Premium
Hydrothermal Synthesis, Structure, and Electrochemical Properties of a Three‐dimensional Vanadium‐Nickel Phosphate (C 2 H 10 N 2 ) 4 [H 2 Ni(H 2 O) 2 (VO) 8 (OH) 4 (PO 4 ) 8 ]·H 2 O
Author(s) -
Yin FanWen,
Peng ChengDong,
Li YaSi,
Zhuang TingTing,
Zeng QingXin,
Yuan ZhanHui
Publication year - 2013
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201200449
Subject(s) - octahedron , monoclinic crystal system , crystallography , vanadium , nickel , hydrothermal synthesis , electrochemistry , hydrothermal circulation , crystal structure , non blocking i/o , molecule , materials science , protonation , space group , inorganic chemistry , chemistry , x ray crystallography , metallurgy , geology , physics , ion , diffraction , organic chemistry , electrode , optics , biochemistry , catalysis , seismology
The three‐dimensional vanadium‐nickel phosphate (C 2 H 10 N 2 ) 4 [H 2 Ni(H 2 O) 2 (VO) 8 (OH) 4 (PO 4 ) 8 ] · H 2 O ( 1 ) was prepared by hydrothermal methods and its structure and electrochemical properties were characterized. The compound crystallizes in the monoclinic system with the space group P 2 1 / n and cell parameters a = 14.392(3) Å, b = 10.122(2) Å, c = 18.305(4) Å, β = 90.34(3)°, V = 2666.7(9) Å 3 , Z = 2. The structure consists of macroanionic V–Ni–P layers constructed from VO 5 square pyramids, NiO 6 octahedra, and PO 4 3– tetrahedral groups. The layers are further connected into a 3D infinite structure through the NiO 6 octahedra and there are organic species protonated ethanediamine molecules and water molecules located, which make the structure more stable. Its electron sponge behavior was revealed via electrochemical tests.