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Han DH, Park H, Goto T, Seo Y, Kondo Y, Cho S, Sekino T. Stoichiometric Study on Ion Composition of a Precursor in Chemical Bottom-Up Synthesis for Peroxo-Titanate. ACS OMEGA 2024; 9:33293-33300. [PMID: 39100363 PMCID: PMC11292821 DOI: 10.1021/acsomega.4c05470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Revised: 07/09/2024] [Accepted: 07/11/2024] [Indexed: 08/06/2024]
Abstract
Layered alkali titanates of the lepidocrocite type are gaining enormous interest in various fields owing to their unique properties. These materials are mainly synthesized through a hydrothermal alkali treatment. However, this method uses a highly concentrated alkali solution, which has high environmental impacts and is therefore unsuitable for mass synthesis. Herein, we propose an efficient method for the large-scale synthesis of layered sodium titanate structures (Na2-x H x Ti2O5) using a recently reported bottom-up chemical process. The effects of the Na:Ti molar ratio in the peroxo-titanium complex ion precursor on the products are investigated through stoichiometric calculations for a molar ratio range of 10:1-1:1. The optimal ratio for the complete ionization of TiH2 (which is the starting material) to form the peroxo-titanium complex ion is found to be 1.1:1. The amount of alkali raw material required is 99.6% lower than that required in the traditional hydrothermal method. The crystal structures and morphologies of the samples are almost identical regardless of the Na:Ti molar ratio. The precursor-derived peroxo bonds narrow the energy band gaps of the layered titanates even when the amount of titanium ions dissolved in the precursor increases. The proposed method is not only an efficient synthetic route for mass production but also has potential applications in the development of photofunctional materials.
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Affiliation(s)
- Do Hyung Han
- SANKEN
(The Institute of Scientific and Industrial Research), Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Hyunsu Park
- SANKEN
(The Institute of Scientific and Industrial Research), Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Tomoyo Goto
- SANKEN
(The Institute of Scientific and Industrial Research), Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
- Institute
for Advanced Co-Creation Studies, Osaka
University, 1-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yeongjun Seo
- SANKEN
(The Institute of Scientific and Industrial Research), Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Yoshifumi Kondo
- SANKEN
(The Institute of Scientific and Industrial Research), Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Sunghun Cho
- SANKEN
(The Institute of Scientific and Industrial Research), Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Tohru Sekino
- SANKEN
(The Institute of Scientific and Industrial Research), Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
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Han DH, Park H, Goto T, Cho S, Seo Y, Kondo Y, Nishida H, Sekino T. Effects of Cation Exchange in Rhodamine B Photocatalytic Degradation Using Peroxo-Titanate Nanotubes. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1170. [PMID: 39057847 PMCID: PMC11279905 DOI: 10.3390/nano14141170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2024] [Revised: 07/05/2024] [Accepted: 07/06/2024] [Indexed: 07/28/2024]
Abstract
Lepidocrocite-type layered sodium titanate (NaxH2-xTi2O5) is widely used in environmental remediation because of its large specific surface area, formed by anisotropic crystal growth, and its ability to store and exchange cations between layers. Additionally, peroxo-titanate nanotubes (PTNTs), which are tubular titanates with peroxy groups, exhibit visible-light absorption capabilities, rendering them suitable for photocatalytic applications under visible light irradiation. However, because of cation exchange reactions, the Na+ concentration and pH of the solution can fluctuate under aqueous conditions, affecting the photocatalytic performance of the PTNTs. Herein, we evaluated the impact of cation exchange reactions on the photocatalytic degradation of Rhodamine B (Rh B) by PTNTs at controlled Na+ ratios. The observed pH of Rh B solutions increases due to the cation exchange reaction with Na+ and H3O+, leading to the formation of zwitter-ionic Rh B molecules, eventually weakening their adsorption and photodegradation performance. Moreover, the results indicate that inhibiting the pH increase of the Rh B solution can prevent the weakening of both the adsorption and photodegradation performance of PTNTs. This study highlights the significance of regulating the sodium ion content in layered titanate materials, emphasizing their importance in optimizing these materials' photocatalytic efficacy for environmental purification applications.
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Affiliation(s)
- Do Hyung Han
- Department of Advanced Hard Materials, SANKEN, Osaka University, 8-1 Mihogaoka, Ibaraki 567-0047, Japan; (D.H.H.); (H.P.); (T.G.); (S.C.); (Y.S.); (Y.K.); (H.N.)
| | - Hyunsu Park
- Department of Advanced Hard Materials, SANKEN, Osaka University, 8-1 Mihogaoka, Ibaraki 567-0047, Japan; (D.H.H.); (H.P.); (T.G.); (S.C.); (Y.S.); (Y.K.); (H.N.)
| | - Tomoyo Goto
- Department of Advanced Hard Materials, SANKEN, Osaka University, 8-1 Mihogaoka, Ibaraki 567-0047, Japan; (D.H.H.); (H.P.); (T.G.); (S.C.); (Y.S.); (Y.K.); (H.N.)
- Institute for Advanced Co-Creation Studies, Osaka University, 1-1 Yamadaoka, Suita 565-0871, Japan
| | - Sunghun Cho
- Department of Advanced Hard Materials, SANKEN, Osaka University, 8-1 Mihogaoka, Ibaraki 567-0047, Japan; (D.H.H.); (H.P.); (T.G.); (S.C.); (Y.S.); (Y.K.); (H.N.)
| | - Yeongjun Seo
- Department of Advanced Hard Materials, SANKEN, Osaka University, 8-1 Mihogaoka, Ibaraki 567-0047, Japan; (D.H.H.); (H.P.); (T.G.); (S.C.); (Y.S.); (Y.K.); (H.N.)
| | - Yoshifumi Kondo
- Department of Advanced Hard Materials, SANKEN, Osaka University, 8-1 Mihogaoka, Ibaraki 567-0047, Japan; (D.H.H.); (H.P.); (T.G.); (S.C.); (Y.S.); (Y.K.); (H.N.)
| | - Hisataka Nishida
- Department of Advanced Hard Materials, SANKEN, Osaka University, 8-1 Mihogaoka, Ibaraki 567-0047, Japan; (D.H.H.); (H.P.); (T.G.); (S.C.); (Y.S.); (Y.K.); (H.N.)
| | - Tohru Sekino
- Department of Advanced Hard Materials, SANKEN, Osaka University, 8-1 Mihogaoka, Ibaraki 567-0047, Japan; (D.H.H.); (H.P.); (T.G.); (S.C.); (Y.S.); (Y.K.); (H.N.)
