title: Iron phthalocyanine supported on amino-functionalized multi-walled carbon nanotube as an alternative cathodic oxygen catalyst in microbial fuel cells.
abstract: Amino-functionalized multi-walled carbon nanotube (a-MWCNT)-supported iron phthalocyanine (FePc) (a-MWCNT/FePc) has been investigated as a catalyst for the oxygen reduction reaction (ORR) in an air-cathode single-chambered microbial fuel cell (MFC). Cyclic and linear sweep voltammogram are employed to investigate the electrocatalytic activity of the a-MWCNT/FePc for ORR. The maximum power density of 601 mWm(-2) is achieved from a MFC with the a-MWCNT/FePc cathode, which is the highest energy output compared to those MFCs with other materials supported FePc, such as carbon black, pristine MWCNT (p-MWCNT), carboxylic acid functionalized MWCNT (c-MWCNT), and even with a Pt/C cathode. Furthermore, cyclic voltammetry performed on the a-MWCNT/FePc electrode suggests that the a-MWCNT/FePc has an electrochemical activity for ORR via a four-electron pathway in a neutral pH solution. This work provides a potential alternative to Pt in MFCs for sustainable energy generation.
authors: Guangdong Institute of Eco-environmental and Soil Sciences, Guangzhou 510650, China. yuanyong@soil.gd.cn
authors: Yong
authors: Y
authors: Yuan
authors: Bo
authors: B
authors: Zhao
authors: Yongwon
authors: Y
authors: Jeon
authors: Shengkui
authors: S
authors: Zhong
authors: Shungui
authors: S
authors: Zhou
authors: Sunghyun
authors: S
authors: Kim
mesh_terms: D001674:Bioelectric Energy Sources; D002384:Catalysis; D004563:Electrochemistry; D004566:Electrodes; D005296:Ferrous Compounds / Q000737:chemistry*; D007211:Indoles / Q000737:chemistry*; D037742:Nanotubes, Carbon; D010100:Oxygen / Q000737:chemistry*
chemical_list: D005296:Ferrous Compounds; D007211:Indoles; D037742:Nanotubes, Carbon; C493990:iron phthalocyanine; D010100:Oxygen