NO oxidation catalyzed by Ir4-based nanoclusters: the role of alloying on the catalytic activity

Mohajeri, Afshan; Hassani, Nasim; Mousavipour, S. Hosein

doi:10.1007/s00214-017-2152-5

Cited by 2 publications

(2 citation statements)

References 39 publications

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“…Third, the embedded Cu NPs with a large electron work function (4.68 eV) have extensive depletion region-spillover effects due to the contact to CuM semiconductor with high energy barrier, which further catalyzes NO 2 to form NO (eq ). , Cu + + normal2NO 2 + normale − → Cu 2 + + 2NO 2 − Cu + + NO 2 + 1 / 2 O 2 − + 1 / 2 normale − → Cu 2 + + NO 3 − + normalO − NO 2 ⃡ Cu NO + 1 / 2 normalO 2 …”

Section: Results and Discussionmentioning

confidence: 99%

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Synergistic Etching and Hydrogen Bonding-Induced Self-Assembly of MXene/MOF Hybrid Aerogel for Flexible Room-Temperature Gas Sensing

Liu,

Lv,

Zhang

et al. 2024

ACS Sens.

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Limited by insufficient active sites and restricted mechanical strength, designing reliable and wearable gas sensors with high activity and ductility remains a challenge for detecting hazardous gases. In this work, a thermally induced and solvent-assisted oxyanion etching strategy was implemented for selective pore opening in a rigid microporous Cu-based metal−organic framework (referred to as CuM). A conductive CuM/MXene aerogel was then self-assembled through cooperative hydrogen bonding interactions between the carbonyl oxygen atom in PVP grafted on the surface of defect-rich Cu-BTC and the surface functional hydroxyl group on MXene. A flexible NO 2 sensing performance using the CuM/ MXene aerogel hybridized sodium alginate hydrogel is finally achieved, demonstrating extraordinary sensitivity (S = 52.47 toward 50 ppm of NO 2 ), good selectivity, and rapid response/recovery time (0.9/4.5 s) at room temperature. Compared with commercial sensors, the relative error is less than 7.7%, thereby exhibiting significant potential for application in monitoring toxic and harmful gases. This work not only provides insights for guiding rational synthesis of ideal structure models from MOF composites but also inspires the development of high-performance flexible gas sensors for potential multiscenario applications.

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