Electrocatalytic Glucose Oxidation at Coral-Like Pd/C<sub>3</sub>N<sub>4</sub>-C Nanocomposites in Alkaline Media
Porous coral-like Pd/C<sub>3</sub>N<sub>4</sub>-C nanocomposites are fabricated by a simple one-pot chemical reduction method. Their electrocatalytic performance is ~50% higher than a carbon-loaded palladium electrocatalyst (Pd/C) in alkaline media. This confirms that the glu...
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MDPI AG
2020-04-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/10/4/440 |
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| author | Guang Dong Qingqing Lu Haihui Jiang Chunfang Li Yingying Gong Haoquan Zhang Wenpeng Li |
| author_facet | Guang Dong Qingqing Lu Haihui Jiang Chunfang Li Yingying Gong Haoquan Zhang Wenpeng Li |
| author_sort | Guang Dong |
| collection | DOAJ |
| description | Porous coral-like Pd/C<sub>3</sub>N<sub>4</sub>-C nanocomposites are fabricated by a simple one-pot chemical reduction method. Their electrocatalytic performance is ~50% higher than a carbon-loaded palladium electrocatalyst (Pd/C) in alkaline media. This confirms that the glucose electrooxidation and sensing performance of a Pd/C can be improved by the synergy of graphitic carbon nitride (C<sub>3</sub>N<sub>4</sub>), though C<sub>3</sub>N<sub>4</sub> exhibits poor electrical conductivity. Compared to Pd/C, the size of Pd nanoparticles in Pd/C<sub>3</sub>N<sub>4</sub>-C decreases. As a result, the activity of Pd/C<sub>3</sub>N<sub>4</sub>-C is enhanced due to the higher dispersion and the synergistic effect. Pd/C<sub>3</sub>N<sub>4</sub>-C presents a rapid response and high sensitivity to glucose. The sensitivity for glucose sensing at Pd/C<sub>3</sub>N<sub>4</sub>-C is 3.3 times that of at Pd/C in the range of 0.001–10 mM. In the lower range of 0.001–1 mM, the sensitivity at Pd/C<sub>3</sub>N<sub>4</sub>-C is ~10 times greater than Pd/C. |
| first_indexed | 2024-03-10T20:22:08Z |
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| id | doaj.art-581929e3ba3c40f3b6a0dd584b1a4e21 |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-10T20:22:08Z |
| publishDate | 2020-04-01 |
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| series | Catalysts |
| spelling | doaj.art-581929e3ba3c40f3b6a0dd584b1a4e212023-11-19T22:06:49ZengMDPI AGCatalysts2073-43442020-04-0110444010.3390/catal10040440Electrocatalytic Glucose Oxidation at Coral-Like Pd/C<sub>3</sub>N<sub>4</sub>-C Nanocomposites in Alkaline MediaGuang Dong0Qingqing Lu1Haihui Jiang2Chunfang Li3Yingying Gong4Haoquan Zhang5Wenpeng Li6Engineering & Technology Center of Electrochemistry, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, ChinaEngineering & Technology Center of Electrochemistry, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, ChinaEngineering & Technology Center of Electrochemistry, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, ChinaShandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, ChinaEngineering & Technology Center of Electrochemistry, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, ChinaEngineering & Technology Center of Electrochemistry, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, ChinaEngineering & Technology Center of Electrochemistry, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, ChinaPorous coral-like Pd/C<sub>3</sub>N<sub>4</sub>-C nanocomposites are fabricated by a simple one-pot chemical reduction method. Their electrocatalytic performance is ~50% higher than a carbon-loaded palladium electrocatalyst (Pd/C) in alkaline media. This confirms that the glucose electrooxidation and sensing performance of a Pd/C can be improved by the synergy of graphitic carbon nitride (C<sub>3</sub>N<sub>4</sub>), though C<sub>3</sub>N<sub>4</sub> exhibits poor electrical conductivity. Compared to Pd/C, the size of Pd nanoparticles in Pd/C<sub>3</sub>N<sub>4</sub>-C decreases. As a result, the activity of Pd/C<sub>3</sub>N<sub>4</sub>-C is enhanced due to the higher dispersion and the synergistic effect. Pd/C<sub>3</sub>N<sub>4</sub>-C presents a rapid response and high sensitivity to glucose. The sensitivity for glucose sensing at Pd/C<sub>3</sub>N<sub>4</sub>-C is 3.3 times that of at Pd/C in the range of 0.001–10 mM. In the lower range of 0.001–1 mM, the sensitivity at Pd/C<sub>3</sub>N<sub>4</sub>-C is ~10 times greater than Pd/C.https://www.mdpi.com/2073-4344/10/4/440palladiumnitrogen carbideelectrocatalystsglucose electrooxidationnonenzymatic-glucose sensor |
| spellingShingle | Guang Dong Qingqing Lu Haihui Jiang Chunfang Li Yingying Gong Haoquan Zhang Wenpeng Li Electrocatalytic Glucose Oxidation at Coral-Like Pd/C<sub>3</sub>N<sub>4</sub>-C Nanocomposites in Alkaline Media Catalysts palladium nitrogen carbide electrocatalysts glucose electrooxidation nonenzymatic-glucose sensor |
| title | Electrocatalytic Glucose Oxidation at Coral-Like Pd/C<sub>3</sub>N<sub>4</sub>-C Nanocomposites in Alkaline Media |
| title_full | Electrocatalytic Glucose Oxidation at Coral-Like Pd/C<sub>3</sub>N<sub>4</sub>-C Nanocomposites in Alkaline Media |
| title_fullStr | Electrocatalytic Glucose Oxidation at Coral-Like Pd/C<sub>3</sub>N<sub>4</sub>-C Nanocomposites in Alkaline Media |
| title_full_unstemmed | Electrocatalytic Glucose Oxidation at Coral-Like Pd/C<sub>3</sub>N<sub>4</sub>-C Nanocomposites in Alkaline Media |
| title_short | Electrocatalytic Glucose Oxidation at Coral-Like Pd/C<sub>3</sub>N<sub>4</sub>-C Nanocomposites in Alkaline Media |
| title_sort | electrocatalytic glucose oxidation at coral like pd c sub 3 sub n sub 4 sub c nanocomposites in alkaline media |
| topic | palladium nitrogen carbide electrocatalysts glucose electrooxidation nonenzymatic-glucose sensor |
| url | https://www.mdpi.com/2073-4344/10/4/440 |
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