Relation of surface chemistry with properties of skn active carbons

In this paper, we synthesize active carbon samples with various content of nitrogen and oxygen of heteroatoms, as well as surface functional groups. We determine the specific surface area and porosity of the obtained carbon, study its behaviour in the model oxide reduction processes, notably electrochemical oxygen reduction and catalytic decomposition of hydrogen peroxide. Relying on the data analysis, we characterize the impact of surface chemistry and porosity on the electron-donating ability of nitrogen and oxygen containing active carbons.We take the perspective that this carbon can be applied as a fuel cell electrocatalyst

Publication year: 
546.06; 544.032.76:723.54
С. 67—72, укр., Іл. 3. Табл. 1. Бібліогр.: 6 назв.

1. Matter P.H., Zhang L., Ozkan U.S. The role of nanostructure in nitrogen-containing carbon catalysts for the oxygen reduction reaction // J. of Catalysis. — 2006. — 239. — P. 83—96.
2. Maldonado S., Stevenson K.J. Influence of nitrogen doping on oxygen reduction electrocatalysis at carbon nanofiber electrodes // J. Phys. Chem. B. — 2005. — 109. — Р. 4707—4716.
3. Strelko V.V., Kartel N.T., Dukhno I.N. et al. Mechanism of reductive oxygen adsorption on active carbons with various surface chemistry // Surf. Sci. — 2004. — 548, № 1-3. — P. 281—290.
4. А.с. 820160 (СССР). Способ получения азотсодержащего углеродного адсорбента / В.В. Стрелко, В.И. Галинская, В.М. Давыдов и др. — 1980.
5. Ставицкая С.С., Стрелко В.В., Цыба Н.Н. и др. Пути направленного регулирования катализной активности углеродных материалов из разного сырья // Экотехника и ресурсосбережения. — 2006. — № 4. — С. 12— 19.
6. Strelko V.V., Kuts V.S., Thrower P.A. Molecular structure of active carbons containing heteroatoms of B, P and N in graphite-like matrix // Carbon. — 2000. — 38. — Р. 1499—1501.

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