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Influence of structure on catalytic activity of nano - manganese oxide
Radiation Physics and Chemistry ( IF 2.8 ) Pub Date : 2020-06-01 , DOI: 10.1016/j.radphyschem.2020.108681
R. Puspalata , D. Mal , S. Amirthapandian , S. Rangarajan

Abstract Nano-oxides of manganese synthesized from the radiolytic reduction of permanganate (MnO4-) medium at varying pH in ambient temperature showed differences in structural properties. In the present communication, we report the effect of variance in the structural morphology on the hetero-catalytic activity of manganese nano-oxides. Applications of these radiolytically generated manganese nano-oxides, as catalysts were tested by monitoring the decomposition of H2O2 and N2H4 solutions at room temperature and suitable mechanism has been proposed. The catalytic decomposition rates of H2O2 and N2H4 solutions increased in the presence of oxides formed from the radiolysis of alkaline permanganate solutions. The kinetics of the catalytic activity of the nano-oxides was correlated with their high surface area, large pore volume, adsorbed –OH groups, varying oxidation states of Mn, and their microstructures.

中文翻译:

结构对纳​​米氧化锰催化活性的影响

摘要 由高锰酸盐 (MnO4-) 介质在不同 pH 值和环境温度下经辐解还原合成的纳米锰氧化物在结构特性上存在差异。在本通讯中,我们报告了结构形态变化对锰纳米氧化物异质催化活性的影响。通过监测室温下 H2O2 和 N2H4 溶液的分解来测试这些辐射生成的锰纳米氧化物作为催化剂的应用,并提出了合适的机制。在碱性高锰酸盐溶液辐射分解形成的氧化物存在的情况下,H2O2 和 N2H4 溶液的催化分解速率增加。纳米氧化物的催化活性动力学与其高表面积、大孔体积、吸附的-OH 基团、
更新日期:2020-06-01
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