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3
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Badr HO, Barsoum MW. Hydroxide-Derived Nanostructures: Scalable Synthesis, Characterization, Properties, and Potential Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2402012. [PMID: 38722144 DOI: 10.1002/adma.202402012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 04/18/2024] [Indexed: 05/28/2024]
Abstract
Metal oxide nanostructures have received an increasing attention owing to their unique chemical and physical properties along with their widespread applications in various fields. This article provides an overview of the recent discovery - christened Hydroxides-Derived Nanostructures, or HDNs - in which hydroxide aqueous solutions (mostly tetramethylammonium hydroxide, TMAH) are reacted at temperatures < 100 °C and under atmospheric pressure with various metal-containing precursors to scalably prepare novel metal oxide nanostructures. In one case, a dozen commercial and earth abundant Ti-containing powders such as binary carbides, nitrides, borides, among others, are converted into new, 1D TiO2-based lepidocrocite (1DL) nanofilaments (NFs). Application-wise, the 1DLs show outstanding performance in a number of energy, environmental, and biomedical fields such as photo- and electrocatalysis, water splitting, lithium-sulfur and lithium-ion batteries, water purification, dye degradation, cancer therapy, and polymer composites. In addition to 1DL, the HDNs family encompasses other metal oxides nanostructures including magnetic Fe3O4 nanoparticles and MnO2 birnessite-based crystalline 2D flakes. The latter showed promise in electrochemical energy conversion and storage applications. The developed recipe provides a new vista in the molecular self-assembly synthesis of nanomaterials that can advance the field with a library of novel nanostructures with substantial implications in a multitude of fields.
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Affiliation(s)
- Hussein O Badr
- Department of Material Science and Engineering, Drexel University, Philadelphia, PA, 19104, USA
| | - Michel W Barsoum
- Department of Material Science and Engineering, Drexel University, Philadelphia, PA, 19104, USA
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Ospina-Acevedo F, Albiter LA, Bailey KO, Godínez-Salomón JF, Rhodes CP, Balbuena PB. Catalytic Activity and Electrochemical Stability of Ru 1-xM xO 2 (M = Zr, Nb, Ta): Computational and Experimental Study of the Oxygen Evolution Reaction. ACS APPLIED MATERIALS & INTERFACES 2024; 16:16373-16398. [PMID: 38502743 PMCID: PMC10995909 DOI: 10.1021/acsami.4c01408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 03/05/2024] [Indexed: 03/21/2024]
Abstract
We use computations and experiments to determine the effect of substituting zirconium, niobium, and tantalum within rutile RuO2 on the structure, oxygen evolution reaction (OER) mechanism and activity, and electrochemical stability. Calculated electronic structures altered by Zr, Nb, and Ta show surface regions of electron density depletion and accumulation, along with anisotropic lattice parameter shifts dependent on the substitution site, substituent, and concentration. Consistent with theory, X-ray photoelectron spectroscopy experiments show shifts in binding energies of O-2s, O-2p, and Ru-4d peaks due to the substituents. Experimentally, the substituted materials showed the presence of two phases with a majority phase that contains the metal substituent within the rutile phase and a second, smaller-percentage RuO2 phase. Our experimental analysis of OER activity shows Zr, Nb, and Ta substituents at 12.5 atom % induce lower activity relative to RuO2, which agrees with computing the average of all sites; however, Zr and Ta substitution at specific sites yields higher theoretical OER activity than RuO2, with Zr substitution suggesting an alternative OER mechanism. Metal dissolution predictions show the involvement of cooperative interactions among multiple surface sites and the electrolyte. Zr substitution at specific sites increases activation barriers for Ru dissolution, however, with Zr surface dissolution rates comparable to those of Ru. Experimental OER stability analysis shows lower Ru dissolution from synthesized RuO2 and Zr-substituted RuO2 compared to commercial RuO2 and comparable amounts of Zr and Ru dissolved from Zr-substituted RuO2, aligned with our calculations.
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Affiliation(s)
- Francisco Ospina-Acevedo
- Department
of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Luis A. Albiter
- Materials
Science, Engineering and Commercialization Program, Texas State University, San Marcos, Texas 78666, United States
| | - Kathleen O. Bailey
- Department
of Chemistry and Biochemistry, Texas State
University, San Marcos, Texas 78666, United States
| | | | - Christopher P. Rhodes
- Materials
Science, Engineering and Commercialization Program, Texas State University, San Marcos, Texas 78666, United States
- Department
of Chemistry and Biochemistry, Texas State
University, San Marcos, Texas 78666, United States
| | - Perla B. Balbuena
- Department
of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
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Kalashnikova GO, Krivovichev SV, Yakovenchuk VN, Selivanova EA, Avdontceva MS, Ivanyuk GY, Pakhomovsky YA, Gryaznova DV, Kabanova NA, Morkhova YA, Sinel’shchikova OY, Bocharov VN, Nikolaev AI, Goychuk OF, Volkov SN, Panikorovskii TL. The AM-4 Family of Layered Titanosilicates: Single-Crystal-to-Single-Crystal Transformation, Synthesis and Ionic Conductivity. MATERIALS (BASEL, SWITZERLAND) 2023; 17:111. [PMID: 38203965 PMCID: PMC10780191 DOI: 10.3390/ma17010111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 11/08/2023] [Accepted: 11/27/2023] [Indexed: 01/12/2024]
Abstract
Flexible crystal() structures, which exhibit() single-crystal()-to-single-crystal() (SCSC) transformations(), are attracting attention() in many applied aspects: magnetic() switches, catalysis, ferroelectrics and sorption. Acid treatment() for titanosilicate material() AM-4 and natural() compounds with the same structures led to SCSC transformation() by loss() Na+, Li+ and Zn2+ cations with large structural() changes (20% of the unit()-cell() volume()). The conservation() of crystallinity through complex() transformation() is possible due() to the formation() of a strong hydrogen bonding() system(). The mechanism() of transformation() has been characterized using single-crystal() X-ray() diffraction analysis(), powder() diffraction, Rietvield refinement, Raman spectroscopy and electron microscopy. The low migration() energy() of cations in the considered materials() is confirmed using bond()-valence and density() functional() theory() calculations, and the ion conductivity of the AM-4 family's materials() has been experimentally verified.
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Affiliation(s)
- Galina O. Kalashnikova
- Laboratory for Synthesis and Research of the Properties of Mineral-Like Functional Materials, Nanomaterial Research Center of the Kola Science Centre, Russian Academy of Sciences, Fersmana str. 14, 184209 Apatity, Russia; (G.O.K.); (S.V.K.); (V.N.Y.); (E.A.S.); (G.Y.I.); (Y.A.P.); (D.V.G.); (A.I.N.); (O.F.G.)
| | - Sergey V. Krivovichev
- Laboratory for Synthesis and Research of the Properties of Mineral-Like Functional Materials, Nanomaterial Research Center of the Kola Science Centre, Russian Academy of Sciences, Fersmana str. 14, 184209 Apatity, Russia; (G.O.K.); (S.V.K.); (V.N.Y.); (E.A.S.); (G.Y.I.); (Y.A.P.); (D.V.G.); (A.I.N.); (O.F.G.)
