Cobalt nanoparticles encapsulated in N-doped graphene nanoshells as an efficient cathode electrocatalyst for a mechanical rechargeable zinc–air battery

RSC Advances ◽  
2016 ◽  
Vol 6 (93) ◽  
pp. 90069-90075 ◽  
Author(s):  
Kai-Yuan Zhou ◽  
Guang-Yi Chen ◽  
Jia-Ang Liu ◽  
Zhi-Peng Zhang ◽  
Peng Sun ◽  
...  
Keyword(s):  
Fuel Cells ◽  
High Performance ◽  
Low Cost ◽  
Cobalt Nanoparticles ◽  
Practical Applications ◽  
Doped Graphene ◽  
Air Battery

Air-cathodes with properties of efficiency, durability and low cost are essential for high performance metal–air batteries and fuel cells for practical applications.

Highly Efficient Bifunctional Electrocatalyst (ORR/OER) Derived from GO Functionalized with Carbonyl, Hydroxyl and Epoxy Groups for Rechargeable Zinc-Air Batteries

2021 ◽  
Author(s):  
Lei Gu ◽  
Xuan-Long Sun ◽  
Jiao Zhao ◽  
Bing-Quan Gong ◽  
Zheng-Lv Bao ◽  
...  
Keyword(s):  
Fuel Cells ◽  
High Activity ◽  
Water Splitting ◽  
High Performance ◽  
Low Cost ◽  
Bifunctional Electrocatalyst ◽  
Highly Efficient ◽  
Air Battery ◽  
Epoxy Groups ◽  
Zinc Air Batteries

Electrocatalysts play an important role in fuel cells, metal-air battery and water-splitting devices. The development of low cost, high activity and high performance bifunctional electrocatalysts for ORR and OER is...

scholarly journals Synthesis of catalysts with fine platinum particles supported by high-surface-area activated carbons and optimization of their catalytic activities for polymer electrolyte fuel cells

RSC Advances ◽  
2021 ◽  
Vol 11 (33) ◽  
pp. 20601-20611
Author(s):  
Md. Mijanur Rahman ◽  
Kenta Inaba ◽  
Garavdorj Batnyagt ◽  
Masato Saikawa ◽  
Yoshiki Kato ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Polymer Electrolyte ◽  
High Performance ◽  
Activated Carbons ◽  
Low Cost ◽  
High Surface ◽  
High Surface Area ◽  
Polymer Electrolyte Fuel Cells ◽  
Supported Platinum ◽  
Platinum Particles

Herein, we demonstrated that carbon-supported platinum (Pt/C) is a low-cost and high-performance electrocatalyst for polymer electrolyte fuel cells (PEFCs).

High-performance anode material based on S and N co-doped graphene/iron carbide nanocomposite for microbial fuel cells

2021 ◽  
Vol 512 ◽  
pp. 230482
Author(s):  
Jie Xia ◽  
Yanxian Geng ◽  
Shuting Huang ◽  
Dongyun Chen ◽  
Najun Li ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Anode Material ◽  
Microbial Fuel Cells ◽  
High Performance ◽  
Iron Carbide ◽  
Doped Graphene ◽  
Co Doped

A waste biomass derived hard carbon as a high-performance anode material for sodium-ion batteries

2016 ◽  
Vol 4 (34) ◽  
pp. 13046-13052 ◽  
Author(s):  
Pin Liu ◽  
Yunming Li ◽  
Yong-Sheng Hu ◽  
Hong Li ◽  
Liquan Chen ◽  
...  
Keyword(s):  
Anode Material ◽  
High Performance ◽  
Coulombic Efficiency ◽  
Low Cost ◽  
Sodium Ion ◽  
Cycle Performance ◽  
Sodium Ion Batteries ◽  
Waste Biomass ◽  
Hard Carbon ◽  
Practical Applications

This study reports a hard carbon material derived from a waste biomass of corn cob and the influence of carbonized temperature on electrochemical performance. This study provides a promising anode material with low cost, high initial coulombic efficiency and excellent cycle performance, making sodium-ion batteries closer to practical applications.

scholarly journals Nanosheets of CuCo2O4 As a High-Performance Electrocatalyst in Urea Oxidation

2019 ◽  
Vol 9 (4) ◽  
pp. 793 ◽  
Author(s):  
Camila Zequine ◽  
Fangzhou Wang ◽  
Xianglin Li ◽  
Deepa Guragain ◽  
S.R. Mishra ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Photoelectron Spectroscopy ◽  
High Performance ◽  
Nickel Foam ◽  
Low Cost ◽  
Agricultural Waste ◽  
Bifunctional Catalyst ◽  
X Ray Diffraction ◽  
X Ray ◽  
Electroactive Material

