Journal
RSC ADVANCES
Volume 10, Issue 11, Pages 6444-6451Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9ra08812a
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Funding
- National Key R&D Program of China [2019YFC1407800]
- Natural Science Foundation of Tianjin City [19YFZCSN01130]
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Metal nitrides are broadly applicable in the field of electrochemistry due to their excellent electrical properties. In this study, a 3D nanostructured Ni3N-Co3N catalyst was prepared by using a versatile urea glass method, and was tested as an anode catalyst for a glucose fuel cell. The synthesized Ni3N-Co3N exhibits uniform particle dispersion in structure, morphology, and composition, and has a interpenetrating three-dimensional network structure. Notably, the Ni3N-Co3N significantly improved the catalytic activity of glucose oxidation compared to Ni3N, Co3N, and conventional activated carbon electrodes. The superior electrochemical performance could be attributed to its porous structure and unique properties, which provided a fast transport network for charge and mass transfer as well as good synergetic effect. The glucose fuel cell equipped with a Ni3N-Co3N anode achieved 30.89 W m(-2) power and 97.66 A m(-2) current densities at room temperature. This investigation provides potential directions for the design of cost-effective bimetallic catalysts for a wide range of glucose fuel cell applications.
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