Negative thermal expansion property of β-Cu2V2O7

被引：38

作者：

Wang, Hui ^{[1
]}

Yang, Mengjie ^{[1
]}

Chao, Mingju ^{[1
]}

Guo, Juan ^{[1
]}

Gao, Qilong ^{[1
]}

Jiao, Yajie ^{[1
]}

Tang, Xinbo ^{[1
]}

Liang, Erjun ^{[1
]}

机构：

[1] Zhengzhou Univ, Key Lab Mat Phys, Minist Educ, Sch Phys & Engn, Zhengzhou 450052, Henan, Peoples R China

来源：

SOLID STATE IONICS | 2019年 / 343卷

基金：

中国国家自然科学基金;

关键词：

Negative thermal expansion; beta-Cu2V2O7; Coefficient of thermal expansion; Microstructure; Thermal shrink mechanism; COPPER VANADATE; FACILE SYNTHESIS; NANOPARTICLES; CU2V2O7; FEVO4; ANODE; NANOSTRUCTURES; PYROVANADATE; PHOTOANODES; CUV2O6;

D O I：

10.1016/j.ssi.2019.115086

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

beta-Cu2V2O7 is prepared by using the solid-state method. We discuss that beta-Cu2V2O7 exhibits large negative thermal expansion property over a wide temperature range and no phase change occurs. The coefficient of thermal expansion is -20.2 x 10(-6) K-1 in temperature range of RT-673 K. The change of cell parameters is obtained from High-temperature XRD. Its phase, microstructure, thermal expansion property, and Raman spectra are analyzed in detail. The underlying mechanism of the negative thermal expansion of beta-Cu2V2O7 involves the coupling effect of the tetrahedron caused by the lateral vibration of the bridge oxygen atom and tensile effect of the tetrahedron. The partial collapse caused by the loss of oxygen atoms is also crucial in this mechanism.

引用

页数：8

共 45 条

[1]

[Anonymous], 1973, J MOL STRUCT, V15, P468, DOI [10.1016/0022-2860(73)80024-9, DOI 10.1016/0022-2860(73)80024-9]

[2] Spin wave excitations in the pyrovanadate α-Cu2V2O7 [J].

Banerjee, A. ;

Sannigrahi, J. ;

Bhowal, S. ;

Dasgupta, I. ;

Majumdar, S. ;

Walker, H. C. ;

Bhattacharyya, A. ;

Adroja, D. T. .

PHYSICAL REVIEW B, 2016, 94 (14)

[3] A comparative study of electronic, structural, and magnetic properties of α-, β-, and γ-Cu2V2O7 [J].

Bhowal, S. ;

Sannigrahi, J. ;

Majumdar, S. ;

Dasgupta, I. .

PHYSICAL REVIEW B, 2017, 95 (07)

[4] Enhanced photoactivity of visible light responsive W incorporated FeVO4 photoanode for solar water splitting [J].

Biswas, Soumya Kanti ;

Baeg, Jin-Ook .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2013, 38 (34) :14451-14457

[5] FORMATION AND PROPERTIES OF COPPER(II) DIVANADATE(V) [J].

CLARK, GM ;

GARLICK, R .

JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY, 1978, 40 (07) :1347-1349

[6] High-temperature heat capacity of oxides of the CuO-V2O5 system [J].

Denisova, L. T. ;

Belousova, N. V. ;

Denisov, V. M. ;

Galiakhmetova, N. A. .

PHYSICS OF THE SOLID STATE, 2017, 59 (06) :1270-1274

[7] VIBRATIONAL-SPECTRA OF 2 PHASES OF COPPER PYROVANADATE AND SOME SOLID-SOLUTIONS OF COPPER AND MAGNESIUM PYROVANADATE [J].

DEWAAL, D ;

HUTTER, C .

MATERIALS RESEARCH BULLETIN, 1994, 29 (08) :843-849

[8] Layered iron orthovanadate microrods as cathode for lithium ion batteries with enhanced cycle performance [J].

Fang, Zhen ;

Fan, Fan ;

Ding, Zekun ;

Wang, Chenyan ;

Long, Liuyang ;

Hao, Shenghua .

MATERIALS RESEARCH BULLETIN, 2013, 48 (04) :1737-1740

[9] Novel Schiff base ligand-assisted in-situ synthesis of Cu3V2O8 nanoparticles via a simple precipitation approach [J].

Ghiyasiyan-Arani, Maryam ;

Masjedi-Arani, Maryam ;

Salavati-Niasari, Masoud .

JOURNAL OF MOLECULAR LIQUIDS, 2016, 216 :59-66

[10] Facile synthesis, characterization and optical properties of copper vanadate nanostructures for enhanced photocatalytic activity [J].

Ghiyasiyan-Arani, Maryam ;

Masjedi-Arani, Maryam ;

Salavati-Niasari, Masoud .

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2016, 27 (05) :4871-4878

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