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Tanudji J, Kasai H, Okada M, Ogawa T, Aspera SM, Nakanishi H. 211At on gold nanoparticles for targeted radionuclide therapy application. Phys Chem Chem Phys 2024; 26:12915-12927. [PMID: 38629229 DOI: 10.1039/d3cp05326a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Targeted alpha therapy (TAT) is a methodology that is being developed as a promising cancer treatment using the α-particle decay of radionuclides. This technique involves the use of heavy radioactive elements being placed near the cancer target area to cause maximum damage to the cancer cells while minimizing the damage to healthy cells. Using gold nanoparticles (AuNPs) as carriers, a more effective therapy methodology may be realized. AuNPs can be good candidates for transporting these radionuclides to the vicinity of the cancer cells since they can be labeled not just with the radionuclides, but also a host of other proteins and ligands to target these cells and serve as additional treatment options. Research has shown that astatine and iodine are capable of adsorbing onto the surface of gold, creating a covalent bond that is quite stable for use in experiments. However, there are still many challenges that lie ahead in this area, whether they be theoretical, experimental, and even in real-life applications. This review will cover some of the major developments, as well as the current state of technology, and the problems that need to be tackled as this research topic moves along to maturity. The hope is that with more workers joining the field, we can make a positive impact on society, in addition to bringing improvement and more knowledge to science.
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Affiliation(s)
- Jeffrey Tanudji
- Department of Applied Physics, The University of Osaka, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Hideaki Kasai
- Institute of Radiation Sciences, The University of Osaka, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan.
| | - Michio Okada
- Institute of Radiation Sciences, The University of Osaka, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan.
- Department of Chemistry, The University of Osaka, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Tetsuo Ogawa
- Institute of Radiation Sciences, The University of Osaka, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan.
- Department of Physics, The University of Osaka, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Susan M Aspera
- Research Initiative for Supra-Materials, Shinshu University, 4-17-1 Wakasato, Nagano, Nagano 380-8553, Japan
| | - Hiroshi Nakanishi
- National Institute of Technology, Akashi College, 679-3 Nishioka, Uozumi-cho, Akashi, Hyogo 674-8501, Japan
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2
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Liu D, Zhu H, Gong X, Yuan S, Ma H, He P, Fan Y, Zhao W, Ren H, Guo W. Understanding and controlling the formation of single-atom site from supported Cu 10 cluster by tuning CeO 2 reducibility: Theoretical insight into the Gd-doping effect on electronic metal-support interaction. J Colloid Interface Sci 2024; 661:720-729. [PMID: 38320408 DOI: 10.1016/j.jcis.2024.01.174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 01/18/2024] [Accepted: 01/25/2024] [Indexed: 02/08/2024]
Abstract
Controlling the formation of single-atom (SA) sites from supported metal clusters is an important and interesting issue to effectively improve the catalytic performance of heterogeneous catalysts. For extensively studied CO oxidation over metal/CeO2 systems, the SA formation and stabilization under reaction conditions is generally attributed to CO adsorption, however, the pivotal role played by the reducible CeO2 support and the underlying electronic metal-support interaction (EMSI) are not yet fully understood. Based on a ceria-supported Cu10 catalyst model, we performed density functional theory calculations to investigate the intrinsic SA formation mechanism and discussed the synergistic effect of Gd-doped CeO2 and CO adsorption on the SA formation. The CeO2 reducibility is tuned with doped Gd content ranging from 12.5 % ∼ 25 %. Based on ab initio thermodynamic and ab initio molecular dynamics, the critical condition for SA formation was identified as 21.875 % Gd-doped CeO2 with CO-saturated adsorption on Cu10. Electronic analysis revealed that the open-shell lattice Oδ- (δ < 2) generated by Gd doping facilitates the charge transfer from the bottom-corner Cu (Cubc) to CeO2. The CO-saturated adsorption further promotes this charge transfer process and enhances the EMSI between Cubc and CeO2, leading to the disintegration of Cubc from Cu10 and subsequent formation of the active SA site.
