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Electroless decoration of macroscale foam with nickel nano-spikes: A scalable route toward efficient catalyst electrodes

Zhao, Xin and Muench, Falk and Schaefer, Sandra and Brötz, Joachim and Duerrschnabel, Michael and Molina-Luna, Leopoldo and Kleebe, Hans-Joachim and Liu, Shouxin and Tan, Jia and Ensinger, Wolfgang :
Electroless decoration of macroscale foam with nickel nano-spikes: A scalable route toward efficient catalyst electrodes.
[Online-Edition: http://dx.doi.org/10.1016/j.elecom.2016.02.002]
In: Electrochemistry Communications, 65 pp. 39-43. ISSN 13882481
[Article] , (2016)

Official URL: http://dx.doi.org/10.1016/j.elecom.2016.02.002

Abstract

Electroless deposition of anisotropic catalyst layers is introduced as an efficient approach to fabricate high-performing multiscale electrode architectures. In the present study, a biomass-derived, solidified foam is coated with nickel nano-spikes. This results in an amplification of the surface area and an introduction of catalytic functionality, while the favorablemass transfer properties of the porous support are retained. Both the substrate and themetal film are produced using simple, readily scalable processes. The support is prepared fromliquefied saw-dust by self-foaming, and nickel deposition is performed by immersion in a hydrazine-based plating bath. The favorable functional properties of the nickel-coated foam are demonstrated in enzyme-free glucose sensing. Due to the large surface area and the high activity of the nickel nanofilm, an outstanding sensitivity of 8.1 mA mM(-1) cm(-2) and a low detection limit of 60 nM were achieved. (C) 2016 Elsevier B.V. All rights reserved.

Item Type: Article
Erschienen: 2016
Creators: Zhao, Xin and Muench, Falk and Schaefer, Sandra and Brötz, Joachim and Duerrschnabel, Michael and Molina-Luna, Leopoldo and Kleebe, Hans-Joachim and Liu, Shouxin and Tan, Jia and Ensinger, Wolfgang
Title: Electroless decoration of macroscale foam with nickel nano-spikes: A scalable route toward efficient catalyst electrodes
Language: English
Abstract:

Electroless deposition of anisotropic catalyst layers is introduced as an efficient approach to fabricate high-performing multiscale electrode architectures. In the present study, a biomass-derived, solidified foam is coated with nickel nano-spikes. This results in an amplification of the surface area and an introduction of catalytic functionality, while the favorablemass transfer properties of the porous support are retained. Both the substrate and themetal film are produced using simple, readily scalable processes. The support is prepared fromliquefied saw-dust by self-foaming, and nickel deposition is performed by immersion in a hydrazine-based plating bath. The favorable functional properties of the nickel-coated foam are demonstrated in enzyme-free glucose sensing. Due to the large surface area and the high activity of the nickel nanofilm, an outstanding sensitivity of 8.1 mA mM(-1) cm(-2) and a low detection limit of 60 nM were achieved. (C) 2016 Elsevier B.V. All rights reserved.

Journal or Publication Title: Electrochemistry Communications
Volume: 65
Publisher: ELSEVIER SCIENCE INC, NEW YORK, USA
Uncontrolled Keywords: Anisotropic nanoparticles, Electrode nanostructuring, Electroless plating, Biomass conversion, Enzyme-free glucose sensing
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Earth Science
11 Department of Materials and Earth Sciences > Earth Science > Geo-Material-Science
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Advanced Electron Microscopy (aem)
11 Department of Materials and Earth Sciences > Material Science > Material Analytics
11 Department of Materials and Earth Sciences > Material Science > Structure Research
Date Deposited: 06 Jun 2016 11:51
Official URL: http://dx.doi.org/10.1016/j.elecom.2016.02.002
Identification Number: doi:10.1016/j.elecom.2016.02.002
Funders: The ARM-F JEOL TEM used in this work has been partly funded by the German Research Foundation (DFG)., Xin Zhao, and Shouxin Liu gratefully acknowledge financial support from the National Key Technology R&D Program (2015BAD14B06) and the National Natural Science Foundation of China (No. 31570567, 31500467).
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