Reversible Redox Probes to Determine Band‐Edge Locations and Dopant Concentrations of Nano‐TiO2 Thin‐Films: Settling the Mott‐Schottky Conundrum DOI
Divyansh Anil Khurana, Nina Plankensteiner, Bart Vermang

и другие.

Angewandte Chemie International Edition, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 6, 2024

Abstract Knowing the exact location of semiconductor band‐edges is key for mechanistic insights into their use water and CO 2 photo/electrocatalysis. In this regard, a reliable strategy nano‐semiconductors did not exist yet. We demonstrate reversible redox probes on nano‐semiconductor electrodes to determine band‐edge locations in aqueous solutions. Rectifying current‐potential (i‐U) characteristics with high work function (i.e. more positive formal potential) Fe(CN) 6 3− /Fe(CN) 4− couple yielded flatband potential at various pH whereas i‐U low negative Ru(NH 3 ) 3+ /Ru(NH 2+ provided conduction dopant concentration 30 nm thin‐film n‐TiO . The methodology can be extended other serves as an alternative goes beyond capabilities Mott‐Schottky procedure bulk electrodes.

Язык: Английский

In-situ preparation of II & S-type hybrid heterojunction Ag2MoO4/AgCl/SiC photocatalyst from waste photovoltaic silicon for cefaclor and pharmaceutical wastewater degradation DOI
Yunyan Chen, Chengyao Teng, Zhijie Tang

и другие.

Separation and Purification Technology, Год журнала: 2025, Номер 361, С. 131465 - 131465

Опубликована: Янв. 9, 2025

Язык: Английский

Процитировано

0
Reversible Redox Probes to Determine Band‐Edge Locations and Dopant Concentrations of Nano‐TiO2 Thin‐Films: Settling the Mott‐Schottky Conundrum DOI
Divyansh Anil Khurana, Nina Plankensteiner, Bart Vermang

и другие.

Angewandte Chemie, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 6, 2024

Abstract Knowing the exact location of semiconductor band‐edges is key for mechanistic insights into their use water and CO 2 photo/electrocatalysis. In this regard, a reliable strategy nano‐semiconductors did not exist yet. We demonstrate reversible redox probes on nano‐semiconductor electrodes to determine band‐edge locations in aqueous solutions. Rectifying current‐potential (i‐U) characteristics with high work function (i.e. more positive formal potential) Fe(CN) 6 3− /Fe(CN) 4− couple yielded flatband potential at various pH whereas i‐U low negative Ru(NH 3 ) 3+ /Ru(NH 2+ provided conduction dopant concentration 30 nm thin‐film n‐TiO . The methodology can be extended other serves as an alternative goes beyond capabilities Mott‐Schottky procedure bulk electrodes.

Язык: Английский

Процитировано

0
Reversible Redox Probes to Determine Band‐Edge Locations and Dopant Concentrations of Nano‐TiO2 Thin‐Films: Settling the Mott‐Schottky Conundrum DOI
Divyansh Anil Khurana, Nina Plankensteiner, Bart Vermang

и другие.

Angewandte Chemie International Edition, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 6, 2024

Abstract Knowing the exact location of semiconductor band‐edges is key for mechanistic insights into their use water and CO 2 photo/electrocatalysis. In this regard, a reliable strategy nano‐semiconductors did not exist yet. We demonstrate reversible redox probes on nano‐semiconductor electrodes to determine band‐edge locations in aqueous solutions. Rectifying current‐potential (i‐U) characteristics with high work function (i.e. more positive formal potential) Fe(CN) 6 3− /Fe(CN) 4− couple yielded flatband potential at various pH whereas i‐U low negative Ru(NH 3 ) 3+ /Ru(NH 2+ provided conduction dopant concentration 30 nm thin‐film n‐TiO . The methodology can be extended other serves as an alternative goes beyond capabilities Mott‐Schottky procedure bulk electrodes.

Язык: Английский

Процитировано

0