Interstitial Atomic Bi Charge‐Alternating Processor Boosts Twofold Molecular Oxygen Activation Enabling Rapid Catalytic Oxidation Reactions at Room Temperature. (12th July 2022)

• Record Type: Journal Article
• Authors: Lian, Qiyu; Hu, Lingling; Ma, Dingren; Jiao, Yimu; Xia, Dehua; Huang, Yajing; Tang, Zhuoyun; Qu, Wei; Zhao, Huinan; He, Chun; Gang, Daniel D.
• Is Part Of: Advanced functional materials. Volume 32:Number 38(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-07-12
• Subjects: catalytic oxidation reactions -- charge‐alternating processors -- interstitial atomic Bi -- lattice distortions -- twofold molecular oxygen activation; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adfm.202205054
• Languages: English
• ISSNs: 1616-301X

Abstract

Abstract: Molecular O2 activation on metallic oxide‐based catalysts surfaces is pivotal for catalytic oxidation reactions but highly depends on the O2 activation pathways or mechanisms. Thus, comprehensively understanding the mechanism of efficient O2 activation is conducive to extending the fundamental principles for O2 activation theories and designing novel catalysts for catalytic oxidation reactions. In this study, it is declared that the interstitial atomic Bi (IA Bi) anchored in the lattice interstice of MnO2 (Bi/MnO2 ) is capable of triggering an alternative twofold O2 activation boosting the catalytic oxidation reactions at room temperature. Explicitly, the IA Bi facilely induces the local lattice distortion reconstructing the local charge landscape, thus weakening the O2 dissociation energy barrier by elongating the OO bond length. And, the charge‐alternating process engineered by the IA Bi drives the alternative twofold O2 activation of the adjacent lattice oxygen and adsorbs dangling oxygen assisted by the consecutive O2 replenishment. Conclusively, this study not only declares the role of IA Bi in driving the charge‐alternating process during the twofold O2 activation but also extends the fundamental principles toward O2 activation mechanisms for catalytic oxidation reactions via atomic makeup engineering. Abstract : The interstitial atomic Bi (IA Bi) anchored in the lattice interstice of MnO2 induces the local lattice distortion and charge landscape reconstruction. Consequently, the IA Bi charge‐alternating processor triggers an alternative twofold O2 activation of the adjacent lattice oxygen and adsorbed dangling oxygen assisted by the consecutive O2 replenishment further enabling the alternative catalytic oxidation reactions at room temperature.