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Ren Su

Promotion Mechanisms of Au Supported on TiO2 in Thermal- And Photocatalytic Glycerol Conversion

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Standard

Promotion Mechanisms of Au Supported on TiO2 in Thermal- And Photocatalytic Glycerol Conversion. / Shen, Yanbin; Mamakhel, Aref; Liu, Xi; Hansen, Thomas W.; Tabanelli, Tommaso; Bonincontro, Danilo; Iversen, Bo B.; Prati, Laura; Li, Yongwang; Niemantsverdriet, J. W.Hans; Hutchings, Graham; Dimitratos, Nikolaos; Villa, Alberto; Su, Ren.

In: Journal of Physical Chemistry C, Vol. 123, No. 32, 2019, p. 19734-19741.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Harvard

Shen, Y, Mamakhel, A, Liu, X, Hansen, TW, Tabanelli, T, Bonincontro, D, Iversen, BB, Prati, L, Li, Y, Niemantsverdriet, JWH, Hutchings, G, Dimitratos, N, Villa, A & Su, R 2019, 'Promotion Mechanisms of Au Supported on TiO2 in Thermal- And Photocatalytic Glycerol Conversion', Journal of Physical Chemistry C, vol. 123, no. 32, pp. 19734-19741. https://doi.org/10.1021/acs.jpcc.9b05475

APA

Shen, Y., Mamakhel, A., Liu, X., Hansen, T. W., Tabanelli, T., Bonincontro, D., Iversen, B. B., Prati, L., Li, Y., Niemantsverdriet, J. W. H., Hutchings, G., Dimitratos, N., Villa, A., & Su, R. (2019). Promotion Mechanisms of Au Supported on TiO2 in Thermal- And Photocatalytic Glycerol Conversion. Journal of Physical Chemistry C, 123(32), 19734-19741. https://doi.org/10.1021/acs.jpcc.9b05475

CBE

Shen Y, Mamakhel A, Liu X, Hansen TW, Tabanelli T, Bonincontro D, Iversen BB, Prati L, Li Y, Niemantsverdriet JWH, Hutchings G, Dimitratos N, Villa A, Su R. 2019. Promotion Mechanisms of Au Supported on TiO2 in Thermal- And Photocatalytic Glycerol Conversion. Journal of Physical Chemistry C. 123(32):19734-19741. https://doi.org/10.1021/acs.jpcc.9b05475

MLA

Vancouver

Shen Y, Mamakhel A, Liu X, Hansen TW, Tabanelli T, Bonincontro D et al. Promotion Mechanisms of Au Supported on TiO2 in Thermal- And Photocatalytic Glycerol Conversion. Journal of Physical Chemistry C. 2019;123(32):19734-19741. https://doi.org/10.1021/acs.jpcc.9b05475

Author

Shen, Yanbin ; Mamakhel, Aref ; Liu, Xi ; Hansen, Thomas W. ; Tabanelli, Tommaso ; Bonincontro, Danilo ; Iversen, Bo B. ; Prati, Laura ; Li, Yongwang ; Niemantsverdriet, J. W.Hans ; Hutchings, Graham ; Dimitratos, Nikolaos ; Villa, Alberto ; Su, Ren. / Promotion Mechanisms of Au Supported on TiO2 in Thermal- And Photocatalytic Glycerol Conversion. In: Journal of Physical Chemistry C. 2019 ; Vol. 123, No. 32. pp. 19734-19741.

Bibtex

@article{b5603a7c198a414b89b8a0deefa6226a,
title = "Promotion Mechanisms of Au Supported on TiO2 in Thermal- And Photocatalytic Glycerol Conversion",
abstract = "Catalytic glycerol conversion by means of either photon or thermal energy is of great importance and can be realized by metal supported on TiO2 systems. Although various procedures have been employed to synthesize efficient metal/TiO2 catalysts, the promotional mechanisms for both reactions are still unclear due to the lack of well-defined systems. Here, we have deposited gold nanoparticles on a series of highly crystalline anatase TiO2 substrates with different crystallite sizes (7, 12, 16, 28 nm) by both direct precipitation and sol-immobilization methods to examine the effect of metal deposition methods and TiO2 sizes on both photo- and thermal catalytic glycerol reforming. For photocatalytic H2 evolution from glycerol, optimum performance was observed for the Au supported on 12 nm TiO2 for both deposition methods. For thermal catalytic glycerol oxidation, all catalysts show a similar selectivity to glycerate (>70%) regardless of the TiO2 size and metal deposition method; however, the metal deposition method significantly influences the catalytic activity. In situ UV-vis spectrometry reveals that the optimized photocatalytic performance originates from enhanced charge transfer kinetics and a more negative Fermi level for proton reduction, whereas electrochemical analysis reveals that the promoted glycerol oxidation is caused by the enhanced oxygen reduction half-reaction.",
keywords = "BASE, CATALYZED OXIDATION, DIHYDROXYACETONE, GOLD, HYDROGEN-PRODUCTION, NANOPARTICLES, PD, SELECTIVE OXIDATION, SIZE, WATER",
author = "Yanbin Shen and Aref Mamakhel and Xi Liu and Hansen, {Thomas W.} and Tommaso Tabanelli and Danilo Bonincontro and Iversen, {Bo B.} and Laura Prati and Yongwang Li and Niemantsverdriet, {J. W.Hans} and Graham Hutchings and Nikolaos Dimitratos and Alberto Villa and Ren Su",
year = "2019",
doi = "10.1021/acs.jpcc.9b05475",
language = "English",
volume = "123",
pages = "19734--19741",
journal = "The Journal of Physical Chemistry Part C",
issn = "1932-7447",
publisher = "American Chemical Society",
number = "32",

