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E W, Yi W, Ding H, Zhu J, Rosei F, Yang X, Yu M. Achieving metal-like catalysis from semiconductor for on-surface synthesis. Proc Natl Acad Sci U S A 2024; 121:e2408919121. [PMID: 39240967 PMCID: PMC11406267 DOI: 10.1073/pnas.2408919121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2024] [Accepted: 08/01/2024] [Indexed: 09/08/2024] Open
Abstract
Free of posttransfer, on-surface synthesis (OSS) of single-atomic-layer nanostructures directly on semiconductors holds considerable potential for next-generation devices. However, due to the high diffusion barrier and abundant defects on semiconductor surfaces, extended and well-defined OSS on semiconductors has major difficulty. Furthermore, given semiconductors' limited thermal catalytic activity, initiating high-barrier reactions remains a significant challenge. Herein, using TiO2(011) as a prototype, we present an effective strategy for steering the molecule adsorption and reaction processes on semiconductors, delivering lengthy graphene nanoribbons with extendable widths. By introducing interstitial titanium (Tiint) and oxygen vacancies (Ov), we convert TiO2(011) from a passive supporting template into a metal-like catalytic platform. This regulation shifts electron density and surface dipoles, resulting in tunable catalytic activity together with varied molecule adsorption and diffusion. Cyclodehydrogenation, which is inefficient on pristine TiO2(011), is markedly improved on Tiint/Ov-doped TiO2. Even interribbon cyclodehydrogenation is achieved. The final product's dimensions, quality, and coverage are all controllable. Tiint doping outperforms Ov in producing regular and prolonged products, whereas excessive Tiint compromises molecule landing and coupling. This work demonstrates the crucial role of semiconductor substrates in OSS and advances OSS on semiconductors from an empirical trial-and-error methodology to a systematic and controllable paradigm.
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Affiliation(s)
- Wenlong E
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wei Yi
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Honghe Ding
- National Synchrotron Radiation Laboratory and Department of Chemical Physics, University of Science and Technology of China, Hefei 230029, China
| | - Junfa Zhu
- National Synchrotron Radiation Laboratory and Department of Chemical Physics, University of Science and Technology of China, Hefei 230029, China
| | - Federico Rosei
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Trieste 34127, Italy
| | - Xueming Yang
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- Department of Chemistry and Guangdong Provincial Key Laboratory of Catalytic Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Miao Yu
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
- School of Materials and Energy, University of Electronic Science and Technology, Chengdu 610000, China
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2
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Yang H, Zou W, Zhang C, Du A. Ab Initio Studies of Electrocatalytic CO 2 Reduction for Small Cu Cluster Supported on Polar Substrates. ACS APPLIED MATERIALS & INTERFACES 2024; 16:33688-33695. [PMID: 38900983 DOI: 10.1021/acsami.4c07445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/22/2024]
Abstract
Small Cu clusters are excellent candidates for the electrocatalytic reduction of carbon dioxide (CO2RR), and their catalytic performance is expected to be significantly influenced by the interaction between the substrate and cluster. In this study, we systematically investigate the CO2RR for a Cu3 cluster anchored on Janus MoSX (X = Se, Te) substrates using density functional theory calculations. These substrates feature a broken vertical mirror symmetry, which generates spontaneous out-of-plane polarization and offers two distinct polar surfaces to support the Cu3 cluster. Our findings reveal that the CO2RR performance on the Cu3 cluster is strongly influenced by the polarization direction and strength of the MoSX (X = Se, Te) substrates. Notably, the Cu3 cluster supported on the S-terminated MoSTe surface (Cu3(S)@MoSTe) demonstrates the highest CO2RR activity, producing methane. These results underscore the pivotal role of substrate polarization in modulating the binding strength of reactants and reaction intermediates, thereby enhancing the CO2RR efficiency.
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Affiliation(s)
- Huiru Yang
- School of Physics, Northwest University, Xi'an 710127, China
| | - Wenli Zou
- School of Physics, Northwest University, Xi'an 710127, China
| | - Chunmei Zhang
- School of Physics, Northwest University, Xi'an 710127, China
| | - Aijun Du
- School of Chemistry and Physics and QUT Centre for Materials Science, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
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3
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Cheng C, Zhou Z, Long R. Time-Domain View of Polaron Dynamics in Metal Oxide Photocatalysts. J Phys Chem Lett 2023:10988-10998. [PMID: 38039093 DOI: 10.1021/acs.jpclett.3c02869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2023]
Abstract
The polaron is a fundamental physical phenomenon in transition metal oxides (TMOs), and it has been studied extensively for decades. However, the implication of a polaron on photochemistry is still ambiguous. As such, understanding the fundamental properties and controlling the dynamics of polarons at the atomistic level is desired. In this Perspective, we seek to highlight the recent advances in studying small polarons in TMOs, with a particular focus on nonadiabatic molecular dynamics at the ab initio level, and discuss the implications for photocatalysis from the aspects of the structure, intrinsic physical properties, formation, migration, and recombination of small polarons. Finally, various methods were proposed to advance our understanding of manipulating the small-polaron dynamics, and strategies to design high-performance TMO-based photoelectrodes were discussed.
