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

作者：Zhang Ling; Dong Wei; Li Wen cui^*

来源：New Carbon Materials, 2016, 31(4): 386-392.

DOI：10.1016/j.carbon.2016.08.065

• Gelatin
• Nitrogen-doped porous carbon
• Supercapacitor

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 m(2).g(-1) and 1.51 wt%, respectively.

• 出版日期2016-8
• 单位大连理工大学