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Affiliation(s)
- Dongyuan Liu
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, PR China
| | - Houyu Zhu
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, PR China.
| | - Xiaoxiao Gong
- State Key Laboratory of Molecular & Process Engineering, SINOPEC Research Institute of Petroleum Processing Co., Ltd., Beijing 10083, PR China
| | - Saifei Yuan
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, PR China
| | - Hao Ma
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, PR China
| | - Ping He
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, PR China
| | - Yucheng Fan
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, PR China
| | - Wen Zhao
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, PR China
| | - Hao Ren
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, PR China
| | - Wenyue Guo
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, PR China.
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Li H, Wang J, Ruan Z, Nan P, Ge B, Cheng M, Yang L, Li X, Liu Q, Pan B, Zhang Q, Xiao C, Xie Y. Electron transfer bridge inducing polarization of nitrogen molecules for enhanced photocatalytic nitrogen fixation. MATERIALS HORIZONS 2023; 10:5053-5059. [PMID: 37655791 DOI: 10.1039/d3mh01041d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Ammonia (NH3) plays a crucial role in the production of fertilizers, medicines, fibers, etc., which are closely relevant to the development of human society. However, the inert and nonpolar properties of NN seriously hinder artificial nitrogen fixation under mild conditions. Herein, we introduce a novel strategy to enhance the photocatalytic efficiency of N2 fixation through the directional polarization of N2 by rare earth metal atoms, which act as a local "electron transfer bridge." This bridge facilitates the transfer of delocalized electrons to the distal N atom and redirects the polarization of adsorbed N2 molecules. Taking cerium doped BiOCl (Ce-BiOCl) as an example, our results reveal that the electrons transfer to the distal N atom through the cerium atom, resulting in absorbed nitrogen molecular polarization. Consequently, the polarized nitrogen molecules exhibit an easier trend for NN cleavage and the subsequent hydrogenation process, and exhibit a greatly enhanced photocatalytic ammonia production rate of 46.7 μmol g-1 h-1 in cerium doped BiOCl, nearly 4 times higher than that of pure BiOCl. The original concept of directional polarization of N2 presented in this work not only deepens our understanding of the N2 molecular activation mechanism but also broadens our horizons for designing highly efficient catalysts for N2 fixation.
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Affiliation(s)
- Huiyi Li
- Hefei National Research Center for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jiongrong Wang
- Key laboratory of Strongy-Coupled Quantum Matter Physics, Department of Physics University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
| | - Zhoushilin Ruan
- Hefei National Research Center for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Pengfei Nan
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
| | - Binghui Ge
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China
| | - Ming Cheng
- Hefei National Research Center for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Lan Yang
- Hefei National Research Center for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xiaohong Li
- Hefei National Research Center for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Qilong Liu
- Institute of Energy, Hefei Comprehensive National Science Center, Hefei, Anhui, 230031, China
| | - Bicai Pan
- Hefei National Research Center for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Qun Zhang
- Hefei National Research Center for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Chong Xiao
- Hefei National Research Center for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), University of Science and Technology of China, Hefei, Anhui 230026, China
- Institute of Energy, Hefei Comprehensive National Science Center, Hefei, Anhui, 230031, China
| | - Yi Xie
- Hefei National Research Center for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), University of Science and Technology of China, Hefei, Anhui 230026, China
- Institute of Energy, Hefei Comprehensive National Science Center, Hefei, Anhui, 230031, China
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Enhanced photocatalytic performance of g-C3N4@Ce-Fe bimetallic oxide with Z-scheme heterojunction for rapid degradation of tetracycline and its photodegradation pathway. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129780] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Wang X, Zhu Y, Li H, Lee JM, Tang Y, Fu G. Rare-Earth Single-Atom Catalysts: A New Frontier in Photo/Electrocatalysis. SMALL METHODS 2022; 6:e2200413. [PMID: 35751459 DOI: 10.1002/smtd.202200413] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 05/29/2022] [Indexed: 06/15/2023]
Abstract
Single-atom catalysts (SACs) provide well-defined active sites with 100% atom utilization, and can be prepared using a wide range of support materials. Therefore, they are attracting global attention, especially in the fields of energy conversion and storage. To date, research has focused on transition-metal and precious-metal-based SACs. More recently, rare-earth (RE)-based SACs have emerged as a new frontier in photo/electrocatalysis owing to their unique electronic structure arising from the spin-orbit coupling of the 4f and valence orbitals, unsaturated coordination environment, and unique behavior as charge-transport bridges. However, a systematic review on the role of the RE active sites, catalytic mechanisms, and synthetic methods for RE SACs is lacking. Therefore, in this review, the latest developments in RE SACs having applications in photo/electrocatalysis are summarized and discussed. First, the theoretical advantages of RE SACs for photo/electrocatalysis are briefly introduced, focusing on the roles of the 4f orbitals and coupled energy levels. In addition, the most recent research progress on RE SACs is summarized for several important photo/electrocatalytic reactions and the corresponding catalytic mechanisms are discussed. Further, the synthetic strategies for the production of RE SACs are reported. Finally, challenges for the development of RE SACs are highlighted, along with future research directions and perspectives.
