scholarly journals Fabrication of Non-precious Vanadium Tungsten Nanocomposite for Enhanced Electrocatalytic Oxygen Reduction Reaction

2021 ◽  
Vol 33 (4) ◽  
pp. 919-924
Author(s):  
L. Stanlykeninxavier ◽  
P. Elangovan ◽  
M.S.S. Saravanakumaar
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
High Performance ◽  
High Efficiency ◽  
Low Cost ◽  
High Capacity ◽  
Reduction Reaction ◽  
Highly Active ◽  
Electrocatalytic Oxygen Reduction

For the commercialization of alkaline fuel cells and metal air batteries, the advances in non-precious, cheap, stable electrocatalysts for the oxygen reduction reaction (ORR) and highly active remain a major problem. To overcome this problem, a facile approach was established to fabricate non-precious metal electrocatalysts, such as nanoparticles, pristine V2O5 and their WO3 hybrids. This is the first study reporting the utilization of monoclinic-WO3-nanocrystal-coupled V2O5 that serves as ORR catalysts. Compared with 50 wt.% WO3 with 50 wt.% V2O5 (VW-2) spheres and pristine V2O5, the hybrid catalyst of 25 wt.% WO3 and 75 wt.% V2O5 (VW-1) spheres exhibits outstanding catalytic activity towards ORR. In addition, the hybrid of 25 wt.% WO3 and 75 wt.% V2O5 (VW-1) exhibits a higher long-term durability and catalytic activity than high-quality commercial Pt/C catalysts, which renders the composites of WO3/V2O5 composites hybrid a high-capacity candidate for non-precious, high-performance, metal-based electrocatalysts having high efficiency and low cost for electrochemical energy conversion. The enhanced activity of WO3/V2O5 composites is mainly obtained from the improved structural openness in the V2O5 tunnel structure when coupled with WO3.

Tunable mesoporous manganese oxide for high performance oxygen reduction and evolution reactions

2016 ◽  
Vol 4 (2) ◽  
pp. 620-631 ◽  
Author(s):  
Islam M. Mosa ◽  
Sourav Biswas ◽  
Abdelhamid M. El-Sawy ◽  
Venkatesh Botu ◽  
Curtis Guild ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Manganese Oxide ◽  
Oxygen Reduction ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
Reduction Reaction ◽  
Noble Metal Catalysts ◽  
Highly Active ◽  
State Of Art

Understanding the origin of manganese oxide activity for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is a key step towards rationally designing of highly active catalysts capable of competing with the widely used, state-of-art noble metal catalysts.

Ferrocene-based porous organic polymer derived high-performance electrocatalysts for oxygen reduction

2017 ◽  
Vol 5 (42) ◽  
pp. 22163-22169 ◽  
Author(s):  
Baolong Zhou ◽  
Liangzhen Liu ◽  
Pingwei Cai ◽  
Guang Zeng ◽  
Xiaoqiang Li ◽  
...  
Keyword(s):  
Schiff Base ◽  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Porous Carbon ◽  
High Performance ◽  
Reduction Reaction ◽  
Organic Polymer ◽  
Porous Organic Polymers ◽  
Porous Organic Polymer

Two nitrogen-rich porous organic polymers (POPs) were prepared via Schiff base chemistry. Carbonization of these POPs results in porous carbon nanohybrids which exhibit excellent catalytic activity toward the oxygen reduction reaction (ORR).

Methanol tolerant, high performance, noble metal free electrocatalyst developed from polyaniline and ferric chloride for the oxygen reduction reaction

RSC Advances ◽  
2015 ◽  
Vol 5 (112) ◽  
pp. 92648-92655 ◽  
Author(s):  
Sankararao Mutyala ◽  
Jayaraman Mathiyarasu ◽  
Ashok Mulchandani
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Noble Metal ◽  
Ferric Chloride ◽  
High Performance ◽  
Low Cost ◽  
Inert Atmosphere ◽  
Reduction Reaction ◽  
Metal Free ◽  
Methanol Tolerant

Here, we report a low-cost, noble metal free Fe–N–C catalyst prepared using carbonized polyaniline (PANI) and ferric chloride as precursors in an inert atmosphere for oxygen reduction reaction.

