自动氧化
碳纤维
化学能
化学
阴极
氧气
儿茶酚
化学工程
电池(电)
储能
材料科学
有机化学
功率(物理)
复合材料
热力学
物理
工程类
复合数
物理化学
作者
Junyan Wang,Wanchun Guo,Kesong Tian,Xinta Li,Xinyu Wang,Panhua Li,Yu Zhang,Bosen Zhang,Biao Zhang,Shuhu Liu,Xueai Li,Zhaopeng Xu,Jing Xu,Haiyan Wang,Yanglong Hou
标识
DOI:10.1007/s40820-023-01283-3
摘要
Highlights An air-breathing chemical self-charge concept of oxygen-enriched carbon cathode. The oxygen-enriched carbon material with abundant catechol groups. Rapid air-oxidation chemical self-charge of catechol groups. Abstract The self-charging concept has drawn considerable attention due to its excellent ability to achieve environmental energy harvesting, conversion and storage without an external power supply. However, most self-charging designs assembled by multiple energy harvesting, conversion and storage materials increase the energy transfer loss; the environmental energy supply is generally limited by climate and meteorological conditions, hindering the potential application of these self-powered devices to be available at all times. Based on aerobic autoxidation of catechol, which is similar to the electrochemical oxidation of the catechol groups on the carbon materials under an electrical charge, we proposed an air-breathing chemical self-charge concept based on the aerobic autoxidation of catechol groups on oxygen-enriched carbon materials to ortho -quinone groups. Energy harvesting, conversion and storage functions could be integrated on a single carbon material to avoid the energy transfer loss among the different materials. Moreover, the assembled Cu/oxygen-enriched carbon battery confirmed the feasibility of the air-oxidation self-charging/electrical discharging mechanism for potential applications. This air-breathing chemical self-charge concept could facilitate the exploration of high-efficiency sustainable air self-charging devices.
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