Photogenerated carrier behavior at a gas–solid interface for CO₂ adsorption on Cs₂AgBiBr₆ nanocrystals

Abstract

We used a combination of in situ TPV measurements and DFT calculations for the first time to understand the carrier transfer process at a CO2/Cs2AgBiBr6 gas–solid interface.

Cs2AgBiBr6 Quantum Dots Supported on Co3O4 Nanocages for Acetone Detection at Room Temperature

“…Similarly, the crystal faces of CABB conform to the standard card (ICSD Coll. Code 230901) and with the reported literature . After CABB QDs are added, the main peak position of the CABB QDs-Co 3 O 4 composite material has not moved compared to pure Co 3 O 4 , which can be attributed to the lower concentration of CABB QDs.…”

Boosting Hydrogenation of Graphene Quantum Dot-Modified Photocatalysts: Specific Functionalized Modulation at Active Sites

“…The group-specific interaction-mediated photo-charge transport dynamics between the active sites (pGQDs or rGQDs) and around the reactant molecules (4-NP) dominate the key mechanism of hydrogenation efficiency, which can also be determined through TPV analysis. In our previous study, the photo-charge transport behaviors in the gas–solid interface were investigated to verify the intrinsic mechanism of reduction enhancement promoted by strong adsorption at specific active sites. , Similarly, TPV analyses of all the catalysts in this study (HT, HT/PDDA, HT/PDDA/pGQDs, and HT/PDDA/rGQDs, respectively) before and after the adsorption of 4-NP were separately performed to gain insights into the photo-charge migration dynamics at the catalyst-reactant interface. As illustrated in Figure S13a, the contact between 4-NP molecules and pure HT NPs caused a polarity reversal of the TPV response, further confirming the capture of surface hydroxyl groups; this is similar to the results for HT/PDDA NPs (Figure c).…”

Assessment on gas‐polyethylene terephthalate solid interface partial discharge properties of C4F7N/CO2 gas mixture for eco‐friendly gas insulating transformer

“…At present, density functional theory (DFT) calculation have been widely utilised to explore the reaction paths and reaction mechanisms of various chemical systems, so as to the gas insulating medium or gas-solid interface interaction [33][34][35][36]. Herein, we analysed the reaction mechanism of the C 4 F 7 N gas-PET solid film based on DFT in this paper.…”