- Department of Crystallography, Institute of Earth Sciences, St. Petersburg State University, 7–9 University Emb., 199034 St. Petersburg, Russia;
| | - Victor N. Yakovenchuk
- Laboratory for Synthesis and Research of the Properties of Mineral-Like Functional Materials, Nanomaterial Research Center of the Kola Science Centre, Russian Academy of Sciences, Fersmana str. 14, 184209 Apatity, Russia; (G.O.K.); (S.V.K.); (V.N.Y.); (E.A.S.); (G.Y.I.); (Y.A.P.); (D.V.G.); (A.I.N.); (O.F.G.)
- Geological Institute, Kola Science Center of Russian Academy of Sciences, 14 Fersman Street, 184200 Apatity, Russia
| | - Ekaterina A. Selivanova
- Laboratory for Synthesis and Research of the Properties of Mineral-Like Functional Materials, Nanomaterial Research Center of the Kola Science Centre, Russian Academy of Sciences, Fersmana str. 14, 184209 Apatity, Russia; (G.O.K.); (S.V.K.); (V.N.Y.); (E.A.S.); (G.Y.I.); (Y.A.P.); (D.V.G.); (A.I.N.); (O.F.G.)
- Geological Institute, Kola Science Center of Russian Academy of Sciences, 14 Fersman Street, 184200 Apatity, Russia
| | - Margarita S. Avdontceva
- Department of Crystallography, Institute of Earth Sciences, St. Petersburg State University, 7–9 University Emb., 199034 St. Petersburg, Russia;
| | - Gregory Yu. Ivanyuk
- Laboratory for Synthesis and Research of the Properties of Mineral-Like Functional Materials, Nanomaterial Research Center of the Kola Science Centre, Russian Academy of Sciences, Fersmana str. 14, 184209 Apatity, Russia; (G.O.K.); (S.V.K.); (V.N.Y.); (E.A.S.); (G.Y.I.); (Y.A.P.); (D.V.G.); (A.I.N.); (O.F.G.)
| | - Yakov A. Pakhomovsky
- Laboratory for Synthesis and Research of the Properties of Mineral-Like Functional Materials, Nanomaterial Research Center of the Kola Science Centre, Russian Academy of Sciences, Fersmana str. 14, 184209 Apatity, Russia; (G.O.K.); (S.V.K.); (V.N.Y.); (E.A.S.); (G.Y.I.); (Y.A.P.); (D.V.G.); (A.I.N.); (O.F.G.)
- Geological Institute, Kola Science Center of Russian Academy of Sciences, 14 Fersman Street, 184200 Apatity, Russia
| | - Darya V. Gryaznova
- Laboratory for Synthesis and Research of the Properties of Mineral-Like Functional Materials, Nanomaterial Research Center of the Kola Science Centre, Russian Academy of Sciences, Fersmana str. 14, 184209 Apatity, Russia; (G.O.K.); (S.V.K.); (V.N.Y.); (E.A.S.); (G.Y.I.); (Y.A.P.); (D.V.G.); (A.I.N.); (O.F.G.)
| | - Natalya A. Kabanova
- Laboratory of Nature-Inspired Technologies and Environmental Safety of the Arctic, Nanomaterial Research Center of the Kola Science Centre, Russian Academy of Sciences, Fersmana str. 14, 184209 Apatity, Russia;
- Samara Center for Theoretical Materials Science, Samara State Technical University, Molodogvardeyskaya Str. 244, 443100 Samara, Russia
| | - Yelizaveta A. Morkhova
- Institute of Experimental Medicine and Biotechnology, Samara State Medical University, Chapayevskaya Srt. 89, 443099 Samara, Russia;
| | - Olga Yu. Sinel’shchikova
- Laboratory of Physicochemical Design and Synthesis of Functional Materials, Institute of Silicate Chemistry of Russian Academy of Sciences, 2 Adm. Makarova, 199034 St. Petersburg, Russia;
| | - Vladimir N. Bocharov
- Geo Environmental Centre “Geomodel”, St. Petersburg State University, Universitetskaya nab., 7/9, 199034 St. Petersburg, Russia;
| | - Anatoly I. Nikolaev
- Laboratory for Synthesis and Research of the Properties of Mineral-Like Functional Materials, Nanomaterial Research Center of the Kola Science Centre, Russian Academy of Sciences, Fersmana str. 14, 184209 Apatity, Russia; (G.O.K.); (S.V.K.); (V.N.Y.); (E.A.S.); (G.Y.I.); (Y.A.P.); (D.V.G.); (A.I.N.); (O.F.G.)
- Tananaev Institute of Chemistry of the Kola Science Centre, Russian Academy of Sciences, Academic Town, 26a, 184209 Apatity, Russia
| | - Olga F. Goychuk
- Laboratory for Synthesis and Research of the Properties of Mineral-Like Functional Materials, Nanomaterial Research Center of the Kola Science Centre, Russian Academy of Sciences, Fersmana str. 14, 184209 Apatity, Russia; (G.O.K.); (S.V.K.); (V.N.Y.); (E.A.S.); (G.Y.I.); (Y.A.P.); (D.V.G.); (A.I.N.); (O.F.G.)
- Laboratory of Nature-Inspired Technologies and Environmental Safety of the Arctic, Nanomaterial Research Center of the Kola Science Centre, Russian Academy of Sciences, Fersmana str. 14, 184209 Apatity, Russia;
| | - Sergei N. Volkov
- Laboratory of Arctic Mineralogy and Material Sciences, Nanomaterial Research Center of the Kola Science Centre, Russian Academy of Sciences, Fersmana str. 14, 184209 Apatity, Russia;
| | - Taras L. Panikorovskii
- Laboratory of Nature-Inspired Technologies and Environmental Safety of the Arctic, Nanomaterial Research Center of the Kola Science Centre, Russian Academy of Sciences, Fersmana str. 14, 184209 Apatity, Russia;
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Feng X, Shi Y, Hu A, Feng R, Xiao Z. Regulating the PO 4 and TiO 6 Polyhedral Building Blocks in TiP 2O 7 Boosts the Potassium Ion Diffusion Kinetics. ACS APPLIED MATERIALS & INTERFACES 2023; 15:54499-54509. [PMID: 37962277 DOI: 10.1021/acsami.3c12421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Achieving fast and durable potassiation/depotassiation of anode materials for potassium ion batteries (PIB) still remains an elusive yet fascinating goal. Herein, we challenge the conventional wisdom in synthesizing the TiP2O7 superstructure and report a nanocarbon coating on TiP2O7 (TiP2O7/C) using layered MXene as a Ti source to realize an effective tuning in the TiO6 and PO4 building blocks for boosting the K+ diffusion kinetics in PIB. Experimental investigations coupled with systematic theoretical simulations indicate that the interface interaction between TiP2O7 and coated nanocarbon could induce internal adjustment in individual Ti-O bonding and relieve the local distortions of TiO6 octahedra, which endows the TiP2O7/C with favorable regulation in a K+ hopping manner and significantly reduces the K+ diffusion barrier via the diffusion propagation along PO4 blocks with dominant coordination between O/P and K+. Consequently, the TiP2O7/C anode could retain 230 mA h g-1 even after 2200 long-term cycles with an ultralow degradation rate of 0.005%.
