Nitrogen and Sulfur Codoped Graphene: Multifunctional Electrode Materials for High-Performance Li-Ion Batteries and Oxygen Reduction Reaction

2014 ◽  
Vol 26 (35) ◽  
pp. 6186-6192 ◽  
Author(s):  
Wei Ai ◽  
Zhimin Luo ◽  
Jian Jiang ◽  
Jianhui Zhu ◽  
Zhuzhu Du ◽  
...  
Materials ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 4779
Author(s):  
Yuzhe Wu ◽  
Yuntong Li ◽  
Conghui Yuan ◽  
Lizong Dai

Introduction of both nitrogen and transition metal elements into the carbon materials has demonstrated to be a promising strategy to construct highly active electrode materials for energy shortage. In this work, through the coordination reaction between Fe3+ and 1,3,5–tris(4–aminophenyl)benzene, metallosupramolecular polymer precursors are designed for the preparation of carbon flakes co-doped with both Fe and N elements. The as-prepared carbon flakes display wrinkled edges and comprise Fe3C nanoparticle and active site of Fe–Nx. These carbon materials exhibit excellent electrocatalytic performance. Towards oxygen reduction reaction (ORR), the optimized sample has Eonset and Ehalf-wave of 0.93 V and 0.83 V in alkaline system, respectively, which are very close to that of Pt/C. This approach may offer a new way to high performance and low-cost electrochemical catalysts.


Author(s):  
Kathryn Holguin ◽  
Motahareh Mohammadiroudbari ◽  
Kaiqiang Qin ◽  
Chao Luo

Na-ion batteries (NIBs) are promising alternatives to Li-ion batteries (LIBs) due to the low cost, abundance, and high sustainability of sodium resources. However, the high performance of inorganic electrode materials...


2016 ◽  
Vol 4 (2) ◽  
pp. 620-631 ◽  
Author(s):  
Islam M. Mosa ◽  
Sourav Biswas ◽  
Abdelhamid M. El-Sawy ◽  
Venkatesh Botu ◽  
Curtis Guild ◽  
...  

Understanding the origin of manganese oxide activity for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is a key step towards rationally designing of highly active catalysts capable of competing with the widely used, state-of-art noble metal catalysts.


2017 ◽  
Vol 5 (42) ◽  
pp. 22163-22169 ◽  
Author(s):  
Baolong Zhou ◽  
Liangzhen Liu ◽  
Pingwei Cai ◽  
Guang Zeng ◽  
Xiaoqiang Li ◽  
...  

Two nitrogen-rich porous organic polymers (POPs) were prepared via Schiff base chemistry. Carbonization of these POPs results in porous carbon nanohybrids which exhibit excellent catalytic activity toward the oxygen reduction reaction (ORR).


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