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Affiliation(s)
- Xuan Wang
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
| | - Yu Zhu
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
| | - Hao Li
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai, 980-8577, Japan
| | - Jong-Min Lee
- School of Chemical and Biomedical Engineering, Nanyang Technology University, Singapore, 637459, Singapore
| | - Yawen Tang
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
| | - Gengtao Fu
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, P. R. China
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Wei Y, Zhang Y, Chen Y, Wang F, Cao Y, Guan W, Li X. Crystal Faces-Tailored Oxygen Vacancy in Au/CeO 2 Catalysts for Efficient Oxidation of HMF to FDCA. CHEMSUSCHEM 2022; 15:e202101983. [PMID: 34644006 DOI: 10.1002/cssc.202101983] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 10/09/2021] [Indexed: 06/13/2023]
Abstract
Developing an efficient catalyst to upgrade 5-hydroxymethylfurfural (HMF) to high-value-added downstream chemicals is of great significance in biomass conversion. Nanorod (110)-, nanocube (100)-, and nanooctaheron (111)-CeO2 -supported Au nanoparticles were prepared to investigate the intrinsic effect of CeO2 crystal faces on the oxidation of HMF to 2,5-furandicarboxylic acid (FDCA). The experimental results and density functional theory calculation revealed that the concentration of oxygen vacancy (VO ) for exposed specific crystal faces was crucial to the oxygen adsorption ability, and Au/nanorod-CeO2 with the highest VO concentration promoted the formation of more oxygen active species (superoxide radical) on CeO2 (110) crystal face than (100) and (111) crystal faces. Besides, the higher VO concentration could provide a strong adsorption ability of HMF, greatly boosting the activation of HMF. Thus, these results led to a superior catalytic activity for HMF oxidation over Au/nanorod-CeO2 (FDCA yield of 96.5 %). In-situ Fourier-transform (FT)IR spectroscopy uncovered the HMF oxidation pathway, and the possible catalytic mechanism was proposed. The deep insight into the role of regulation for crystal faces provides a basis for the rational design of highly active facets for the oxidation of HMF and related reactions.
