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Research Paper

Nonenzymatic Alkaline Direct Glucose Fuel Cell With a Silicon Microchannel Plate Supported Electrocatalytic Electrode

[+] Author and Article Information
Bairui Tao

College of Communications and
Electronics Engineering,
Qiqihar University,
42 Wenhua Street, Qiqihar, Heilongjiang 161006, China;
National Laboratory for Infrared Physics,
Shanghai Institute of Technical Physics,
Chinese Academy of Sciences,
Shanghai 200083, China

JunHao Chu

National Laboratory for Infrared Physics,
Shanghai Institute of Technical Physics,
Chinese Academy of Sciences,
Shanghai 200083, China
e-mail: tbr_sir@163.com

1Corresponding author.

Contributed by the Advanced Energy Systems Division of ASME for publication in the Journal of Fuel Cell Science and Technology. Manuscript received September 8, 2012; final manuscript received April 24, 2013; published online June 17, 2013. Assoc. Editor: Jacob Brouwer.

J. Fuel Cell Sci. Technol 10(4), 041003 (Jun 17, 2013) (5 pages) Paper No: FC-12-1092; doi: 10.1115/1.4024605 History: Received September 08, 2012; Revised April 24, 2013

Highly active Pd-Ni/Si microchannel plate (MCP) electrocatalytic electrode has been synthesized by combining conventional microelectronics technology with electrochemical techniques. The obtained Pd-Ni/Si-MCP electrocatalytic electrode was characterized by SEM, energy dispersive spectrometer (EDS), XRD, and electrochemical measurements. The results show that Pd-Ni/Si-MCP electrocatalytic electrode possesses better stability and higher activity in comparison with Pd-Ni/Si prepared by the same procedure. The high performance of the fuel cell is mainly attributed to the increased kinetics of both the glucose oxidation reaction and oxygen reduction reaction, rendered by a better electrocatalytic activity of Pd-Ni nanoparticles, ordered microchannels, and high surface-to-volume ratio of backbone Si-MCP. Especially, the compatibility of silicon microelectronics processing could achieve monolithic integration of Si-based microfabricated fuel cells.

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Figures

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Fig. 5

Cyclic voltammograms of 100 times cycling: (a) in 1 M KOH solution; (b) in 1 M KOH with 1 M glucose

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Fig. 6

Chronoamperogram of electroactivity of (a) Pd-Ni/Si-MCP and (b) Pd-Ni/Si electrode at an oxidation potential −0.1 V for glucose electro-oxidation in the 1 M KOH and 1 M glucose aqueous solution at 25 °C

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Fig. 2

(a) Top-view SEM image of the Pd-Ni/Si-MCP; (b) cross-sectional SEM image of the Pd-Ni/Si-MCP before electroless nickel-palladium plating; (c) magnified pictures of the cross-sectional SEM images of the microstructure of the Pd-Ni/Si-MCP after electrochemical measurements; (d) X-ray diffraction pattern of the Pd-Ni/Si-MCP electrode

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Fig. 1

(a) Top-view SEM image of the microstructure of the silicon MCP. (b) Magnified pictures of the cross-sectional SEM images of the microstructure.

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Fig. 4

Cyclic voltammograms of the Pd-Ni/Si-MCP (solid curve) electrode and Pd-Ni/Si (dashed curve) in the absence (inset of Fig. 4) and presence of 1 M glucose in a 1.0 M KOH solution at a scan rate of 50 mVs−1 in the potential region from −0.6 to 0.2 V versus SCE

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Fig. 3

Cyclic voltammograms of the Pd-Ni/Si-MCP and Pd-Ni/Si composite in 1.0 M KOH aqueous solution with broad potential range at the scan rate of 50 mVs−1

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