scholarly journals Pdpt Alloy Nanocubes As Electrocatalysts for Oxygen Reduction Reaction in Acid Media

2015 ◽  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Acid Media

Electrochemical and spectroscopic characterization of a dicobalt macrocyclic Pacman complex in the catalysis of the oxygen reduction reaction in acid media

2013 ◽  
Vol 17 (04) ◽  
pp. 252-258 ◽  
Author(s):  
Qinggang He ◽  
Xiao Cheng ◽  
Ying Wang ◽  
Ruimin Qiao ◽  
Wanli Yang ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reaction Pathway ◽  
Spectroscopic Characterization ◽  
Reduction Reaction ◽  
Acid Media ◽  
Crystal Fields ◽  
Mononuclear Cobalt ◽  
X Ray Absorption

The dicobalt complex [ Co2(L2) ] of a Schiff-base pyrrole macrocycle adopts a Pacman structure in solution and the solid state and shows much greater catalytic activity and selectivity for the four-electron oxygen reduction reaction (ORR) than the mononuclear cobalt phthalocyanine (CoPc) counterpart. Soft X-ray absorption spectroscopy (XAS) shows that the Co center in Co2(L2) is of the same valence as mononuclear CoPc . However, the former complex shows higher unoccupied Co 3d density which is believed to be beneficial for electron transfers. Furthermore, the XAS data suggests that the crystal fields for Co2(L2) and CoPc are different, and that an interaction remains between two Co atoms in Co2(L2) . DFT calculations imply that the sterically hindered, cofacial structure of the dicobalt complex is critical for the operation of the four-electron reaction pathway during the ORR.

A facile synthesis of porous N-doped carbon with hybridization of Fe3C nanoparticle-encased CNTs for an advanced oxygen reduction reaction electrocatalyst

2018 ◽  
Vol 5 (10) ◽  
pp. 2546-2553 ◽  
Author(s):  
Pingping Zhao ◽  
Hanqiu Nie ◽  
Jiahao Yu ◽  
Jianbo Wang ◽  
Gongzhen Cheng
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Facile Synthesis ◽  
Acid Media

Excellent ORR catalysis activity in both alkaline and acid media was found in porous N-doped carbon hybridized with Fe3C nanoparticle-encased CNTs by annealing ZIF-8, FeC2O4 and cyanoguanidine.

Designed Iron Single Atom Catalysts for Highly Efficient Oxygen Reduction Reaction in Alkaline and Acid Media

2020 ◽  
pp. 2001788
Author(s):  
Shiyong Zhao ◽  
Lianji Zhang ◽  
Bernt Johannessen ◽  
Martin Saunders ◽  
Chang Liu ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Single Atom ◽  
Acid Media ◽  
Highly Efficient

Oxygen reduction reaction activity of nitrogen-doped titanium oxide in acid media

2013 ◽  
Vol 88 ◽  
pp. 697-707 ◽  
Author(s):  
Mitsuharu Chisaka ◽  
Akimitsu Ishihara ◽  
Kazuaki Suito ◽  
Ken-ichiro Ota ◽  
Hirokazu Muramoto
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Titanium Oxide ◽  
Reduction Reaction ◽  
Oxygen Reduction Reaction Activity ◽  
Acid Media ◽  
Nitrogen Doped

Well-defined carbon polyhedrons prepared from nano metal–organic frameworks for oxygen reduction

2014 ◽  
Vol 2 (30) ◽  
pp. 11606-11613 ◽  
Author(s):  
Wei Xia ◽  
Jinghan Zhu ◽  
Wenhan Guo ◽  
Li An ◽  
Dingguo Xia ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Porous Carbon ◽  
Metal Organic Frameworks ◽  
Reduction Reaction ◽  
High Oxygen ◽  
Acid Media ◽  
Metal Organic

Well-defined porous carbon polyhedrons are synthesized directly from MOF nanocrystals and show high oxygen reduction reaction (ORR) catalytic activity in acid media.

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