The urea oxidation reaction (UOR) is a possible solution to solve the world’s energy crisis. Fuel cells have been used in the UOR to generate hydrogen with a lower potential compared to water splitting, decreasing the costs of energy production. Urea is abundantly present in agricultural waste and in industrial and human wastewater. Besides generating hydrogen, this reaction provides a pathway to eliminate urea, which is a hazard in the environment and to people’s health. In this study, nanosheets of CuCo2O4 grown on nickel foam were synthesized as an electrocatalyst for urea oxidation to generate hydrogen as a green fuel. The synthesized electrocatalyst was characterized using X-ray diffraction, scanning electron microscopy, and X-ray photoelectron spectroscopy. The electroactivity of CuCo2O4 towards the oxidation of urea in alkaline solution was evaluated using electrochemical measurements. Nanosheets of CuCo2O4 grown on nickel foam required the potential of 1.36 V in 1 M KOH with 0.33 M urea to deliver a current density of 10 mA/cm2. The CuCo2O4 electrode was electrochemically stable for over 15 h of continuous measurements. The high catalytic activities for the hydrogen evolution reaction make the CuCo2O4 electrode a bifunctional catalyst and a promising electroactive material for hydrogen production. The two-electrode electrolyzer demanded a potential of 1.45 V, which was 260 mV less than that for the urea-free counterpart. Our study suggests that the CuCo2O4 electrode can be a promising material as an efficient UOR catalyst for fuel cells to generate hydrogen at a low cost.

Converting micro-sized kerf-loss silicon waste to high-performance hollow-structured silicon/carbon composite anodes for lithium-ion batteries

2020 ◽  
Vol 4 (9) ◽  
pp. 4780-4788 ◽  
Author(s):  
Qiang Ma ◽  
Jiakang Qu ◽  
Xiang Chen ◽  
Zhuqing Zhao ◽  
Yan Zhao ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Low Cost ◽  
Lithium Ion ◽  
Carbon Composite ◽  
Lithium Storage ◽  
Practical Applications ◽  
Storage Performance ◽  
Silicon Carbon ◽  
Composite Anodes

Low-cost feedstocks and rationally designed structures are the keys to determining the lithium-storage performance and practical applications of Si-based anodes for lithium-ion batteries (LIBs).

scholarly journals Recent Advances in Oxygen Electrocatalysts Based on Perovskite Oxides

Nanomaterials ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 1161 ◽  
Author(s):  
Jun Xu ◽  
Chan Chen ◽  
Zhifei Han ◽  
Yuanyuan Yang ◽  
Junsheng Li ◽  
...  
Keyword(s):  
High Performance ◽  
Low Cost ◽  
High Surface ◽  
High Surface Area ◽  
Precious Metals ◽  
Perovskite Oxides ◽  
Air Battery ◽  
Energy Conversion Devices ◽  
Further Development ◽  
Electrochemical Oxygen

Electrochemical oxygen reduction and oxygen evolution are two key processes that limit the efficiency of important energy conversion devices such as metal–air battery and electrolysis. Perovskite oxides are receiving discernable attention as potential bifunctional oxygen electrocatalysts to replace precious metals because of their low cost, good activity, and versatility. In this review, we provide a brief summary on the fundamentals of perovskite oxygen electrocatalysts and a detailed discussion on emerging high-performance oxygen electrocatalysts based on perovskite, which include perovskite with a controlled composition, perovskite with high surface area, and perovskite composites. Challenges and outlooks in the further development of perovskite oxygen electrocatalysts are also presented.

Graphite Sheets as High-Performance Low-Cost Anodes for Microbial Fuel Cells Using Real Food Wastewater

2017 ◽  
Vol 40 (12) ◽  
pp. 2243-2250 ◽  
Author(s):  
Hend Omar Mohamed ◽  
Mohamed Obaid ◽  
Enas Taha Sayed ◽  
Mohammad Ali Abdelkareem ◽  
Mira Park ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
High Performance ◽  
Low Cost ◽  
Food Wastewater ◽  
Graphite Sheets

A three-dimensional nitrogen-doped graphene aerogel-activated carbon composite catalyst that enables low-cost microfluidic microbial fuel cells with superior performance

2016 ◽  
Vol 4 (41) ◽  
pp. 15913-15919 ◽  
Author(s):  
Yang Yang ◽  
Tianyu Liu ◽  
Qiang Liao ◽  
Dingding Ye ◽  
Xun Zhu ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Microbial Fuel Cells ◽  
Low Cost ◽  
Three Dimensional ◽  
Carbon Composite ◽  
Superior Performance ◽  
Composite Catalyst ◽  
Graphene Aerogel ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

Low-cost electrodes were used in miniature microbial fuel cells to generate a remarkably high volumetric power density.

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