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Affiliation(s)
- Yanan Wei
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, P. R. China
| | - Yunlei Zhang
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, P. R. China
| | - Yao Chen
- School of the Environment and Safety, Jiangsu University, Zhenjiang, P. R. China
| | - Fang Wang
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, P. R. China
| | - Yu Cao
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, P. R. China
| | - Wen Guan
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, P. R. China
| | - Xin Li
- Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, P. R. China
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7
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Razmgar K, Altarawneh M, Oluwoye I, Senanayake G. Selective Hydrogenation of 1,3-Butadiene over Ceria Catalyst: A Molecular Insight. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112331] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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8
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Park DS, Hadad M, Riemer LM, Ignatans R, Spirito D, Esposito V, Tileli V, Gauquelin N, Chezganov D, Jannis D, Verbeeck J, Gorfman S, Pryds N, Muralt P, Damjanovic D. Induced giant piezoelectricity in centrosymmetric oxides. Science 2022; 375:653-657. [PMID: 35143321 DOI: 10.1126/science.abm7497] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Piezoelectrics are materials that linearly deform in response to an applied electric field. As a fundamental prerequisite, piezoelectric materials must have a noncentrosymmetric crystal structure. For more than a century, this has remained a major obstacle for finding piezoelectric materials. We circumvented this limitation by breaking the crystallographic symmetry and inducing large and sustainable piezoelectric effects in centrosymmetric materials by the electric field-induced rearrangement of oxygen vacancies. Our results show the generation of extraordinarily large piezoelectric responses [with piezoelectric strain coefficients (d33) of ~200,000 picometers per volt at millihertz frequencies] in cubic fluorite gadolinium-doped CeO2-x films, which are two orders of magnitude larger than the responses observed in the presently best-known lead-based piezoelectric relaxor-ferroelectric oxide at kilohertz frequencies. These findings provide opportunities to design piezoelectric materials from environmentally friendly centrosymmetric ones.
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Affiliation(s)
- D-S Park
- Group for Ferroelectrics and Functional Oxides, Swiss Federal Institute of Technology-EPFL, 1015 Lausanne, Switzerland.,Group for Electroceramic Thin Films, Swiss Federal Institute of Technology-EPFL, 1015 Lausanne, Switzerland
| | - M Hadad
- Group for Electroceramic Thin Films, Swiss Federal Institute of Technology-EPFL, 1015 Lausanne, Switzerland
| | - L M Riemer
- Group for Ferroelectrics and Functional Oxides, Swiss Federal Institute of Technology-EPFL, 1015 Lausanne, Switzerland
| | - R Ignatans
- Institute of Materials, Swiss Federal Institute of Technology-EPFL, 1015 Lausanne, Switzerland
| | - D Spirito
- Department of Materials Science and Engineering, Tel Aviv University, Ramat Aviv, Tel Aviv 6997801, Israel
| | - V Esposito
- Department of Energy Conversion and Storage, Technical University of Denmark, Fysikvej, 2800 Kongens Lyngby, Denmark
| | - V Tileli
- Institute of Materials, Swiss Federal Institute of Technology-EPFL, 1015 Lausanne, Switzerland
| | - N Gauquelin
- Electron Microscopy for Materials Science (EMAT), University of Antwerp, B-2020 Antwerpen, Belgium.,NANOlab Center of Excellence, University of Antwerp, 2020 Antwerp, Belgium
| | - D Chezganov
- Electron Microscopy for Materials Science (EMAT), University of Antwerp, B-2020 Antwerpen, Belgium.,NANOlab Center of Excellence, University of Antwerp, 2020 Antwerp, Belgium
| | - D Jannis
- Electron Microscopy for Materials Science (EMAT), University of Antwerp, B-2020 Antwerpen, Belgium.,NANOlab Center of Excellence, University of Antwerp, 2020 Antwerp, Belgium
| | - J Verbeeck
- Electron Microscopy for Materials Science (EMAT), University of Antwerp, B-2020 Antwerpen, Belgium.,NANOlab Center of Excellence, University of Antwerp, 2020 Antwerp, Belgium
| | - S Gorfman
- Department of Materials Science and Engineering, Tel Aviv University, Ramat Aviv, Tel Aviv 6997801, Israel
| | - N Pryds
- Department of Energy Conversion and Storage, Technical University of Denmark, Fysikvej, 2800 Kongens Lyngby, Denmark
| | - P Muralt
- Group for Electroceramic Thin Films, Swiss Federal Institute of Technology-EPFL, 1015 Lausanne, Switzerland
| | - D Damjanovic
- Group for Ferroelectrics and Functional Oxides, Swiss Federal Institute of Technology-EPFL, 1015 Lausanne, Switzerland
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9
