POLYMERS AND POLYMER MATRIX COMPOSITES |
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Preparation and Zinc Storage Properties of N/O/P Co-doped Melamine-based Porous Carbon Materials |
LI Pengjuan, ZOU Zhenyu, HUANG Pengfei, JIN Xin, WU Xiaoyu, LI Xiaoli*
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College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, China |
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Abstract In this work, via a hydrothermal process, melamine and hexa-p-aldehyde phenoxycyclotriphosphazene (HAPCP) were used as raw materials to prepare the cross-linking product rich in nitrogen, phosphorus, and oxygen, which was subsequently carbonized and activated to obtain the carbon-based electrode material for cathode of zinc-ion hybrid capacitors. The morphology, structure, and chemical composition of the carbon-based electrode material were characterized by means of scanning electron microscopy (SEM), X-ray diffractometry (XRD), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, and nitrogen adsorption-desorption test. The experiment indicated that the prepared carbon-based material had a porous and rough surface morphology, amorphuous carbon structure, and contained nitrogen, phosphorus, and oxygen heteroatoms. The resultant product with a HAPCP/melamine molar ratio of 1∶5 and an activation temperature of 800 ℃ (HMAc-800) exhibited a specific capacitance of 390 F·g-1 at a current density of 0.5 A·g-1. The zinc-ion hybrid capacitor, assembled with HMAc-800 as the cathode material and a zinc sheet as the anode, delivered a power density of 456 W·kg-1 at an energy density of 139 Wh·kg-1, demonstrated a strong energy storage capacity.
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Published: 25 January 2025
Online: 2025-01-21
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