Three-dimensional mesoporous graphene-like carbons derived from a biomolecule exhibiting high-performance oxygen reduction activity

2019 ◽  
Vol 3 (10) ◽  
pp. 2809-2818 ◽  
Author(s):  
Baobing Huang ◽  
Yuchuan Liu ◽  
Qiaohua Wei ◽  
Zailai Xie
Keyword(s):  
Oxygen Reduction ◽  
High Performance ◽  
Three Dimensional ◽  
Mesoporous Structure ◽  
Nitrogen Species ◽  
Active Nitrogen ◽  
Reduction Activity ◽  
Defect Sites ◽  
Orr Activity ◽  
Cost Efficient

We develop a simple, cost-efficient and sustainable strategy for construction of a novel graphene-like 3D nanocarbon with developed mesoporous structure, abundant defect sites and active nitrogen species for high-performance ORR activity.

Boosting the oxygen reduction activity of a three-dimensional network Co–N–C electrocatalyst via space-confined control of nitrogen-doping efficiency and the molecular-level coordination effect

2018 ◽  
Vol 6 (27) ◽  
pp. 13050-13061 ◽  
Author(s):  
Chaozhong Guo ◽  
Yanrong Li ◽  
Wenli Liao ◽  
Yao Liu ◽  
Zhongbin Li ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Nitrogen Doping ◽  
Molecular Level ◽  
Three Dimensional ◽  
Reduction Activity ◽  
Dimensional Network ◽  
Coordination Effect ◽  
Orr Activity ◽  
Self Assembled

Self-assembled 3D-NaCl aggregates are used to boost the ORR activity of Co–N–C catalysts.

scholarly journals Correction: Boosting the oxygen reduction activity of a three-dimensional network Co–N–C electrocatalyst via space-confined control of nitrogen-doping efficiency and the molecular-level coordination effect

2018 ◽  
Vol 6 (46) ◽  
pp. 23906-23906
Author(s):  
Chaozhong Guo ◽  
Yanrong Li ◽  
Wenli Liao ◽  
Yao Liu ◽  
Zhongbin Li ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Nitrogen Doping ◽  
Molecular Level ◽  
Three Dimensional ◽  
Reduction Activity ◽  
Dimensional Network ◽  
Coordination Effect

Correction for ‘Boosting the oxygen reduction activity of a three-dimensional network Co–N–C electrocatalyst via space-confined control of nitrogen-doping efficiency and the molecular-level coordination effect’ by Chaozhong Guo et al., J. Mater. Chem. A, 2018, 6, 13050–13061.

Sub-nanometer Pt cluster decoration enhances the oxygen reduction reaction performances of NiOx supported Pd nano-islands

2020 ◽  
Vol 4 (2) ◽  
pp. 809-823 ◽  
Author(s):  
Dinesh Bhalothia ◽  
Sheng Dai ◽  
Sheng-Po Wang ◽  
Che Yan ◽  
Tzu-Hsi Huang ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Galvanic Replacement ◽  
Hydration Kinetics ◽  
Defect Sites ◽  
Pt Cluster ◽  
Orr Activity ◽  
Supported Pd

With suitable Pt4+ loading for galvanic replacement, Pt clusters will fill in the defect sites on Ni@Pd–Pt (step 1 and step 2). In this event, the overlap between O2 splitting and hydration kinetics optimize the ORR activity of a Pt cluster decorated Ni@Pd NC.

Effect of Different Iron Sources on In-Situ Growth of Zeolitic Imidazolate Frameworks-8: For Efficient Oxygen Reduction Electrocatalysts

2021 ◽  
Vol 21 (10) ◽  
pp. 5319-5328
Author(s):  
Sha-Sha Luo ◽  
Yu-Meng Ma ◽  
Peng-Wei Li ◽  
Ming-Hua Tian ◽  
Qiao-Xia Li
Keyword(s):  
Catalytic Activity ◽  
High Temperature ◽  
Oxygen Reduction ◽  
High Performance ◽  
Low Cost ◽  
Three Dimensional ◽  
Precious Metals ◽  
High Catalytic Activity ◽  
Zeolitic Imidazolate Frameworks ◽  
Wide Range

Transition metal and nitrogen co-doped carbon-based catalysts (TM-N-C) have become the most promising catalysts for Pt/C due to their wide range of sources, low cost, high catalytic activity, excellent stability and strong resistance to poisoning, especially Fe–N–C metal-organic frameworks (MOFs), which are some of the most promising precursors for the preparation of Fe–N–C catalysts due to their inherent properties, such as their highly ordered three-dimensional framework structure, controlled porosity, and tuneable chemistry. Based on these, in this paper, different iron sources were added to synthesis a sort of zeolitic imidazole frameworks (ZIF-8). Then the imidazole salt in ZIF-8 was rearranged into high N-doped carbon by high-temperature pyrolysis to prepare the Fe–N–C catalyst. We studied the physical characteristics of the catalysts by different iron sources and their effects on the catalytic properties of the oxygen reduction reaction (ORR). From the point of morphology, various iron sources have a positive influence on maintaining the morphology of ZIF-8 polyhedron. Fe–N/C–Fe(NO3)3 has the same anion as zinc nitrate, and can maintain a polyhedral morphology after high-temperature calcination. It had the highest ORR catalytic activity compared to the other four catalyst materials, which proved that there is a certain relationship between morphology and performance. This paper will provide a useful reference and new models for the development of high-performance ORR catalysts without precious metals.

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.

Rational design of three-dimensional nitrogen-doped carbon nanoleaf networks for high-performance oxygen reduction

2015 ◽  
Vol 3 (10) ◽  
pp. 5617-5627 ◽  
Author(s):  
Liang Chen ◽  
Chenyu Xu ◽  
Ran Du ◽  
Yueyuan Mao ◽  
Cheng Xue ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
High Performance ◽  
Rational Design ◽  
Three Dimensional ◽  
Catalytic Performance ◽  
Reduction Reaction ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon ◽  
Excellent Catalytic Performance

“Carbon nanoleaf” aerogels were developed, constructed with nitrogen-doped CNTs/GNRs, which show excellent catalytic performance in oxygen reduction reaction.

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