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Affiliation(s)
- Cheng Cheng
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education, Beijing Normal University, Beijing 100875, P. R. China
- Center for Advanced Materials Research & College of Arts and Sciences, Beijing Normal University, Zhuhai 519087, P. R. China
| | - Zhaohui Zhou
- Chemical Engineering and Technology, School of Water and Environment, Chang'an University, Xi'an 710064, P. R. China
| | - Run Long
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education, Beijing Normal University, Beijing 100875, P. R. China
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4
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Man P, Huang L, Zhao J, Ly TH. Ferroic Phases in Two-Dimensional Materials. Chem Rev 2023; 123:10990-11046. [PMID: 37672768 DOI: 10.1021/acs.chemrev.3c00170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/08/2023]
Abstract
Two-dimensional (2D) ferroics, namely ferroelectric, ferromagnetic, and ferroelastic materials, are attracting rising interest due to their fascinating physical properties and promising functional applications. A variety of 2D ferroic phases, as well as 2D multiferroics and the novel 2D ferrovalleytronics/ferrotoroidics, have been recently predicted by theory, even down to the single atomic layers. Meanwhile, some of them have already been experimentally verified. In addition to the intrinsic 2D ferroics, appropriate stacking, doping, and defects can also artificially regulate the ferroic phases of 2D materials. Correspondingly, ferroic ordering in 2D materials exhibits enormous potential for future high density memory devices, energy conversion devices, and sensing devices, among other applications. In this paper, the recent research progresses on 2D ferroic phases are comprehensively reviewed, with emphasis on chemistry and structural origin of the ferroic properties. In addition, the promising applications of the 2D ferroics for information storage, optoelectronics, and sensing are also briefly discussed. Finally, we envisioned a few possible pathways for the future 2D ferroics research and development. This comprehensive overview on the 2D ferroic phases can provide an atlas for this field and facilitate further exploration of the intriguing new materials and physical phenomena, which will generate tremendous impact on future functional materials and devices.
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Affiliation(s)
- Ping Man
- Department of Chemistry and Center of Super-Diamond & Advanced Films (COSDAF), City University of Hong Kong, Kowloon, Hong Kong 999077, P. R. China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, P. R. China
| | - Lingli Huang
- Department of Chemistry and Center of Super-Diamond & Advanced Films (COSDAF), City University of Hong Kong, Kowloon, Hong Kong 999077, P. R. China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, P. R. China
| | - Jiong Zhao
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, Hong Kong 999077, P. R. China
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen 518057, P. R. China
| | - Thuc Hue Ly
- Department of Chemistry and Center of Super-Diamond & Advanced Films (COSDAF), City University of Hong Kong, Kowloon, Hong Kong 999077, P. R. China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, P. R. China
- Department of Chemistry and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong 999077, P. R. China
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5
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Karbalaei Akbari M, Verpoort F, Hu J, Zhuiykov S. Acoustic-Activated Se Crystalline Nanodomains at Atomically-Thin Liquid-Metal Piezoelectric Heterointerfaces for Synergistic CO 2 Conversion. ACS APPLIED MATERIALS & INTERFACES 2023; 15:39716-39731. [PMID: 37581366 DOI: 10.1021/acsami.3c07198] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
Acoustic-activated polarization at two-dimensional (2D) domains provide supplementary mechanisms for adjustment of empty and occupied orbitals at material heterointerfaces, activating a wide range of physicochemical applications. The piezoelectric nanodomains grown at 2D liquid-metal heterointerfaces represent a new class of polarization-dependent hybrid nanostructures with a highly challenging fabrication process. Here, the controlled growth of selenium-rich piezoelectric nanodomains on the nonpolar 2D surface of liquid Ga-based nanoparticles (NPs) enabled highly efficient and sustainable CO2 conversion. The Ga-based NPs were engulfed in carbon nanotube (CNT) frameworks. The initial hindrance effects of CNT frameworks suppressed the undesirable Ga-Se amalgamation to guarantee the suitable functions of piezocatalyst. Simultaneously, the CNT-Se mesoporous network enhances the transport and interaction of ionic species at heterointerfaces, providing unique selectivity features for CO2 conversion. Driven by acoustic energy, the multiple contributions of Ga-Se polarized heterointerfaces facilitated the piezoelectric switching and therefore increased the CO2 conversion efficiency to the value of 95.8%. The inherent compositional and functional tunability of the Ga-Se nanojunction reveal superior control over the catalyst heterointerfaces and thereby show promising potential for nanoscale applications.
