Electron transfer in heterojunction catalysts

Abstract

Heterojunction catalysis, the cornerstone of the modern chemical industry, shows potentials to tackle the growing energy and environmental crises. Electron transfer (ET) is ubiquitous in heterojunction catalysts, and it holds...

Do potential dependent kinetics play a role in photocatalytic rate trends?

“…2c). However, extreme changes in doping or biasing outside the saturation (14). The illumination at 3 Suns provides a maximum differential capacitance peak of 400 μF cm −2 for the numerical model employed.…”

“…2c. Thus, it is argued that the illumination intensities typically applied in photocatalysis, [10][11][12][13][14][15]21,34 often give or take ∼1 Sun, can drive the formation of sufficiently high hole concentrations that may give rise to a sharp interfacial potential drop when the equilibrium hole reaction rate (k p0 ) is sluggish. This emergent interfacial potential drop V int is then argued to drive Tafel kinetics.…”

“…We also explore how the emergence of a Tafel contribution can also be made apparent through capacitive data derived from impedance measurements. 14,[21][22][23] Finally, we discuss need for more detailed temperature dependent measurements (focusing extracting kinetic properties) to better reveal the potentially multifaceted origins of such higher order phenomena. [10][11][12][13][14][15] 2 Theory & methodology…”

“…14,[21][22][23] Finally, we discuss need for more detailed temperature dependent measurements (focusing extracting kinetic properties) to better reveal the potentially multifaceted origins of such higher order phenomena. [10][11][12][13][14][15] 2 Theory & methodology…”

First-principles studies on the electronic and photocatalytic water splitting properties of surface functionalized Y2C-based MXenes

“…Recently, lots of 2D Janus materials have been predicted to possess high photocatalytic efficiency for water splitting. 29,[39][40][41][42][43] For example, Fu et al theoretically investigated the characteristics of 2D M 2 X 3 (M = Al, Ga, In; X = S, Se, Te) for photocatalytic water splitting. 29 All the studied systems are promising photocatalysts for photocatalytic water splitting and moreover, the calculated STH efficiencies of Al 2 Te 3 , Ga 2 Se 3 , Ga 2 Te 3 (with 3% strain), In 2 Se 3 , and In 2 Te 3 are lager than 18%.…”