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Synergetic palladium-modulated and B/N Lewis pair-functionalized flocculent carbon fibres as robust catalyst: Mechanism insight for indoor HCHO decomposition by Wenjing Yuan; Chonggang Wang; Tao Qi; Yinhua Wan; Shuping Zhang; Yaoyao Wu; Kang Hu; Guan Peng; Baozhi Zhang; Shaoyuan Shi is a Energy article available to read on EtoBox.

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In this study, electron-deficient boron and electron-rich nitrogen are designed as the B/N Lewis pair to capture HCHO, and in next step the adsorbed HCHO is degraded into CO2 and H2O (mineralization efficiency 97 %) via the Fenton-like O2 activation and generation singlet oxygen (1O2), superoxide radicals (•O2 −) and hydroxyl radicals (•OH) derived from the interaction between palladium nanoparticles and oxygen molecules. Experimental data and theoretical calculations reveal the optimal path as follows: HCHO + OH* (•OH) → HCHOOH* → HCOOH + OH* (•OH) → CHO2* + O* (1O2 and •O2 −) → CO2, which correspond to the lowest energy barrier for elementary reaction. This study demonstrates a strong catalytic HCHO oxidation process and a new insights into exploiting synergetic palladium-modulated and B/N Lewis pair-functionalized flocculent carbon fibres for room-temperature HCHO decomposition.

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Author

Wenjing Yuan; Chonggang Wang; Tao Qi; Yinhua Wan; Shuping Zhang; Yaoyao Wu; Kang Hu; Guan Peng; Baozhi Zhang; Shaoyuan Shi

Publisher

Elsevier BV

Published

2022

Language

EN

Field

Energy (Physical Sciences)