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Affiliation(s)
- Mohammad Karbalaei Akbari
- Department of Solid State Sciences, Faculty of Science, Ghent University, 9000 Ghent, Belgium
- Centre for Environmental & Energy Research, Ghent University, Global Campus, 406-840 Incheon, South Korea
| | - Francis Verpoort
- Laboratory of Organometallics, Catalysis and Ordered Materials, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 430070 Wuhan, People's Republic of China
| | - Jie Hu
- Centre of Nano Energy and Devices, Taiyuan University of Technology, 030024 Taiyuan, People's Republic of China
| | - Serge Zhuiykov
- Department of Solid State Sciences, Faculty of Science, Ghent University, 9000 Ghent, Belgium
- Centre for Environmental & Energy Research, Ghent University, Global Campus, 406-840 Incheon, South Korea
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6
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Yang Y, Liu S, Fu G. Electrochemical Reduction of CO 2 via Single-Atom Catalysts Supported on α-In 2Se 3. J Phys Chem Lett 2023:6110-6118. [PMID: 37364177 DOI: 10.1021/acs.jpclett.3c01202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
In this work, the electrochemical CO2 reduction reaction (CO2RR) over transition metal and α-In2Se3 monolayer catalysts was investigated by density functional theory (DFT) and an effective screening medium method-reference interaction site model (ESM-RISM). On the basis of the scaling relationship between the adsorption free energies of intermediates, we constructed the relationships between oxygen-bound intermediates with *O and carbon-bound intermediates with *CHO. The calculation results indicate that *OCHO intermediates are more favorable for the first hydrogenation of CO2 on M@In2Se3 catalysts; thus, the adsorption energy of oxygen-bound species determines the catalytic performance of M@In2Se3. The Co@In2Se3↓-C was predicted to be the most promising catalyst with a low limiting potential of -0.385 V as determined by the computational hydrogen electrode method. Constant potential calculations also demonstrate that the M@In2Se3 catalysts hold great potential for highly efficient CO2RR. This work provides a fundamental understanding for the rational design of ferroelectric single-atom catalysts for the purpose of highly efficient electrocatalytic CO2 reduction.
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Affiliation(s)
- Yun Yang
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Shixi Liu
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. China
| | - Gang Fu
- College of Chemistry and Chemical Engineering, Department of Chemistry, Xiamen University, Xiamen 361005, P. R. China
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7
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Huang F, Li X, Zhang Y, Jie Y, Mu X, Yang C, Li W, Chen Y, Liu Y, Wang S, Ge B, Cao R, Ren X, Yan P, Li Q, Xu D, Jiao S. Surface Transformation Enables a Dendrite-Free Zinc-Metal Anode in Nonaqueous Electrolyte. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2203710. [PMID: 35785496 DOI: 10.1002/adma.202203710] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 06/25/2022] [Indexed: 06/15/2023]
Abstract
Significant challenges remain in developing rechargeable zinc batteries mainly because of reversibility problems on zinc-metal anodes. The dendritic growth and hydrogen evolution on zinc electrodes are major obstacles to overcome in developing practical and safe zinc batteries. Here, a dendrite-free and hydrogen-free Zn-metal anode with high Coulombic efficiency up to 99.6% over 300 cycles is realized in a newly designed nonaqueous electrolyte, which comprises an inexpensive zinc salt, zinc acetate, and a green low-cost solvent, dimethyl sulfoxide. Surface transformation on Cu substrate plays a critical role in facilitating the dendrite-free deposition process, which lowers the diffusion energy barrier of the Zn atoms, leading to a uniform and compact thin film for zinc plating. Furthermore, in situ electrochemical atomic force microscopy reveals the plating process via a layer-by-layer growth mechanism and the stripping process through an edge-dissolution mechanism. In addition, Zn||Mo6 S8 full cells exhibit excellent electrochemical performance in terms of cycling stability and rate capability. This work presents a new opportunity to develop nonaqueous rechargeable zinc batteries.
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Affiliation(s)
- Fanyang Huang
- Hefei National Laboratory for Physical Science at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Xinpeng Li
- Hefei National Laboratory for Physical Science at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Yuchen Zhang
- Hefei National Laboratory for Physical Science at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Yulin Jie
- Hefei National Laboratory for Physical Science at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Xulin Mu
- Department Beijing Key Laboratory of Microstructure and Properties of Solids, Institute of Microstructure and Properties of Advanced Materials, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, 100124, P. R. China
| | - Chaoran Yang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Physical Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Wanxia Li
- Hefei National Laboratory for Physical Science at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Yawei Chen
- Hefei National Laboratory for Physical Science at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Yang Liu
- Hefei National Laboratory for Physical Science at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Shuai Wang
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, P. R. China
| | - Binghui Ge
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, P. R. China
| | - Ruiguo Cao
- Hefei National Laboratory for Physical Science at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Xiaodi Ren
- Hefei National Laboratory for Physical Science at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Pengfei Yan
- Department Beijing Key Laboratory of Microstructure and Properties of Solids, Institute of Microstructure and Properties of Advanced Materials, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, 100124, P. R. China
| | - Qi Li
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Physical Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Dongsheng Xu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Physical Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Shuhong Jiao
- Hefei National Laboratory for Physical Science at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026, P. R. China
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8
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Spezzati C, Lan Z, Castelli IE. Dynamic Strain and Switchable Polarization: a Pathway to Enhance the Oxygen Evolution Reaction on InSnO2N. J Catal 2022. [DOI: 10.1016/j.jcat.2022.07.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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9
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Abbasi P, Barone MR, de la Paz Cruz-Jáuregui M, Valdespino-Padilla D, Paik H, Kim T, Kornblum L, Schlom DG, Pascal TA, Fenning DP. Ferroelectric Modulation of Surface Electronic States in BaTiO 3 for Enhanced Hydrogen Evolution Activity. NANO LETTERS 2022; 22:4276-4284. [PMID: 35500055 DOI: 10.1021/acs.nanolett.2c00047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Ferroelectric nanomaterials offer the promise of switchable electronic properties at the surface, with implications for photo- and electrocatalysis. Studies to date on the effect of ferroelectric surfaces in electrocatalysis have been primarily limited to nanoparticle systems where complex interfaces arise. Here, we use MBE-grown epitaxial BaTiO3 thin films with atomically sharp interfaces as model surfaces to demonstrate the effect of ferroelectric polarization on the electronic structure, intermediate binding energy, and electrochemical activity toward the hydrogen evolution reaction (HER). Surface spectroscopy and ab initio DFT+U calculations of the well-defined (001) surfaces indicate that an upward polarized surface reduces the work function relative to downward polarization and leads to a smaller HER barrier, in agreement with the higher activity observed experimentally. Employing ferroelectric polarization to create multiple adsorbate interactions over a single electrocatalytic surface, as demonstrated in this work, may offer new opportunities for nanoscale catalysis design beyond traditional descriptors.
