Active Site Formation for Oxygen Reduction Reaction on Carbon-Support-Free Titanium Oxynitride with Boosted Activity in Acidic Media

2017 ◽  
Vol 1 (1) ◽  
pp. 211-219 ◽  
Author(s):  
Mitsuharu Chisaka ◽  
Yusuke Yamamoto ◽  
Noriaki Itagaki ◽  
Yuhei Hattori
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Active Site ◽  
Carbon Support ◽  
Reduction Reaction ◽  
Site Formation ◽  
Acidic Media

The role of pre-defined microporosity in catalytic site formation for the oxygen reduction reaction in iron- and nitrogen-doped carbon materials

2017 ◽  
Vol 5 (8) ◽  
pp. 4199-4206 ◽  
Author(s):  
Minhyoung Kim ◽  
Hee Soo Kim ◽  
Sung Jong Yoo ◽  
Won Cheol Yoo ◽  
Yung-Eun Sung
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Active Site ◽  
Carbon Materials ◽  
Carbon Support ◽  
Reduction Reaction ◽  
Site Formation ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon

We investigated the carbon support microporosity effect on active site formation for the oxygen reduction reaction in Fe–N–C catalysts.

Cobalt-carbon nanofibers as an efficient support-free catalyst for oxygen reduction reaction with a systematic study of active site formation

2015 ◽  
Vol 3 (27) ◽  
pp. 14284-14290 ◽  
Author(s):  
MinJoong Kim ◽  
Do-Hwan Nam ◽  
Hee-Young Park ◽  
ChoRong Kwon ◽  
KwangSup Eom ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Carbon Nanofibers ◽  
Systematic Study ◽  
Active Site ◽  
Reduction Reaction ◽  
Site Formation

We report electrospun Co-carbon nanofibers as an efficient ORR catalyst and a study of active site formation.

Nano-TaOxNy particles synthesized from oxy-tantalum phthalocyanine: how to prepare precursors to enhance the oxygen reduction reaction activity after ammonia pyrolysis?

2015 ◽  
Vol 3 (32) ◽  
pp. 16414-16418 ◽  
Author(s):  
M. Chisaka ◽  
A. Ishihara ◽  
N. Uehara ◽  
M. Matsumoto ◽  
H. Imai ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Active Site ◽  
Reduction Reaction ◽  
Acidic Media ◽  
Oxygen Reduction Reaction Activity

Nano-TaOxNy oxygen reduction reaction catalysts with a new active site, slightly oxidized-Ta3N5, were synthesized for use in acidic media.

Effect of Carbon Support on Fe-N3/C Model Active Site for the Oxygen Reduction Reaction

2019 ◽  
Vol 92 (8) ◽  
pp. 523-532 ◽  
Author(s):  
Holly M Fruehwald ◽  
Olena V Zenkina ◽  
E. Bradley Easton
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Active Site ◽  
Carbon Support ◽  
Reduction Reaction

Development of high stable Pt-based ORR catalyst over Mn-modified polyaniline-based carbon nanofiber

2021 ◽  
Author(s):  
Hong Zhu ◽  
Qingjun Chen ◽  
Jinghua Yu ◽  
Qian Zhou ◽  
Fanghui Wang ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Proton Exchange Membrane ◽  
Carbon Nanofiber ◽  
Carbon Support ◽  
Reduction Reaction ◽  
Proton Exchange ◽  
Key Factors ◽  
Exchange Membrane

The corrosion of carbon support is one of key factors causing deactivation of Pt-based oxygen reduction reaction (ORR) catalysts for proton exchange membrane fuel cells. In this work, a highly...

scholarly journals Superior FexN electrocatalyst derived from 1,1′-diacetylferrocene for oxygen reduction reaction in alkaline and acidic media

2020 ◽  
Vol 9 (1) ◽  
pp. 843-852
Author(s):  
Hunan Jiang ◽  
Jinyang Li ◽  
Mengni Liang ◽  
Hanpeng Deng ◽  
Zuowan Zhou
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Current Density ◽  
Active Sites ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
Acidic Media ◽  
Onset Potential ◽  
Acidic And Alkaline Media ◽  
The Stability

AbstractAlthough Fe–N/C catalysts have received increasing attention in recent years for oxygen reduction reaction (ORR), it is still challenging to precisely control the active sites during the preparation. Herein, we report FexN@RGO catalysts with the size of 2–6 nm derived from the pyrolysis of graphene oxide and 1,1′-diacetylferrocene as C and Fe precursors under the NH3/Ar atmosphere as N source. The 1,1′-diacetylferrocene transforms to Fe3O4 at 600°C and transforms to Fe3N and Fe2N at 700°C and 800°C, respectively. The as-prepared FexN@RGO catalysts exhibited superior electrocatalytic activities in acidic and alkaline media compared with the commercial 10% Pt/C, in terms of electrochemical surface area, onset potential, half-wave potential, number of electrons transferred, kinetic current density, and exchange current density. In addition, the stability of FGN-8 also outperformed commercial 10% Pt/C after 10000 cycles, which demonstrates the as-prepared FexN@RGO as durable and active ORR catalysts in acidic media.

Recent Advances in Non-Precious Metal Electrocatalysts for Oxygen Reduction in Acidic Media and PEMFCs: An Activity, Stability and Mechanism Study

2021 ◽  
Author(s):  
Suojiang Zhang ◽  
jiayao Cui ◽  
Qingjun Chen ◽  
Xiaojin Li
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Precious Metal ◽  
Platinum Group Metal ◽  
Reduction Reaction ◽  
Proton Exchange ◽  
Mechanism Study ◽  
Acidic Media ◽  
Intensive Research ◽  
Limited Supply

The high cost and limited supply of platinum has driven intensive research into the use of non-platinum group metal (PGM-free) as cathode oxygen reduction reaction (ORR) catalysts for proton exchange...

Sign in / Sign up

Export Citation Format

Share Document