Improvement of spent coffee grounds-derived activated carbon for electric double layer capacitor by material modification and catalytic steam activation

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K21689
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Inorganic industrial materials; Design and evaluation of sustainable and environmental conscious system
• Research Institution: Industrial Research Institute of Shizuoka Prefecture
• Principal Investigator: Kikuchi Keisuke 静岡県工業技術研究所, 浜松工業技術支援センター材料科, 主任研究員 (90517369)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 炭化収率の増大 / 比表面積の増加 / 細孔分布の制御

Outline of Final Research Achievements

We studied modification of spent coffee grounds (SCG) and catalytic graphitization in order to improve specific surface area (SSA) and conductivity of SCG-derived activated carbon.
Regarding modification, composting and acid treatment were investigated. Pore diameter of activated carbon from composted SCG enlarged but SSA was not improved. In acid treatment, especially in benzenesulfonic acid treatment, SSA was significantly improved. Regarding catalytic steam activation by adding nickel to SCG, development of graphitization was not observed in X-ray diffraction spectrum. Facilitation of steam activation reaction, which we expected as another effect of nickel, was not also confirmed.

Free Research Field

炭素材料