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Kim E, Lee J, Bae C, Seok H, Kim HU, Kim T. Effects of trivalent lanthanide (La and Nd) doped ceria abrasives on chemical mechanical polishing. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2021.11.069] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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10
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Xu J, Zhang Q, Liang X, Yan J, Liu J, Wu Y. A multifunctional separator based on scandium oxide nanocrystal decorated carbon nanotubes for high performance lithium-sulfur batteries. NANOSCALE 2020; 12:6832-6843. [PMID: 32186309 DOI: 10.1039/d0nr00160k] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Rare earths (REs) and their oxides have aroused worldwide interest because of their unusual and remarkable properties, which mainly stem from the unique 4f orbital of REs. Research on their potential applications in electrochemical energy storage devices is just budding, and needs bold and active exploration. Here, a multifunctional Sc2O3@CNT-coated separator was developed and introduced into the Li-S battery system, simply by coating a thin and lightweight capping layer of a synthesized composite of Sc2O3 nanocrystal decorated carbon nanotubes (Sc2O3@CNTs) over one side of a commercial separator. The Li-S battery based on the Sc2O3@CNT-coated separator possesses very important properties, including high capacity, superior cycling stability, impressive rate performance, favorable anti-self-discharge capabilities, and greatly mitigated anode corrosion. Theoretical computation and experimental results demonstrate that such outstanding electrochemical properties originate from the synergy of CNTs and Sc2O3, which enables the Sc2O3@CNT-coated separator to achieve an optimal balance of multiple functions: (1) physically blocking polysulfide migration and acting as an upper current collector, (2) chemically anchoring polysulfide species, and (3) catalytically promoting the conversion of sulfur species into Li2S2/Li2S. This work first applies Sc2O3 to Li-S batteries, and the encouraging results show great potential of rare earth oxides for producing high-performance energy storage devices.
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Affiliation(s)
- Jun Xu
- School of Electronic Science & Applied Physics, Hefei University of Technology, Hefei 230009, P. R. China
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11
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Kim HJ, Jang MG, Shin D, Han JW. Design of Ceria Catalysts for Low‐Temperature CO Oxidation. ChemCatChem 2019. [DOI: 10.1002/cctc.201901787] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Hyung Jun Kim
- Department of Chemical EngineeringPohang University of Science and Technology (POSTECH) Pohang, Gyeongbuk 37673 Republic of Korea
| | - Myeong Gon Jang
- Department of Chemical EngineeringPohang University of Science and Technology (POSTECH) Pohang, Gyeongbuk 37673 Republic of Korea
| | - Dongjae Shin
- Department of Chemical EngineeringPohang University of Science and Technology (POSTECH) Pohang, Gyeongbuk 37673 Republic of Korea
| | - Jeong Woo Han
- Department of Chemical EngineeringPohang University of Science and Technology (POSTECH) Pohang, Gyeongbuk 37673 Republic of Korea
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Hou H, Watanabe K, Furuno H, Nishikawa M, Saito N. Photocatalytic Overall Water Splitting on RuO2-loaded Sm3+-doped CeO2 with Heterogenous Doping Structure. CHEM LETT 2019. [DOI: 10.1246/cl.180876] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Honghao Hou
- Department of Materials Science and Technology, Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan
| | - Katsuki Watanabe
- Department of Materials Science and Technology, Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan
| | - Hideto Furuno
- Department of Materials Science and Technology, Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan
| | - Masami Nishikawa
- Department of Materials Science and Technology, Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan
| | - Nobuo Saito
- Department of Materials Science and Technology, Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan
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13
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Zhang L, Meng J, Yao F, Zhang W, Liu X, Meng J, Zhang H. Insight into the Mechanism of the Ionic Conductivity for Ln-Doped Ceria (Ln = La, Pr, Nd, Pm, Sm, Gd, Tb, Dy, Ho, Er, and Tm) through First-Principles Calculation. Inorg Chem 2018; 57:12690-12696. [DOI: 10.1021/acs.inorgchem.8b01853] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lifang Zhang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
- University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Junling Meng
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
| | - Fen Yao
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wenwen Zhang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
