scholarly journals ZIF-8@ZIF-67-Derived Co Embedded into Nitrogen-Doped Carbon Nanotube Hollow Porous Carbon Supported Pt as an Efficient Electrocatalyst for Methanol Oxidation

Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2491
Author(s):  
Ruiying Wang ◽  
Mengran Lou ◽  
Jie Zhang ◽  
Zhipeng Sun ◽  
Zhiqian Li ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Methanol Oxidation ◽  
Porous Carbon ◽  
Carbon Materials ◽  
Direct Methanol Fuel Cells ◽  
Methanol Oxidation Reaction ◽  
Onset Potential ◽  
Support Materials ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon

It is of prime importance to develop anode electrocatalysts for direct methanol fuel cells (DMFCs) with good performance, which is critical for their commercial applications. Metal-organic framework (MOF)-derived carbon materials are extensively developed as supports of catalysts. Herein, Co embedded nitrogen-doped carbon nanotube hollow porous carbon (Co-NCNT-HPC) derived from MOFs have been fabricated, which were synthesized by pyrolyzing at an optimized temperature of 800 °C using ZIF-8@ZIF-67 as a precursor. The presence of ZIF-8@ZIF-67 ensures the doping of nitrogen and the large specific surface area of the support materials at high temperatures. A Pt/Co-NCNT-HPC800 sample, which was synthesized using Co-NCNT-HPC800 as a support, showed an enhanced mass activity of 416.2 mA mg−1Pt for methanol oxidation reaction (MOR), and the onset potential of COad oxidation of 0.51 V, which shifted negatively about 0.13 V compared with Pt/C (20%). Moreover, the Pt/Co-NCNT-HPC800 sample exhibits high stability. This work provides a facile strategy for MOF-derived carbon materials to construct advanced electrocatalysts for MOR.

scholarly journals High-performance electrocatalyst based on polyazine derived mesoporous nitrogen-doped carbon for oxygen reduction reaction

RSC Advances ◽  
2021 ◽  
Vol 11 (47) ◽  
pp. 29555-29563
Author(s):  
Songlin Zhao ◽  
Fushan Chen ◽  
Qunfeng Zhang ◽  
Lingtao Meng
Keyword(s):  
Renewable Energy ◽  
Oxygen Reduction Reaction ◽  
Porous Carbon ◽  
High Performance ◽  
Carbon Materials ◽  
Reduction Reaction ◽  
Nitrogen Doped ◽  
Metal Free ◽  
Energy Conversion Systems ◽  
Nitrogen Doped Carbon

Nitrogen-doped porous carbon materials have high potential in metal-free electrocatalysts, which is essential for several renewable energy conversion systems.

Construction of a hollow porous carbon spheres@CoP/nitrogen-doped carbon supported platinum catalyst for high performance methanol oxidation

2019 ◽  
Vol 43 (27) ◽  
pp. 10784-10791
Author(s):  
Huanhuan Zhang ◽  
Li Ma ◽  
Mengyu Gan ◽  
Fei Xie ◽  
Hongmei He ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
High Performance ◽  
Platinum Catalyst ◽  
Methanol Oxidation Reaction ◽  
Carbon Spheres ◽  
Nitrogen Doped ◽  
Co Tolerance ◽  
Supported Platinum ◽  
Nitrogen Doped Carbon ◽  
Porous Carbon Spheres

A Pt–HPCS@CoP/NC catalyst with excellent catalytic activity, CO-tolerance and durability was synthesized for the methanol oxidation reaction.

Nickel nanocrystal/nitrogen-doped carbon composites as efficient and carbon monoxide-resistant electrocatalysts for methanol oxidation reactions

Nanoscale ◽  
2020 ◽  
Vol 12 (42) ◽  
pp. 21687-21694 ◽  
Author(s):  
Na Wu ◽  
Meixu Zhai ◽  
Fei Chen ◽  
Xue Zhang ◽  
Ruihong Guo ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Oxidation Reaction ◽  
Low Cost ◽  
Methanol Oxidation Reaction ◽  
Carbon Composites ◽  
Oxidation Reactions ◽  
Facile Synthesis ◽  
Nitrogen Doped ◽  
Cost Efficient ◽  
Nitrogen Doped Carbon

Owing to its facile synthesis, outstanding activity and high stability, Ni/N–C@500 composite is promising as a low-cost, efficient and CO-resistant electrocatalyst for methanol oxidation reaction (MOR).

