Unpaired 3d Electrons on Atomically Dispersed Cobalt Centres in Coordination Polymers Regulate both Oxygen Reduction Reaction (ORR) Activity and Selectivity for Use in Zinc–Air Batteries

2019 ◽  
Vol 132 (1) ◽  
pp. 292-300 ◽  
Author(s):  
Yuebin Lian ◽  
Wenjuan Yang ◽  
Chufeng Zhang ◽  
Hao Sun ◽  
Zhao Deng ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Coordination Polymers ◽  
Reduction Reaction ◽  
Orr Activity ◽  
Zinc Air Batteries

scholarly journals An Fe(iii)-doped coordination polymer of Mn13-clusters with improved activity for the oxygen reduction reaction

2019 ◽  
Vol 48 (15) ◽  
pp. 4794-4797 ◽  
Author(s):  
Tian Wen ◽  
Wolfgang Schmitt ◽  
Lei Zhang
Keyword(s):  
Composite Materials ◽  
Coordination Polymer ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Coordination Polymers ◽  
Reduction Reaction ◽  
Porous Coordination Polymers ◽  
Orr Activity

Homogeneously distributed Fe(iii) dopants were introduced into porous coordination polymers of Mn13-clusters to form composite materials. The resulting Fe@Mn13-polymer exhibited efficient oxygen reduction reaction (ORR) activity.

Zinc–Air Batteries Catalyzed Using Co3O4 Nanorod-Supported N-Doped Entangled Graphene for Oxygen Reduction Reaction

2021 ◽  
Author(s):  
Narugopal Manna ◽  
Santosh K. Singh ◽  
Geeta Pandurang Kharabe ◽  
Arun Torris ◽  
Sreekumar Kurungot
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Zinc Air Batteries

Toward synergy of carbon and La2O3 in their hybrid as an efficient catalyst for the oxygen reduction reaction

RSC Advances ◽  
2016 ◽  
Vol 6 (81) ◽  
pp. 77786-77795 ◽  
Author(s):  
Nan Wang ◽  
Jingjun Liu ◽  
Weiwei Gu ◽  
Ye Song ◽  
Feng Wang
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Efficient Catalyst ◽  
Covalent Bonds ◽  
Orr Activity

The interficial covalent bonds formed in La2O3/C hybrid are responsible for its enhanced ORR activity.

Diagnosis of the measurement inconsistencies of carbon-based electrocatalysts for the oxygen reduction reaction in alkaline media

RSC Advances ◽  
2015 ◽  
Vol 5 (2) ◽  
pp. 1571-1580 ◽  
Author(s):  
Dongyoon Shin ◽  
Beomgyun Jeong ◽  
Myounghoon Choun ◽  
Joey D. Ocon ◽  
Jaeyoung Lee
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
Testing Methodology ◽  
Orr Activity ◽  
Carbon Based

An optimal catalyst testing methodology that could allow precise benchmarking to obtain standardized ORR activity is put forward.

scholarly journals Synthesis of P- and N-doped carbon catalysts for the oxygen reduction reaction via controlled phosphoric acid treatment of folic acid

2019 ◽  
Author(s):  
Rieko Kobayashi ◽  
Takafumi Ishii ◽  
Yasuo Imashiro ◽  
Jun-ichi Ozaki
Keyword(s):  
Folic Acid ◽  
Phosphoric Acid ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Acid Treatment ◽  
Reduction Reaction ◽  
P Content ◽  
Orr Activity ◽  
Carbon Catalysts ◽  
Pyridinic N

Herein, we synthesized N- and P-doped carbons (PN-doped carbons) by controlled phosphoric acid treatment (CPAT) of folic acid (FA) and probed their ability to catalyze the oxygen reduction reaction at the cathode of a fuel cell. Precursors obtained by heating FA in the presence of phosphoric acid at temperatures of 400–1000 °C were further annealed at 1000 °C to afford PN-doped carbons. The extent of precursor P-doping was maximized at 700 °C, and the use of higher temperatures resulted in activation and increased porosity rather than in increased P content. The P/C atomic ratios of PN-doped carbons were well correlated with those of precursors, which indicated that CPAT was well suited for the preparation of PN-doped carbons. Carbon prepared using a CPAT temperature of 700 °C exhibited the highest oxygen reduction reaction (ORR) activity and was shown to contain –C–PO2 and –C–PO3 moieties as the major P species and pyridinic N as the major N species; moreover, no N–P bonds were detected. The presence of –C–PO2 and –C–PO3 units was concluded to decrease the work function and thus raise the Fermi level above the standard O2/H2O reduction potential, which resulted in enhanced ORR activity. Finally, CPAT was concluded to be applicable to the synthesis of PN-doped carbons from N-containing organic compounds other than FA.

Fe, Cu-Coordinated ZIF-Derived Carbon Framework for Efficient Oxygen Reduction Reaction and Zinc-Air Batteries

2018 ◽  
Vol 28 (39) ◽  
pp. 1802596 ◽  
Author(s):  
Zhihao Wang ◽  
Huihui Jin ◽  
Tian Meng ◽  
Ke Liao ◽  
Wenqian Meng ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Carbon Framework ◽  
Zinc Air Batteries

B-site W ions doped La0.5Sr0.5Co1-xWxO3-δ perovskite nanofibers with defects as bifunctional oxygen catalysts for rechargeable zinc-air batteries

2021 ◽  
Author(s):  
Xin Yu Gao ◽  
Xingwei Sun ◽  
Jia Hui Guo ◽  
Ya Nan Teng ◽  
Lei Liu ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Oxygen Electrode ◽  
Reduction Reaction ◽  
Air Battery ◽  
Zinc Air Batteries

The exploration of bifunctional oxygen electrode towards oxygen evolution reaction (OER) activity and oxygen reduction reaction (ORR) is the bottlenecks for the development of rechargeable zinc-air battery as a clean...

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