Unique Dual-Sites Boosting Overall CO2 Photoconversion by Hierarchical Electron Harvesters.
Small
; 17(40): e2103796, 2021 10.
Article
en En
| MEDLINE
| ID: mdl-34423554
ABSTRACT
Low selectivity and poor activity of photocatalytic CO2 reduction process are usually limiting factors for its applicability. Herein, a hierarchical electron harvesting system is designed on CoNiP hollow nano-millefeuille (CoNiP NH), which enables the charge enrichment on CoNi dual active sites and selective conversion of CO2 to CH4 . The CoNiP serves as an electron harvester and photonic "black hole" accelerating the kinetics for CO2 -catalyzed reactions. Moreover, the dual sites form from highly stable CoONiC intermediates, which thermodynamically not only lower the reaction energy barrier but also transform the reaction pathways, thus enabling the highly selective generation of CH4 from CO2 . As an outcome, the CoNiP NH/black phosphorus with dual sites leads to a tremendously improved photocatalytic CH4 generation with a selectivity of 86.6% and an impressive activity of 38.7 µmol g-1 h-1 .
Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Dióxido de Carbono
/
Electrones
Idioma:
En
Revista:
Small
Asunto de la revista:
ENGENHARIA BIOMEDICA
Año:
2021
Tipo del documento:
Article