Induction of Concerted Proton-Coupled Electron Transfer during Oxygen Evolution on Hematite Using Lanthanum Oxide as a Solid Proton Acceptor

被引：41
作者：
Takashima, Toshihiro [1 ,2 ]
Ishikawa, Koki [2 ]
Irie, Hiroshi [1 ,2 ]
机构：
[1] Univ Yamanashi, Clean Energy Res Ctr, 4-3-11 Takeda, Kofu, Yamanashi 4008511, Japan
[2] Univ Yamanashi, Interdisciplinary Grad Sch Med & Engn, Special Doctoral Program Green Energy Convers Sci, 4-3-11 Takeda, Kofu, Yamanashi 4008511, Japan
来源：
ACS CATALYSIS | 2019年 / 9卷 / 10期
关键词：
oxygen evolution; proton-coupled electron transfer; electrocatalysis; hematite; neutral pH; WATER OXIDATION; ELECTROCATALYST; STABILITY; EFFICIENT; NANOPARTICLES; OER;
D O I：
10.1021/acscatal.9b02936
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：
The utilization of a support material has been an effective method for the management of proton transfer on catalytic active centers. Previous studies showed that the large overpotential of alpha-Fe2O3 for the oxygen evolution reaction (OER) resulted from the sequential transfer of electrons and protons. Here, by combining alpha-Fe2O3 with La2O3, which functions as a solid proton acceptor, concerted proton electron transfer (CPET) was induced. The induction of CPET facilitated the formation of intermediate species, leading to the OER activity enhancement at neutral pH. This work may provide useful insight for the design of promising OER catalysts, which is pivotal for energy conversion.
引用
收藏
页码：9212 / 9215
页数：7
相关论文
共 36 条
[1]   Tailoring the Catalytic Properties of Metal Nanoparticles via Support Interactions [J].
Ahmadi, M. ;
Mistry, H. ;
Roldan Cuenya, B. .
JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2016, 7 (17) :3519-3533
[2]   Interactions of [BMIM][BF4] with Metal Oxides and Their Consequences on Stability Limits [J].
Babucci, Melike ;
Balci, Volkan ;
Akcay, Ash ;
Uzun, Alper .
JOURNAL OF PHYSICAL CHEMISTRY C, 2016, 120 (36) :20089-20102
[3]   Dynamics of photogenerated holes in surface modified α-Fe2O3 photoanodes for solar water splitting [J].
Barroso, Monica ;
Mesa, Camilo A. ;
Pendlebury, Stephanie R. ;
Cowan, Alexander J. ;
Hisatomi, Takashi ;
Sivula, Kevin ;
Graetzel, Michael ;
Klug, David R. ;
Durrant, James R. .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2012, 109 (39) :15640-15645
[4]   CoFe Layered Double Hydroxide Supported on Graphitic Carbon Nitrides: An Efficient and Durable Bifunctional Electrocatalyst for Oxygen Evolution and Hydrogen Evolution Reactions [J].
Bhowmik, Tanmay ;
Kundu, Manas Kumar ;
Barman, Sudip .
ACS APPLIED ENERGY MATERIALS, 2018, 1 (03) :1200-+
[5]   Ferryl Protonation in Oxoiron(IV) Porphyrins and Its Role in Oxygen Transfer [J].
Boaz, Nicholas C. ;
Bell, Seth R. ;
Groves, John T. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2015, 137 (08) :2875-2885
[6]   Effect of surface site interactions on potentiometric titration of hematite (α-Fe2O3) crystal faces [J].
Chatman, Shawn ;
Zarzycki, P. ;
Preoanin, T. ;
Rosso, K. M. .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2013, 391 :125-134
[7]   Update 1 of: Electrochemical Approach to the Mechanistic Study of Proton-Coupled Electron Transfer [J].
Costentin, Cyrille ;
Robert, Marc ;
Saveant, Jean-Michel .
CHEMICAL REVIEWS, 2010, 110 (12) :PR1-PR40
[8]   A Continuum of Proton-Coupled Electron Transfer Reactivity [J].
Darcy, Julia W. ;
Koronkiewicz, Brian ;
Parada, Giovanny A. ;
Mayer, James M. .
ACCOUNTS OF CHEMICAL RESEARCH, 2018, 51 (10) :2391-2399
[9]   pH dependence of OER activity of oxides: Current and future perspectives [J].
Giordano, Livia ;
Han, Binghong ;
Risch, Marcel ;
Hong, Wesley T. ;
Rao, Reshma R. ;
Stoerzinger, Kelsey A. ;
Shao-Horn, Yang .
CATALYSIS TODAY, 2016, 262 :2-10
[10]   An Advanced Ni-Fe Layered Double Hydroxide Electrocatalyst for Water Oxidation [J].
Gong, Ming ;
Li, Yanguang ;
Wang, Hailiang ;
Liang, Yongye ;
Wu, Justin Z. ;
Zhou, Jigang ;
Wang, Jian ;
Regier, Tom ;
Wei, Fei ;
Dai, Hongjie .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2013, 135 (23) :8452-8455
1234