Cobalt(II) containing liquid metal salts for electrodeposition of cobalt and electrochemical nanoparticle formation

Sniekers Jeroen; Geysens Pieter; Malaquias Joao C.; Hoogerstraete Tom Vander; Van Meervelt Luc; Fransaer Jan; Binnemans Koen

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Cobalt(II) containing liquid metal salts for electrodeposition of cobalt and electrochemical nanoparticle formation

机译：含有钴和电化学纳米粒子形成电沉积的含液金属盐的钴（II）

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Cobalt(II)-containing liquid metal salts (LMS) with N-alkylimidazole ligands and bis(trifluoromethanesulfonyl) imide (bistriflimide, Tf2N-) or methanesulfonate (mesylate, OMs-) anions were synthesized and characterized. The chain length of the alkyl side chain on the imidazole ligand was varied. All compounds were characterized using CHN analysis, DSC and FTIR measurements. Single-crystal X-ray diffraction measurements were performed on six of the compounds for which single crystals of good quality could be obtained. All cobalt(II) centers are six-coordinate with the N-alkylimidazole ligands in an octahedral configuration and the anions are non-coordinating. The same coordination environment was observed by EXAFS measurements on cobalt(II) liquid metal salts in the liquid state. The electrochemical properties of the compounds with the lowest melting temperatures were investigated using cyclic voltammetry. It was found that part of the current was consumed in the electrodeposition of cobalt, whereas the other part of the current was consumed in the electrochemical formation of cobalt(0) nanoparticles.

机译：含有N-烷基咪唑配体和双（三氟甲磺酰基）酰亚胺（亲本质基金，TF2N-）或甲磺酸盐（甲磺酸盐，OMS-）阴离子的含液金属盐（LMS）。和表征。变化亚咪唑配体上的烷基侧链的链长。使用CHN分析，DSC和FTIR测量来表征所有化合物。对六个化合物进行单晶X射线衍射测量，可以获得良好质量的单个晶体的化合物。所有钴（II）中心六个与八面体构造中的N-烷基咪唑配体六坐标，阴离子是非配位。 Exafs测量在液态中的钴（II）液态金属盐上的EXAFS测量观察到相同的协调环境。使用环状伏安法研究了具有最低熔化温度的化合物的电化学性质。结果发现，部分电流在钴的电沉积中消耗，而电流的另一部分在钴（0）纳米粒子的电化学形成中消耗。

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《Dalton transactions: An international journal of inorganic chemistry》 |2017年第38期|共11页
作者
Sniekers Jeroen; Geysens Pieter; Malaquias Joao C.; Hoogerstraete Tom Vander; Van Meervelt Luc; Fransaer Jan; Binnemans Koen;
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Katholieke Univ Leuven Dept Chem Celestijnenlaan 200F POB 2404 B-3001 Heverlee Belgium;

Katholieke Univ Leuven Dept Chem Celestijnenlaan 200F POB 2404 B-3001 Heverlee Belgium;

Katholieke Univ Leuven Dept Mat Engn Kasteelpk Arenberg 44 POB 2450 B-3001 Heverlee Belgium;

Katholieke Univ Leuven Dept Chem Celestijnenlaan 200F POB 2404 B-3001 Heverlee Belgium;

Katholieke Univ Leuven Dept Chem Celestijnenlaan 200F POB 2404 B-3001 Heverlee Belgium;

Katholieke Univ Leuven Dept Mat Engn Kasteelpk Arenberg 44 POB 2450 B-3001 Heverlee Belgium;

Katholieke Univ Leuven Dept Chem Celestijnenlaan 200F POB 2404 B-3001 Heverlee Belgium;

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正文语种 eng
中图分类化学;无机化学;
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机译：液态钴盐作为高密度电沉积钴和钴纳米颗粒的电化学合成的非挥发性电解质

Cobalt(II) containing liquid metal salts for electrodeposition of cobalt and electrochemical nanoparticle formation

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