Ambient Fast Synthesis and Active Sites Deciphering of Hierarchical Foam‐Like Trimetal–Organic Framework Nanostructures as a Platform for Highly Efficient Oxygen Evolution Electrocatalysis

2019 ◽  
Vol 31 (23) ◽  
pp. 1901139 ◽  
Author(s):  
Qizhu Qian ◽  
Yapeng Li ◽  
Yi Liu ◽  
Lai Yu ◽  
Genqiang Zhang
Keyword(s):  
Oxygen Evolution ◽  
Active Sites ◽  
Highly Efficient ◽  
Fast Synthesis ◽  
Organic Framework

Ultrathin trimetallic metal–organic framework nanosheets for highly efficient oxygen evolution reaction

2019 ◽  
Vol 7 (23) ◽  
pp. 14163-14168 ◽  
Author(s):  
Mengmeng Ding ◽  
Jing Chen ◽  
Meiwen Jiang ◽  
Xiaojun Zhang ◽  
Guangfeng Wang
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Metal Organic Framework ◽  
Organic Ligand ◽  
Ion Transfer ◽  
Highly Efficient ◽  
Metal Organic ◽  
Active Centres ◽  
Organic Framework

Ultrathin trimetallic metal–organic framework nanosheets using 2-methylimidazole as an organic ligand are greatly improving the performance of oxygen evolution reaction due to their more active centres and better ion transfer passage.

Ultrafine bimetallic phosphide nanoparticles embedded in carbon nanosheets: two-dimensional metal–organic framework-derived non-noble electrocatalysts for the highly efficient oxygen evolution reaction

Nanoscale ◽  
2018 ◽  
Vol 10 (42) ◽  
pp. 19774-19780 ◽  
Author(s):  
Min Jiang ◽  
Jun Li ◽  
Xiaofan Cai ◽  
Yu Zhao ◽  
Lijia Pan ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Metal Organic Framework ◽  
Alkaline Media ◽  
Two Dimensional ◽  
Carbon Nanosheets ◽  
Highly Efficient ◽  
Metal Organic ◽  
Organic Framework

The Co1−xFexP/C nanosheets are synthesized using a 2D MOF as the precursor for highly efficient OER catalysis in alkaline media.

scholarly journals Identification of catalytic sites for oxygen reduction and oxygen evolution in N-doped graphene materials: Development of highly efficient metal-free bifunctional electrocatalyst

2016 ◽  
Vol 2 (4) ◽  
pp. e1501122 ◽  
Author(s):  
Hong Bin Yang ◽  
Jianwei Miao ◽  
Sung-Fu Hung ◽  
Jiazang Chen ◽  
Hua Bing Tao ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Oxygen Reduction ◽  
Oxygen Evolution ◽  
Active Sites ◽  
Carbon Nanomaterials ◽  
Specific Capacity ◽  
Open Circuit ◽  
Practical Significance ◽  
Metal Free ◽  
Highly Efficient

Oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are critical to renewable energy conversion and storage technologies. Heteroatom-doped carbon nanomaterials have been reported to be efficient metal-free electrocatalysts for ORR in fuel cells for energy conversion, as well as ORR and OER in metal-air batteries for energy storage. We reported that metal-free three-dimensional (3D) graphene nanoribbon networks (N-GRW) doped with nitrogen exhibited superb bifunctional electrocatalytic activities for both ORR and OER, with an excellent stability in alkaline electrolytes (for example, KOH). For the first time, it was experimentally demonstrated that the electron-donating quaternary N sites were responsible for ORR, whereas the electron-withdrawing pyridinic N moieties in N-GRW served as active sites for OER. The unique 3D nanoarchitecture provided a high density of the ORR and OER active sites and facilitated the electrolyte and electron transports. As a result, the as-prepared N-GRW holds great potential as a low-cost, highly efficient air cathode in rechargeable metal-air batteries. Rechargeable zinc-air batteries with the N-GRW air electrode in a two-electrode configuration exhibited an open-circuit voltage of 1.46 V, a specific capacity of 873 mAh g−1, and a peak power density of 65 mW cm−2, which could be continuously charged and discharged with an excellent cycling stability. Our work should open up new avenues for the development of various carbon-based metal-free bifunctional electrocatalysts of practical significance.

Low-Crystalline Bimetallic Metal–Organic Framework Electrocatalysts with Rich Active Sites for Oxygen Evolution

2018 ◽  
Vol 4 (1) ◽  
pp. 285-292 ◽  
Author(s):  
Jiantao Li ◽  
Wenzhong Huang ◽  
Manman Wang ◽  
Shibo Xi ◽  
Jiashen Meng ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Active Sites ◽  
Metal Organic Framework ◽  
Metal Organic ◽  
Low Crystalline ◽  
Organic Framework

Metal–organic framework derived carbon-confined Ni2P nanocrystals supported on graphene for an efficient oxygen evolution reaction

2017 ◽  
Vol 53 (59) ◽  
pp. 8372-8375 ◽  
Author(s):  
Manman Wang ◽  
Mengting Lin ◽  
Jiantao Li ◽  
Lei Huang ◽  
Zechao Zhuang ◽  
...  
Keyword(s):  
Charge Transport ◽  
Surface Area ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Active Sites ◽  
Metal Organic Framework ◽  
Effective Surface Area ◽  
Effective Surface ◽  
Metal Organic ◽  
Organic Framework

Metal–organic framework derived carbon-confined Ni2P nanocrystals supported on graphene with high effective surface area, more exposed active sites, and enhanced charge transport were successfully designed.

One-dimensional MoO2–Co2Mo3O8@C nanorods: a novel and highly efficient oxygen evolution reaction catalyst derived from metal–organic framework composites

2018 ◽  
Vol 54 (22) ◽  
pp. 2739-2742 ◽  
Author(s):  
Yanqiang Li ◽  
Haibin Xu ◽  
Huiyong Huang ◽  
Chao Wang ◽  
Liguo Gao ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Metal Organic Framework ◽  
One Dimensional ◽  
Highly Efficient ◽  
Metal Organic ◽  
Organic Framework

One dimensional MoO2–Co2Mo3O8@C nanorods were synthesized by using MoO3@ZIF-67 composites as a precursor and the catalyst Co2Mo3O8 shows excellent OER activity.

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