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Affiliation(s)
- Xinyue Feng
- Henan Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng 475004, China
| | - Yanqin Shi
- Henan Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng 475004, China
| | - Aiguo Hu
- Henan Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng 475004, China
| | - Ruiping Feng
- Henan Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng 475004, China
| | - Zhubing Xiao
- Henan Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng 475004, China
- Key Laboratory of Carbon Materials of Zhejiang Province, Wenzhou University, Wenzhou 325035, China
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7
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Yun Q, Ge Y, Shi Z, Liu J, Wang X, Zhang A, Huang B, Yao Y, Luo Q, Zhai L, Ge J, Peng Y, Gong C, Zhao M, Qin Y, Ma C, Wang G, Wa Q, Zhou X, Li Z, Li S, Zhai W, Yang H, Ren Y, Wang Y, Li L, Ruan X, Wu Y, Chen B, Lu Q, Lai Z, He Q, Huang X, Chen Y, Zhang H. Recent Progress on Phase Engineering of Nanomaterials. Chem Rev 2023. [PMID: 37962496 DOI: 10.1021/acs.chemrev.3c00459] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
As a key structural parameter, phase depicts the arrangement of atoms in materials. Normally, a nanomaterial exists in its thermodynamically stable crystal phase. With the development of nanotechnology, nanomaterials with unconventional crystal phases, which rarely exist in their bulk counterparts, or amorphous phase have been prepared using carefully controlled reaction conditions. Together these methods are beginning to enable phase engineering of nanomaterials (PEN), i.e., the synthesis of nanomaterials with unconventional phases and the transformation between different phases, to obtain desired properties and functions. This Review summarizes the research progress in the field of PEN. First, we present representative strategies for the direct synthesis of unconventional phases and modulation of phase transformation in diverse kinds of nanomaterials. We cover the synthesis of nanomaterials ranging from metal nanostructures such as Au, Ag, Cu, Pd, and Ru, and their alloys; metal oxides, borides, and carbides; to transition metal dichalcogenides (TMDs) and 2D layered materials. We review synthesis and growth methods ranging from wet-chemical reduction and seed-mediated epitaxial growth to chemical vapor deposition (CVD), high pressure phase transformation, and electron and ion-beam irradiation. After that, we summarize the significant influence of phase on the various properties of unconventional-phase nanomaterials. We also discuss the potential applications of the developed unconventional-phase nanomaterials in different areas including catalysis, electrochemical energy storage (batteries and supercapacitors), solar cells, optoelectronics, and sensing. Finally, we discuss existing challenges and future research directions in PEN.
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Affiliation(s)
- Qinbai Yun
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
- Department of Chemical and Biological Engineering & Energy Institute, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Yiyao Ge
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Zhenyu Shi
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Jiawei Liu
- Institute of Sustainability for Chemicals, Energy and Environment, Agency for Science, Technology and Research (A*STAR), Singapore, 627833, Singapore
| | - Xixi Wang
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - An Zhang
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Biao Huang
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Hong Kong, China
| | - Yao Yao
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Qinxin Luo
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Li Zhai
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Hong Kong, China
| | - Jingjie Ge
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR
| | - Yongwu Peng
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Chengtao Gong
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Meiting Zhao
- Institute of Molecular Aggregation Science, Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University, Tianjin 300072, China
| | - Yutian Qin
- Institute of Molecular Aggregation Science, Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University, Tianjin 300072, China
| | - Chen Ma
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Gang Wang
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Qingbo Wa
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Xichen Zhou
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Zijian Li
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Siyuan Li
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Wei Zhai
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Hua Yang
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Yi Ren
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Yongji Wang
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Lujing Li
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Xinyang Ruan
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Yuxuan Wu
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Bo Chen
- State Key Laboratory of Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials, School of Chemistry and Life Sciences, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
| | - Qipeng Lu
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Zhuangchai Lai
- Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Qiyuan He
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, China
| | - Xiao Huang
- Institute of Advanced Materials (IAM), School of Flexible Electronics (SoFE), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China
| | - Ye Chen
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Hua Zhang
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Hong Kong, China
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen 518057, China
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8
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Xing C, Yang L, He R, Spadaro MC, Zhang Y, Arbiol J, Li J, Poudel B, Nozariasbmarz A, Li W, Lim KH, Liu Y, Llorca J, Cabot A. Brookite TiO 2 Nanorods as Promising Electrochromic and Energy Storage Materials for Smart Windows. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2303639. [PMID: 37608461 DOI: 10.1002/smll.202303639] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 07/15/2023] [Indexed: 08/24/2023]
Abstract
Electrochromic smart windows (ESWs) offer an attractive option for regulating indoor lighting conditions. Electrochromic materials based on ion insertion/desertion mechanisms also present the possibility for energy storage, thereby increasing overall energy efficiency and adding value to the system. However, current electrochromic electrodes suffer from performance degradation, long response time, and low coloration efficiency. This work aims to produce defect-engineered brookite titanium dioxide (TiO2 ) nanorods (NRs) with different lengths and investigate their electrochromic performance as potential energy storage materials. The controllable synthesis of TiO2 NRs with inherent defects, along with smaller impedance and higher carrier concentrations, significantly enhances their electrochromic performance, including improved resistance to degradation, shorter response times, and enhanced coloration efficiency. The electrochromic performance of TiO2 NRs, particularly longer ones, is characterized by fast switching speeds (20 s for coloration and 12 s for bleaching), high coloration efficiency (84.96 cm2 C-1 at a 600 nm wavelength), and good stability, highlighting their potential for advanced electrochromic smart window applications based on Li+ ion intercalation.