- University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xiaojuan Liu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
- University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jian Meng
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
- University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Hongjie Zhang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
- University of Science and Technology of China, Hefei, Anhui 230026, China
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14
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Žguns PA, Ruban AV, Skorodumova NV. Phase diagram and oxygen-vacancy ordering in the CeO 2-Gd 2O 3 system: a theoretical study. Phys Chem Chem Phys 2018; 20:11805-11818. [PMID: 29658037 DOI: 10.1039/c8cp01029c] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
We present the phase diagram of Ce1-xGdxO2-x/2 (CGO), calculated by means of a combined Density Functional Theory (DFT), cluster expansion and lattice Monte Carlo approach. We show that this methodology gives reliable results for the whole range of concentrations (x ≡ xGd ≤ 1). In the thermodynamic equilibrium, we observe two transitions: the onset of oxygen-vacancy (O-Va) ordering at ca. 1200-3300 K for concentrations xGd = 0.3-1, and a phase separation into CeO2 and C-type Gd2O3 occurring below ca. 1000 K for all concentrations. We also model 'quenched' systems, with cations immobile below 1500 K, and observe that the presence of random-like cation configurations does not prevent C-type vacancy ordering. The obtained transition temperatures for Va ordering agree rather well with existing experimental data. We analyse the effect of vacancy ordering and composition on the lattice parameters and relaxation pattern of cations.
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Affiliation(s)
- Pjotrs A Žguns
- Department of Physics and Astronomy, Uppsala University, Box 516, 75121 Uppsala, Sweden.
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15
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Jung DH, Lee JH, Kilic ME, Soon A. Anisotropic vacancy-mediated phonon mode softening in Sm and Gd doped ceria. Phys Chem Chem Phys 2018; 20:10048-10059. [DOI: 10.1039/c8cp00559a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The structural, vibrational, and diffusion properties of different ceria-based systems (including oxygen vacancies and rare-earth dopants (Sm or Gd)) have been examined using both first-principles density-functional theory calculations and finite-temperature molecular dynamics simulations.
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Affiliation(s)
- Dong-Hyuk Jung
- Department of Materials Science and Engineering
- Yonsei University
- Seoul 03722
- Korea
| | - Ji-Hwan Lee
- Department of Materials Science and Engineering
- Yonsei University
- Seoul 03722
- Korea
| | - Mehmet Emin Kilic
- Department of Materials Science and Engineering
- Yonsei University
- Seoul 03722
- Korea
| | - Aloysius Soon
- Department of Materials Science and Engineering
- Yonsei University
- Seoul 03722
- Korea
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16
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Kim K, Yoo JD, Lee S, Bae M, Bae J, Jung W, Han JW. A Simple Descriptor to Rapidly Screen CO Oxidation Activity on Rare-Earth Metal-Doped CeO 2: From Experiment to First-Principles. ACS APPLIED MATERIALS & INTERFACES 2017; 9:15449-15458. [PMID: 28417639 DOI: 10.1021/acsami.7b01844] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Ceria (CeO2) is an attractive catalyst because of its unique properties, such as facile redoxability and high stability. Thus, many researchers have examined a wide range of catalytic reactions on ceria nanoparticles (NPs). Among those contributions are the reports of the dopant-dependent catalytic activity of ceria. On the other hand, there have been few mechanistic studies of the effects of a range of dopants on the chemical reactivity of ceria NPs. In this study, we examined the catalytic activities of pure and Pr, Nd, and Sm-doped CeO2 (PDC, NDC, and SDC, respectively) NPs on carbon monoxide (CO) oxidation. Density functional theory (DFT) calculations were also performed to elucidate the reaction mechanism on rare-earth (RE)-doped CeO2(111). The experimental results showed that the catalytic activities of CO oxidation were in the order of CeO2 > PDC > NDC > SDC. This is consistent with the DFT results, where the reaction is explained by the Mars-van Krevelen mechanism. On the basis of the theoretical interpretation of the experimental results, the ionic radius of the RE dopant can be used as a simple descriptor to predict the energy barrier at the rate-determining step, thereby predicting the entire reaction activity. Using the descriptor, a wide range of RE dopants on CeO2(111) were screened for CO oxidation. These results provide useful insights to unravel the CO oxidation activity on various oxide catalysts.
