The effect of copper and silver on the properties of Au-ZnO catalyst and its activity in glycerol oxidation

Kaskow, Iveta; Decyk, Piotr; Sobczak, Izabela

doi:10.1016/j.apsusc.2018.02.285

Cited by 32 publications

(18 citation statements)

References 57 publications

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“…After the optimization of the reaction conditions, they managed to obtain LA with a 93% selectivity at a 99% GLY conversion (Table 6). Kaskow et al compared the effect of copper and silver on the catalytic activity of gold-based catalysts in GLY oxidation [156]. It was shown that the Cu-and Ag-doped Au/ZnO catalysts have different structure (Figure 23).…”

Section: Glycerolmentioning

confidence: 99%

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Ag-Based Catalysts in Heterogeneous Selective Oxidation of Alcohols: A Review

et al. 2018

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Alcohols (bioalcohols) is a class of chemicals that are used as a feedstock for the manufacturing of a large number of valuable intermediates in industrially important processes. Currently, sustainable technologies for selective conversion of alcohols utilize “green” oxidants, mainly, ambient air or oxygen. Due to the high affinity of oxygen towards silver, the latter serves as an active component of supported heterogeneous catalysts. In this review, we consider Ag-based catalysts that participate in gas- or liquid-phase oxidation of alcohols. Oxidation of methanol, ethanol, ethylene glycol, propylene glycol, glycerol, benzyl and allyl alcohols is mostly considered. A particular attention is paid to selective photooxidation of alcohols over Ag-based catalysts. We discuss the catalyst composition in terms of (1) the state of the active component, (2) the nature of the substrate, (3) support nature, and (4) the strength of the metal–support interactions.

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Section: Glycerolmentioning

confidence: 99%

mentioning

confidence: 99%

Ag-Based Catalysts in Heterogeneous Selective Oxidation of Alcohols: A Review

et al. 2018

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“…In recent years, many noble metal catalytic systems of ruthenium, molybdenum, tungsten, cobalt, chromium, manganese, gold, palladium, platinum, etc. were designed for the selective oxidation of GLY [3,4,[6][7][8][9][10][11][12][13][14][15][16][17][18]. Although such catalysts were expensive, they showed irreplaceable high catalytic performance.…”

Section: Introductionmentioning

confidence: 99%

Selective Oxidation of Glycerol Using 3% H2O2 Catalyzed by Supported Nano-Au Catalysts

Wang

Jin

et al. 2018

Catalysts

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A series of transition metal oxides or mixed oxides supported nano-Au catalysts were prepared for the selective oxidation of glycerol to glyceric acid using 3% H2O2. It was found that the composition and structure of supports significantly influenced the catalytic performance of catalysts. The mesoporous trimetal mixed oxide (CuNiAlO) supported nano-Au catalysts were more active in comparison with the others. In the present catalytic system, the highest glycerol conversion was 90.5%, while the selectivity of glyceric acid could reach 72%. Moreover, the catalytic performance remained after 11 times of reaction.

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“…Au has been found to be the best catalyst for the oxidation of EG owing to the fact that EG adsorbs strongly onto the surface of Au [15][16][17][18][19][20][21]. The highly dispersed Au particles on the metal oxides supports, including Co 3 O 4 , SnO x , MnO 2 , RuO 2 , etc., exhibit an extraordinarily high activity for the oxidation reaction of various materials at low temperatures [22][23][24][25][26] as well as for ORR [27,28]. Cerium(IV) oxide (CeO 2 ) is an attractive co-catalyst for various noble metals due to its oxygen vacancy, i.e.…”

Section: Introductionmentioning

confidence: 99%

Electrocatalytic activity of AuCeO2/C towards ethylene glycol oxidation and oxygen reduction reactions

Kepenienė¹,

Stagniūnaitė²,

Upskuvienė³

et al. 2020

chemija

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AuCeO 2 /C and Au/C catalysts were obtained by adsorption of AuNPs on the CeO 2 /C and pure carbon (C) substrates from an Au colloidal solution. It has been found that AuNPs of ca. 50 nm in size were adsorbed on the surfaces of CeO 2 /C and C; however, electrocatalytic activity of the investigated AuCeO 2 /C and Au/C catalysts was different. Ethylene glycol oxidation current density values are ca. 3 times higher on the AuCeO 2 /C catalyst as compared to those of the bare Au/C catalyst. Moreover, the AuCeO 2 /C catalyst showed more positive onset potentials, as well as higher current in the mixed-kinetic-diffusion region towards the oxygen reduction reaction in an alkaline medium compared to that of the Au/C catalyst.

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The effect of copper and silver on the properties of Au-ZnO catalyst and its activity in glycerol oxidation

Cited by 32 publications

References 57 publications

Ag-Based Catalysts in Heterogeneous Selective Oxidation of Alcohols: A Review

Ag-Based Catalysts in Heterogeneous Selective Oxidation of Alcohols: A Review

Selective Oxidation of Glycerol Using 3% H2O2 Catalyzed by Supported Nano-Au Catalysts

Electrocatalytic activity of AuCeO2/C towards ethylene glycol oxidation and oxygen reduction reactions

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