Nitrogen-doped porous carbon with a 3D network structure produced from resorcinol-gelatin-formaldehyde co-polymers and its use as an electrode material for supercapacitors

ZHANG Ling; DONG Wei; LI Wen-cui

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Article Navigation > New Carbon Mater. > 2016 > 31(4): 386-392

ZHANG Ling, DONG Wei, LI Wen-cui. Nitrogen-doped porous carbon with a 3D network structure produced from resorcinol-gelatin-formaldehyde co-polymers and its use as an electrode material for supercapacitors. New Carbon Mater., 2016, 31(4): 386-392.

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Nitrogen-doped porous carbon with a 3D network structure produced from resorcinol-gelatin-formaldehyde co-polymers and its use as an electrode material for supercapacitors

Chemical Engineering, Dalian University of Technology, Dalian 116024, China

Funds: National Natural Science Foundation of China(21376047);Joint Funds of the National Natural Science Foundation of China(U1303192).

Received Date: 2016-06-10
Accepted Date: 2016-08-29
Rev Recd Date: 2016-08-01
Publish Date: 2016-08-28

Abstract

Abstract

Nitrogen-doped porous carbons (NPCs) with a three-dimensional network structure were prepared by the direct pyrolysis of resorcinol-gelatin-formaldehyde co-polymers, in which the biomacromolecule, gelatin acted as a nitrogen precursor. Their electrochemical properties as the electrodes of supercapacitors were evaluated with a three-electrode system. Since gelatin can affect the interfacial energy of the reaction liquid, the morphology of the co-polymers was changed into a three-dimensional framework consisting of small spheres. The nitrogen content of the NPCs increases from 1.04 to 2.03 wt% with the mass ratio of gelatin to resorcinol from 0.1 to 0.4. Their specific capacitance increases to 149 F·g^-1 with increasing nitrogen content and levels off when the nitrogen content is above 1.46%. After activation with water, the NPC has a high specific capacitance of 228 F·g^-1,and a specific surface area and nitrogen content of 1 174 m²·g^-1 and 1.51 wt%, respectively.
- Gelatin,
- Nitrogen-doped porous carbon,
- Supercapacitor

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References(17)

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