A shiitake-derived nitrogen/oxygen/phosphorus co-doped carbon framework with hierarchical tri-modal porosity for high-performance electrochemical capacitors

RSC Advances ◽  
2016 ◽  
Vol 6 (85) ◽  
pp. 81527-81533 ◽  
Author(s):  
Hui Cao ◽  
Zhiyi Chen ◽  
Qiuli Chen ◽  
Chao Yang ◽  
Linrui Hou ◽  
...  
Keyword(s):  
High Performance ◽  
Electrochemical Capacitors ◽  
Carbon Framework ◽  
Co Doped

A shiitake-derived N/O/P co-doped carbon framework with hierarchical tri-modal porosity was scalably fabricated, and exhibited exceptional supercapacitances, thanks to synergistic contributions from architectural/compositional merits.

N,S co-doped 3D mesoporous carbon–Co3Si2O5(OH)4 architectures for high-performance flexible pseudo-solid-state supercapacitors

2017 ◽  
Vol 5 (25) ◽  
pp. 12774-12781 ◽  
Author(s):  
Xinran Li ◽  
Shiyuan Ding ◽  
Xiao Xiao ◽  
Jinying Shao ◽  
Jilei Wei ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Solid State ◽  
Mesoporous Carbon ◽  
High Performance ◽  
Electrochemical Capacitors ◽  
Co Doped

N,S co-doped 3D mesoporous carbon–Co3Si2O5(OH)4 composites are employed as electrodes together with activated carbon for pseudo-solid-state flexible electrochemical capacitors, which show a high performance.

N and S Co-doped Ordered Mesoporous Carbon: An Efficient Electrocatalyst for Oxygen Reduction Reaction in Microbial Fuel Cells

2020 ◽  
Vol 16 (4) ◽  
pp. 625-638
Author(s):  
Leila Samiee ◽  
Sedigheh Sadegh Hassani
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Microbial Fuel Cells ◽  
Carbon Materials ◽  
Reduction Reaction ◽  
Carbon Substrate ◽  
Promising Candidate ◽  
X Ray ◽  
Carbon Framework ◽  
Co Doped

Background: Porous carbon materials are promising candidate supports for various applications. In a number of these applications, doping of the carbon framework with heteroatoms provides a facile route to readily tune the carbon properties. The oxygen reduction reaction (ORR), where the reaction can be catalyzed without precious metals is one of the common applications for the heteroatom-doped carbons. Therefore, heteroatom doped catalysts might have a promising potential as a cathode in Microbial fuel cells (MFCs). MFCs have a good potential to produce electricity from biological oxidization of wastes at the anode and chemical reduction at the cathode. To the best of our knowledge, no studies have been yet reported on utilizing Sulfur trioxide pyridine (STP) and CMK-3 for the preparation of (N and S) doped ordered porous carbon materials. The presence of highly ordered mesostructured and the synergistic effect of N and S atoms with specific structures enhance the oxygen adsorption due to improving the electrocatalytic activity. So the optimal catalyst, with significant stability and excellent tolerance of methanol crossover can be a promising candidate for even other storage and conversion devices. Methods: The physico-chemical properties of the prepared samples were determined by Small Angle X-ray Diffraction (SAXRD), N2 sorption-desorption, Transmission Electron Microscopy (TEM), Field Emission Scanning Electron Microscopy (FESEM) and X-ray Photoelectron Spectroscopy (XPS). The prepared samples were further applied for oxygen reduction reaction (ORR) and the optimal cathode was tested with the Microbial Fuel Cell (MFC) system. Furthermore, according to structural analysis, The HRTEM, and SAXRD results confirmed the formation of well-ordered hexagonal (p6mm) arrays of mesopores in the direction of (100). The EDS and XPS approved that N and S were successfully doped into the CMK-3 carbon framework. Results: Among all the studied CMK-3 based catalysts, the catalyst prepared by STP precursor and pyrolysis at 900°C exhibited the highest ORR activity with the onset potential of 1.02 V vs. RHE and 4 electron transfer number per oxygen molecule in 0.1 M KOH. The high catalyst durability and fuel-crossover tolerance led to stable performance of the optimal cathode after 5000 s operation, while the Pt/C cathode-based was considerably degraded. Finally, the MFC system with the optimal cathode displayed 43.9 mW·m-2 peak power density showing even reasonable performance in comparison to a Pt/C 20 wt.%.cathode. Conclusions: The results revealed that the synergistic effect of nitrogen and sulfur co-doped on the carbon substrate structure leads to improvement in catalytic activity. Also, it was clearly observed that the porous structure and order level of the carbon substrate could considerably change the ORR performance.

In-situ growth of high-performance (Ag, Sn) co-doped CoSb3 thermoelectric thin films

2021 ◽  
Author(s):  
Zhuang-Hao Zheng ◽  
Jun-Yun Niu ◽  
Dong-Wei Ao ◽  
Bushra Jabar ◽  
Xiao-Lei Shi ◽  
...  
Keyword(s):  
Thin Films ◽  
High Performance ◽  
In Situ Growth ◽  
Thermoelectric Thin Films ◽  
Co Doped

scholarly journals Three-dimensional tellurium and nitrogen Co-doped mesoporous carbons for high performance supercapacitors

RSC Advances ◽  
2021 ◽  
Vol 11 (15) ◽  
pp. 8628-8635
Author(s):  
Chang Ki Kim ◽  
Jung-Min Ji ◽  
M. Aftabuzzaman ◽  
Hwan Kyu Kim
Keyword(s):  
High Performance ◽  
Carbon Materials ◽  
Synergetic Effect ◽  
Three Dimensional ◽  
Mesoporous Carbons ◽  
Capacitive Performance ◽  
Nitrogen Doped ◽  
Carbon Based Nanomaterials ◽  
Nitrogen Doped Carbon ◽  
Co Doped

The incorporation of the Te element into nitrogen-doped carbon-based nanomaterials is a good strategy to improve the capacitive performance of carbon materials and the incorporation of two types of atoms improves the overall capacitive performance of the materials due to a synergetic effect.

Titanium and nitrogen co-doped porous carbon for high-performance supercapacitors

2021 ◽  
Author(s):  
Yurou Chen ◽  
Xin Feng ◽  
Qi Wang ◽  
WenXian Gu ◽  
Wanyi Wu ◽  
...  
Keyword(s):  
Transition Metal ◽  
Porous Carbon ◽  
High Performance ◽  
Carbon Materials ◽  
Solvothermal Method ◽  
Capacitive Performance ◽  
Co Doped

This work presents a simple solvothermal method to synthesize Ti, N co-doped carbon materials, in which the inclusion of a small amount of transition metal Ti significantly improved their electrochemical capacitive performance.

Synthesis of spindle-like Co-doped LaFeO3 porous microstructure for high performance n-butanol sensor

2021 ◽  
pp. 130125
Author(s):  
Jiaqian Gu ◽  
Bo Zhang ◽  
Yanwei Li ◽  
Xingtang Xu ◽  
Guang Sun ◽  
...  
Keyword(s):  
High Performance ◽  
Porous Microstructure ◽  
Co Doped

N, O co-doped urchin-like carbon microspheres as high-performance anode materials for lithium ion batteries

2021 ◽  
Vol 361 ◽  
pp. 115562
Author(s):  
Chunli Zhou ◽  
Dengke Wang ◽  
Hui Yang ◽  
Ang Li ◽  
Huaihe Song ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
High Performance ◽  
Lithium Ion ◽  
Carbon Microspheres ◽  
Co Doped
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