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Affiliation(s)
- Pedram Abbasi
- Department of NanoEngineering, University of California San Diego, La Jolla, California 92093, United States
| | - Matthew R Barone
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Ma de la Paz Cruz-Jáuregui
- Centro de Nanociencias y Nanotecnología (CNyN)-Universidad Nacional Autónoma de México (UNAM) Km 107, Carretera Tijuana-Ensenada Ensenada B.C., C.P 22800, Mexico
| | - Duilio Valdespino-Padilla
- Centro de Nanociencias y Nanotecnología (CNyN)-Universidad Nacional Autónoma de México (UNAM) Km 107, Carretera Tijuana-Ensenada Ensenada B.C., C.P 22800, Mexico
- Universidad Autónoma de Baja California (UABC), Km 107, Carretera Tijuana-Ensenada Ensenada B.C., C.P 22800, Mexico
| | - Hanjong Paik
- Platform for the Accelerated Realization, Analysis & Discovery of Interface Materials (PARADIM), Cornell University, Ithaca, New York 14853, United States
| | - Taewoo Kim
- Chemical Engineering Program, Department of Nanoengineering, University of California San Diego, La Jolla, California 92093, United States
| | - Lior Kornblum
- Andrew & Erna Viterbi Department of Electrical & Computer Engineering, Technion─Israel Institute of Technology, Haifa 32000-03, Israel
- The Nancy & Stephen Grand Technion Energy Program, Technion─Israel Institute of Technology, Haifa 32000-03, Israel
| | - Darrell G Schlom
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, United States
- Kavli Institute at Cornell for Nanoscale Science, Ithaca, New York 14853, United States
- Leibniz-Institut für Kristallzüchtung, Max-Born-Straße 2, 12489 Berlin, Germany
| | - Tod A Pascal
- Department of NanoEngineering, University of California San Diego, La Jolla, California 92093, United States
| | - David P Fenning
- Department of NanoEngineering, University of California San Diego, La Jolla, California 92093, United States
- Chemical Engineering Program, Department of Nanoengineering, University of California San Diego, La Jolla, California 92093, United States
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10
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Yuan H, Zhang YW. Role of Ferroelectric In 2Se 3 in Polysulfide Shuttling and Charging/Discharging Kinetics in Lithium/Sodium-Sulfur Batteries. ACS APPLIED MATERIALS & INTERFACES 2022; 14:16178-16184. [PMID: 35369698 DOI: 10.1021/acsami.1c24801] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Lithium-sulfur (Li-S) and sodium-sulfur (Na-S) batteries, with the advantages of ultrahigh energy density, natural abundance, and ecofriendliness, are regarded as next-generation rechargeable batteries. However, polysulfide shuttling and sluggish charging/discharging kinetics in sulfur cathodes severely hamper their practical applications. In this study, via employing first-principles calculations, we investigate two-dimensional ferroelectric In2Se3 as a promising additive to overcome these obstacles. Our studies reveal the following findings: (1) the In2Se3 monolayer has a modest adsorption strength to soluble polysulfides, which not only eliminates the notorious shuttle effect but also prevents polysulfide dissolution; (2) In2Se3 is able to significantly reduce the free energy barriers of sulfur reduction reaction and the decomposition barriers of Li2S and Na2S, thus greatly enhancing the charging and discharging efficiency; and (3) due to the strong binding ability, the polarization downward (P↓) surface always outperforms the polarization upward (P↑) surface during charging/discharging processes, enabling the effective control of battery performance by ferroelectric switching. Given these advantages, it is expected that ferroelectric In2Se3 and similar ferroelectric additives will open a new route to enhance Li-S and Na-S battery performance.