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Affiliation(s)
- Kyeounghak Kim
- Department of Chemical Engineering, University of Seoul , Seoul 02504, Republic of Korea
| | | | | | | | | | | | - Jeong Woo Han
- Department of Chemical Engineering, University of Seoul , Seoul 02504, Republic of Korea
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17
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Miran HA, Altarawneh M, Jiang ZT, Oskierski H, Almatarneh M, Dlugogorski BZ. Decomposition of selected chlorinated volatile organic compounds by ceria (CeO2). Catal Sci Technol 2017. [DOI: 10.1039/c7cy01096f] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Guided by recent experimental measurements, this study theoretically investigates the initial steps operating in the interactions of ceria surface CeO2(111) with three CVOC model compounds, namely chloroethene (CE), chloroethane (CA) and chlorobenzene (CB).
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Affiliation(s)
- Hussein A. Miran
- School of Engineering and Information Technology
- Murdoch University
- Murdoch
- Australia
- Department of Physics
| | | | - Zhong-Tao Jiang
- School of Engineering and Information Technology
- Murdoch University
- Murdoch
- Australia
| | - Hans Oskierski
- School of Engineering and Information Technology
- Murdoch University
- Murdoch
- Australia
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18
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Žguns PA, Ruban AV, Skorodumova NV. Ordering and phase separation in Gd-doped ceria: a combined DFT, cluster expansion and Monte Carlo study. Phys Chem Chem Phys 2017; 19:26606-26620. [DOI: 10.1039/c7cp04106c] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Ordering of dopants and oxygen vacancies is studied for Gd-doped ceria (xGd ≤ 0.25) by means of a combined density functional theory (DFT) and cluster expansion approach, where the cluster interactions derived from DFT calculations are further used in Monte Carlo simulations.
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Affiliation(s)
- Pjotrs A. Žguns
- Department of Physics and Astronomy
- Uppsala University
- 75121 Uppsala
- Sweden
- Department of Materials Science and Engineering
| | - Andrei V. Ruban
- Department of Materials Science and Engineering
- KTH Royal Institute of Technology
- 10044 Stockholm
- Sweden
- Materials Center Leoben Forschung GmbH
| | - Natalia V. Skorodumova
- Department of Physics and Astronomy
- Uppsala University
- 75121 Uppsala
- Sweden
- Department of Materials Science and Engineering
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19
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Evarestov RA, Gryaznov D, Arrigoni M, Kotomin EA, Chesnokov A, Maier J. Use of site symmetry in supercell models of defective crystals: polarons in CeO2. Phys Chem Chem Phys 2017; 19:8340-8348. [DOI: 10.1039/c6cp08582b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polarons and oxygen site symmetry in hybrid DFT calculations.
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Affiliation(s)
- R. A. Evarestov
- Department of Chemistry
- St. Petersburg State University
- St. Petersburg
- Russia
| | - D. Gryaznov
- Department of Theoretical Physics and Computer Modelling
- Institute of Solid State Physics
- University of Latvia
- Riga
- Latvia
| | - M. Arrigoni
- Department of Physical Chemistry of Solids
- Max Planck Institute for Solid State Research
- Stuttgart
- Germany
| | - E. A. Kotomin
- Department of Theoretical Physics and Computer Modelling
- Institute of Solid State Physics
- University of Latvia
- Riga
- Latvia
| | - A. Chesnokov
- Department of Theoretical Physics and Computer Modelling
- Institute of Solid State Physics
- University of Latvia
- Riga
- Latvia
| | - J. Maier
- Department of Physical Chemistry of Solids
- Max Planck Institute for Solid State Research
- Stuttgart
- Germany
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