A Highly Active Defect Engineering Cl-doped Carbon Catalyst for N2 Reduction Reaction

2021 ◽  
Author(s):  
Minxue Huang ◽  
Shipeng Gong ◽  
Sini Wang ◽  
Kang Yang ◽  
Shi Chen ◽  
...  
Keyword(s):  
Competitive Adsorption ◽  
Reduction Reaction ◽  
Ambient Conditions ◽  
Defect Engineering ◽  
Carbon Catalyst ◽  
Environment Friendly ◽  
Active Defect ◽  
Highly Active ◽  
High Ammonia

The eNRR is a promisingly environment-friendly strategy to obtain ammonia under ambient conditions. For metal-based catalysts, the competitive adsorption of H+ over N2 remains the primary hurdle for high ammonia...

Highly efficient electrochemical ammonia synthesis via nitrogen reduction reactions on a VN nanowire array under ambient conditions

2018 ◽  
Vol 54 (42) ◽  
pp. 5323-5325 ◽  
Author(s):  
Xiaoping Zhang ◽  
Rong-Mei Kong ◽  
Huitong Du ◽  
Lian Xia ◽  
Fengli Qu
Keyword(s):  
High Performance ◽  
Ammonia Synthesis ◽  
Nanowire Array ◽  
Reduction Reaction ◽  
Carbon Cloth ◽  
Ambient Conditions ◽  
Faradaic Efficiency ◽  
Nitrogen Reduction ◽  
Highly Efficient ◽  
High Ammonia

A VN nanowire array on carbon cloth (VN/CC) as a high-performance catalyst for the nitrogen reduction reaction (NRR) affords high ammonia yield (2.48 × 10−10 mol−1 s−1 cm−2) and faradaic efficiency (3.58%) at −0.3 V versus RHE in 0.1 M HCl.

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).

scholarly journals Highly Active Wood-Derived Nitrogen-Doped Carbon Catalyst for the Oxygen Reduction Reaction

ACS Omega ◽  
2020 ◽  
Vol 5 (37) ◽  
pp. 23578-23587
Author(s):  
Kätlin Kaare ◽  
Eric Yu ◽  
Aleksandrs Volperts ◽  
Galina Dobele ◽  
Aivars Zhurinsh ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Carbon Catalyst ◽  
Nitrogen Doped ◽  
Highly Active ◽  
Nitrogen Doped Carbon

Large Scale-up Monocrystalized 3R MoS2 Electrocatalyst for Efficient Nitrogen Reduction Reaction

2021 ◽  
Author(s):  
Bin Fang ◽  
Junjie Yao ◽  
Xiaojun Zhang ◽  
Liang Ma ◽  
Yaqi Ye ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
Large Scale ◽  
Scale Up ◽  
Reduction Reaction ◽  
Ambient Conditions ◽  
Environment Friendly ◽  
Nitrogen Reduction

Electrochemical nitrogen fixation supplies an environment-friendly strategy to produce ammonia (NH3) at ambient conditions. However, exploiting a kind of inexpensive and efficient electrocatalyst for electrocatalytic nitrogen reduction reaction (NRR) under...

Photo-Assisted High Performance Single Atom Electrocatalysis of N2 Reduction Reaction by Mo-embedded Covalent Organic Framework

2021 ◽  
Author(s):  
Juan Wang ◽  
Zhihua Zhang ◽  
Siyun Qi ◽  
Yingcai Fan ◽  
Yanmei Yang ◽  
...  
Keyword(s):  
High Performance ◽  
Low Cost ◽  
Reduction Reaction ◽  
Single Atom ◽  
Ambient Conditions ◽  
Environment Friendly ◽  
Covalent Organic Framework ◽  
High Efficient ◽  
Organic Framework

The development of high efficient, low cost and environment-friendly solutions for the conversion of gas nitrogen to ammonia under ambient conditions has great industrial and academic significance. Single-atom catalysis (SAC)...

