[CuCN] crystal material and preparation method thereof
A technology of crystal materials and unit cell parameters, applied in the fields of polycrystalline material growth, crystal growth, chemical instruments and methods, etc., can solve the problems of low yield, complex preparation process, and difficulty in directional design of coordination polymer structures.
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specific Embodiment approach 1
[0019] Specific embodiment one: the chemical formula of a kind of [CuCN] crystal material of this embodiment is {[Cu(CN) 2 (2,2′-bipy)][Cu 2 (CN)Cl]} n , where 2,2′-bipy is 2,2′-bipyridine, the crystal system is monoclinic, the space group is C2 / c, and the unit cell parameters are α=90°, β=90°, γ=90°, Z=2.
[0020] The beneficial effect of this embodiment is: the target [CuCN] coordination polymer crystal material is oriented synthesized by a one-step hydrothermal method, and the product is unique (XRD spectrum shows that the coordination polymer has obvious absorption peaks on the corresponding crystal planes. And intensity is bigger, without miscellaneous peak, shows that material has better crystallinity and purity), productive rate is higher (calculated by nickel, productive rate is 65%), and the cyclic voltammetry curve of polymer appears near 50mV Obvious Cu redox process, Cu II / Cu 0 The electrochemical behavior is attributed to Cu under hydrothermal conditions I...
specific Embodiment approach 2
[0021] Specific embodiment two: the preparation method of a kind of [CuCN] crystal material described in this embodiment is carried out according to the following steps:
[0022] 1. Under the conditions of room temperature and stirring speed of 60 to 100 rpm, CuCl 2 2H 2 O was added to the solvent and stirred until CuCl 2 2H 2 O dissolves, and then K is added 4 Fe(CN) 6 ·3H 2 O stirred and dissolved, and then continued to stir for 40-60 minutes to obtain a reaction system. Under the conditions of room temperature and a stirring speed of 60 rpm to 100 rpm, add KF to the reaction system and stir to dissolve, then add 2,2' - the bipyridine is stirred and mixed evenly, and finally adjusted to a pH of 5.5-5.7 and mixed evenly to obtain a reaction liquid;
[0023] The K 4 Fe(CN) 6 ·3H 2 O and CuCl 2 2H 2 The molar ratio of O is 1:(2.15~2.29);
[0024] The K 4 Fe(CN) 6 ·3H 2 The molar ratio of O to KF is 1:(1.56~1.70);
[0025] The K 4 Fe(CN) 6 ·3H 2 The molar rati...
specific Embodiment approach 3
[0029] Embodiment 3: The difference between this embodiment and Embodiment 2 is that the solvent described in step 1 is distilled water. Other steps are the same as in the second embodiment.
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