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

2020 ◽  
Vol 7 (15) ◽  
pp. 3341-3346
Author(s):  
Kai Huang ◽  
Pengfu Xu ◽  
Xian He ◽  
Ruyue Wang ◽  
Yonggang Wang ◽  
...  
Keyword(s):  
Mesoporous Carbon ◽  
Oxygen Electroreduction ◽  
Alloy Nanoparticles ◽  
Cobalt Alloy ◽  
Nitrogen Doped

Pony-Size Silver-Copper and Silver-Iron Alloy Nanoparticles Confined in N-Free Mesoporous Carbon for Efficient Oxygen Electroreduction

2019 ◽  
Vol 166 (8) ◽  
pp. H272-H282
Author(s):  
Yu Qiao ◽  
Yangyang Ni ◽  
Zhengyan Chen ◽  
Fantao Kong ◽  
Ruijing Li ◽  
...  
Keyword(s):  
Mesoporous Carbon ◽  
Iron Alloy ◽  
Oxygen Electroreduction ◽  
Alloy Nanoparticles ◽  
Silver Copper

Bamboo-like nitrogen-doped porous carbon nanofibers encapsulated nickel–cobalt alloy nanoparticles composite material derived from the electrospun fiber of a bimetal–organic framework as efficient bifunctional oxygen electrocatalysts

Nanoscale ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 5942-5952 ◽  
Author(s):  
Chao Feng ◽  
Yuan Guo ◽  
Yuehong Xie ◽  
Xianglei Cao ◽  
Shiang Li ◽  
...  
Keyword(s):  
Composite Material ◽  
Carbon Nanofibers ◽  
Porous Carbon ◽  
Electrospun Fiber ◽  
Alloy Nanoparticles ◽  
Cobalt Alloy ◽  
Nitrogen Doped ◽  
Nickel Cobalt ◽  
Electrocatalytic Performance ◽  
Organic Framework

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).

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

2012 ◽  
Vol 22 (16) ◽  
pp. 3519-3526 ◽  
Author(s):  
Bhaghavathi P. Vinayan ◽  
Rupali Nagar ◽  
Natarajan Rajalakshmi ◽  
Sundara Ramaprabhu
Keyword(s):  
Alloy Nanoparticles ◽  
Cobalt Alloy ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

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

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.

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

2019 ◽  
Vol 7 (34) ◽  
pp. 19889-19897 ◽  
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.

Nitrogen-Doped Mesoporous Carbon Derived from Polyaniline

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.

Monodispersed palladium–cobalt alloy nanoparticles assembled on poly(N-vinyl-pyrrolidone) (PVP) as a highly effective catalyst for dimethylamine borane (DMAB) dehydrocoupling

RSC Advances ◽  
2016 ◽  
Vol 6 (29) ◽  
pp. 24097-24102 ◽  
Author(s):  
Betül Çelik ◽  
Yunus Yıldız ◽  
Hakan Sert ◽  
Esma Erken ◽  
Yagmur Koşkun ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Catalytic Performance ◽  
Vinyl Pyrrolidone ◽  
Alloy Nanoparticles ◽  
Turnover Frequency ◽  
Cobalt Alloy ◽  
High Turnover ◽  
Effective Catalyst ◽  
Dimethylamine Borane ◽  
Very High

Monodispersed PdCo@PVP NPs showed record catalytic activity, giving the best catalytic performance yet with a very high turnover frequency.

Sign in / Sign up

Export Citation Format

Share Document