Monodispersed Ni active sites anchored on N-doped porous carbon nanosheets as high-efficiency electrocatalyst for hydrogen peroxide sensing

2021 ◽  
pp. 338812
Author(s):  
Junxing Hao ◽  
Mengqi Zhang ◽  
Can Wu ◽  
Kangbing Wu
Keyword(s):  
Hydrogen Peroxide ◽  
Porous Carbon ◽  
Active Sites ◽  
High Efficiency ◽  
Carbon Nanosheets

Preparation of Fe/N co-doped hierarchical porous carbon nanosheets derived from chitosan nanofibers for high-performance supercapacitors

2021 ◽  
pp. 1-16
Author(s):  
Yaqi Yang ◽  
Ziqiang Shao ◽  
Feijun Wang
Keyword(s):  
Specific Surface ◽  
Specific Capacitance ◽  
Surface Area ◽  
Double Layer ◽  
Specific Surface Area ◽  
Porous Carbon ◽  
Active Sites ◽  
Transport Pathway ◽  
Carbon Nanosheets ◽  
Hierarchical Porous

Abstract Due to the low specific capacitance and small specific surface area of conventional carbon materials used as electrode materials for double-layer capacitors, the search for more ideal materials and ingenious preparation methods remains a major challenge. In this study, fractional porous carbon nanosheets were prepared by co-doping Fe and N with chitosan as nitrogen source. The advantage of this method is that the carbon nanosheets can have a large number of pore structures and produce a large specific surface area. The presence of Fe catalyzes the graphitization of carbon in the carbon layer during carbonization process, and further increases the specific surface area of the electrode material. This structure provides an efficient ion and electron transport pathway, which enables more active sites to participate in the REDOX reaction, thus significantly enhancing the electrochemical performance of SCs. The specific surface area of CS-800 is up to 1587 m2 g−1. When the current density is 0.5 A g−1, the specific capacitance of CS-800 reaches 308.84 F g−1, and remains 84.61 % of the initial value after 10,000 cycles. The Coulomb efficiency of CS-800 is almost 100 % after a long cycle, which indicates that CS-800 has more ideal double-layer capacitance and pseudo capacitance.

Discovery of main group single Sb–N4 active sites for CO2 electroreduction to formate with high efficiency

2020 ◽  
Vol 13 (9) ◽  
pp. 2856-2863 ◽  
Author(s):  
Zhuoli Jiang ◽  
Tao Wang ◽  
Jiajing Pei ◽  
Huishan Shang ◽  
Danni Zhou ◽  
...  
Keyword(s):  
Active Sites ◽  
High Efficiency ◽  
Main Group ◽  
Single Atom ◽  
Carbon Nanosheets ◽  
Co2 Electroreduction

We discover that an Sb single atom material consisting of Sb–N4 moieties anchored on N-doped carbon nanosheets can serve as a CO2RR catalyst to produce formate with high efficiency.

Facile synthesis of 3D N-doped porous carbon nanosheets as highly active electrocatalysts toward the reduction of hydrogen peroxide

Nanoscale ◽  
2018 ◽  
Vol 10 (31) ◽  
pp. 14923-14930 ◽  
Author(s):  
Nannan Lu ◽  
Tingting Zhang ◽  
Xiaoyi Yan ◽  
Yue Gu ◽  
He Liu ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Porous Carbon ◽  
High Performance ◽  
Facile Synthesis ◽  
One Pot ◽  
Carbon Nanosheets ◽  
Highly Active

3D N-doped porous carbon nanosheets prepared by one-pot pyrolysis exhibit high performance for the detection of H2O2.

Ultrafine NiCoP-decorated N,S,P-codoped hierarchical porous carbon nanosheets as an efficient bifunctional electrocatalyst for oxygen reduction and oxygen evolution

2019 ◽  
Vol 3 (9) ◽  
pp. 1849-1858 ◽  
Author(s):  
Hua-Jie Niu ◽  
Ai-Jun Wang ◽  
Lu Zhang ◽  
Jing-Jing Guo ◽  
Jiu-Ju Feng
Keyword(s):  
Oxygen Evolution ◽  
Porous Carbon ◽  
Electrocatalytic Activity ◽  
Active Sites ◽  
Hierarchical Porous Carbon ◽  
Carbon Nanosheets ◽  
Bifunctional Electrocatalyst ◽  
Pyrolysis Method ◽  
Hierarchical Porous ◽  
The Stability

Large-scaled NiCoP/NSP-HPCNS were fabricated by a facile pyrolysis method. Porous carbon nanosheets provided extra active sites easily available for reactants, and dramatically improved the stability. The nanocomposites displayed remarkable enhancement in electrocatalytic activity and durability for ORR and OER.

Ionic Polyimide Derived Porous Carbon Nanosheets as High‐Efficiency Oxygen Reduction Catalysts for Zn–Air Batteries

2020 ◽  
Vol 26 (29) ◽  
pp. 6525-6534 ◽  
Author(s):  
Kejun Tu ◽  
Lingyi Zou ◽  
Chongqing Yang ◽  
Yuezeng Su ◽  
Chenbao Lu ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Porous Carbon ◽  
High Efficiency ◽  
Carbon Nanosheets ◽  
Oxygen Reduction Catalysts ◽  
Reduction Catalysts

Spinel MnCo2O4 nanoparticles cross-linked with two-dimensional porous carbon nanosheets as a high-efficiency oxygen reduction electrocatalyst

Nano Research ◽  
2016 ◽  
Vol 9 (7) ◽  
pp. 2110-2122 ◽  
Author(s):  
Gengtao Fu ◽  
Zhenyuan Liu ◽  
Jingfei Zhang ◽  
Jiayan Wu ◽  
Lin Xu ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Porous Carbon ◽  
High Efficiency ◽  
Two Dimensional ◽  
Carbon Nanosheets ◽  
Mnco2o4 Nanoparticles

Efficient CO2 electroreduction over pyridinic-N active sites highly exposed on wrinkled porous carbon nanosheets

2018 ◽  
Vol 351 ◽  
pp. 613-621 ◽  
Author(s):  
Hongqiang Li ◽  
Nan Xiao ◽  
Mingyuan Hao ◽  
Xuedan Song ◽  
Yuwei Wang ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Active Sites ◽  
Carbon Nanosheets ◽  
Co2 Electroreduction ◽  
Pyridinic N
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