Enhanced Fe−N active site formation through interfacial energy control of precursor impregnation solution for the air cathode of membraneless direct formate fuel cells

Carbon ◽  
2021 ◽  
Author(s):  
Linghan Lan ◽  
Jun Li ◽  
Yang Yang ◽  
Lu Zhang ◽  
Liang Zhang ◽  
...  
2017 ◽  
Vol 56 (48) ◽  
pp. 14172-14181 ◽  
Author(s):  
Jianjun Chen ◽  
Jinxing Mi ◽  
Kezhi Li ◽  
Xiqin Wang ◽  
Elizabeth Dominguez Garcia ◽  
...  

2021 ◽  
Vol 4 (2) ◽  
pp. 1459-1466
Author(s):  
Subin Park ◽  
Min Her ◽  
Heejong Shin ◽  
Wonchan Hwang ◽  
Yung-Eun Sung

2014 ◽  
Vol 70 (10) ◽  
pp. 1610-1616 ◽  
Author(s):  
Huanan Wu ◽  
Min Lu ◽  
Lin Guo ◽  
Leonard Guan Hong Bay ◽  
Zheng Zhang ◽  
...  

Polyelectrolyte–single wall carbon nanotube (SCNT) composites are prepared by a solution-based method and used as metal-free cathode catalysts for oxygen reduction reaction (ORR) in air-cathode microbial fuel cells (MFCs). In this study, two types of polyelectrolytes, polydiallyldimethylammonium chloride (PDDA) and poly[bis(2-chloroethyl)ether-alt-1,3-bis[3-(dimethylamino)propyl]urea] (PEPU) are applied to decorate the SCNTs and the resulting catalysts exhibit remarkable catalytic ability toward ORR in MFC applications. The enhanced catalytic ability could be attributed to the positively charged quaternary ammonium sites of polyelectrolytes, which increase the oxygen affinity of SCNTs and reduce activation energy in the oxygen reduction process. It is also found that PEPU–SCNT composite-based MFCs show efficient performance with maximum power density of 270.1 mW m−2, comparable to MFCs with the benchmark Pt/C catalyst (375.3 mW m−2), while PDDA–SCNT composite-based MFCs produce 188.9 mW m−2. These results indicate that PEPU–SCNT and PDDA–SCNT catalysts are promising candidates as metal-free cathode catalysts for ORR in MFCs and could facilitate MFC scaling up and commercialization.


2009 ◽  
Vol 24 (10) ◽  
pp. 3144-3147 ◽  
Author(s):  
Christian J. Sund ◽  
Michael S. Wong ◽  
James J. Sumner

2008 ◽  
Vol 78 (5) ◽  
pp. 873-880 ◽  
Author(s):  
Yujie Feng ◽  
Xin Wang ◽  
Bruce E. Logan ◽  
He Lee

2013 ◽  
Vol 142 ◽  
pp. 109-114 ◽  
Author(s):  
Xiaoyuan Zhang ◽  
Juan Shi ◽  
Peng Liang ◽  
Jincheng Wei ◽  
Xia Huang ◽  
...  

2018 ◽  
Vol 38 (2) ◽  
pp. 380-386 ◽  
Author(s):  
Rodrigo J. Marassi ◽  
Marcos Igreja ◽  
Manzo Uchigasaki ◽  
Gilmar C. Silva

Sign in / Sign up

Export Citation Format

Share Document