| Téléchargement | - Voir la version de l’auteur : Air- and water-stable halide perovskite nanocrystals protected with nearly-monolayer carbon nitride for CO₂ photoreduction and water splitting (PDF, 3.5 Mio)
|
|---|
| DOI | Trouver le DOI : https://doi.org/10.1016/j.apsusc.2022.153276 |
|---|
| Auteur | Rechercher : Laishram, Devika; Rechercher : Zeng, Sheng; Rechercher : Alam, Kazi M.1; Rechercher : Kalra, Aarat P.; Rechercher : Cui, Kai1; Rechercher : Kumar, Pawan; Rechercher : Sharma, Rakesh K.; Rechercher : Shankar, Karthik |
|---|
| Affiliation | - Conseil national de recherches du Canada. Nanotechnologie
|
|---|
| Bailleur de fonds | Rechercher : Science and Engineering Research Board; Rechercher : Alberta Ministry of Advanced Education; Rechercher : CFREF; Rechercher : National Research Council of Canada. National Institute for Nanotechnology; Rechercher : Natural Sciences and Engineering Research Council of Canada; Rechercher : Canada Foundation for Innovation |
|---|
| Format | Texte, Article |
|---|
| Sujet | solar fuels; inorganic lead halide perovskite; scanning Kelvin probe force microscopy; n-n heterojunction; isotope labeled mass spectrometry |
|---|
| Résumé | Halide perovskites are exciting candidates for broad-spectrum photocatalysts but have the problem of ambient stability. Protective shells of oxides and polymers around halide perovskite nano- and micro-crystals provide a measure of chemical and photochemical resilience but the photocatalytic performance of perovskites is compromised due to low electron mobility in amorphous oxide or polymer shells and rapid charge carrier recombination on the surface. Herein an in situ surface passivation and stabilization of CsPbBr₃ nanocrystals was achieved using monolayered graphenic carbon nitride (CNM). Extensive characterization of carbon nitride protected CsPbBr₃ nanocrystals (CNMBr) indicated spherical CsPbBr3 nanoparticles encased in a few nm thick g-C₃N₄ sheets facilitating better charge separation via percolation/tunneling of charges on conductive 2D nanosheets. The CNMBr core-shell nanocrystals demonstrated enhanced photoelectrochemical water splitting performance and photocurrent reaching up to 1.55 mA cm⁻². The CNMBr catalyst was successfully deployed for CO₂ photoreduction giving carbon monoxide and methane as the reaction products. |
|---|
| Date de publication | 2022-04-04 |
|---|
| Maison d’édition | Elsevier |
|---|
| Dans | |
|---|
| Langue | anglais |
|---|
| Publications évaluées par des pairs | Oui |
|---|
| Identificateur | S0169433222008327 |
|---|
| Numéro du CNRC | NRC-NANO-174 |
|---|
| Exporter la notice | Exporter en format RIS |
|---|
| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
|---|
| Identificateur de l’enregistrement | c811c4a7-ce66-4b0e-8be6-3d7fcd88a873 |
|---|
| Enregistrement créé | 2023-02-03 |
|---|
| Enregistrement modifié | 2023-03-16 |
|---|
