Studies on noble metal-free carbon-based cathodes for magnesium–hydrogen peroxide fuel cells

Ionics ◽  
2015 ◽  
Vol 21 (9) ◽  
pp. 2603-2607 ◽  
Author(s):  
K. Naga Mahesh ◽  
R. Balaji ◽  
K. S. Dhathathreyan
Keyword(s):  
Hydrogen Peroxide ◽  
Fuel Cells ◽  
Noble Metal ◽  
Free Carbon ◽  
Metal Free ◽  
Carbon Based

Pomelo peel-derived, N-doped biochar microspheres as an efficient and durable metal-free ORR catalyst in microbial fuel cells

2020 ◽  
Vol 4 (4) ◽  
pp. 1642-1653 ◽  
Author(s):  
Yuyuan Zhang ◽  
Lifang Deng ◽  
Huawen Hu ◽  
Yu Qiao ◽  
Haoran Yuan ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Noble Metal ◽  
Electrocatalytic Activity ◽  
Microbial Fuel Cells ◽  
Free Carbon ◽  
Metal Free ◽  
Pomelo Peel ◽  
Carbon Based

Naturally abundant pomelo peels were explored for the preparation of the metal-free carbon-based microspheres with high electrocatalytic activity and long-term durability toward ORR, holding potential for replacing noble metal-based catalysts.

Hydrogen Peroxide Generation with 100% Faradaic Efficiency on Metal-Free Carbon Black

ACS Catalysis ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 2454-2459
Author(s):  
Zhe Wang ◽  
Qin-Kun Li ◽  
Chenhao Zhang ◽  
Zhihua Cheng ◽  
Weiyin Chen ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Carbon Black ◽  
Free Carbon ◽  
Faradaic Efficiency ◽  
Metal Free ◽  
Hydrogen Peroxide Generation

scholarly journals N-doped carbon nanomaterials are durable catalysts for oxygen reduction reaction in acidic fuel cells

2015 ◽  
Vol 1 (1) ◽  
pp. e1400129 ◽  
Author(s):  
Jianglan Shui ◽  
Min Wang ◽  
Feng Du ◽  
Liming Dai
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Carbon Nanomaterials ◽  
Low Cost ◽  
Clean Energy ◽  
Pem Fuel Cells ◽  
Reduction Reaction ◽  
Metal Free ◽  
Carbon Based

The availability of low-cost, efficient, and durable catalysts for oxygen reduction reaction (ORR) is a prerequisite for commercialization of the fuel cell technology. Along with intensive research efforts of more than half a century in developing nonprecious metal catalysts (NPMCs) to replace the expensive and scarce platinum-based catalysts, a new class of carbon-based, low-cost, metal-free ORR catalysts was demonstrated to show superior ORR performance to commercial platinum catalysts, particularly in alkaline electrolytes. However, their large-scale practical application in more popular acidic polymer electrolyte membrane (PEM) fuel cells remained elusive because they are often found to be less effective in acidic electrolytes, and no attempt has been made for a single PEM cell test. We demonstrated that rationally designed, metal-free, nitrogen-doped carbon nanotubes and their graphene composites exhibited significantly better long-term operational stabilities and comparable gravimetric power densities with respect to the best NPMC in acidic PEM cells. This work represents a major breakthrough in removing the bottlenecks to translate low-cost, metal-free, carbon-based ORR catalysts to commercial reality, and opens avenues for clean energy generation from affordable and durable fuel cells.

scholarly journals Electrochemical estimation of active site density on a metal-free carbon-based catalyst

RSC Advances ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 466-475 ◽  
Author(s):  
Arup Chakraborty ◽  
Bapi Bera ◽  
Divya Priyadarshani ◽  
Pradipkumar Leuaa ◽  
Debittree Choudhury ◽  
...  
Keyword(s):  
Active Site ◽  
Free Carbon ◽  
Adsorption Method ◽  
Nitrogen Doped ◽  
Metal Free ◽  
Site Density ◽  
Nitrogen Doped Carbon ◽  
Carbon Based

Estimated ESA of nitrogen-doped carbon and carbon using AQS-adsorption method.

Catalytic Depolymerization of Alkaline Lignin into Phenolic-Based Compounds over Metal-Free Carbon-Based Catalysts

2019 ◽  
Vol 58 (29) ◽  
pp. 13041-13052 ◽  
Author(s):  
Sansanee Totong ◽  
Pornlada Daorattanachai ◽  
Armando T. Quitain ◽  
Tetsuya Kida ◽  
Navadol Laosiripojana
Keyword(s):  
Free Carbon ◽  
Metal Free ◽  
Carbon Based

scholarly journals A review of oxygen reduction mechanisms for metal-free carbon-based electrocatalysts

2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Ruguang Ma ◽  
Gaoxin Lin ◽  
Yao Zhou ◽  
Qian Liu ◽  
Tao Zhang ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Free Carbon ◽  
Metal Free ◽  
Reduction Mechanisms ◽  
Carbon Based
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