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Surface‐functionalized Carbon Black as Catalyst for the Direct Production of Hydrogen Peroxide by the Oxidation of Hydroxylamine
Author(s) -
Song Wei,
Li Yong,
Guo Xiaohui,
Li Juan,
Shen Wenjie
Publication year - 2010
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201090133
Subject(s) - chemistry , catalysis , hydroxylamine , hydrogen peroxide , carbon black , adsorption , inorganic chemistry , desorption , yield (engineering) , nuclear chemistry , fourier transform infrared spectroscopy , carbon fibers , organic chemistry , chemical engineering , composite number , natural rubber , materials science , engineering , metallurgy , composite material
Carbon black (CB) without micropores was functionalized by mixed acid and used to explore the surface chemistry effect on the production of hydrogen peroxide (H 2 O 2 ). The CB materials were characterized by N 2 adsorption‐desorption, XRD, SEM, FTIR, and TPD. The results of different characterization methods indicated that both the textural features and the surface chemical properties of CB were significantly modified by the acidic treatment. The catalytic performance of the modified CBs for hydroxylamine (NH 2 OH) oxidation increased with increasing the surface oxygen‐containing species. The yield of H 2 O 2 approached 30% with the corresponding concentration of 73.9 mmol·L −1 ( w =0.25%) over the most promising CB catalyst, which was much superior to the results obtained on supported noble metals. Correlations between catalytic activity and concentration of different surface functional groups on the CB samples confirmed that the quinonoid species might be the active species.