N-Doped holey carbon materials derived from a metal-free macrocycle cucurbit[6]uril assembly as an efficient electrocatalyst for the oxygen reduction reaction

2019 ◽  
Vol 55 (92) ◽  
pp. 13832-13835 ◽  
Author(s):  
Dongshuang Wu ◽  
Minna Cao ◽  
Hanhui You ◽  
Chuan Zhao ◽  
Rong Cao

The first example of the preparation of nitrogen-doped holey carbon (NHC) with abundant in-plane holes derived from a rigid macrocycle cucurbit[6]uril self-assembly is reported.

2018 ◽  
Vol 6 (2) ◽  
pp. 514-521 ◽  
Author(s):  
Annika Wütscher ◽  
Till Eckhard ◽  
Dennis Hiltrop ◽  
Katrin Lotz ◽  
Wolfgang Schuhmann ◽  
...  

2015 ◽  
Vol 174 ◽  
pp. 1017-1022 ◽  
Author(s):  
Liang Dong ◽  
Jianbing Zang ◽  
Jing Su ◽  
Yingdan Jia ◽  
Yanhui Wang ◽  
...  

2019 ◽  
Vol 467-468 ◽  
pp. 75-83 ◽  
Author(s):  
André L. Cazetta ◽  
Lucas Spessato ◽  
Karen C. Bedin ◽  
Isis P.F.A. Souza ◽  
Rafael A. Araújo ◽  
...  

RSC Advances ◽  
2021 ◽  
Vol 11 (47) ◽  
pp. 29555-29563
Author(s):  
Songlin Zhao ◽  
Fushan Chen ◽  
Qunfeng Zhang ◽  
Lingtao Meng

Nitrogen-doped porous carbon materials have high potential in metal-free electrocatalysts, which is essential for several renewable energy conversion systems.


Catalysts ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 864 ◽  
Author(s):  
Zhenhua Yao ◽  
Ruiyang Fan ◽  
Wangyang Ji ◽  
Tingxuan Yan ◽  
Maocong Hu

In this work, non-traditional metal-free polynitrogen chain N8− deposited on a nitrogen-doped carbon nanotubes (PN-NCNT) catalyst was successfully synthesized by a facile cyclic voltammetry (CV) approach, which was further tested in an oxygen reduction reaction (ORR). The formation of PN on NCNT was confirmed by attenuated total reflectance–Fourier transform infrared spectroscopy (ATR-FTIR) and Raman spectroscopy. Partial positive charge of carbon within NCNT facilitated electron transfer and accordingly induced the formation of more PN species compared to CNT substrate as determined by temperature-programmed decomposition (TPD). Rotating disk electrode (RDE) measurements suggested that a higher current density was achieved over PN-NCNT than that on PN-CNT catalyst, which can be attributed to formation of the larger amount of N8− on NCNT. Kinetic study suggested a four-electron pathway mechanism over PN-NCNT. Moreover, it showed long stability and good methanol tolerance, which indicates its great potential application. This work provides insights on designing and synthesizing non-traditional metal-free catalysts for ORR in fuel cells.


2018 ◽  
Vol 462 ◽  
pp. 65-72 ◽  
Author(s):  
Qin Xiang ◽  
Sha Li ◽  
Xuefeng Zou ◽  
Yujie Qiang ◽  
Bingbing Hu ◽  
...  

2017 ◽  
Vol 42 (2) ◽  
pp. 876-885 ◽  
Author(s):  
Linmin Cao ◽  
Zhipeng Lin ◽  
Jilin Huang ◽  
Xiang Yu ◽  
Xiaoxian Wu ◽  
...  

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