Selective oxidation of methanol over supported vanadium oxide catalysts as studied by solid-state NMR spectroscopy

Zeng, Danlin; Fang, Hanjun; Zheng, Anmin; Xu, Jun; Chen, Lei; Yang, Jeong-Mo; Wang, Jiqing; Ye, Chaohui; Deng, Feng

doi:10.1016/j.molcata.2007.02.009

Cited by 12 publications

(6 citation statements)

References 58 publications

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“…The physically adsorbed methanol is not observed, while a small amount of dimethyl ether with the 13 C signal at 59.0 ppm and the 1 H signal at 3.3 ppm is observed. 40 In addition to C 1 species, C 2+ species are also observed on ZnGa 2 O 4 , as shown in the through-bond 13 C– 13 C INADEQUATE NMR spectrum (lower one in Fig. 3b).…”

Section: Resultsmentioning

confidence: 84%

A mechanistic study of syngas conversion to light olefins over OXZEO bifunctional catalysts: insights into the initial carbon–carbon bond formation on the oxide

Chen

Liu

et al. 2022

Catal. Sci. Technol.

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Section: Resultsmentioning

confidence: 84%

A mechanistic study of syngas conversion to light olefins over OXZEO bifunctional catalysts: insights into the initial carbon–carbon bond formation on the oxide

Chen

Liu

et al. 2022

Catal. Sci. Technol.

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“…In modern heterogeneous catalysis, supported vanadium oxide catalysts constitute a very important class of catalytic materials. They have become the model for catalytic systems for fundamental studies of supported metal oxides and they are widely used as selective oxidation catalysts in the industrial production of economically attractive redox reactions, like the oxidation of methane, [1][2][3][4][5][6][7] propane, 8,9 butane, [10][11][12] toluene, [13][14][15][16][17] benzene, 18,19 propene, 20 o-xylene, 21 methanol, [22][23][24][25][26][27][28] ethanol, 29,30 formaldehyde, 31 several oxidative dehydrogenations, [32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47]…”

Section: Introductionmentioning

confidence: 99%

Supported vanadium oxide in heterogeneous catalysis: elucidating the structure–activity relationship with spectroscopy

Muylaert

Voort

2009

Phys. Chem. Chem. Phys.

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In order to design the next generation of catalysts, it is crucial that the insights of researchers in heterogeneous catalysis, materials design and spectroscopy are merged. Since the scientific community started to realize that the molecular pattern of a catalyst at room temperature and in vacuum does by no means reflect the actual structure of the catalytic species under working conditions, new spectroscopic techniques have been developed to study the catalytic species "while doing the job" or in Latin, "operando". In this contribution, we give an overview of recent developments in-at first sight-the simple case of supported VO(x) species. In the last few years, many issues on the nature of the active sites in supported VO(x) species have been questioned again, and the observations and conclusions summarized in this paper present a clear case of the importance of structure-activity relationships in rational catalyst design.

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“…In this regard, computational studies − and various experimental techniques including chromatography, ,− differential electrochemical mass spectrometry (DEMS) − in situ Fourier transform infrared spectroscopy (FTIR), ,,− and nuclear magnetic resonance (NMR) − have been successfully employed to give insights regarding the mechanism of the EOR occurring at the developed anode catalysts. Briefly, DEMS has proven to be a useful technique to investigate and quantify the volatile and gaseous species that are generated during the electrochemical reaction.…”

Section: Introductionmentioning

confidence: 99%

Overview on the Vital Step toward Addressing Platinum Catalyst Poisoning Mechanisms in Acid Media of Direct Ethanol Fuel Cells (DEFCs)

Altarawneh

2021

Energy Fuels

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Direct ethanol fuel cells (DEFCs) offer one of the attractive alternatives to conventional combustion technologies as low carbon power sources for vehicles and could become important power sources for consumer electronics and distributed power systems. They provide very high theoretical efficiency (97%), and ethanol is a safe, plentiful, and renewable resource that can be simply stored and handled through the current infrastructure. However, the development and commercialization of DEFCs are hampered by low practical efficiencies and the production of acetaldehyde and acetic acid byproducts as well as carbon monoxide. New anode catalysts are needed to solve these problems, and these need to be evaluated in terms of their electrochemical performance, efficiency, and emissions. In combination with computational studies, various experimental techniques including DEMS, in situ FTIR, and NMR could be employed to provide insights regarding the mechanisms of the ethanol electrooxidation reaction occurring at the newly designed anode catalysts. This insight is necessary to provide the understanding required to allow highly active catalytic materials to be developed and thus enhance the performance and efficiency of DEFCs.

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Selective oxidation of methanol over supported vanadium oxide catalysts as studied by solid-state NMR spectroscopy

Cited by 12 publications

References 58 publications

A mechanistic study of syngas conversion to light olefins over OXZEO bifunctional catalysts: insights into the initial carbon–carbon bond formation on the oxide

A mechanistic study of syngas conversion to light olefins over OXZEO bifunctional catalysts: insights into the initial carbon–carbon bond formation on the oxide

Supported vanadium oxide in heterogeneous catalysis: elucidating the structure–activity relationship with spectroscopy

Overview on the Vital Step toward Addressing Platinum Catalyst Poisoning Mechanisms in Acid Media of Direct Ethanol Fuel Cells (DEFCs)

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