}

RIS

TY - JOUR

T1 - Promotion Mechanisms of Au Supported on TiO2 in Thermal- And Photocatalytic Glycerol Conversion

AU - Shen, Yanbin

AU - Mamakhel, Aref

AU - Liu, Xi

AU - Hansen, Thomas W.

AU - Tabanelli, Tommaso

AU - Bonincontro, Danilo

AU - Iversen, Bo B.

AU - Prati, Laura

AU - Li, Yongwang

AU - Niemantsverdriet, J. W.Hans

AU - Hutchings, Graham

AU - Dimitratos, Nikolaos

AU - Villa, Alberto

AU - Su, Ren

PY - 2019

Y1 - 2019

N2 - Catalytic glycerol conversion by means of either photon or thermal energy is of great importance and can be realized by metal supported on TiO2 systems. Although various procedures have been employed to synthesize efficient metal/TiO2 catalysts, the promotional mechanisms for both reactions are still unclear due to the lack of well-defined systems. Here, we have deposited gold nanoparticles on a series of highly crystalline anatase TiO2 substrates with different crystallite sizes (7, 12, 16, 28 nm) by both direct precipitation and sol-immobilization methods to examine the effect of metal deposition methods and TiO2 sizes on both photo- and thermal catalytic glycerol reforming. For photocatalytic H2 evolution from glycerol, optimum performance was observed for the Au supported on 12 nm TiO2 for both deposition methods. For thermal catalytic glycerol oxidation, all catalysts show a similar selectivity to glycerate (>70%) regardless of the TiO2 size and metal deposition method; however, the metal deposition method significantly influences the catalytic activity. In situ UV-vis spectrometry reveals that the optimized photocatalytic performance originates from enhanced charge transfer kinetics and a more negative Fermi level for proton reduction, whereas electrochemical analysis reveals that the promoted glycerol oxidation is caused by the enhanced oxygen reduction half-reaction.

AB - Catalytic glycerol conversion by means of either photon or thermal energy is of great importance and can be realized by metal supported on TiO2 systems. Although various procedures have been employed to synthesize efficient metal/TiO2 catalysts, the promotional mechanisms for both reactions are still unclear due to the lack of well-defined systems. Here, we have deposited gold nanoparticles on a series of highly crystalline anatase TiO2 substrates with different crystallite sizes (7, 12, 16, 28 nm) by both direct precipitation and sol-immobilization methods to examine the effect of metal deposition methods and TiO2 sizes on both photo- and thermal catalytic glycerol reforming. For photocatalytic H2 evolution from glycerol, optimum performance was observed for the Au supported on 12 nm TiO2 for both deposition methods. For thermal catalytic glycerol oxidation, all catalysts show a similar selectivity to glycerate (>70%) regardless of the TiO2 size and metal deposition method; however, the metal deposition method significantly influences the catalytic activity. In situ UV-vis spectrometry reveals that the optimized photocatalytic performance originates from enhanced charge transfer kinetics and a more negative Fermi level for proton reduction, whereas electrochemical analysis reveals that the promoted glycerol oxidation is caused by the enhanced oxygen reduction half-reaction.

KW - BASE

KW - CATALYZED OXIDATION

KW - DIHYDROXYACETONE

KW - GOLD

KW - HYDROGEN-PRODUCTION

KW - NANOPARTICLES

KW - PD

KW - SELECTIVE OXIDATION

KW - SIZE

KW - WATER

UR - http://www.scopus.com/inward/record.url?scp=85070874625&partnerID=8YFLogxK

U2 - 10.1021/acs.jpcc.9b05475

DO - 10.1021/acs.jpcc.9b05475

M3 - Journal article

AN - SCOPUS:85070874625

VL - 123

SP - 19734

EP - 19741

JO - The Journal of Physical Chemistry Part C

JF - The Journal of Physical Chemistry Part C

SN - 1932-7447

IS - 32

ER -