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Affiliation(s)
- Congcong Xing
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, 16802, USA
- Catalonia Institute for Energy Research (IREC), Sant Adrià de Besòs, Barcelona, 08930, Spain
- Institute of Energy Technologies, Department of Chemical Engineering and Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, EEBE, Barcelona, 08019, Spain
| | - Linlin Yang
- Catalonia Institute for Energy Research (IREC), Sant Adrià de Besòs, Barcelona, 08930, Spain
- Departament d'Enginyeria Electronica i Biomedica, Universitat de Barcelona, Barcelona, 08028, Spain
| | - Ren He
- Catalonia Institute for Energy Research (IREC), Sant Adrià de Besòs, Barcelona, 08930, Spain
- Departament d'Enginyeria Electronica i Biomedica, Universitat de Barcelona, Barcelona, 08028, Spain
| | - Maria Chiara Spadaro
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, 08193, Spain
| | - Yu Zhang
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, 16802, USA
- Catalonia Institute for Energy Research (IREC), Sant Adrià de Besòs, Barcelona, 08930, Spain
| | - Jordi Arbiol
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, 08193, Spain
- ICREA, Pg. Lluis Companys 23, Barcelona, 08010, Spain
| | - Junshan Li
- Institute for Advanced Study, Chengdu University, Chengdu, Sichuan, 610106, China
| | - Bed Poudel
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, 16802, USA
| | - Amin Nozariasbmarz
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, 16802, USA
| | - Wenjie Li
- Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, 16802, USA
| | - Khak Ho Lim
- Institute of Zhejiang University-Quzhou, Quzhou, Zhejiang, 324000, China
| | - Yu Liu
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, Anhui, 230009, China
| | - Jordi Llorca
- Institute of Energy Technologies, Department of Chemical Engineering and Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya, EEBE, Barcelona, 08019, Spain
| | - Andreu Cabot
- Catalonia Institute for Energy Research (IREC), Sant Adrià de Besòs, Barcelona, 08930, Spain
- ICREA, Pg. Lluis Companys 23, Barcelona, 08010, Spain
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9
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Mostafa MS, Chen L, Selim MS, Betiha MA, Gao Y, Zhang R, Zhang S, Ge G. Novel TiO2@[TiO6]/CoTi layered double hydroxide as a superior ultraviolet/infrared heterojunction for enhanced infrared-prompted water splitting to hydrogen. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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10
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Ion-Exchange-Induced Transformation and Mechanism of Cooperative Crystal Chemical Adaptation in Sitinakite: Theoretical and Experimental Study. MINERALS 2022. [DOI: 10.3390/min12020248] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The microporous titanosilicate sitinakite, KNa2Ti4(SiO4)2O5(OH)·4H2O, was first discovered in the Khibiny alkaline massif. This material is also known as IONSIV IE-911 and is considered as one of the most effective sorbents for Cs+ and Sr2+ from water solutions. We investigate a mechanism of cooperative crystal chemical adaptation caused by the incorporation of La3+ ions into sitinakite structure by the combination of theoretical (geometrical–topological analysis, Voronoi migration map calculation, structural complexity calculation) and empirical methods (PXRD, SCXRD, Raman spectroscopy, scanning electron microscopy). The natural crystals of sitinakite (a = 7.8159(2), c = 12.0167(3) Å) were kept in a 1M solution of La(NO3)3 for 24 h. The ordering of La3+ cations in the channels of the ion-exchanged form La3+Ti4(SiO4)2O5(OH)·4H2O (a = 11.0339(10), b = 11.0598(8), c = 11.8430(7) Å), results in the symmetry breaking according to the group–subgroup relation P42/mcm → Cmmm.
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11
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Fu S, Liang B, Li Y, Lai S, Li L, Feng T, Li G. Layered Cu1–zMn1+zO2 Crednerite: Mapping the Phase Stabilization Region via Precise Compositional Control for Optimum Supercapacitor Performance. Inorg Chem 2022; 61:2576-2586. [DOI: 10.1021/acs.inorgchem.1c03541] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Sixian Fu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, China
- SINOPEC Beijing Research Institute of Chemical Industry, Beijing 100013, China
| | - Bin Liang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, China
| | - You Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, China
| | - Siyuan Lai
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, China
| | - Liping Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, China
| | - Tao Feng
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Guangshe Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, China
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12
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Nature-Inspired Nanoflower Structures on Titanium Surface via Alkali Treatment for Biomedical Applications. JOURNAL OF BIOMIMETICS BIOMATERIALS AND BIOMEDICAL ENGINEERING 2021. [DOI: 10.4028/www.scientific.net/jbbbe.52.20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Titanium based metallic biomaterials for orthopedic implant applications are often associated with biocompatibility problems which can be ameliorated via proper surface modification strategies. Improving the hydrophilic nature of the titanium surface offers an effective strategy to sort out such limitations by intensifying the cellular activity. Development of titania as well as titanate layers on the titanium surface via alkali treatment represents an effective strategy to improve the hydrophilicity of native titanium surface. Inspired from nature, in the present work, we report the formation of three-dimensional (3D) hierarchical nanoflowers resembling Gomphrena globosa flowers developed on commercially pure titanium (cp-Ti) surface via a facile alkali treatment technique. X-ray diffraction studies evidenced anatase and rutile phases of TiO2 confirming the development of titania on the surface. In addition to the TiO2 phase, presence of titanate (Na2Ti3O7) has also been observed as alkali treatment was conducted in NaOH solution. The hydrophilicity of the Ti surface has been enhanced after the alkali treatment as evidenced from wettability studies using static contact angle measurements. This increase in hydrophilicity is due to the enrichment of the surface by TiO2 and titanate and increased roughness of nanoflower surface based on classical Wenzel law. In addition, the alkali-treated surface demonstrated an increased polar surface energy beneficial for biocompatible surfaces.
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13
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Gu T, Jin X, Park S, Kim MG, Hwang S. Molecular-Level Control of the Intersheet Distance and Electronic Coupling between 2D Semiconducting and Metallic Nanosheets: Establishing Design Rules for High-Performance Hybrid Photocatalysts. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2004530. [PMID: 33854904 PMCID: PMC8024993 DOI: 10.1002/advs.202004530] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 01/10/2021] [Indexed: 05/05/2023]
Abstract
Hybridization with conductive nanospecies has attracted intense research interest as a general effective means to improve the photocatalytic functionalities of nanostructured materials. To establish universal design rules for high-performance hybrid photocatalysts, correlations between versatile roles of conductive species and interfacial interaction between hybridized species are systematically investigated through fine-control of intersheet distance between photocatalytically active TiO2 and metallic reduced graphene oxide (rGO)/RuO2 nanosheets. Molecular-level tailoring of intersheet distance and electronic coupling between 2D nanosheets can be successfully achieved by restacking of colloidal nanosheet mixture with variable-sized organic intercalants. While the shortest intersheet distance between restacked TiO2 and rGO nanosheets leads to the highest visible-light-driven photocatalytic activity, the best UV-vis photocatalyst performance occurs for moderate intersheet spacing. These results highlight the greater sensitivity of photoinduced electronic excitation to the intersheet distance than that of interfacial charge transfer. The rGO nanosheet can function as effective charge transport pathway and cocatalyst within ≈1.7 nm distance from the semiconducting nanosheet, and as efficient stabilizer for hybridized photocatalyst within ≈1.8 nm. The present study underscores that the intercalative restacking of colloidal nanosheet mixture with intercalants enables molecular-level control of distance between 2D inorganic/graphene nanosheets, which provides a rational design strategy for high-performance hybrid photocatalysts.
