Unraveling the Surface Reactivity of Pristine and Ti-Doped Hematite with Water

被引：5

作者：

Deleuze, Pierre-Marie ^{[1
]}

Magnan, Helene ^{[2
]}

Barbier, Antoine ^{[2
]}

Silly, Mathieu ^{[3
]}

Domenichini, Bruno ^{[1
]}

Dupont, Celine ^{[1
]}

机构：

[1] Univ Bourgogne Franche Comte, Lab Interdisciplinaire Carnot Bourgogne ICB, UMR 6303 CNRS, F-21078 Dijon, France

[2] Univ Paris Saclay, CEA, CNRS, Serv Phys Etat Condense SPEC, F-91191 Gif Sur Yvette, France

[3] Synchrotron SOLEIL, F-91192 St Aubin, France

来源：

JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2021年 / 12卷 / 47期

关键词：

TOTAL-ENERGY CALCULATIONS; OXIDATION; ALPHA-FE2O3(0001); PHOTOOXIDATION; PHOTOANODES; ADSORPTION; STABILITY; LAYER; FILMS; OXIDE;

D O I：

10.1021/acs.jpclett.1c03029

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Water adsorption and dissociation on undoped and Ti-doped hematite thin films were investigated using near-ambient pressure photoemission and DFT calculations. A fine understanding of doping effects is of prime importance in the framework of photoanode efficiency in aqueous conditions. By comparison to pure Fe2O3 surface, the Ti(2%)-Fe2O3 surface shows a lower hydroxylation level. We demonstrate that titanium induces wide structural modifications of the surface, preventing it from reaching full hydroxylation.

引用

页码：11520 / 11527

页数：8

共 50 条

[21] Ti-doped hematite films coupled with ultrathin nickel-borate layer as photoanode for enhanced photoelectrochemical water oxidation
Liu, Changhai
Zhang, Tingting
Zhao, Dengxiaojiang
Zhang, Chao
Ou, Guofu
Jin, Haozhe
Chen, Zhidong
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2021, 32 (06) : 7061 - 7072
[22] Ti-doped hematite photoanode prepared by spray pyrolysis method with enhanced photoelectrochemical performance
Lian, Xiaojuan
Cheng, Jiang
Yu, Junsheng
Li, Lu
Yang, Xin
8TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: OPTOELECTRONIC MATERIALS AND DEVICES, 2016, 9686
[23] Ti-doped hematite films coupled with ultrathin nickel-borate layer as photoanode for enhanced photoelectrochemical water oxidation
Changhai Liu
Tingting Zhang
Dengxiaojiang Zhao
Chao Zhang
Guofu Ou
Haozhe Jin
Zhidong Chen
Journal of Materials Science: Materials in Electronics, 2021, 32 : 7061 - 7072
[24] Local electronic structure and photoelectrochemical activity of partial chemically etched Ti-doped hematite
Rioult, Maxime
Belkhou, Rachid
Magnan, Helene
Stanescu, Dana
Stanescu, Stefan
Maccherozzi, Francesco
Rountree, Cindy
Barbier, Antoine
SURFACE SCIENCE, 2015, 641 : 310 - 313
[25] Enhanced photoelectrochemical water splitting via SILAR-deposited Ti-doped hematite thin films with an FeOOH overlayer
Abel, Anthony J.
Patel, Anjli M.
Smolin, Sergey Y.
Opasanont, Borirak
Baxter, Jason B.
JOURNAL OF MATERIALS CHEMISTRY A, 2016, 4 (17) : 6495 - 6504
[26] Electrodeposited Ti-doped hematite photoanodes and their employment for photoelectrocatalytic hydrogen production in the presence of ethanol
Kalamaras, Evangelos
Dracopoulos, Vasilios
Sygellou, Lamprini
Lianos, Panagiotis
Chemical Engineering Journal, 2016, 295 : 288 - 294
[27] Modification of Ti-doped hematite nanowires with a NiOx buffer layer for improved photoelectrochemical performance
Chen, Yubin
Lv, Fei
Xia, Hongyu
Xu, Xiaoya
Su, Jinzhan
Shen, Shaohua
APPLIED PHYSICS LETTERS, 2021, 119 (08)
[28] Electrodeposited Ti-doped hematite photoanodes and their employment for photoelectrocatalytic hydrogen production in the presence of ethanol
Kalamaras, Evangelos
Dracopoulos, Vasilios
Sygellou, Lamprini
Lianos, Panagiotis
CHEMICAL ENGINEERING JOURNAL, 2016, 295 : 288 - 294
[29] Tuning of oxygen vacancy-induced electrical conductivity in Ti-doped hematite films and its impact on photoelectrochemical water splitting
Pranab Biswas
Ardak Ainabayev
Ainur Zhussupbekova
Feljin Jose
Robert O’Connor
Aitkazy Kaisha
Brian Walls
Igor V. Shvets
Scientific Reports, 10
[30] Tuning of oxygen vacancy-induced electrical conductivity in Ti-doped hematite films and its impact on photoelectrochemical water splitting
Biswas, Pranab
Ainabayev, Ardak
Zhussupbekova, Ainur
Jose, Feljin
O'Connor, Robert
Kaisha, Aitkazy
Walls, Brian
Shvets, Igor, V
SCIENTIFIC REPORTS, 2020, 10 (01)

← 1 2 3 4 5 →