Annealing‐Free Platinum−Cobalt Alloy Nanoparticles on Nitrogen‐Doped Mesoporous Carbon with Boosted Oxygen Electroreduction Performance

Bamboo-like nanofibers NiCo-0.8@N-CNFs-800 demonstrated an excellent bifunctional electrocatalytic performance, with a low reversible overpotential of 0.79 V between the ORR (E1/2) and OER (Ej = 10 mA cm−2).

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Novel Platinum-Cobalt Alloy Nanoparticles Dispersed on Nitrogen-Doped Graphene as a Cathode Electrocatalyst for PEMFC Applications

Advanced Functional Materials ◽

10.1002/adfm.201102544 ◽

2012 ◽

Vol 22 (16) ◽

pp. 3519-3526 ◽

Cited By ~ 184

Author(s):

Bhaghavathi P. Vinayan ◽

Rupali Nagar ◽

Natarajan Rajalakshmi ◽

Sundara Ramaprabhu

Keyword(s):

Alloy Nanoparticles ◽

Cobalt Alloy ◽

Nitrogen Doped ◽

Nitrogen Doped Graphene ◽

Doped Graphene

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High Capacity and Fast Kinetics of Potassium-Ion Batteries Boosted by Nitrogen-Doped Mesoporous Carbon Spheres

Nano-Micro Letters ◽

10.1007/s40820-021-00706-3 ◽

2021 ◽

Vol 13 (1) ◽

Author(s):

Jiefeng Zheng ◽

Yuanji Wu ◽

Yong Tong ◽

Xi Liu ◽

Yingjuan Sun ◽

...

Keyword(s):

Mesoporous Carbon ◽

Active Sites ◽

Carbon Materials ◽

Potassium Ion ◽

High Rate ◽

Electrochemical Performances ◽

Carbon Spheres ◽

Fast Kinetics ◽

Nitrogen Doped ◽

Economic Price

AbstractIn view of rich potassium resources and their working potential, potassium-ion batteries (PIBs) are deemed as next generation rechargeable batteries. Owing to carbon materials with the preponderance of durability and economic price, they are widely employed in PIBs anode materials. Currently, porosity design and heteroatom doping as efficacious improvement strategies have been applied to the structural design of carbon materials to improve their electrochemical performances. Herein, nitrogen-doped mesoporous carbon spheres (MCS) are synthesized by a facile hard template method. The MCS demonstrate larger interlayer spacing in a short range, high specific surface area, abundant mesoporous structures and active sites, enhancing K-ion migration and diffusion. Furthermore, we screen out the pyrolysis temperature of 900 °C and the pore diameter of 7 nm as optimized conditions for MCS to improve performances. In detail, the optimized MCS-7-900 electrode achieves high rate capacity (107.9 mAh g−1 at 5000 mA g−1) and stably brings about 3600 cycles at 1000 mA g−1. According to electrochemical kinetic analysis, the capacitive-controlled effects play dominant roles in total storage mechanism. Additionally, the full-cell equipped MCS-7-900 as anode is successfully constructed to evaluate the practicality of MCS.

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Air-engaged fabrication of nitrogen-doped carbon skeleton as an excellent platform for ultrafine well-dispersed RuNi alloy nanoparticles toward efficient hydrolysis of ammonia borane

Fuel ◽

10.1016/j.fuel.2021.120750 ◽

2021 ◽

Vol 297 ◽

pp. 120750

Author(s):

Yating He ◽

Yumei Peng ◽

Yi Wang ◽

Yan Long ◽

Guangyin Fan

Keyword(s):

Ammonia Borane ◽

Carbon Skeleton ◽

Alloy Nanoparticles ◽

Nitrogen Doped ◽

Nitrogen Doped Carbon ◽

Hydrolysis Of

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A template-directed bifunctional NiSx/nitrogen-doped mesoporous carbon electrocatalyst for rechargeable Zn–air batteries

Journal of Materials Chemistry A ◽

10.1039/c9ta06446j ◽

2019 ◽

Vol 7 (34) ◽

pp. 19889-19897 ◽

Cited By ~ 12

Author(s):

Kai Wan ◽

Jiangshui Luo ◽

Xuan Zhang ◽

Chen Zhou ◽

Jin Won Seo ◽

...

Keyword(s):

Mesoporous Carbon ◽

Nitrogen Doped ◽

Ordered Mesoporous

A highly ordered mesoporous NiSx/nitrogen-doped mesoporous carbon (NiSx/NMC) nanohybrid as a bifunctional oxygen electrocatalyst for rechargeable Zn–air batteries.

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Nitrogen-Doped Mesoporous Carbon Derived from Polyaniline

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.926-930.379 ◽

2014 ◽

Vol 926-930 ◽

pp. 379-382

Author(s):

De Yi Zhang ◽

Li Wen Zheng ◽

Long Yan Lei

Keyword(s):

Mesoporous Carbon ◽

Electronic Devices ◽

Ordered Mesoporous Carbon ◽

Additional Contribution ◽

Electrochemical Capacitance ◽

Supercapacitive Performance ◽

Nitrogen Doped ◽

Ordered Mesoporous ◽

Capacitance Performance ◽

A Current

In this paper, we demonstrate the successful fabrication of nitrogen doped ordered mesoporous carbon (PNOMC) materials using polyaniline as precursor. The synthesized PNOMC material exhibits enhanced supercapacitive performance due to the additional contribution from pseudo-capacitance originating from incorporation of nitrogen into the framework of carbon materials. Although the specific surface area of the material is not high (386.2 m2/g), the specific capacitance is as high as the 271 F/g at a current density of 1A/g. The fabrication of nitrogen-doped ordered mesoporous carbon with enhanced electrochemical capacitance performance provides a viable route to promote its applications in electronic devices.

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