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Affiliation(s)
- Tae‐Ha Gu
- Department of Chemistry and NanoscienceCollege of Natural SciencesEwha Womans UniversitySeoul03760Republic of Korea
| | - Xiaoyan Jin
- Department of Materials Science and EngineeringCollege of EngineeringYonsei UniversitySeoul03722Republic of Korea
| | - So‐Jung Park
- Department of Chemistry and NanoscienceCollege of Natural SciencesEwha Womans UniversitySeoul03760Republic of Korea
| | - Min Gyu Kim
- Beamline Research DivisionPohang Accelerator Laboratory (PAL)Pohang37673Republic of Korea
| | - Seong‐Ju Hwang
- Department of Materials Science and EngineeringCollege of EngineeringYonsei UniversitySeoul03722Republic of Korea
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14
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Charoonsuk T, Sriphan S, Pulphol P, Vittayakorn W, Vittayakorn N, Maluangnont T. AC Conductivity and Dielectric Properties of Lepidocrocite-type Alkali Titanate Tunable by Interlayer Cation and Intralayer Metal. Inorg Chem 2020; 59:15813-15823. [PMID: 33078939 DOI: 10.1021/acs.inorgchem.0c02264] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The lepidocrocite-type layered alkali titanate AxMyTi2-yO4 has diverse chemical compositions with variation in charge per formula unit x, the interlayer cation A+, and the intralayer metal M. Despite this multivariable nature, the composition dependence of physical properties is not well explored. We report herein the AC conductivity and the complementary dielectric properties of Cs0.7M0.35Ti1.65O4, K0.8M0.4Ti1.6O4 (M = Zn, Ni), and the mixed-interlayer ion Cs0.6K0.1Zn0.35Ti1.65O4. For Cs0.7Zn0.35Ti1.65O4, the total AC conductivity is ∼7 × 10-8 to 2 × 10-6 S·cm-1 at 200-350 °C, associating with an activation energy Ea ∼ 865 meV. Meanwhile, the conductivity of K0.8Zn0.4Ti1.6O4 is higher by 1 order of magnitude at much lower temperature (25-150 °C) and a smaller Ea ∼ 250 meV. This difference originates from the compositional robustness of the cesium-containing samples, contrasting with the sintering-induced changes in the potassium analogues. For the latter, the loss of the interlayer K+ ion results in (i) generation of carriers due to charge compensation, (ii) reduction of sheet charge density and weakening of electrostatic attraction, and (iii) widening of the interlayer distance, all contributing to a lower Ea in K0.8M0.4Ti1.6O4. The angular frequency dependence of conductivity, dielectric permittivity (up to a colossal value of 109), and dielectric loss follows the universal power law. Our work demonstrates the potential of simple compositional variation for electrical properties tuning, prompting a more in-depth investigation covering a wider range of possible candidates of x, A+, and M in lepidocrocite titanate.
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Affiliation(s)
- Thitirat Charoonsuk
- Department of Materials Science, Faculty of Science, Srinakharinwirot University, 114 Sukhumvit 23, Watthana, Bangkok 10110, Thailand
| | - Saichon Sriphan
- Faculty of Science, Energy and Environment, King Mongkut's University of Technology North Bangkok, Rayong Campus, Rayong 21120, Thailand
| | - Phieraya Pulphol
- Electroceramics Research Laboratory, College of Nanotechnology, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand
| | - Wanwilai Vittayakorn
- Electroceramics Research Laboratory, College of Nanotechnology, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand
| | - Naratip Vittayakorn
- Advanced Materials Research Unit, Department of Chemistry, Faculty of Science, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand
| | - Tosapol Maluangnont
- Electroceramics Research Laboratory, College of Nanotechnology, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand
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15
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Ghosh SK, Perla VK, Mallick K. Enhancement of dielectric and electric-field-induced polarization of bismuth fluoride nanoparticles within the layered structure of carbon nitride. Sci Rep 2020; 10:14835. [PMID: 32908224 PMCID: PMC7481291 DOI: 10.1038/s41598-020-71953-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 08/24/2020] [Indexed: 11/09/2022] Open
Abstract
A single-pot, wet chemical method has been reported for the synthesis of bismuth fluoride nanoparticles (BF) and functionalized BF within the network of carbon nitride (BFCN). In BFCN, a structural transformation of BF, from cubic to pseudo-cubic (as evidenced by Rietveld refinement analysis), confirmed the contribution of carbon nitride (CN) on functionalization. The effect of functionalization of BF has been investigated through dielectric and field-induced polarization studies under different temperature and frequency conditions. Enhancement of dielectric constant values was noticed in BFCN as compared with BF system, in the order of 2.5 (30 °C) and 8.0 (100 °C) at 100 Hz. Fatigue-free maximum polarization values of 0.041 µC/cm2 and 0.054 µC/cm2, under the electric field of 5 kV/mm, were achieved for BF and BFCN samples, respectively, for 5 × 103 cycles.
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Affiliation(s)
- Sarit K Ghosh
- Department of Chemical Sciences, University of Johannesburg, P.O. Box: 524, Auckland Park, 2006, South Africa
| | - Venkata K Perla
- Department of Chemical Sciences, University of Johannesburg, P.O. Box: 524, Auckland Park, 2006, South Africa
| | - Kaushik Mallick
- Department of Chemical Sciences, University of Johannesburg, P.O. Box: 524, Auckland Park, 2006, South Africa.
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16
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Zhang Y, Li L, Liu Y, Feng T, Xi S, Wang X, Xue C, Qian J, Li G. A symbiotic hetero-nanocomposite that stabilizes unprecedented CaCl 2-type TiO 2 for enhanced solar-driven hydrogen evolution reaction. Chem Sci 2019; 10:8323-8330. [PMID: 31803409 PMCID: PMC6839608 DOI: 10.1039/c9sc01216h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 07/22/2019] [Indexed: 11/21/2022] Open
Abstract
Symbiotic hetero-nanocomposites prevail in many classes of minerals, functional substances and/or devices. However, design and development of a symbiotic hetero-nanocomposite that contains unachievable phases remain a significant challenge owing to the tedious formation conditions and the need for precise control over atomic nucleation in synthetic chemistry. Herein, we report a solution chemistry approach for a symbiotic hetero-nanocomposite that contains an unprecedented CaCl2-type titania phase inter-grown with rutile TiO2. CaCl2 structured TiO2, usually occurring when bulk rutile-TiO2 is compressed at an extreme pressure of several GPa, is identified to be a distorted structure with a tilt of adjacent ribbons of the c-axis of rutile. The structural specificity of the symbiotic CaCl2/rutile TiO2 hetero-nanocomposite was confirmed by Rietveld refinement, HRTEM, EXAFS, and Raman spectra, and the formation region (TiCl4 concentration vs. reaction temperature) was obtained by mapping the phase diagram. Due to the symbiotic relationship, this CaCl2-type TiO2 maintained a high stability via tight connection by edge dislocations with rutile TiO2, thus forming a CaCl2/rutile TiO2 heterojunction with a higher reduction capacity and enhanced charge separation efficiency. These merits endow symbiotic CaCl2/rutile TiO2 with a water splitting activity far superior to that of the commercial benchmark photocatalyst, P25 under simulated sunlight without the assistance of a cocatalyst. Our findings reported here may offer several useful understandings of the mechanical intergrowth process in functional symbiotic hetero-nanocomposites for super interfacial charge separation, where interfacial dislocation appears to be a universal cause.
