Advanced Electrocatalysts on the Basis of Bare Au Nanomaterials for Biofuel Cell Applications

Seydou Hebié; Yaovi Holade; Ksenia Maximova; Marc Sentis; Philippe Delaporte; Kouakou Boniface Kokoh; Teko W. Napporn; Andrei V. Kabashin

doi:10.1021/acscatal.5b01478

Advanced Electrocatalysts on the Basis of Bare Au Nanomaterials for Biofuel Cell Applications

Seydou Hebié, Yaovi Holade, Ksenia Maximova, Marc Sentis, Philippe Delaporte, Kouakou Boniface Kokoh, Teko W. Napporn^*, Andrei V. Kabashin

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

78 Citations (Scopus)

Abstract

We report a drastic enhancement of electrocatalytic activity toward glucose oxidation by using novel electrocatalysts on the basis of "bare" unprotected Au nanoparticles synthesized by methods of laser ablation in pure deionized water. The recorded current density of 2.65 A cm^-2 mg^-1 for glucose electrooxidation was higher than a relevant value for conventional chemically synthesized Au nanoparticles by an order of magnitude and outperformed all data reported in the literature for metal and metal alloy-based electrocatalysts. The enhanced electrocatalytic characteristics of laser-synthesized nanoparticles are explained by the absence of any organic contaminants or protective ligands on their surface, the relatively small size of nanoparticles, and their particular crystallographic structure. The employment of bare nanomaterials in glucose electrooxidation schemes promises a radical improvement in current biofuel cell technology and its successful application in bioimplantable devices.

Original language	English
Pages (from-to)	6489-6496
Number of pages	8
Journal	ACS Catalysis
Volume	5
Issue number	11
DOIs	https://doi.org/10.1021/acscatal.5b01478
Publication status	Published - 6 Nov 2015
Externally published	Yes

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title = "Advanced Electrocatalysts on the Basis of Bare Au Nanomaterials for Biofuel Cell Applications",

abstract = "We report a drastic enhancement of electrocatalytic activity toward glucose oxidation by using novel electrocatalysts on the basis of {"}bare{"} unprotected Au nanoparticles synthesized by methods of laser ablation in pure deionized water. The recorded current density of 2.65 A cm-2 mg-1 for glucose electrooxidation was higher than a relevant value for conventional chemically synthesized Au nanoparticles by an order of magnitude and outperformed all data reported in the literature for metal and metal alloy-based electrocatalysts. The enhanced electrocatalytic characteristics of laser-synthesized nanoparticles are explained by the absence of any organic contaminants or protective ligands on their surface, the relatively small size of nanoparticles, and their particular crystallographic structure. The employment of bare nanomaterials in glucose electrooxidation schemes promises a radical improvement in current biofuel cell technology and its successful application in bioimplantable devices.",

keywords = "bare gold nanoparticles, biofuel cells, electrooxidation, glucose electrocatalysts, laser ablation in liquids",

author = "Seydou Hebi{\'e} and Yaovi Holade and Ksenia Maximova and Marc Sentis and Philippe Delaporte and Kokoh, {Kouakou Boniface} and Napporn, {Teko W.} and Kabashin, {Andrei V.}",

note = "Publisher Copyright: {\textcopyright} 2015 American Chemical Society.",

year = "2015",

month = nov,

day = "6",

doi = "10.1021/acscatal.5b01478",

language = "English",

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T1 - Advanced Electrocatalysts on the Basis of Bare Au Nanomaterials for Biofuel Cell Applications

AU - Hebié, Seydou

AU - Holade, Yaovi

AU - Maximova, Ksenia

AU - Sentis, Marc

AU - Delaporte, Philippe

AU - Kokoh, Kouakou Boniface

AU - Napporn, Teko W.

AU - Kabashin, Andrei V.

PY - 2015/11/6

Y1 - 2015/11/6

N2 - We report a drastic enhancement of electrocatalytic activity toward glucose oxidation by using novel electrocatalysts on the basis of "bare" unprotected Au nanoparticles synthesized by methods of laser ablation in pure deionized water. The recorded current density of 2.65 A cm-2 mg-1 for glucose electrooxidation was higher than a relevant value for conventional chemically synthesized Au nanoparticles by an order of magnitude and outperformed all data reported in the literature for metal and metal alloy-based electrocatalysts. The enhanced electrocatalytic characteristics of laser-synthesized nanoparticles are explained by the absence of any organic contaminants or protective ligands on their surface, the relatively small size of nanoparticles, and their particular crystallographic structure. The employment of bare nanomaterials in glucose electrooxidation schemes promises a radical improvement in current biofuel cell technology and its successful application in bioimplantable devices.

AB - We report a drastic enhancement of electrocatalytic activity toward glucose oxidation by using novel electrocatalysts on the basis of "bare" unprotected Au nanoparticles synthesized by methods of laser ablation in pure deionized water. The recorded current density of 2.65 A cm-2 mg-1 for glucose electrooxidation was higher than a relevant value for conventional chemically synthesized Au nanoparticles by an order of magnitude and outperformed all data reported in the literature for metal and metal alloy-based electrocatalysts. The enhanced electrocatalytic characteristics of laser-synthesized nanoparticles are explained by the absence of any organic contaminants or protective ligands on their surface, the relatively small size of nanoparticles, and their particular crystallographic structure. The employment of bare nanomaterials in glucose electrooxidation schemes promises a radical improvement in current biofuel cell technology and its successful application in bioimplantable devices.

KW - bare gold nanoparticles

KW - biofuel cells

KW - electrooxidation

KW - glucose electrocatalysts

KW - laser ablation in liquids

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DO - 10.1021/acscatal.5b01478

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VL - 5

SP - 6489

EP - 6496

JO - ACS Catalysis

JF - ACS Catalysis

IS - 11

ER -

Advanced Electrocatalysts on the Basis of Bare Au Nanomaterials for Biofuel Cell Applications

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