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Ligand-free gold nanoparticles supported on mesoporous carbon as electrocatalysts for CO2 reduction

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Ligand-free gold nanoparticles supported on mesoporous carbon as electrocatalysts for CO2 reduction. / Miola, Matteo; Hu, Xin Ming; Brandiele, Riccardo et al.

In: Journal of CO2 Utilization, Vol. 28, 01.12.2018, p. 50-58.

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

Harvard

Miola, M, Hu, XM, Brandiele, R, Bjerglund, ET, Grønseth, DK, Durante, C, Pedersen, SU, Lock, N, Skrydstrup, T & Daasbjerg, K 2018, 'Ligand-free gold nanoparticles supported on mesoporous carbon as electrocatalysts for CO2 reduction', Journal of CO2 Utilization, vol. 28, pp. 50-58. https://doi.org/10.1016/j.jcou.2018.09.009

APA

Miola, M., Hu, X. M., Brandiele, R., Bjerglund, E. T., Grønseth, D. K., Durante, C., Pedersen, S. U., Lock, N., Skrydstrup, T., & Daasbjerg, K. (2018). Ligand-free gold nanoparticles supported on mesoporous carbon as electrocatalysts for CO2 reduction. Journal of CO2 Utilization, 28, 50-58. https://doi.org/10.1016/j.jcou.2018.09.009

CBE

MLA

Vancouver

Miola M, Hu XM, Brandiele R, Bjerglund ET, Grønseth DK, Durante C et al. Ligand-free gold nanoparticles supported on mesoporous carbon as electrocatalysts for CO2 reduction. Journal of CO2 Utilization. 2018 Dec 1;28:50-58. doi: 10.1016/j.jcou.2018.09.009

Author

Miola, Matteo ; Hu, Xin Ming ; Brandiele, Riccardo et al. / Ligand-free gold nanoparticles supported on mesoporous carbon as electrocatalysts for CO2 reduction. In: Journal of CO2 Utilization. 2018 ; Vol. 28. pp. 50-58.

Bibtex

@article{fda8ae9e0d4a4ebc80155000ea4bb018,
title = "Ligand-free gold nanoparticles supported on mesoporous carbon as electrocatalysts for CO2 reduction",
abstract = "Gold nanoparticles (AuNPs) have shown good catalytic activity for electrochemical CO2 reduction. However, they are typically stabilized by poorly conductive organic ligands which partially block their activity for electrocatalysis. In this work, we report a one-pot organic ligand-free synthesis of AuNPs on mesoporous carbon (MC). The size of the AuNPs is controlled by the micro- and mesoporosity of the carbon support and the mass ratio employed of the gold precursor/MC. The produced AuNPs-MC hybrid material, with the largest amount of small AuNPs (1-3 nm), shows good catalytic activity for the electrochemical reduction of CO2 to CO in aqueous electrolyte. The optimized selectivity is recorded to be, on average, 80% with a mass activity of 12.8 A g-1 at an overpotential of 550 mV. The catalyst stability of the material is investigated to give insight into the irreversible deactivation mechanism occurring at the surface of AuNPs. Using 6-mercapto-1-hexanol as the ligand on AuNPs shows a dual effect in terms of an improved stability but a lowered activity.",
keywords = "CO reduction, Deactivation, Electrocatalysis, Gold nanoparticles, Mesoporous carbon",
author = "Matteo Miola and Hu, {Xin Ming} and Riccardo Brandiele and Bjerglund, {Emil Tveden} and Gr{\o}nseth, {Didrik Konow} and Christian Durante and Pedersen, {Steen Uttrup} and Nina Lock and Troels Skrydstrup and Kim Daasbjerg",
year = "2018",
month = dec,
day = "1",
doi = "10.1016/j.jcou.2018.09.009",
language = "English",
volume = "28",
pages = "50--58",
journal = "Journal of CO2 Utilization",
issn = "2212-9820",
publisher = "Elsevier BV",

}

RIS

TY - JOUR

T1 - Ligand-free gold nanoparticles supported on mesoporous carbon as electrocatalysts for CO2 reduction

AU - Miola, Matteo

AU - Hu, Xin Ming

AU - Brandiele, Riccardo

AU - Bjerglund, Emil Tveden

AU - Grønseth, Didrik Konow

AU - Durante, Christian

AU - Pedersen, Steen Uttrup

AU - Lock, Nina

AU - Skrydstrup, Troels

AU - Daasbjerg, Kim

PY - 2018/12/1

Y1 - 2018/12/1

N2 - Gold nanoparticles (AuNPs) have shown good catalytic activity for electrochemical CO2 reduction. However, they are typically stabilized by poorly conductive organic ligands which partially block their activity for electrocatalysis. In this work, we report a one-pot organic ligand-free synthesis of AuNPs on mesoporous carbon (MC). The size of the AuNPs is controlled by the micro- and mesoporosity of the carbon support and the mass ratio employed of the gold precursor/MC. The produced AuNPs-MC hybrid material, with the largest amount of small AuNPs (1-3 nm), shows good catalytic activity for the electrochemical reduction of CO2 to CO in aqueous electrolyte. The optimized selectivity is recorded to be, on average, 80% with a mass activity of 12.8 A g-1 at an overpotential of 550 mV. The catalyst stability of the material is investigated to give insight into the irreversible deactivation mechanism occurring at the surface of AuNPs. Using 6-mercapto-1-hexanol as the ligand on AuNPs shows a dual effect in terms of an improved stability but a lowered activity.

AB - Gold nanoparticles (AuNPs) have shown good catalytic activity for electrochemical CO2 reduction. However, they are typically stabilized by poorly conductive organic ligands which partially block their activity for electrocatalysis. In this work, we report a one-pot organic ligand-free synthesis of AuNPs on mesoporous carbon (MC). The size of the AuNPs is controlled by the micro- and mesoporosity of the carbon support and the mass ratio employed of the gold precursor/MC. The produced AuNPs-MC hybrid material, with the largest amount of small AuNPs (1-3 nm), shows good catalytic activity for the electrochemical reduction of CO2 to CO in aqueous electrolyte. The optimized selectivity is recorded to be, on average, 80% with a mass activity of 12.8 A g-1 at an overpotential of 550 mV. The catalyst stability of the material is investigated to give insight into the irreversible deactivation mechanism occurring at the surface of AuNPs. Using 6-mercapto-1-hexanol as the ligand on AuNPs shows a dual effect in terms of an improved stability but a lowered activity.

KW - CO reduction

KW - Deactivation

KW - Electrocatalysis

KW - Gold nanoparticles

KW - Mesoporous carbon

UR - http://www.scopus.com/inward/record.url?scp=85053694592&partnerID=8YFLogxK

U2 - 10.1016/j.jcou.2018.09.009

DO - 10.1016/j.jcou.2018.09.009

M3 - Journal article

AN - SCOPUS:85053694592

VL - 28

SP - 50

EP - 58

JO - Journal of CO2 Utilization

JF - Journal of CO2 Utilization

SN - 2212-9820

ER -