Pt Nanoparticles Supported on Nitrogen-Doped Carbon-TiO2 Composite as a High-Performance Electrocatalyst for Methanol Oxidation

2020 ◽  
Vol 18 (1) ◽  
Author(s):  
Jun Zhang ◽  
Jiao Chen ◽  
Fan Zhou ◽  
Xuewen Zeng ◽  
An Xing ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Surface Area ◽  
Methanol Oxidation ◽  
Electrocatalytic Activity ◽  
Direct Methanol Fuel Cells ◽  
Pt Nanoparticles ◽  
Great Promise ◽  
X Ray ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon

Abstract Monodispersed Pt nanoparticles supported on a TiO2 and nitrogen-doped carbon composite (TiO2/NDC) were successfully synthesized via an efficient in situ self-assembly strategy and microwave-assisted polyol process. The Pt/TiO2/NDC catalyst exhibited superior electrocatalytic activity toward the methanol oxidation reaction (MOR). The electrochemically active surface area of the Pt/TiO2/NDC catalyst was twofold higher than that of the Pt/C/NDC catalyst. In addition, the Pt/TiO2/NDC catalyst revealed a better electrocatalytic activity and CO-tolerance as well as a stability toward the MOR. The combined characterization from Fourier transform infrared spectrum, Brunauer-Emmett-Teller surface area, scanning electron microscopy, transmission electron microscopy, energy dispersive spectrometer, thermogravimetric analysis, inductively coupled plasma atomic emissions spectrometry, X-ray diffraction, and X-ray photoelectron spectroscopy analyses demonstrated that the superior catalytic performance and stability of the Pt/TiO2/NDC catalysts likely arose from the synergistic effect of their unique morphology and composition as well as the electronic effect between the TiO2/NDC and Pt. This electrocatalyst holds great promise for application in direct methanol fuel cells.

Thermally driven interfacial diffusion synthesis of nitrogen-doped carbon confined trimetallic Pt3CoRu composites for the methanol oxidation reaction

2019 ◽  
Vol 7 (30) ◽  
pp. 18143-18149 ◽  
Author(s):  
Qingmei Wang ◽  
Siguo Chen ◽  
Huiying Lan ◽  
Pan Li ◽  
Xinyu Ping ◽  
...  
Keyword(s):  
Methanol Oxidation ◽  
Oxidation Reaction ◽  
Methanol Oxidation Reaction ◽  
Co Poisoning ◽  
Interfacial Diffusion ◽  
Nitrogen Doped ◽  
Thermally Driven ◽  
Nitrogen Doped Carbon

A thermally driven interfacial diffusion strategy was employed to fabricate a trimetallic Pt3CoRu/C@NC catalyst with excellent enhancement towards the MOR in terms of superior stability and anti-CO poisoning.

Facile synthesis of porous carbon materials with extra high nitrogen content for supercapacitor electrodes

2019 ◽  
Vol 43 (9) ◽  
pp. 3713-3718 ◽  
Author(s):  
Yun Liu ◽  
Xiaoqiong Hao ◽  
Likui Wang ◽  
Yingcong Xu ◽  
Jing Liu ◽  
...  
Keyword(s):  
Nitrogen Content ◽  
Porous Carbon ◽  
Carbon Materials ◽  
Three Dimensional ◽  
High Nitrogen Content ◽  
High Nitrogen ◽  
Facile Synthesis ◽  
Nitrogen Doped ◽  
Porous Carbon Materials ◽  
Nitrogen Doped Carbon

Three-dimensional porous nitrogen-doped carbon materials with extra high nitrogen content produced by directly carbonizing nitrogen-enriched precursors for supercapacitors.

Nitrogen doped carbon materials derived from Gentiana scabra Bunge as high-performance catalysts for the oxygen reduction reaction

2017 ◽  
Vol 41 (15) ◽  
pp. 7392-7399 ◽  
Author(s):  
Cancan Wang ◽  
Winston Duo Wu ◽  
Ying Wang ◽  
Dan Xu ◽  
Feng Yan
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Porous Carbon ◽  
High Performance ◽  
Carbon Materials ◽  
Reduction Reaction ◽  
Alkaline Solutions ◽  
Gentiana Scabra ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon

Gentiana scabraBunge-derived porous carbon materials as high-performance catalysts for the oxygen reduction reaction in both acidic and alkaline solutions were introduced.

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