期刊论文详细信息
Chemical Engineering Journal Advances 卷:4
Biochar obtained by carbonization of spent coffee grounds and its application in the construction of an energy storage device
Dionissios Mantzavinos1  John Vakros2  Panagiotis Lianos3  Tatiana Santos Andrade3 
[1] Department of Chemical Engineering, University of Patras, 26500 Patras, Greece;
[2] Corresponding authors.;
关键词: Biochar;    Spent coffee grounds;    Photocatalytic fuel cell;    Supercapacitor;   
DOI  :  
来源: DOAJ
【 摘 要 】

Biochar has been made by carbonization of spent coffee grounds without further activation and has been characterized by several techniques revealing a material with a satisfactory balance of microporosity with meso and macroporosity. The material was fairly pure with 96% of its mass made of carbon and oxygen, 2.2% of K and the rest of unidentified minerals. This biochar was used to make a supercapacitor electrode combined with a photocatalytic fuel cell as an electric power source. It has been shown that the present biochar does apply as material to make a supercapacitor with specific capacitance mounting up to 200 Fg−1. Its combination with a photocatalytic fuel cell can be designed into a very simple system which provides several functions in one single device: solar energy conversion, photocatalytic degradation of an organic substance and storing of electric energy in a supercapacitor.

【 授权许可】

Unknown   

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