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Affiliation(s)
- Hao Yuan
- Institute of High Performance Computing, A*STAR, Singapore 138632, Singapore
| | - Yong-Wei Zhang
- Institute of High Performance Computing, A*STAR, Singapore 138632, Singapore
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11
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Lan Z, Småbråten DR, Xiao C, Vegge T, Aschauer U, Castelli IE. Enhancing Oxygen Evolution Reaction Activity by Using Switchable Polarization in Ferroelectric InSnO 2N. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03737] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Zhenyun Lan
- Department of Energy Conversion and Storage, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark
| | - Didrik René Småbråten
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Bern CH-3012, Switzerland
| | - Chengcheng Xiao
- Departments of Materials and Physics, and the Thomas Young Centre for Theory and Simulation of Materials, Imperial College London, London SW7 2AZ, U.K
| | - Tejs Vegge
- Department of Energy Conversion and Storage, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark
| | - Ulrich Aschauer
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Bern CH-3012, Switzerland
| | - Ivano E. Castelli
- Department of Energy Conversion and Storage, Technical University of Denmark, Kgs. Lyngby DK-2800, Denmark
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12
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Ju L, Tan X, Mao X, Gu Y, Smith S, Du A, Chen Z, Chen C, Kou L. Controllable CO 2 electrocatalytic reduction via ferroelectric switching on single atom anchored In 2Se 3 monolayer. Nat Commun 2021; 12:5128. [PMID: 34446718 PMCID: PMC8390745 DOI: 10.1038/s41467-021-25426-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 08/09/2021] [Indexed: 11/09/2022] Open
Abstract
Efficient and selective CO2 electroreduction into chemical fuels promises to alleviate environmental pollution and energy crisis, but it relies on catalysts with controllable product selectivity and reaction path. Here, by means of first-principles calculations, we identify six ferroelectric catalysts comprising transition-metal atoms anchored on In2Se3 monolayer, whose catalytic performance can be controlled by ferroelectric switching based on adjusted d-band center and occupation of supported metal atoms. The polarization dependent activation allows effective control of the limiting potential of CO2 reduction on TM@In2Se3 (TM = Ni, Pd, Rh, Nb, and Re) as well as the reaction paths and final products on Nb@In2Se3 and Re@In2Se3. Interestingly, the ferroelectric switching can even reactivate the stuck catalytic CO2 reduction on Zr@In2Se3. The fairly low limiting potential and the unique ferroelectric controllable CO2 catalytic performance on atomically dispersed transition-metals on In2Se3 clearly distinguish them from traditional single atom catalysts, and open an avenue toward improving catalytic activity and selectivity for efficient and controllable electrochemical CO2 reduction reaction.
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Affiliation(s)
- Lin Ju
- School of Mechanical, Medical and Process Engineering Faculty, Queensland University of Technology, Brisbane, QLD, Australia.,School of Physics and Electric Engineering, Anyang Normal University, Anyang, China
| | - Xin Tan
- Integrated Materials Design Laboratory, Department of Applied Mathematics, Research School of Physics, The Australian National University, Canberra, Australian Captial Territory, Australia
| | - Xin Mao
- School of Chemistry and Physics, Queensland University of Technology, Brisbane, QLD, Australia
| | - Yuantong Gu
- School of Mechanical, Medical and Process Engineering Faculty, Queensland University of Technology, Brisbane, QLD, Australia.,Center for Materials Science, Queensland University of Technology, Brisbane, QLD, Australia.,Centre for Biomedical Technologies, Queensland University of Technology, Brisbane, QLD, Australia
| | - Sean Smith
- Integrated Materials Design Laboratory, Department of Applied Mathematics, Research School of Physics, The Australian National University, Canberra, Australian Captial Territory, Australia
| | - Aijun Du
- School of Chemistry and Physics, Queensland University of Technology, Brisbane, QLD, Australia.,Center for Materials Science, Queensland University of Technology, Brisbane, QLD, Australia
| | - Zhongfang Chen
- Department of Chemistry, University of Puerto Rico, Rio Piedras Campus, San Juan, PR, USA
| | - Changfeng Chen
- Department of Physics and Astronomy, University of Nevada, Las Vegas, NV, USA
| | - Liangzhi Kou
- School of Mechanical, Medical and Process Engineering Faculty, Queensland University of Technology, Brisbane, QLD, Australia. .,Center for Materials Science, Queensland University of Technology, Brisbane, QLD, Australia.
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13
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Wan TL, Ge L, Pan Y, Yuan Q, Liu L, Sarina S, Kou L. Catalysis based on ferroelectrics: controllable chemical reaction with boosted efficiency. NANOSCALE 2021; 13:7096-7107. [PMID: 33889916 DOI: 10.1039/d1nr00847a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Catalysts, which can accelerate chemical reactions, show promising potential to alleviate environmental pollution and the energy crisis. However, their wide application is severely limited by their low efficiency and poor selectivity due to the recombination of photogenerated electron-hole pairs, the back-reaction of interactants. Accordingly, ferroelectrics have emerged as promising catalysts to address these issues with the advantages of promoted light adsorption, boosted catalytic efficiency as a result of their intrinsic polarization, suppressed electron-hole pair recombination, and superior selectivity via the ferroelectric switch. This review summarizes the recent research progress of catalytic studies based on ferroelectric materials and highlights the controllability of catalytic activity by the ferroelectric switch. More importantly, we also comprehensively highlight the underlying working mechanism of ferroelectric-controlled catalysis to facilitate a deep understanding of this novel chemical reaction and guide future experiments. Finally, the perspectives of catalysis based on ferroelectrics and possible research opportunities are discussed. This review is expected to inspire wide research interests and push ferroelectric catalysis to practical applications.
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Affiliation(s)
- Tsz Lok Wan
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane, 4000, Australia.
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14
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Yu Z, Liu H, Zhu M, Li Y, Li W. Interfacial Charge Transport in 1D TiO 2 Based Photoelectrodes for Photoelectrochemical Water Splitting. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e1903378. [PMID: 31657147 DOI: 10.1002/smll.201903378] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 09/30/2019] [Indexed: 05/08/2023]
Abstract
1D nanostructured photoelectrodes are promising for application as photoelectrochemical (PEC) devices for solar energy conversion into hydrogen (H2 ) owing to the optical, structural, and electronic advantages. Titanium dioxide (TiO2 ) is the most investigated candidate as a photoelectrode due to its good photostability, low production cost, and eco-friendliness. The obstacle for TiO2 's practical application is the inherent wide bandgap (UV-lights response), poor conductivity, and limited hole diffusion length. Here, a comprehensive review of the current research efforts toward the development of 1D TiO2 based photoelectrodes for heterogeneous PEC water splitting is provided along with a discussion of nanoarchitectures and energy band engineering influences on interfacial charge transfer and separation of 1D TiO2 composited with different dimensional photoactive materials. The key focus of this review is to understand the charge transfer processes at interfaces and the relationship between photogenerated charge separation and photoelectrochemical performance. It is anticipated that this review will afford enriched information on the rational designs of nanoarchitectures, doping, and heterojunction interfaces for 1D TiO2 based photoelectrodes to achieve highly efficient solar energy conversion.
