Molecule-level graphdiyne coordinated transition metals as a new class of bifunctional electrocatalysts for oxygen reduction and oxygen evolution reactions

2019 ◽  
Vol 21 (35) ◽  
pp. 19651-19659 ◽  
Author(s):  
Zhen Feng ◽  
Renyi Li ◽  
Yaqiang Ma ◽  
Yi Li ◽  
Dong Wei ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Transition Metals ◽  
Oxygen Reduction ◽  
Oxygen Evolution ◽  
Single Atom ◽  
High Catalytic Activity ◽  
New Class ◽  
Bifunctional Electrocatalysts

Graphdiyne (GDY) could provide a unique platform for synthesizing uniform single-atom catalysts (SACs) with high catalytic activity toward oxygen reduction (ORR) and oxygen evolution (OER) reactions.

MOF-derived Fe,Co@N–C bifunctional oxygen electrocatalysts for Zn–air batteries

2020 ◽  
Vol 8 (18) ◽  
pp. 9355-9363 ◽  
Author(s):  
Xinde Duan ◽  
Shuangshuang Ren ◽  
Na Pan ◽  
Mingdao Zhang ◽  
Hegen Zheng
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction ◽  
Oxygen Evolution ◽  
High Catalytic Activity ◽  
Reduction Reactions ◽  
Oxygen Reduction Reactions ◽  
Bifunctional Electrocatalysts

MOF-derived Fe,Co@N-C bifunctional electrocatalysts for oxygen reduction reactions and oxygen evolution reactions have been prepared via a scalable method, exhibiting ultra-high catalytic activity and promising performance in Zn–air batteries.

Nitrogen-doped carbon sheets derived from chitin as non-metal bifunctional electrocatalysts for oxygen reduction and evolution

RSC Advances ◽  
2015 ◽  
Vol 5 (69) ◽  
pp. 56121-56129 ◽  
Author(s):  
Haoran Yuan ◽  
Lifang Deng ◽  
Xixi Cai ◽  
Shungui Zhou ◽  
Yong Chen ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Activated Carbon ◽  
Oxygen Reduction ◽  
High Catalytic Activity ◽  
Nitrogen Doped ◽  
Bifunctional Electrocatalysts ◽  
Nitrogen Doped Carbon

Nitrogen-doped activated carbon sheets were derived from chitin, which exhibited remarkable activity for ORR and high catalytic activity towards OER.

Single-atom transition metals supported on black phosphorene for electrochemical nitrogen reduction

Nanoscale ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 4903-4908 ◽  
Author(s):  
Kang Liu ◽  
Junwei Fu ◽  
Li Zhu ◽  
Xiaodong Zhang ◽  
Hongmei Li ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Transition Metals ◽  
Reduction Reaction ◽  
Single Atom ◽  
High Catalytic Activity ◽  
Nitrogen Reduction ◽  
Mild Conditions ◽  
Black Phosphorene

Electrochemical nitrogen reduction reaction (NRR) is a promising route to produce ammonia under mild conditions. Single-atom W supported on BP was screened as a promising electrocatalyst with high catalytic activity, stability, and selectively for NRR.

High Efficiency Nitrogen Doping and Single Atom Cobalt Anchoring via Supermolecules for Oxygen Reduction Electrocatalysis

2021 ◽  
Author(s):  
Libo Deng ◽  
Xiujuan Li ◽  
Yuanyuan Chen ◽  
Weijie Liao ◽  
Lei Qiu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction ◽  
Nitrogen Doping ◽  
High Efficiency ◽  
Carbon Support ◽  
Utilization Efficiency ◽  
Single Atom ◽  
High Catalytic Activity

Single atom catalysts (SACs) stabilized by nitrogen in a carbon support and having maximized atom utilization efficiency and an unsaturated environment exhibit high catalytic activity and selectivity. Incorporating nitrogen into...

scholarly journals Electrochemical impacts of sheet-like hafnium phosphide and hafnium disulfide catalysts bonded with reduced graphene oxide sheets for bifunctional oxygen reactions in alkaline electrolytes

RSC Advances ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 2599-2607 ◽  
Author(s):  
Mayilvel Dinesh Meganathan ◽  
Taizhong Huang ◽  
Hengyi Fang ◽  
Jianfeng Mao ◽  
Guoxin Sun
Keyword(s):  
Graphene Oxide ◽  
Catalytic Activity ◽  
Oxygen Reduction ◽  
Reduced Graphene Oxide ◽  
Oxygen Evolution ◽  
High Catalytic Activity ◽  
Oxygen Reduction Reactions ◽  
Reduced Graphene ◽  
Alkaline Electrolytes ◽  
Graphene Oxide Sheets

