Highly Porous Nitrogen-Doped Carbon-Supported Pt Nanoparticles with Enhanced Activity for the Oxygen Reduction Reaction in Alkaline Media

2017 ◽  
Vol 80 (8) ◽  
pp. 1043-1050 ◽  
Author(s):  
Naoki Tachibana ◽  
Saori Ikeda ◽  
Yasuyuki Yukawa ◽  
Masahiro Kawaguchi
2013 ◽  
Vol 38 (14) ◽  
pp. 5783-5788 ◽  
Author(s):  
Rongfang Wang ◽  
Keliang Wang ◽  
Hui Wang ◽  
Qizhao Wang ◽  
Julian Key ◽  
...  

2015 ◽  
Vol 8 (1) ◽  
pp. 221-229 ◽  
Author(s):  
Shuyan Gao ◽  
Keran Geng ◽  
Haiying Liu ◽  
Xianjun Wei ◽  
Min Zhang ◽  
...  

Amaranthus waste is reported to be a single precursor to synthesize highly porous nitrogen-doped carbon as a superior oxygen reduction electrocatalyst.


RSC Advances ◽  
2015 ◽  
Vol 5 (73) ◽  
pp. 59495-59505 ◽  
Author(s):  
Merilin Vikkisk ◽  
Ivar Kruusenberg ◽  
Sander Ratso ◽  
Urmas Joost ◽  
Eugene Shulga ◽  
...  

Nitrogen-doped carbon nanotube materials derived from dicyandiamide and cyanamide are highly active electrocatalysts for oxygen reduction reaction in alkaline media.


2012 ◽  
Vol 220 ◽  
pp. 306-316 ◽  
Author(s):  
Nemanja Gavrilov ◽  
Igor A. Pašti ◽  
Miodrag Mitrić ◽  
Jadranka Travas-Sejdić ◽  
Gordana Ćirić-Marjanović ◽  
...  

Author(s):  
Zheyang Mo ◽  
Weiyi Yang ◽  
Shuang Gao ◽  
Jian Ku Shang ◽  
Yajun Ding ◽  
...  

AbstractA highly porous nitrogen-doped carbon sphere (NPC) electrocatalyst was prepared through the carbonization of biomass carbon spheres mixed with urea and zinc chloride in N2 atmosphere. The sample carbonized at 1000 °C demonstrates a superior oxygen reduction reaction (ORR) performance over the Pt/C electrocatalyst, while its contents of pyridinic nitrogen and graphitic nitrogen are the lowest among samples synthesized at the same or lower carbonization temperatures. This unusual result is explained by a space confinement effect from the microporous and mesoporous structures in the microflakes, which induces the further reduction of peroxide ions or other oxygen species produced in the first step reduction to water to have the preferred overall four electron reduction ORR process. This work demonstrates that in addition to the amount or species of its active sites, the space confinement can be a new approach to enhance the ORR performance of precious-metal-free, nitrogen-doped carbon electrocatalysts.


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