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Deng YL, Chen AN, Li W, Xin SS, Pan CY. Exploration of the oxygen reduction reaction activity of four transition metal borates: synthesis, structure and characterization. Dalton Trans 2023; 52:4382-4388. [PMID: 36912361 DOI: 10.1039/d3dt00196b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Abstract
Four new transition metal borates, [Co(1-MI)2]·B5O7(OH)3 (1, 1-MI = 1-methylimidazole), Co2(PZ)8(SO4)2·2H3BO3 (2, PZ = pyrazole), K7{(BO3)Co[B12O18(OH)6]}·H2O (3) and K2{[Ni(PY)2]2·[(C4H2O6)2B]}2 (4, PY = pyridine), have been successfully synthesized by a mild method. Their structures were determined by X-ray single crystal diffraction. These compounds were further characterized by FTIR, PXRD and UV-vis-NIR. It is worth noting that the catalytic properties of catalysts based on these four borates were explored, and that organically templated borate 1- and 2-based catalysts showed better ORR catalytic performance compared to 3- and 4-based catalysts. This may be caused by the supramolecular skeletons of 1 and 2 providing sufficient space and porosity.
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Affiliation(s)
- Yan-Ling Deng
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, Guangdong 510006, China.
| | - An-Na Chen
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, Guangdong 510006, China.
| | - Wei Li
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, Guangdong 510006, China.
| | - Shu-Sheng Xin
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, Guangdong 510006, China.
| | - Chun-Yang Pan
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, Guangdong 510006, China.
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Ding J, Kuang M, Liu S, Zhang Z, Huang K, Huo J, Ni H, Zhang Q, Li J. Sensitization of Mn 2+ luminescence via efficient energy transfer to suit the application of high color rendering WLEDs. Dalton Trans 2022; 51:9501-9510. [DOI: 10.1039/d2dt01152b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Developing novel luminescent materials with ideal properties is an endless project, urged by growing requirements of advances in energy saving, healthy lighting and environmental friendliness. Herein, a series of ScCaOBO3:Ce3+,Mn2+...
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Kosyl KM, Paszkowicz W, Minikayev R, Shekhovtsov AN, Kosmyna MB, Chrunik M, Fitch AN. Site-occupancy scheme in disordered Ca 3RE 2(BO 3) 4: a dependence on rare-earth (RE) ionic radius. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2021; 77:339-346. [PMID: 34096515 DOI: 10.1107/s2052520621002328] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 03/01/2021] [Indexed: 06/12/2023]
Abstract
The structures of polycrystalline Ca3RE2(BO3)4 (RE = La, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Y; space group Pnma) orthoborates were determined using powder X-ray diffraction. Trends in the unit-cell dimensions and yet unreported trends in other structural properties (interatomic distances and the fractional occupation of three Ca/RE sites) for these compounds are demonstrated as a function of RE ionic radius. The unit-cell volume and a unit-cell parameter present a linear dependence, while the b and c unit-cell parameters change in a nonlinear manner. For the whole series, the RE atoms are present at all three cationic sites (labelled as M1, M2 and M3), but the fractional occupancies depend on the RE ionic radius. The small rare-earth atoms tend to enter mainly the M3 site; for the larger rare earths, the occupancy of this site decreases sharply. The occupancy of the M1 site by RE atoms is around 0.5 and tends to increase with increasing RE ionic radius. The M2 site is the least preferentially occupied by RE ions, but the occupancy discernibly increases with rising radius as well. These findings are assembled with properties of isostructural strontium and barium borates, allowing prediction of occupancy schemes for not yet investigated compounds from the A3RE2(BO3)4 (A = Ca, Ba, Sr).