The direct growth of highly dispersed CoO nanoparticles on mesoporous carbon as a high-performance electrocatalyst for the oxygen reduction reaction

RSC Advances ◽  
2016 ◽  
Vol 6 (75) ◽  
pp. 70763-70769 ◽  
Author(s):  
Pengxi Li ◽  
Ruguang Ma ◽  
Yao Zhou ◽  
Yongfang Chen ◽  
Qian Liu ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Mesoporous Carbon ◽  
High Performance ◽  
Reduction Reaction ◽  
Electrocatalytic Oxygen Reduction ◽  
Excellent Activity ◽  
Highly Dispersed ◽  
Direct Growth ◽  
Coo Nanoparticles

Highly dispersed CoO nanoparticles on mesoporous carbon show the excellent activity and stability toward the electrocatalytic oxygen reduction reaction with a four-electron reaction path, compared to commercial Pt/C.

Synergetic effects of edge formation and sulfur doping on the catalytic activity of a graphene-based catalyst for the oxygen reduction reaction

2016 ◽  
Vol 4 (37) ◽  
pp. 14400-14407 ◽  
Author(s):  
SeKwon Oh ◽  
JongHun Kim ◽  
MinJoong Kim ◽  
DoHwan Nam ◽  
JeongYoung Park ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Ball Milling ◽  
Reduction Reaction ◽  
Sulfur Doping ◽  
Synergetic Effects ◽  
Highly Active ◽  
Pyrolysis Method

An edge activated S doped Fe-N-graphene (EA-SFeNG) was synthesized via a facile and effective ball milling and pyrolysis method for a highly active ORR catalyst.

Recent advances in the design of a high performance metal–nitrogen–carbon catalyst for the oxygen reduction reaction

2021 ◽  
Author(s):  
Cheng-Wei Ye ◽  
Lan Xu
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
High Performance ◽  
Cost Effective ◽  
Reduction Reaction ◽  
Practical Significance ◽  
Carbon Catalyst ◽  
Highly Active ◽  
Recent Advances

Developing highly active, stable, and cost-effective cathode oxygen reduction reaction (ORR) catalysts is of great practical significance to promote the widespread applicability of fuel cells (FCs).

A cobalt–nitrogen complex on N-doped three-dimensional graphene framework as a highly efficient electrocatalyst for oxygen reduction reaction

Nanoscale ◽  
2014 ◽  
Vol 6 (24) ◽  
pp. 15066-15072 ◽  
Author(s):  
Yuanyuan Jiang ◽  
Yizhong Lu ◽  
Xiaodan Wang ◽  
Yu Bao ◽  
Wei Chen ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Precious Metal ◽  
High Performance ◽  
Raw Materials ◽  
Low Cost ◽  
Three Dimensional ◽  
Reduction Reaction ◽  
Highly Efficient ◽  
Doped Graphene

Effective preparation of a high-performance non-precious metal oxygen reduction electrocatalyst (a Co–N complex on 3D N-doped graphene) by a facile method from low-cost raw materials.

CMK3/graphene-N-Co – a low-cost and high-performance catalytic system

2015 ◽  
Vol 3 (6) ◽  
pp. 2978-2984 ◽  
Author(s):  
Xiang-Jun Huang ◽  
Yi-Guo Tang ◽  
Long-Fei Yang ◽  
Ping Chen ◽  
Qing-Sheng Wu ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Catalytic System ◽  
High Performance ◽  
Low Cost ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
Methanol Poisoning ◽  
System P

The CMK3/G-N-Co catalytic system shows excellent catalytic ability in alkaline media for the oxygen reduction reaction and superior stability and tolerance to methanol poisoning effects compared to the Pt/C.

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