The Role of Surface States on Reduced TiO2@BiVO4 Photoanodes: Enhanced Water Oxidation Performance through Improved Charge Transfer

ACS Catalysis ◽  
2021 ◽  
pp. 7637-7646
Author(s):  
Hang Chen ◽  
Jingguo Li ◽  
Wooseok Yang ◽  
S. Esmael Balaghi ◽  
C. A. Triana ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Water Oxidation ◽  
Surface States ◽  
Oxidation Performance

Boosting water oxidation on metal-free carbon nanotubes via directional interfacial charge-transfer induced by an adsorbed polyelectrolyte

2018 ◽  
Vol 11 (12) ◽  
pp. 3334-3341 ◽  
Author(s):  
Chunshao Mo ◽  
Junhua Jian ◽  
Jing Li ◽  
Zhengsong Fang ◽  
Zhe Zhao ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Charge Transfer ◽  
Water Oxidation ◽  
Free Carbon ◽  
Interfacial Charge Transfer ◽  
Metal Free ◽  
Pure Carbon ◽  
Oxidation Performance ◽  
Interfacial Charge

Directional interfacial charge transfer doping was used to significantly boost the water oxidation performance of pure carbon nanotubes.

Influence of Electron-withdrawing Substituents on Photoelectrochemical Surface Phenomena at Phthalocyanine Thin Film Electrodes

1999 ◽  
Vol 03 (06) ◽  
pp. 444-452 ◽  
Author(s):  
TORSTEN OEKERMANN ◽  
DERCK SCHLETTWEIN ◽  
NILS I. JAEGER ◽  
DIETER WÖHRLE
Keyword(s):  
Charge Transfer ◽  
Steady State ◽  
Electrolyte Concentration ◽  
Surface States ◽  
Surface Phenomena ◽  
Time Resolved ◽  
Photogenerated Electrons ◽  
Millisecond Range ◽  
Electron Withdrawing Substituents

The influence of electron-withdrawing substituents on the photoelectrochemical properties of phthalocyanines is shown in a comparison between hexadecafluorophthalocyaninatozinc(II) ( F 16 PcZn ) and the unsubstituted phthalocyaninatozinc(II) ( PcZn ). The role of surface states in the photoelectrochemistry of both materials has been investigated by time-resolved photocurrent measurements in the millisecond range. The charging and discharging of surface states could clearly be seen as spikes at the beginning and the end of illumination. Surface states were filled with photogenerated electrons at PcZn and with photogenerated holes at F 16 PcZn . In the steady state under illumination only cathodic photocurrents were detected at PcZn , while at F 16 PcZn both cathodic and anodic photocurrents were observed. An adsorption step of electroactive species prior to the charge transfer was derived from the dependence of the steady state photocurrents on the electrolyte concentration for both materials. The concentration dependence of the charging and discharging currents, however, showed that charge transfer from surface states to the electrolyte occurs at PcZn , while at F 16 PcZn the surface states only represent recombination centres.

Enhanced photoelectrochemical water oxidation performance by altering the interfacial charge transfer path

2017 ◽  
Vol 4 (8) ◽  
pp. 1296-1303 ◽  
Author(s):  
Dandan Xu ◽  
Qijing Bu ◽  
Dejun Wang ◽  
Tengfeng Xie
Keyword(s):  
Charge Transfer ◽  
Water Oxidation ◽  
Interfacial Charge Transfer ◽  
Transfer Path ◽  
Oxidation Performance ◽  
Interfacial Charge ◽  
Photoelectrochemical Water Oxidation

The charge transfer between a semiconductor and cocatalyst is a crucial process for improving the water oxidation performance.

Enhanced photoelectrochemical water oxidation performance of a hematite photoanode by decorating with Au–Pt core–shell nanoparticles

2017 ◽  
Vol 46 (46) ◽  
pp. 16050-16057 ◽  
Author(s):  
Biyi Chen ◽  
Weiqiang Fan ◽  
Baodong Mao ◽  
Hao Shen ◽  
Weidong Shi
Keyword(s):  
Charge Transfer ◽  
Transfer Process ◽  
Water Oxidation ◽  
Core Shell ◽  
Charge Transfer Process ◽  
Shell Nanoparticles ◽  
Oxidation Performance ◽  
Core Shell Nanoparticles ◽  
Photoelectrochemical Water Oxidation

The charge transfer process of the AuPt/α-Fe2O3 composite photoanode for photoelectrochemical water oxidation.