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Affiliation(s)
- Zhongrui Yu
- Institute of Materials, School of Materials Science and Engineering/Institute for Sustainable Energy, Shanghai University, Shanghai, 200444, China
| | - Haobo Liu
- Institute of Materials, School of Materials Science and Engineering/Institute for Sustainable Energy, Shanghai University, Shanghai, 200444, China
| | - Mingyuan Zhu
- Institute of Materials, School of Materials Science and Engineering/Institute for Sustainable Energy, Shanghai University, Shanghai, 200444, China
| | - Ying Li
- Institute of Materials, School of Materials Science and Engineering/Institute for Sustainable Energy, Shanghai University, Shanghai, 200444, China
| | - Wenxian Li
- Institute of Materials, School of Materials Science and Engineering/Institute for Sustainable Energy, Shanghai University, Shanghai, 200444, China
- Shanghai Key Laboratory of High Temperature Superconductors, Shanghai, 200444, China
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15
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Sun Y, Zeng K. Characterization of Catalysts by Advanced Scanning Probe Microscopy and Spectroscopy. ChemCatChem 2020. [DOI: 10.1002/cctc.201901877] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Yao Sun
- Department of Mechanical EngineeringNational University of Singapore 9 Engineering Drive 1 117576 Singapore Singapore
| | - Kaiyang Zeng
- Department of Mechanical EngineeringNational University of Singapore 9 Engineering Drive 1 117576 Singapore Singapore
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16
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Vonrüti N, Aschauer U. Catalysis on oxidized ferroelectric surfaces—Epitaxially strained LaTiO2N and BaTiO3 for photocatalytic water splitting. J Chem Phys 2020; 152:024701. [DOI: 10.1063/1.5135751] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Nathalie Vonrüti
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland
| | - Ulrich Aschauer
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland
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17
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Domingo N, Gaponenko I, Cordero-Edwards K, Stucki N, Pérez-Dieste V, Escudero C, Pach E, Verdaguer A, Paruch P. Surface charged species and electrochemistry of ferroelectric thin films. NANOSCALE 2019; 11:17920-17930. [PMID: 31553338 DOI: 10.1039/c9nr05526f] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The combination of scanning probe microscopy and ambient pressure X-ray photoelectron spectroscopy opens up new perspectives for the study of combined surface chemical, electrochemical and electromechanical properties at the nanoscale, providing both nanoscale resolution of physical information and the chemical sensitivity required to identify surface species and bulk ionic composition. In this work, we determine the nature and evolution over time of surface chemical species obtained after water-mediated redox reactions on Pb(Zr0.2,Ti0.8)O3 thin films with opposite as-grown polarization states. Starting with intrinsically different surface chemical composition on the oppositely polarized films (as a result of their ferroelectric-dominated interaction with environmental water), we identify the reversible and irreversible electrochemical reactions under an external electric field, distinguishing switching and charging events. We find that while reversible ionic displacements upon polarization switching dominate screening in the bulk of the sample, polarization dependent irreversible redox reactions determine surface chemical composition, which reveals itself as a characteristic fingerprint of the ferroelectric polarization switching history.
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Affiliation(s)
- Neus Domingo
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain.
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18
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Yu Y, Wang X. Piezotronics in Photo-Electrochemistry. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1800154. [PMID: 30009413 PMCID: PMC6197904 DOI: 10.1002/adma.201800154] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Revised: 03/30/2018] [Indexed: 05/29/2023]
Abstract
Photo-electrochemistry is the major trajectory for directly transforming solar energy into chemical compounds. The performance of a photo-electrochemical (PEC) system is directly related to the interfacial electrical band energy landscape. Recently, piezotronics has stood out as a promising strategy for tuning interfacial energetics. It applies intrinsic or deformation-induced ionic displacements (ferroelectric and piezoelectric polarizations) to engineer the interfacial charge distribution, and thereby the band structures of PEC electrodes. Here, contemporary research efforts of coupling piezotronics with photo-electrochemisty are reviewed. Quantitative band diagrams of a polarization-tuned semiconductor-electrolyte junction are first introduced, with an emphasis on the impact of interface chemistry. Experimental advances of employing piezoelectric and ferroelectric polarizations to enhance the charge separation and transportation, and surface kinetics of PEC water splitting are discussed. Finally, critical challenges of applying piezotronics in PEC systems and promising solutions are presented.