Ordered Intermetallic Nanoparticles with High Catalytic Activity Prepared by an Electrochemically Induced Phase Transformation

2019 ◽  
Author(s):  
Du Sun ◽  
yunfei wang ◽  
Kenneth Livi ◽  
chuhong wang ◽  
ruichun luo ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Diffusion Mechanism ◽  
Reduction Reaction ◽  
Atomic Scale ◽  
High Catalytic Activity ◽  
Ambient Conditions ◽  
Magnetic Devices ◽  
Disordered Alloys ◽  
Ordered Intermetallic ◽  
Intermetallic Nanoparticles

<div> <p>The synthesis of alloys with long range atomic scale ordering (ordered intermetallics) is an emerging field of nanochemistry. Ordered intermetallic nanoparticles are useful for a wide variety of applications such as catalysis, superconductors, and magnetic devices. However, the preparation of nanostructured ordered intermetallics is challenging in comparison to disordered alloys, hindering progress in materials development. We report a process for converting colloidally synthesized ordered intermetallic PdBi<sub>2</sub> to ordered intermetallic Pd<sub>3</sub>Bi nanoparticles under ambient conditions by an electrochemically induced phase transition. The low melting point of PdBi<sub>2</sub> corresponds to low vacancy formation energies which enables the facile removal of the Bi from the surface, while simultaneously enabling interdiffusion of the constituent atoms via a vacancy diffusion mechanism under ambient conditions. The resulting phase-converted ordered intermetallic Pd<sub>3</sub>Bi exhibits 11x and 3.5x higher mass activty and high methanol tolerance for the oxygen reduction reaction compared to Pt/C and Pd/C, respectively,which is the highest reported for a Pd-based catalyst, to the best of our knowledge. These results establish a key development in the synthesis of noble metal rich ordered intermetallic phases with high catalytic activity, and sets forth guidelines for the design of ordered intermetallic compounds under ambient conditions.</p> </div>

scholarly journals Defect and Doping Co-Engineered Non-Metal Nanocarbon ORR Electrocatalyst

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Jian Zhang ◽  
Jingjing Zhang ◽  
Feng He ◽  
Yijun Chen ◽  
Jiawei Zhu ◽  
...  
Keyword(s):  
Rational Design ◽  
Low Cost ◽  
Reduction Reaction ◽  
Defect Engineering ◽  
Heteroatom Doping ◽  
Competitive Activity ◽  
Design And Manufacturing ◽  
Earth Abundant ◽  
Induced Defects ◽  
Carbon Based

AbstractExploring low-cost and earth-abundant oxygen reduction reaction (ORR) electrocatalyst is essential for fuel cells and metal–air batteries. Among them, non-metal nanocarbon with multiple advantages of low cost, abundance, high conductivity, good durability, and competitive activity has attracted intense interest in recent years. The enhanced ORR activities of the nanocarbons are normally thought to originate from heteroatom (e.g., N, B, P, or S) doping or various induced defects. However, in practice, carbon-based materials usually contain both dopants and defects. In this regard, in terms of the co-engineering of heteroatom doping and defect inducing, we present an overview of recent advances in developing non-metal carbon-based electrocatalysts for the ORR. The characteristics, ORR performance, and the related mechanism of these functionalized nanocarbons by heteroatom doping, defect inducing, and in particular their synergistic promotion effect are emphatically analyzed and discussed. Finally, the current issues and perspectives in developing carbon-based electrocatalysts from both of heteroatom doping and defect engineering are proposed. This review will be beneficial for the rational design and manufacturing of highly efficient carbon-based materials for electrocatalysis.

Topological defects involving Fe/N co-doped mesoporous carbon nanosheets as novel electrocatalysts for the oxygen reduction reaction and Zn–air batteries

Nanoscale ◽  
2021 ◽  
Author(s):  
Junjie Ding ◽  
Dongchuang Wu ◽  
Senhe Huang ◽  
Chenbao Lu ◽  
Yu Chen ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Topological Defects ◽  
Reduction Reaction ◽  
Defect Engineering ◽  
Carbon Nanosheets ◽  
Renewable Energy Technologies ◽  
Central Focus ◽  
Energy Technologies ◽  
Co Doped

Developing effective electrocatalysts for oxygen reduction reaction is of great significance for clean and renewable energy technologies, such as metal–air batteries and fuel cells. Defect engineering is the central focus...

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