scholarly journals Preparation and Characterization of Multi-doped Porous Carbon Nanofibers from Carbonization in Different Atmospheres and Their Oxygen Electrocatalytic Properties Research

2022 ◽  
Author(s):  
Tao Wang ◽  
Oluwafunmilola Ola ◽  
Qijian Niu ◽  
Yuhao Lu ◽  
Malcom Frimpong Dapaah ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Carbon Nanofibers ◽  
Porous Carbon ◽  
Carbon Nanofiber ◽  
Linear Sweep Voltammetry ◽  
Morphological Properties ◽  
Electrospun Nanofiber ◽  
Research Attention ◽  
Porous Carbon Nanofiber

Recently, electrocatalysts for oxygen reduction reactions (ORRs) as well as oxygen evolution reactions (OERs) hinged on electrospun nanofiber composites have attracted wide research attention. Transition metal elements and heteroatomic doping are important methods used to enhance their catalytic performances. Lately, the construction of electrocatalysts based on metal-organic framework (MOF) electrospun nanofibers has become a research hotspot. In this work, bimetallic NixCoy-ZIF nanocrystals were synthesized in an aqueous solution, followed by NixCoy-ZIF/PAN electrospun nanofiber precursors, which were prepared by a simple electrospinning method. Bimetal (Ni-Co) porous carbon nanofiber catalysts doped with nitrogen, oxygen, and sulfur elements were obtained at high-temperature carbonization treatment in different atmospheres (Ar, Air, and H2S), respectively. The morphological properties, structures, and composition were characterized by SEM, TEM, SAED, XRD, and XPS. Also, the specific surface area of materials and their pore size distribution was characterized by BET. Linear sweep voltammetry curves investigated catalyst performances towards oxygen reduction and evolution reactions. Importantly, Ni1Co2-ZIFs/PAN-Ar yielded the best ORR activity, whereas Ni1Co1-ZIFs/PAN-Air exhibited the best OER performance. This work provides significant guidance for the preparation and characterization of multi-doped porous carbon nanofibers carbonized in different atmospheres.

Boron and nitrogen co-doped porous carbon nanofibers as metal-free electrocatalysts for highly efficient ammonia electrosynthesis

2019 ◽  
Vol 7 (46) ◽  
pp. 26272-26278 ◽  
Author(s):  
Yan Kong ◽  
Yan Li ◽  
Bin Yang ◽  
Zhongjian Li ◽  
Yao Yao ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Carbon Nanofibers ◽  
Porous Carbon ◽  
Carbon Nanofiber ◽  
Reduction Reaction ◽  
Basic Solution ◽  
Metal Free ◽  
Highly Efficient ◽  
Porous Carbon Nanofiber ◽  
Co Doped

A metal-free B, N co-doped porous carbon nanofiber with a synergistic effect was developed for efficient electrocatalytic nitrogen reduction reaction in basic solution.

A graphene/nitrogen-doped carbon nanofiber composite as an anode material for sodium-ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (127) ◽  
pp. 104822-104828 ◽  
Author(s):  
Juan Zhang ◽  
Zhian Zhang ◽  
Xingxing Zhao
Keyword(s):  
Anode Material ◽  
Carbon Nanofibers ◽  
Porous Carbon ◽  
Carbon Nanofiber ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Nanofiber Composite ◽  
Nitrogen Doped ◽  
Porous Carbon Nanofiber ◽  
Nitrogen Doped Carbon

A graphene/N-doped porous carbon nanofiber (RGO/NPC) composite was designed as an anode material for sodium-ion batteries (SIBs). A microstructure of fine and uniform N-doped porous carbon nanofibers decorated on 2D RGO sheets was obtained.

scholarly journals Li–fluorine codoped electrospun carbon nanofibers for enhanced hydrogen storage

RSC Advances ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 4053-4061
Author(s):  
Xiaohong Chen ◽  
Zhiyong Xue ◽  
Kai Niu ◽  
Xundao Liu ◽  
Wei lv ◽  
...  
Keyword(s):  
Hydrogen Storage ◽  
Carbon Nanofibers ◽  
Porous Carbon ◽  
Carbon Nanofiber ◽  
Storage Performance ◽  
Porous Carbon Nanofiber ◽  
Hydrogen Storage Performance

We developed a facile, yet general, approach for preparing Li–fluorine codoped porous carbon nanofiber (Li–F–PCNF) composites, which showed excellent hydrogen storage performance.

scholarly journals Electrospun polyacrylonitrile/β-cyclodextrin based porous carbon nanofiber self-supporting electrode for capacitive deionization

RSC Advances ◽  
2017 ◽  
Vol 7 (87) ◽  
pp. 55224-55231 ◽  
Author(s):  
Hexuan Zhang ◽  
Zhengzheng Xie ◽  
Yanbo Wang ◽  
Xiaohong Shang ◽  
Pengfei Nie ◽  
...  
Keyword(s):  
Carbon Nanofibers ◽  
Porous Carbon ◽  
Carbon Nanofiber ◽  
Carbon Precursor ◽  
Capacitive Deionization ◽  
Porous Carbon Nanofiber ◽  
Supporting Electrode

With β-CD as both pore-forming reagent and carbon precursor, conductive porous carbon nanofibers are fabricated with excellent capacitive deionization performance.

Hierarchical core–shell heterostructure of porous carbon nanofiber@ZnCo2O4 nanoneedle arrays: advanced binder-free electrodes for all-solid-state supercapacitors

2015 ◽  
Vol 3 (47) ◽  
pp. 24082-24094 ◽  
Author(s):  
Hao Niu ◽  
Xue Yang ◽  
He Jiang ◽  
Dan Zhou ◽  
Xin Li ◽  
...  
Keyword(s):  
Solid State ◽  
Thermal Treatment ◽  
Hydrothermal Method ◽  
Carbon Nanofibers ◽  
Porous Carbon ◽  
Carbon Nanofiber ◽  
Core Shell ◽  
Facile Hydrothermal Method ◽  
Porous Carbon Nanofiber ◽  
Binder Free

Hierarchical ZnCo2O4 nanoneedle arrays are vertically grown on porous carbon nanofibers (PCFs) to form a core–shell heterostructure through a facile hydrothermal method followed by thermal treatment.

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