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Affiliation(s)
- Yanhao Yu
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Xudong Wang
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI, 53706, USA
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19
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Ferroelectric Materials: A Novel Pathway for Efficient Solar Water Splitting. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8091526] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Over the past few decades, solar water splitting has evolved into one of the most promising techniques for harvesting hydrogen using solar energy. Despite the high potential of this process for hydrogen production, many research groups have encountered significant challenges in the quest to achieve a high solar-to-hydrogen conversion efficiency. Recently, ferroelectric materials have attracted much attention as promising candidate materials for water splitting. These materials are among the best candidates for achieving water oxidation using solar energy. Moreover, their characteristics are changeable by atom substitute doping or the fabrication of a new complex structure. In this review, we describe solar water splitting technology via the solar-to-hydrogen conversion process. We will examine the challenges associated with this technology whereby ferroelectric materials are exploited to achieve a high solar-to-hydrogen conversion efficiency.
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20
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Wu F, Yu Y, Yang H, German LN, Li Z, Chen J, Yang W, Huang L, Shi W, Wang L, Wang X. Simultaneous Enhancement of Charge Separation and Hole Transportation in a TiO 2 -SrTiO 3 Core-Shell Nanowire Photoelectrochemical System. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1701432. [PMID: 28558165 DOI: 10.1002/adma.201701432] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 04/23/2017] [Indexed: 06/07/2023]
Abstract
Efficient charge separation and transportation are key factors that determine the photoelectrochemical (PEC) water-splitting efficiency. Here, a simultaneous enhancement of charge separation and hole transportation on the basis of ferroelectric polarization in TiO2 -SrTiO3 core-shell nanowires (NWs) is reported. The SrTiO3 shell with controllable thicknesses generates a considerable spontaneous polarization, which effectively tunes the electrical band bending of TiO2 . Combined with its intrinsically high charge mobility, the ferroelectric SrTiO3 thin shell significantly improves the charge-separation efficiency (ηseparation ) with minimized influence on the hole-migration property of TiO2 photoelectrodes, leading to a drastically increased photocurrent density ( Jph ). Specifically, the 10 nm-thick SrTiO3 shell yields the highest Jph and ηseparation of 1.43 mA cm-2 and 87.7% at 1.23 V versus reversible hydrogen electrode, respectively, corresponding to 83% and 79% improvements compared with those of pristine TiO2 NWs. The PEC performance can be further manipulated by thermal treatment, and the control of SrTiO3 film thicknesses and electric poling directions. This work suggests a material with combined ferroelectric and semiconducting features could be a promising solution for advancing PEC systems by concurrently promoting the charge-separation and hole-transportation properties.
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Affiliation(s)
- Fei Wu
- Department of Electronic Information Materials, School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, China
| | - Yanhao Yu
- Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Huang Yang
- Department of Electronic Information Materials, School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, China
| | - Lazarus N German
- Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Zhenquan Li
- Department of Electronic Information Materials, School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, China
| | - Jianguo Chen
- Department of Electronic Information Materials, School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, China
| | - Weiguang Yang
- Department of Electronic Information Materials, School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, China
| | - Lu Huang
- Department of Electronic Information Materials, School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, China
| | - Weimin Shi
- Department of Electronic Information Materials, School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, China
| | - Linjun Wang
- Department of Electronic Information Materials, School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, China
| | - Xudong Wang
- Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI, 53706, USA
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21
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Yang J, Youssef M, Yildiz B. Predicting point defect equilibria across oxide hetero-interfaces: model system of ZrO2/Cr2O3. Phys Chem Chem Phys 2017; 19:3869-3883. [DOI: 10.1039/c6cp04997d] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
We present a multi-scale model to predict defect redistribution both in interface core and space charge layer across oxide/oxide hetero-interfaces.
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Affiliation(s)
- Jing Yang
- Laboratory for Electrochemical Interfaces
- Massachusetts Institute of Technology
- Cambridge
- USA
- Department of Materials Science and Engineering
| | - Mostafa Youssef
- Laboratory for Electrochemical Interfaces
- Massachusetts Institute of Technology
- Cambridge
- USA
- Department of Materials Science and Engineering
| | - Bilge Yildiz
- Laboratory for Electrochemical Interfaces
- Massachusetts Institute of Technology
- Cambridge
- USA
- Department of Materials Science and Engineering
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22
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Iyer AA, Ertekin E. Asymmetric response of ferroelectric/metal oxide heterojunctions for catalysis arising from interfacial chemistry. Phys Chem Chem Phys 2017; 19:5870-5879. [DOI: 10.1039/c6cp06700j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The free energy profile of the oxygen evolution reaction on TiO2/BaTiO3 composites exhibits an asymmetric response to positive and negative polarizations, a result of the influence of interface chemistry.
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Affiliation(s)
- Ashwathi A. Iyer
- Department of Physics
- University of Illinois at Urbana-Champaign
- Urbana
- USA
| | - Elif Ertekin
- Department of Mechanical Science and Engineering
- University of Illinois at Urbana-Champaign
- Urbana
- USA
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23
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Alawode BO, Kolpak AM. PbTiO3(001) Capped with ZnO(112̅0): An ab Initio Study of Effect of Substrate Polarization on Interface Composition and CO2 Dissociation. J Phys Chem Lett 2016; 7:1310-1314. [PMID: 26996327 DOI: 10.1021/acs.jpclett.6b00305] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Catalytic conversion of CO2 into useful chemicals is an attractive alternative to expensive physical carbon sequestration methods. However, this approach is challenging because current chemical conversion methods employ high temperatures or pressures, thereby increasing cost and potentially leading to net carbon positive processes. In this paper, we examine the interface properties of ZnO(112̅0)/PbTiO3 and its surface interaction with CO2, CO and O. We show that the stoichiometry of the stable interface is dependent on the substrate polarization and can be controlled by changing the growth conditions. Using a model reaction, we demonstrate that a dynamically tuned catalysis scheme could enable significantly lower-energy approaches for CO2 conversion.