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Affiliation(s)
- Yuelan Zhang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry , College of Chemistry , Jilin University , Changchun 130012 , P. R. China .
| | - Liping Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry , College of Chemistry , Jilin University , Changchun 130012 , P. R. China .
| | - Yan Liu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry , College of Chemistry , Jilin University , Changchun 130012 , P. R. China .
| | - Tao Feng
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry , College of Chemistry , Jilin University , Changchun 130012 , P. R. China .
| | - Shibo Xi
- Institute of Chemical and Engineering Sciences , ASTAR , 1 Pesek Road, Jurong Island , Singapore 627833 , Singapore
| | - Xiyang Wang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry , College of Chemistry , Jilin University , Changchun 130012 , P. R. China .
| | - Chenglin Xue
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry , College of Chemistry , Jilin University , Changchun 130012 , P. R. China .
| | - Jingyu Qian
- State Key Laboratory of Supramolecular Structure and Materials , College of Chemistry , Jilin University , Changchun 130012 , P. R. China
| | - Guangshe Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry , College of Chemistry , Jilin University , Changchun 130012 , P. R. China .
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17
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Ke X, Bernal SA, Sato T, Provis JL. Alkali aluminosilicate geopolymers as binders to encapsulate strontium-selective titanate ion-exchangers. Dalton Trans 2019; 48:12116-12126. [PMID: 31328757 DOI: 10.1039/c9dt02108f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Alkali-activated metakaolin geopolymers are attracting interest in the conditioning of nuclear wastes, especially for their ability to immobilise cationic species. However, there is limited understanding of the chemical interactions between the encapsulated spent ion-exchangers, used for decontaminating waste water, and the host aluminosilicate matrix. The lack of such understanding makes it difficult to predict the long-term stability of the waste form. In this study, the suitability of using metakaolin based geopolymer as a matrix for encapsulation of titanate-type ion-exchangers loaded with non-radioactive Sr was investigated for the first time, via spectroscopic and microstructural inspection of the encapsulated ion-exchangers and the aluminosilicate gel matrix. The microstructural and chemical properties of metakaolin geopolymers remained stable after encapsulating titanate type spent ion-exchangers, performed desirably as host materials for conditioning of Sr-loaded titanate ion-exchangers.
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Affiliation(s)
- Xinyuan Ke
- Department of Materials Science & Engineering, The University of Sheffield, Sheffield S1 3JD, UK.
| | - Susan A Bernal
- Department of Materials Science & Engineering, The University of Sheffield, Sheffield S1 3JD, UK.
| | - Tsutomu Sato
- Faculty of Engineering, Hokkaido University, Sapporo, Hokkaido 060-0808, Japan
| | - John L Provis
- Department of Materials Science & Engineering, The University of Sheffield, Sheffield S1 3JD, UK.
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18
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Uematsu E, Itadani A, Hashimoto H, Uematsu K, Toda K, Sato M. Tubular Titanates: Alkali-Metal Ion-Exchange Features and Carbon Dioxide Adsorption at Room Temperature. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.8b05662] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Atsushi Itadani
- Department of Human Sciences, Obihiro University of Agriculture and Veterinary Medicine, Inada-cho, Obihiro, Hokkaido 080-8555, Japan
| | - Hideki Hashimoto
- Department of Applied Chemistry, School of Advanced Engineering, Kogakuin University, 2665-1 Nakano-cho, Hachioji, Tokyo, 192-0015, Japan
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19
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Zhao Z, Long Y, Luo S, Wu W, Ma J. Preparation of a magnetic mesoporous Fe3O4–Pd@TiO2 photocatalyst for the efficient selective reduction of aromatic cyanides. NEW J CHEM 2019. [DOI: 10.1039/c8nj06508j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fe3O4–Pd@TiO2 exhibited extremely superior photocatalytic activity for the selective reduction of aromatic cyanides to aromatic primary amines.
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Affiliation(s)
- Ziming Zhao
- State Key Laboratory of Applied Organic Chemistry (SKLAOC)
- The Key Laboratory of Catalytic Engineering of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou
| | - Yu Long
- State Key Laboratory of Applied Organic Chemistry (SKLAOC)
- The Key Laboratory of Catalytic Engineering of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou
| | - Sha Luo
- State Key Laboratory of Applied Organic Chemistry (SKLAOC)
- The Key Laboratory of Catalytic Engineering of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou
| | - Wei Wu
- State Key Laboratory of Applied Organic Chemistry (SKLAOC)
- The Key Laboratory of Catalytic Engineering of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou
| | - Jiantai Ma
- State Key Laboratory of Applied Organic Chemistry (SKLAOC)
- The Key Laboratory of Catalytic Engineering of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou
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20
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Maluangnont T, Chanlek N, Suksawad T, Tonket N, Saikhamdee P, Sukkha U, Vittayakorn N. Beyond soft chemistry - bulk and surface modifications of polycrystalline lepidocrocite titanate induced by post-synthesis thermal treatment. Dalton Trans 2017; 46:14277-14285. [PMID: 29018851 DOI: 10.1039/c7dt03092d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
While the soft chemistry of layered alkali metal oxides is adequately understood, the effect of the post-synthesis thermal treatment on their structure, composition, and properties has been underexplored. In this article, we thoroughly investigated the bulk and surface modifications of K0.8M0.4Ti1.6O4 (M = Ni, Cu, Zn) lepidocrocite titanate thermally treated within 200 °C above its synthetic temperature under air. This practice was typically employed in e.g., specimen fabrication for physical property measurements. We observed the expansion of the interlayer distance (b/2) accompanied by a reduction in layer charge density. These findings can be explained by the deintercalation of interlayer K+ ions and the loss of intralayer Ti, M, and O species. Meanwhile, the enrichment of potassium and carbonate on the surfaces was evident. The slight differences in dielectric properties of the pellets thermally treated at different temperatures were attributed to the combination of bulk and surface modifications. At 103 Hz and RT-250 °C, the maximum dielectric constants ε'max of ∼104 with the dielectric loss (tan δ) ∼0.9-1.5 were obtained for K0.8Zn0.4Ti1.6O4.
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Affiliation(s)
- Tosapol Maluangnont
- Electroceramics Research Laboratory, College of Nanotechnology, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand.