Sheet-like structured hafnium phosphide (HfP) and hafnium disulphide (HfS2) catalysts show high catalytic activity for both oxygen evolution and oxygen reduction reactions, which are determined by the compositional anion ions.

scholarly journals Nickel nanoparticles supported on a covalent triazine framework as electrocatalyst for oxygen evolution reaction and oxygen reduction reactions

2020 ◽  
Vol 11 ◽  
pp. 770-781
Author(s):  
Secil Öztürk ◽  
Yu-Xuan Xiao ◽  
Dennis Dietrich ◽  
Beatriz Giesen ◽  
Juri Barthel ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Nickel Nanoparticles ◽  
Reduction Reaction ◽  
High Catalytic Activity ◽  
Potential Candidate ◽  
Half Wave ◽  
Covalent Triazine Framework

Covalent triazine frameworks (CTFs) are little investigated, albeit they are promising candidates for electrocatalysis, especially for the oxygen evolution reaction (OER). In this work, nickel nanoparticles (from Ni(COD)2) were supported on CTF-1 materials, which were synthesized from 1,4-dicyanobenzene at 400 °C and 600 °C by the ionothermal method. CTF-1-600 and Ni/CTF-1-600 show high catalytic activity towards OER and a clear activity for the electrochemical oxygen reduction reaction (ORR). Ni/CTF-1-600 requires 374 mV overpotential in OER to reach 10 mA/cm2, which outperforms the benchmark RuO2 catalyst, which requires 403 mV under the same conditions. Ni/CTF-1-600 displays an OER catalytic activity comparable with many nickel-based electrocatalysts and is a potential candidate for OER. The same Ni/CTF-1-600 material shows a half-wave potential of 0.775 V for ORR, which is slightly lower than that of commercial Pt/C (0.890 V). Additionally, after accelerated durability tests of 2000 cycles, the material showed only a slight decrease in activity towards both OER and ORR, demonstrating its superior stability.

Single-atom-sized Ni–N4 sites anchored in three-dimensional hierarchical carbon nanostructures for the oxygen reduction reaction

2020 ◽  
Vol 8 (30) ◽  
pp. 15012-15022
Author(s):  
Zhewei Cai ◽  
Pan Du ◽  
Wenhui Liang ◽  
Hui Zhang ◽  
Ping Wu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Carbon Nanostructures ◽  
Three Dimensional ◽  
Reduction Reaction ◽  
Single Atom ◽  
High Catalytic Activity ◽  
Hierarchical Carbon

Single-atom-sized Ni–N4 sites embedded in three-dimensional and hierarchically structured carbon exhibit a high catalytic activity for the ORR.

H4,4,4-graphyne with double Dirac points as high-efficiency bifunctional electrocatalysts for water splitting

2021 ◽  
Author(s):  
Haona Zhang ◽  
Wei Wei ◽  
Shuhua Wang ◽  
Hao Wang ◽  
Baibiao Huang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Water Splitting ◽  
High Efficiency ◽  
Low Cost ◽  
Single Atom ◽  
High Catalytic Activity ◽  
Bifunctional Electrocatalysts

In the light of the ultrahigh atom utilization, high catalytic activity and low cost, single-atom catalysts (SACs) have been garnering extensive attention in the field of electrochemistry. In recent studies,...

Rational prediction of multifunctional bilayer single atom catalysts for the hydrogen evolution, oxygen evolution and oxygen reduction reactions

Nanoscale ◽  
2020 ◽  
Vol 12 (39) ◽  
pp. 20413-20424
Author(s):  
Riming Hu ◽  
Yongcheng Li ◽  
Fuhe Wang ◽  
Jiaxiang Shang
Keyword(s):  
Oxygen Reduction ◽  
Hydrogen Evolution ◽  
Oxygen Evolution ◽  
Single Atom ◽  
Reduction Reactions ◽  
Oxygen Reduction Reactions

Bilayer single atom catalysts can serve as promising multifunctional electrocatalysts for the HER, ORR, and OER.

Catalytic activity of palladium-doped silver dilute nanoalloys for formate oxidation from a theoretical perspective

2019 ◽  
Vol 21 (40) ◽  
pp. 22598-22610 ◽  
Author(s):  
Nan Zhang ◽  
Fuyi Chen ◽  
Longfei Guo
Keyword(s):  
Catalytic Activity ◽  
Oxidation Reaction ◽  
Theoretical Perspective ◽  
Single Atom ◽  
High Catalytic Activity ◽  
Formate Oxidation ◽  
First Time ◽  
Single Atom Alloys

We demonstrate for the first time that the Pd1Ag single-atom alloys exhibit a high catalytic activity for formate oxidation reaction.

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