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Affiliation(s)
- Babatunde O Alawode
- Department of Mechanical Engineering, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139, United States
| | - Alexie M Kolpak
- Department of Mechanical Engineering, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139, United States
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24
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Guo H, Saidi WA, Yang J, Zhao J. Nano-scale polar-nonpolar oxide heterostructures for photocatalysis. NANOSCALE 2016; 8:6057-6063. [PMID: 26932200 DOI: 10.1039/c5nr08689b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We proposed based on first principles density functional theory calculations that a nano-scale thin film based on a polar-nonpolar transition-metal oxide heterostructure can be used as a highly-efficient photocatalyst. This is demonstrated using a SrTiO3/LaAlO3/SrTiO3 sandwich-like heterostructure with photocatalytic activity in the near-infrared region. The effect of the polar nature of LaAlO3 is two-fold. First, the induced electrostatic field accelerates the photo-generated electrons and holes into opposite directions and minimizes their recombination rates. Hence, the reduction and oxidation reactions can be instigated at the SrTiO3 surfaces located on the opposite sides of the heterostructure. Second, the electric field reduces the band gap of the system making it photoactive in the infrared region. We also show that charge separation can be enhanced by using compressive strain engineering that creates ferroelectric instability in STO. The proposed setup is ideal for tandem oxide photocatalysts especially when combined with photoactive polar materials.
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Affiliation(s)
- Hongli Guo
- ICQD/Hefei National Laboratory for Physical Sciences at Microscale, and Key Laboratory of Strongly-Coupled Quantum Matter Physics, Chinese Academy of Sciences, and Department of Physics, University of Science and Technology of China, Hefei, Anhui 230026, China and Synergetic Innovation Center of Quantum Information & Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Wissam A Saidi
- Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, USA
| | - Jinlong Yang
- ICQD/Hefei National Laboratory for Physical Sciences at Microscale, and Key Laboratory of Strongly-Coupled Quantum Matter Physics, Chinese Academy of Sciences, and Department of Physics, University of Science and Technology of China, Hefei, Anhui 230026, China and Synergetic Innovation Center of Quantum Information & Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jin Zhao
- ICQD/Hefei National Laboratory for Physical Sciences at Microscale, and Key Laboratory of Strongly-Coupled Quantum Matter Physics, Chinese Academy of Sciences, and Department of Physics, University of Science and Technology of China, Hefei, Anhui 230026, China and Synergetic Innovation Center of Quantum Information & Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China and Department of Physics, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, USA.
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25
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Kakekhani A, Ismail-Beigi S. Polarization-driven catalysis via ferroelectric oxide surfaces. Phys Chem Chem Phys 2016; 18:19676-95. [DOI: 10.1039/c6cp03170f] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Ferroelectric polarization can tune the surface chemistry: enhancing technologically important catalytic reactions such as NOx direct decomposition and SO2 oxidation.
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Affiliation(s)
- Arvin Kakekhani
- Department of Physics
- Yale University
- New Haven
- USA
- Center for Research on Interface Structure and Phenomena (CRISP)
| | - Sohrab Ismail-Beigi
- Department of Physics
- Yale University
- New Haven
- USA
- Center for Research on Interface Structure and Phenomena (CRISP)
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26
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Li YF, Liu ZP. Structure and water oxidation activity of 3dmetal oxides. WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2015. [DOI: 10.1002/wcms.1236] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ye-Fei Li
- Collaborative Innovation Center of Chemistry for Energy Material, Key Laboratory of Computational Physical Science (Ministry of Education), Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry; Fudan University; Shanghai China
| | - Zhi-Pan Liu
- Collaborative Innovation Center of Chemistry for Energy Material, Key Laboratory of Computational Physical Science (Ministry of Education), Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry; Fudan University; Shanghai China
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27
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Affiliation(s)
- Arvin Kakekhani
- Department of Physics, ‡Department of Applied Physics, §Department of Mechanical Engineering and Materials Science, ⊥Center for Research on Interface Structure and Phenomena (CRISP), Yale University, New Haven, Connecticut 06520, United States
| | - Sohrab Ismail-Beigi
- Department of Physics, ‡Department of Applied Physics, §Department of Mechanical Engineering and Materials Science, ⊥Center for Research on Interface Structure and Phenomena (CRISP), Yale University, New Haven, Connecticut 06520, United States
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28
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Swamy V. The structural origin of the unusual compression behaviors in nanostructured TiO2: insights from first-principles calculations. Phys Chem Chem Phys 2014; 16:18156-62. [DOI: 10.1039/c4cp02033b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
First-principles calculations of anatase structured TiO2 and ZrO2 as well as of TiO2–B were carried up to 20 GPa in order to develop an understanding of the unusual compression and pressure-dependent phase transitions reported for nanocrystalline (nc) pure and Zr-doped anatase and nc TiO2–B.
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Affiliation(s)
- Varghese Swamy
- Advanced Engineering Platform
- School of Engineering
- Monash University Malaysia
- Jalan Lagoon Selatan
- Bandar Sunway, Malaysia
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