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Affiliation(s)
- Katarzyna M Kosyl
- Institute of Physics, Polish Academy of Sciences, Aleja Lotnikow 32/46, Warsaw PL-02668, Poland
| | - Wojciech Paszkowicz
- Institute of Physics, Polish Academy of Sciences, Aleja Lotnikow 32/46, Warsaw PL-02668, Poland
| | - Roman Minikayev
- Institute of Physics, Polish Academy of Sciences, Aleja Lotnikow 32/46, Warsaw PL-02668, Poland
| | - Alexey N Shekhovtsov
- Institute for Single Crystals, NAS of Ukraine, Nauky Avenue 60, Kharkov 61001, Ukraine
| | - Miron B Kosmyna
- Institute for Single Crystals, NAS of Ukraine, Nauky Avenue 60, Kharkov 61001, Ukraine
| | - Maciej Chrunik
- Institute of Applied Physics, Military University of Technology, Gen. S. Kaliskiego 2, Warsaw 00-908, Poland
| | - Andrew N Fitch
- European Synchrotron Radiation Facility, 71 avenue des Martyrs, Grenoble 38000, France
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Kuang M, Li J, Zhang J, Ding J, Zhang Z, Huang K, Yang N, Zhang Z, Yang M, Ni H. A novel Dy 3+-activated single-phase white light-emitting phosphor for solid-state lighting. NEW J CHEM 2021. [DOI: 10.1039/d1nj04570a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The doping of Dy3+ in the SCB host is capable of producing blue, yellow and red emissions, and therefore, SCB:Dy3+ can serve as a single-phase white-light-emitting phosphor for solid state lighting.
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Affiliation(s)
- Meng Kuang
- Guangdong Province Key Laboratory of Rare Earth Development and Application, Institute of Rare Metals, Guangdong Academy of Sciences, Guangzhou 510651, P. R. China
| | - Junhao Li
- Guangdong Province Key Laboratory of Rare Earth Development and Application, Institute of Rare Metals, Guangdong Academy of Sciences, Guangzhou 510651, P. R. China
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Jinjun Zhang
- State Key Laboratory of Green Building Materials, China Building Materials Academy, Beijing 100024, P. R. China
| | - Jianhong Ding
- Guangdong Province Key Laboratory of Rare Earth Development and Application, Institute of Rare Metals, Guangdong Academy of Sciences, Guangzhou 510651, P. R. China
| | - Ziwang Zhang
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Kangrong Huang
- Department of Obstetrical, Maternal and Child Health Hospital of Longgang District of Shenzhen, Shenzhen 518172, P. R. China
| | - Nan Yang
- School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Ziheng Zhang
- Materials and Engineering Science Program, Guangdong Technion-Israel Institute of Technology, Shantou 515063, P. R. China
| | - Mingming Yang
- Guangdong Province Key Laboratory of Rare Earth Development and Application, Institute of Rare Metals, Guangdong Academy of Sciences, Guangzhou 510651, P. R. China
| | - Haiyong Ni
- Guangdong Province Key Laboratory of Rare Earth Development and Application, Institute of Rare Metals, Guangdong Academy of Sciences, Guangzhou 510651, P. R. China
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Synthesis and characterization of three new rare-earth orthoborates: Ba 2MgY 2(BO 3) 4, Ba 2CdY 2(BO 3) 4, and Ba 2CdSc(BO 3) 3. Dalton Trans 2020; 49:10874-10879. [DOI: 10.1039/d0dt01799j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three rare-earth orthoborates Ba2MgY2(BO3)4, Ba2CdY2(BO3)4, and Ba2CdSc(BO3)3 were synthesized via a high-temperature solution method and their structures were determined by single crystal X-ray diffraction for the first time.
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Xu H, Liu R, Zhang S, Deng M, Han K, Xu B, Ouyang C, Zhong S. Scandium Molybdate Microstructures with Tunable Phase and Morphology: Microwave Synthesis, Theoretical Calculations, and Photoluminescence Properties. Inorg Chem 2019; 58:2491-2500. [PMID: 30629430 DOI: 10.1021/acs.inorgchem.8b03056] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In this paper, scandium molybdate microstructures have been prepared from solution via a microwave heating method. By controlling the experimental parameters such as molar ratio of reagent and reaction time, scandium molybdates with tunable phase and diverse morphologies including snowflakes, microflowers, microsheets, and branched spindles were obtained. The density of states and surface energies of Sc2Mo3O12 were primarily studied from first-principles calculations. An indirect band gap of 3.56 eV was observed for crystalline Sc2Mo3O12, and the surface energies of various facets were determined to be 0.27-0.91 J/m2. The influence of n(Sc3+): n(Mo7O246-) (short for Sc/Mo) molar ratio was systematically investigated and well-characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and UV-vis absorption spectroscopy (UV-vis). Results indicate that the Sc/Mo molar ratio has a great effect on the phase and morphology. Diffuse reflection spectra (DRS) revealed the Egap can be readily tuned from 3.69 to 4.16 eV, which is in accordance with the theoretical result. The photoluminescence (PL) properties of Eu3+-doped Sc2Mo3O12 were discussed. This facile synthesis strategy could be extended to the synthesis of other molybdates.
