Bacterial cellulose derived nitrogen-doped carbon nanofiber aerogel: An efficient metal-free oxygen reduction electrocatalyst for zinc-air battery

Nano Energy ◽  
2015 ◽  
Vol 11 ◽  
pp. 366-376 ◽  
Author(s):  
Hai-Wei Liang ◽  
Zhen-Yu Wu ◽  
Li-Feng Chen ◽  
Chao Li ◽  
Shu-Hong Yu
Keyword(s):  
Bacterial Cellulose ◽  
Oxygen Reduction ◽  
Carbon Nanofiber ◽  
Free Oxygen ◽  
Nitrogen Doped ◽  
Metal Free ◽  
Air Battery ◽  
Nitrogen Doped Carbon

Co3Fe7 nanoparticles encapsulated in porous nitrogen-doped carbon nanofiber as bifunctional electrocatalysts for rechargeable zinc-air battery

2021 ◽  
Author(s):  
Miaomiao Liu ◽  
Yulong He ◽  
Jintao Zhang
Keyword(s):  
Oxygen Reduction ◽  
Active Sites ◽  
Carbon Nanofiber ◽  
Nitrogen Doped ◽  
Bifunctional Electrocatalysts ◽  
Air Battery ◽  
Nitrogen Doped Carbon ◽  
Carbon Based

Exploration of inexpensitive and high perfomance carbon-based electrocatalyst with abundant active sites for oxygen reduction and evolution reactions is vital for enhancing the performance of zinc air battery. Herein, the...

Facile Conversion of Radish to Nitrogen-Doped Mesoporous Carbon as Effective Metal-Free Oxygen Reduction Electrocatalysts

ChemNanoMat ◽  
2018 ◽  
Vol 4 (9) ◽  
pp. 954-963 ◽  
Author(s):  
Yu Wang ◽  
Xu Jin ◽  
Ying Pan ◽  
Jianming Li ◽  
Ningning Guo ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Mesoporous Carbon ◽  
Free Oxygen ◽  
Nitrogen Doped ◽  
Metal Free

scholarly journals N8− Polynitrogen Stabilized on Nitrogen-Doped Carbon Nanotubes as an Efficient Electrocatalyst for Oxygen Reduction Reaction

Catalysts ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 864 ◽  
Author(s):  
Zhenhua Yao ◽  
Ruiyang Fan ◽  
Wangyang Ji ◽  
Tingxuan Yan ◽  
Maocong Hu
Keyword(s):  
Carbon Nanotubes ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Rotating Disk ◽  
Reduction Reaction ◽  
Rotating Disk Electrode ◽  
Nitrogen Doped ◽  
Metal Free ◽  
Temperature Programmed ◽  
Nitrogen Doped Carbon

In this work, non-traditional metal-free polynitrogen chain N8− deposited on a nitrogen-doped carbon nanotubes (PN-NCNT) catalyst was successfully synthesized by a facile cyclic voltammetry (CV) approach, which was further tested in an oxygen reduction reaction (ORR). The formation of PN on NCNT was confirmed by attenuated total reflectance–Fourier transform infrared spectroscopy (ATR-FTIR) and Raman spectroscopy. Partial positive charge of carbon within NCNT facilitated electron transfer and accordingly induced the formation of more PN species compared to CNT substrate as determined by temperature-programmed decomposition (TPD). Rotating disk electrode (RDE) measurements suggested that a higher current density was achieved over PN-NCNT than that on PN-CNT catalyst, which can be attributed to formation of the larger amount of N8− on NCNT. Kinetic study suggested a four-electron pathway mechanism over PN-NCNT. Moreover, it showed long stability and good methanol tolerance, which indicates its great potential application. This work provides insights on designing and synthesizing non-traditional metal-free catalysts for ORR in fuel cells.

scholarly journals Harnessing inherently hierarchical microstructures of plant biomass to construct three-dimensional nanoporous nitrogen-doped carbons as efficient and durable oxygen reduction electrocatalysts

RSC Advances ◽  
2019 ◽  
Vol 9 (69) ◽  
pp. 40326-40335 ◽  
Author(s):  
Hongqu Tang ◽  
Shilin Wei ◽  
Chuangchuang Yang ◽  
Peiyao Bai ◽  
Jiawei Qi ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction ◽  
Plant Biomass ◽  
Three Dimensional ◽  
Nitrogen Doped ◽  
Metal Free ◽  
Nitrogen Doped Carbon ◽  
Carbon Based

Naturally hierarchical microstructures of E. tirucalli are utilized to prepare a nanoporous nitrogen-doped carbon-based metal-free ORR electrocatalyst that is superior to the benchmark Pt/C catalyst in catalytic activity and durability.

scholarly journals Ultra-Stable Potassium Ion Storage of Nitrogen-Doped Carbon Nanofiber Derived from Bacterial Cellulose

Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1130
Author(s):  
Liang Ma ◽  
Jinliang Li ◽  
Zhibin Li ◽  
Yingying Ji ◽  
Wenjie Mai ◽  
...  
Keyword(s):  
Energy Density ◽  
Bacterial Cellulose ◽  
Density Functional ◽  
Carbon Nanofiber ◽  
Specific Capacity ◽  
Relative Energy ◽  
Large Radius ◽  
Nitrogen Doped ◽  
Ion Storage ◽  
Nitrogen Doped Carbon

As a promising energy storage system, potassium (K) ion batteries (KIBs) have received extensive attention due to the abundance of potassium resource in the Earth’s crust and the similar properties of K to Li. However, the electrode always presents poor stability for K-ion storage due to the large radius of K-ions. In our work, we develop a nitrogen-doped carbon nanofiber (N-CNF) derived from bacterial cellulose by a simple pyrolysis process, which allows ultra-stable K-ion storage. Even at a large current density of 1 A g−1, our electrode exhibits a reversible specific capacity of 81 mAh g−1 after 3000 cycles for KIBs, with a capacity retention ratio of 71%. To investigate the electrochemical enhancement performance of our N-CNF, we provide the calculation results according to density functional theory, demonstrating that nitrogen doping in carbon is in favor of the K-ion adsorption during the potassiation process. This behavior will contribute to the enhancement of electrochemical performance for KIBs. In addition, our electrode exhibits a low voltage plateau during the potassiation–depotassiation process. To further evaluate this performance, we calculate the “relative energy density” for comparison. The results illustrate that our electrode presents a high “relative energy density”, indicating that our N-CNF is a promising anode material for KIBs.

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