Unveiling the role of tetragonal BiVO4 as a mediator for dual phase BiVO4/g-C3N4 composite photocatalysts enabling highly efficient water oxidation via Z-scheme charge transfer

2019 ◽  
Vol 7 (46) ◽  
pp. 26279-26284 ◽  
Author(s):  
Hyung Jun Kong ◽  
Keon-Han Kim ◽  
Sangjun Kim ◽  
Heebin Lee ◽  
Jeung Ku Kang
Keyword(s):  
Charge Transfer ◽  
Charge Carrier ◽  
Water Oxidation ◽  
Carrier Lifetime ◽  
Dual Phase ◽  
Electron Mediator ◽  
Composite Photocatalysts ◽  
Zircon Type ◽  
Charge Carrier Lifetime

We present the dual phase photocatalysts enabling 3-fold longer charge carrier lifetime and 3-fold enhanced photocatalytic water oxidation by integrating a tetragonal zircon-type BiVO4 as an electron mediator for Z-scheme charge transfer.

Many-electron theory of resonant charge transfer: Role of surface states in He andHe+scattering off Si(100)

1992 ◽  
Vol 45 (23) ◽  
pp. 13407-13416 ◽  
Author(s):  
B. L. Burrows ◽  
A. T. Amos ◽  
S. G. Davison ◽  
K. W. Sulston
Keyword(s):  
Charge Transfer ◽  
Surface States ◽  
Electron Theory ◽  
Resonant Charge Transfer

scholarly journals Water Oxidation at Hematite Photoelectrodes: The Role of Surface States

2012 ◽  
Vol 134 (9) ◽  
pp. 4294-4302 ◽  
Author(s):  
Benjamin Klahr ◽  
Sixto Gimenez ◽  
Francisco Fabregat-Santiago ◽  
Thomas Hamann ◽  
Juan Bisquert
Keyword(s):  
Water Oxidation ◽  
Surface States

scholarly journals Role of topological surface states and mirror symmetry in topological crystalline insulator SnTe as an efficient electrocatalyst

Nanoscale ◽  
2021 ◽  
Author(s):  
Qing Qu ◽  
Bin Liu ◽  
Hongtao Liu ◽  
Jing Liang ◽  
Jiannong Wang ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Mirror Symmetry ◽  
Surface States ◽  
Topological Surface ◽  
Topological Crystalline Insulator

The intrinsic activities of SnTe (001) and (111) surfaces with robust topological surface states (TSSs) are superior to that of a (211) surface with fragile or without TSSs, attributing to the enhanced charge transfer between H atoms and TSSs.

scholarly journals Electrochemical oxidation of boron-doped nickel–iron layered double hydroxide for facile charge transfer in oxygen evolution electrocatalysts

RSC Advances ◽  
2021 ◽  
Vol 11 (14) ◽  
pp. 8198-8206
Author(s):  
In-Kyoung Ahn ◽  
So-Yeon Lee ◽  
Hyoung Gyun Kim ◽  
Gi-Baek Lee ◽  
Ji-Hoon Lee ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Electrochemical Oxidation ◽  
Oxygen Evolution ◽  
Layered Double Hydroxide ◽  
Water Oxidation ◽  
Nickel Iron ◽  
Boron Doped ◽  
Oxidation Performance ◽  
Double Hydroxide

An electrochemically oxidized boron-doped NiFe LDH electrocatalyst was prepared and the electrocatalyst showed improved water oxidation performance.

Charge Transfer across a ZnO∕Electrolyte Interface Induced by Sub-Bandgap Illumination: Role of the Surface States

2008 ◽  
Vol 155 (7) ◽  
pp. H529 ◽  
Author(s):  
Liudmila Larina ◽  
Edward M. Trukhan ◽  
Oleg Shevaleevskiy ◽  
Byung Tae Ahn
Keyword(s):  
Charge Transfer ◽  
Surface States ◽  
Electrolyte Interface
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