Preparation and Characterization of Hollow Carbon Nanospheres Supported Metallic Catalysts by Using One-Step Pyrolysis Method

A versatile one-step pyrolysis method is successfully employed to fabricate hollow carbon nanospheres (HCNs, ca. 60 nm in diameter) supported with metallic nanoparticle catalyst. The resultant catalyst hybrid was characterized by using TEM, FTIR, TGA measurements. It is confirmed that, as the carbon precursor and hollow core/shell structure template, hollow chitosan nanospheres provide the important adsorption sites for the metallic precursor. The one-step pyrolysis process at 750 °C under nitrogen atmosphere results in the simultaneous decomposition of the chitosan nanospheres to HCNs and the adsorbed metal salt complex to metallic nanoparticles. It is found that metallic nanoparticles with an average diameter of ca. 4 nm highly dispersed in the carbon shell of HCNs, and no aggregation phenomenon occurs under the high deposition temperature. As a demonstration, the HCNs-supported Pt catalyst for the electrochemical methanol oxidation was studied.

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Chemical Vapor Deposition Synthesis and Characterization of Hollow Carbon Nanospheres with High Specific Capacitance and Excellent Cycling Stability

Journal of Electronic Materials ◽

10.1007/s11664-021-08818-7 ◽

2021 ◽

Author(s):

Mehrdad Teymourzadeh ◽

Majid Seifi ◽

Mohammad Bagher Askari

Keyword(s):

Chemical Vapor Deposition ◽

Specific Capacitance ◽

Vapor Deposition ◽

Chemical Vapor ◽

High Specific Capacitance ◽

Synthesis And Characterization ◽

Carbon Nanospheres ◽

Excellent Cycling Stability ◽

Hollow Carbon

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One-step synthesis of hollow carbon nanospheres in non-coordinating solvent

Carbon ◽

10.1016/j.carbon.2014.11.045 ◽

2015 ◽

Vol 83 ◽

pp. 180-182 ◽

Cited By ~ 12

Author(s):

Guan Wang ◽

Xiaoyong Pan ◽

Jatin N. Kumar ◽

Ye Liu

Keyword(s):

Carbon Nanospheres ◽

One Step ◽

Hollow Carbon

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Synthesis and characterization of core-shell HgO/C colloids and hollow carbon nanospheres by chemical vapor deposition and investigation of its conductivity properties

Solid State Sciences ◽

10.1016/j.solidstatesciences.2018.08.010 ◽

2018 ◽

Vol 84 ◽

pp. 95-103

Author(s):

Mehrdad Teymourzadeh ◽

Majid Seifi ◽

Iraj Hasanzadeh

Keyword(s):

Chemical Vapor Deposition ◽

Vapor Deposition ◽

Chemical Vapor ◽

Synthesis And Characterization ◽

Core Shell ◽

Carbon Nanospheres ◽

Hollow Carbon

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Effect of Calcination Temperature on the Morphology of Carbon Nanosphere Synthesized from Polymethylmethacrylate

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.974.55 ◽

2014 ◽

Vol 974 ◽

pp. 55-59 ◽

Cited By ~ 1

Author(s):

Abdullah F. Al-Ahmadi ◽

Mohammed A. Al-Daous ◽

Tawfik A. Saleh

Keyword(s):

Calcination Temperature ◽

Core Shell ◽

Carbon Nanospheres ◽

Batch Mode ◽

Resorcinol Formaldehyde ◽

X Ray ◽

The Core ◽

Shell Particles ◽

Hollow Carbon

In this work, hollow carbon nanospheres (HCNs) were synthesized by carbonizing core/shell particles of polymethylmethacrylate (PMMA)/ resorcinol formaldehyde. The core/shell particles were prepared using emulsion polymerization; polymethylmethacrylate as a template and resorcinol-formaldehyde polymer as the carbon source. Spheres were first synthesized by batch mode polymerization and then the shell was polymerized on the surface of the spheres. The composite was stabilized, and then carbonized. The effect of calcination temperature was investigated in the range between 200-500oC. Scanning electron microscopy (SEM), energy-dispersive X-ray spectrometer (EDX), Raman and Fourier transform infrared (FTIR) were used for characterization of the resulting carbon.

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One-step pyrolysis method for the synthesis of highly efficient 3D hollow carbon nanostructure supported metallic catalysts

Journal of Materials Chemistry ◽

10.1039/b913767j ◽

2009 ◽

Vol 19 (48) ◽

pp. 9141 ◽

Cited By ~ 12

Author(s):

Ya Ding ◽

Bo Jin ◽

Gang Gu ◽

Xing-Hua Xia

Keyword(s):

Carbon Nanostructure ◽

Highly Efficient ◽

Pyrolysis Method ◽

One Step ◽

Hollow Carbon

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Deflagration synthesis of nitrogen/fluorine co-doped hollow carbon nanoparticles with excellent oxygen reduction performance

Inorganic Chemistry Frontiers ◽

10.1039/c8qi00200b ◽

2018 ◽

Vol 5 (6) ◽

pp. 1307-1313 ◽

Cited By ~ 8

Author(s):

Yousong Liu ◽

Bing Huang ◽

Shengjie Peng ◽

Tao Wang ◽

Guangbin Ji ◽

...

Keyword(s):

Specific Surface ◽

Oxygen Reduction ◽

Surface Area ◽

Doping Level ◽

Carbon Nanoparticles ◽

Carbon Nanospheres ◽

Graphitization Degree ◽

One Step ◽

Hollow Carbon ◽

Co Doped

NaN3/C5F5N deflagration is developed to synthesize hollow carbon nanospheres with high N/F doping level, graphitization degree and specific surface area in one step, which exhibit excellent ORR performance.

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Soft-template assisted synthesis of Fe/N-doped hollow carbon nanospheres as advanced electrocatalysts for the oxygen reduction reaction in microbial fuel cells

Journal of Materials Chemistry A ◽

10.1039/c7ta05522f ◽

2017 ◽

Vol 5 (36) ◽

pp. 19343-19350 ◽

Cited By ~ 38

Author(s):

Lihua Zhou ◽

Chunli Yang ◽

Jing Wen ◽

Peng Fu ◽

Yaping Zhang ◽

...

Keyword(s):

Microbial Fuel Cells ◽

Reduction Reaction ◽

Soft Template ◽

Hollow Nanospheres ◽

Carbon Nanospheres ◽

Pyrolysis Method ◽

Hollow Carbon ◽

Template Assisted Synthesis ◽

Co Doped ◽

Poly Aniline

Fe and N-co-doped hollow carbon nanospheres have been fabricated via a simple pyrolysis method using poly(aniline-co-pyrrole) copolymer hollow nanospheres as precursors. The resulting catalyst displayed potential application as a cathode in a MFC.

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