical methods are supported and compared with other techniques. Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2019
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