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21
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Su X, Wang X, Chen H, Yu Z, Qi J, Tao S, Chu W, Song L. Enhanced Electrochemical Performance of Ti-Doping Li1.
15
Ni0
.
47
Sb0
.
38
O2
as Lithium-excess Cathode for Lithium-ion Batteries. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201700265] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xiaozhi Su
- National Synchrotron Radiation Laboratory; University of Science and Technology of China; Hefei Anhui 230029 China
| | - Xingbo Wang
- National Synchrotron Radiation Laboratory; University of Science and Technology of China; Hefei Anhui 230029 China
| | - Haiping Chen
- National Synchrotron Radiation Laboratory; University of Science and Technology of China; Hefei Anhui 230029 China
| | - Zhen Yu
- National Synchrotron Radiation Laboratory; University of Science and Technology of China; Hefei Anhui 230029 China
| | - Jiaxin Qi
- National Synchrotron Radiation Laboratory; University of Science and Technology of China; Hefei Anhui 230029 China
| | - Shi Tao
- Department of Physics and Electronic Engineering; Jiangsu Lab of Advanced Functional Materials, Changshu Institute of Technology; Changshu Jiangsu 215500 China
| | - Wangsheng Chu
- National Synchrotron Radiation Laboratory; University of Science and Technology of China; Hefei Anhui 230029 China
| | - Li Song
- National Synchrotron Radiation Laboratory; University of Science and Technology of China; Hefei Anhui 230029 China
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22
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Lai LL, Wen W, Wu JM. Room-Temperature Hydrolysis of Potassium Titanyl Oxalate and Water-Assisted Crystallization for TiO 2
with High Photocatalytic Activity. ChemistrySelect 2017. [DOI: 10.1002/slct.201700372] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Lu-Lu Lai
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering; Zhejiang University; Hangzhou 310037 P. R. China
| | - Wei Wen
- College of Mechanical and Electrical Engineering; Hainan University; Haikou 570228 P.R. China
| | - Jin-Ming Wu
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering; Zhejiang University; Hangzhou 310037 P. R. China
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23
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Tung Nguyen T, Mai XD, Duong NH. Simultaneous Synthesis of Anatase Colloidal and Multiple-branched Rutile TiO 2Nanostructures. B KOREAN CHEM SOC 2017. [DOI: 10.1002/bkcs.11101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Trong Tung Nguyen
- School of Engineering Physics; Hanoi University of Science and Technology; Hanoi 112400 Vietnam
- College of Television; Hanoi 158500 Vietnam
| | - Xuan-Dung Mai
- Department of Chemistry; Hanoi Pedagogical University No2; Vinh Phuc Vietnam
| | - Ngoc Huyen Duong
- School of Engineering Physics; Hanoi University of Science and Technology; Hanoi 112400 Vietnam
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24
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Verma R, Gangwar J, Srivastava AK. Multiphase TiO2nanostructures: a review of efficient synthesis, growth mechanism, probing capabilities, and applications in bio-safety and health. RSC Adv 2017. [DOI: 10.1039/c7ra06925a] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
This review article provides an exhaustive overview of efficient synthesis, growth mechanism and research activities of multiphase TiO2nanostructures to provide their structural, morphological, optical and biological properties co-relations.
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Affiliation(s)
- Rajni Verma
- Academy of Scientific and Innovative Research
- CSIR – National Physical Laboratory
- New Delhi – 110 012
- India
- Sophisticated and Analytical Equipments Division
| | - Jitendra Gangwar
- Sophisticated and Analytical Equipments Division
- CSIR – National Physical Laboratory
- New Delhi – 110 012
- India
- Department of Physics
| | - Avanish K. Srivastava
- Academy of Scientific and Innovative Research
- CSIR – National Physical Laboratory
- New Delhi – 110 012
- India
- Sophisticated and Analytical Equipments Division
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25
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Zhang M, Chen T, Wang Y. Insights into TiO2 polymorphs: highly selective synthesis, phase transition, and their polymorph-dependent properties. RSC Adv 2017. [DOI: 10.1039/c7ra11515f] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Herein we report the selective synthesis and two kinds of phase transformation of TiO2 polymorphs under hydrothermal conditions.
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Affiliation(s)
- Maolin Zhang
- Department of Materials and Chemical Engineering
- Bengbu University
- Bengbu 233030
- P. R. China
- Information College
| | - Tiedan Chen
- Key Laboratory of Energetic Materials of Anhui Province
- College of Chemistry and Materials Science
- Huaibei Normal University
- Huaibei 235000
- P. R. China
| | - Yunjian Wang
- Key Laboratory of Energetic Materials of Anhui Province
- College of Chemistry and Materials Science
- Huaibei Normal University
- Huaibei 235000
- P. R. China
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26
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Maluangnont T, Arsa P, Limsakul K, Juntarachairot S, Sangsan S, Gotoh K, Sooknoi T. Surface and interlayer base-characters in lepidocrocite titanate: The adsorption and intercalation of fatty acid. J SOLID STATE CHEM 2016. [DOI: 10.1016/j.jssc.2016.03.030] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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27
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Lai LL, Wen W, Wu JM. Hierarchical nanosheet-assembled yolk–shell TiO2microspheres with improved photocatalytic activity. CrystEngComm 2016. [DOI: 10.1039/c6ce00578k] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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28
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Dong W, Hu W, Berlie A, Lau K, Chen H, Withers RL, Liu Y. Colossal Dielectric Behavior of Ga+Nb Co-Doped Rutile TiO2. ACS APPLIED MATERIALS & INTERFACES 2015; 7:25321-5. [PMID: 26512874 DOI: 10.1021/acsami.5b07467] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Stimulated by the excellent colossal permittivity (CP) behavior achieved in In+Nb co-doped rutile TiO2, in this work we investigate the CP behavior of Ga and Nb co-doped rutile TiO2, i.e., (Ga(0.5)Nb(0.5))(x)Ti(1-x)O2, where Ga(3+) is from the same group as In(3+) but with a much smaller ionic radius. Colossal permittivity of up to 10(4)-10(5) with an acceptably low dielectric loss (tan δ = 0.05-0.1) over broad frequency/temperature ranges is obtained at x = 0.5% after systematic synthesis optimizations. Systematic structural, defect, and dielectric characterizations suggest that multiple polarization mechanisms exist in this system: defect dipoles at low temperature (∼10-40 K), polaronlike electron hopping/transport at higher temperatures, and a surface barrier layer capacitor effect. Together these mechanisms contribute to the overall dielectric properties, especially apparent observed CP. We believe that this work provides comprehensive guidance for the design of new CP materials.
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Affiliation(s)
| | | | - Adam Berlie
- The Bragg Institute, Australian Nuclear Science and Technology Organisation , New Illawarra Road, Lucas Heights, Sydney, New South Wales 2234, Australia
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