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Ruan TT, Hu CL, Feng JH, Mao FF, Mao JG. Three Cadmium Tartratoborates with Good Second Harmonic Generation (SHG) or Luminescence Performances. Inorg Chem 2019; 58:594-602. [PMID: 30525545 DOI: 10.1021/acs.inorgchem.8b02772] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Three new cadmium(II) tartratoborates, namely, Cd5[(C4H2O6)2B]2(H2O)8·3H2O (1), K2Cd4[(C4H2O6)2B]2(H2O)2 (2), and Li0.92K1.08Cd1.5[(C4H2O6)2B](H2O)2 (3), have been successfully synthesized by the hydrothermal method. Compounds 1-3 belong to centric C2/ c, acentric Pc, and the polar C2, respectively. Through based on the same hybrid borate-tartrate [(C4H2O6)2B]5- anions, they exhibit different structures. The [(C4H2O6)2B]5- anion is composed of two tartrate anions and a B(OH)4- unit. Compound 1 features a novel 3D network formed by 2D {Cd3[(C4H2O6)2B]2(H2O)2}4- anionic layers and [Cd2O10] dimers, forming tunnels of large 14-MRs which are filled by the non-coordination water molecules. Compound 2 has a characteristic 3D network based on {Cd2[(C4H2O6)2B]}- units interlinked via carboxylate groups, forming tunnels of 11-MRs, half of which stuffed with the K+ ions. Compound 3 features 2D {Cd4[(C4H2O6)4B]}3+ layers which are separated by K/Li ions. Luminescent studies suggest that they emit blue light. Compounds 2 and 3 display phase-matchable second harmonic generation signs of about 3.2× and 1.5× KH2PO4, respectively.
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Affiliation(s)
- Ting-Ting Ruan
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter , Chinese Academy of Sciences , Fuzhou 350002 , P. R. China
| | - Chun-Li Hu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter , Chinese Academy of Sciences , Fuzhou 350002 , P. R. China
| | - Jiang-He Feng
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter , Chinese Academy of Sciences , Fuzhou 350002 , P. R. China
| | - Fei-Fei Mao
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter , Chinese Academy of Sciences , Fuzhou 350002 , P. R. China
| | - Jiang-Gao Mao
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter , Chinese Academy of Sciences , Fuzhou 350002 , P. R. China
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Han SJ, Wu HP, Li H, Yang ZH, Pan SL, Yu HH. Ba 3B 10O 17Br 2: a new barium borate halide with B–O layered structure. Dalton Trans 2018; 47:16418-16421. [DOI: 10.1039/c8dt04052d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new barium borate halide, Ba3B10O17Br2, has been obtained, and is the first barium borate halide with a B–O layered structure.
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Affiliation(s)
- S. J. Han
- CAS Key Laboratory of Functional Materials and Devices for Special Environments
- Xinjiang Technical Institute of Physics & Chemistry
- CAS; Xinjiang Key Laboratory of Electronic Information Materials and Devices
- Urumqi 830011
- China
| | - H. P. Wu
- CAS Key Laboratory of Functional Materials and Devices for Special Environments
- Xinjiang Technical Institute of Physics & Chemistry
- CAS; Xinjiang Key Laboratory of Electronic Information Materials and Devices
- Urumqi 830011
- China
| | - H. Li
- CAS Key Laboratory of Functional Materials and Devices for Special Environments
- Xinjiang Technical Institute of Physics & Chemistry
- CAS; Xinjiang Key Laboratory of Electronic Information Materials and Devices
- Urumqi 830011
- China
| | - Z. H. Yang
- CAS Key Laboratory of Functional Materials and Devices for Special Environments
- Xinjiang Technical Institute of Physics & Chemistry
- CAS; Xinjiang Key Laboratory of Electronic Information Materials and Devices
- Urumqi 830011
- China
| | - S. L. Pan
- CAS Key Laboratory of Functional Materials and Devices for Special Environments
- Xinjiang Technical Institute of Physics & Chemistry
- CAS; Xinjiang Key Laboratory of Electronic Information Materials and Devices
- Urumqi 830011
- China
| | - H. H. Yu
- CAS Key Laboratory of Functional Materials and Devices for Special Environments
- Xinjiang Technical Institute of Physics & Chemistry
- CAS; Xinjiang Key Laboratory of Electronic Information Materials and Devices
- Urumqi 830011
- China
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