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Boosted Catalytic Performance of Ni 2 Co 2 @T-PMo@ZIF-67 for Glucose Oxidation in a Direct-Glucose Fuel Cell.
- Source :
- Catalysts (2073-4344); Jan2024, Vol. 14 Issue 1, p19, 13p
- Publication Year :
- 2024
-
Abstract
- In this study, we report on how to design efficient catalysts for glucose oxidation via the transitional metal doping of nanohybrids of polyoxometalates (POMs) and metal-organic frameworks (MOFs). ZIF-67, a cobalt-based MOF, as well as phosphomolybdic acid (PMo), were used as precursors for the fabrication of pyrolyzed PMo@ZIF-67 (T-PMo@ZIF-67). A different amount of Ni<superscript>2+</superscript> was doped into PMo@ZIF-67 to produce Ni<subscript>x</subscript>Co<subscript>y</subscript>@T-PMo@ZIF-67. Among them, Ni<subscript>2</subscript>Co<subscript>2</subscript>@T-PMo@ZIF-67 had the best performance. The power density of the fuel cell that used Ni<subscript>2</subscript>Co<subscript>2</subscript>@T-PMo@ZIF-67 as an anode catalyst was 3.76 times that of the cell that used active carbon as an anode catalyst. SEM and EDS mapping results indicate that Ni<subscript>2</subscript>Co<subscript>2</subscript>@T-PMo@ZIF-67 has a spherical structure and rough surface, and elements such as cobalt, nickel, and molybdenum are evenly distributed. XRD characterization indicates that Co<subscript>3</subscript>O<subscript>4</subscript>, CoMoO<subscript>4</subscript>, CoNiO<subscript>4</subscript>, and MoNiO<subscript>4</subscript> co-exist in the composites. It is supposed that Co<superscript>2+</superscript>, Mo<superscript>6+</superscript>, and Ni<superscript>2+</superscript> in the composites may have synergistic effects on the catalytic oxidation of glucose. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 20734344
- Volume :
- 14
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- Catalysts (2073-4344)
- Publication Type :
- Academic Journal
- Accession number :
- 175050316
- Full Text :
- https://doi.org/10.3390/catal14010019