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Thiacalix[4]arene-supported tetradecanuclear cobalt nanocage cluster as precursor to synthesize CoO/Co9S8@CN composite for supercapacitor application†
Inorganic Chemistry Frontiers ( IF 6.1 ) Pub Date : 2018-04-03 00:00:00 , DOI: 10.1039/c8qi00178b Cheng Shi 1, 2, 3, 4, 5 , Mengwei Chen 1, 2, 3, 4, 5 , Xu Han 1, 2, 3, 4, 5 , Yanfeng Bi 1, 2, 3, 4, 5 , Liangliang Huang 1, 2, 3, 4, 5 , Kun Zhou 1, 2, 3, 4, 5 , Zhiping Zheng 1, 2, 3, 4, 5
Inorganic Chemistry Frontiers ( IF 6.1 ) Pub Date : 2018-04-03 00:00:00 , DOI: 10.1039/c8qi00178b Cheng Shi 1, 2, 3, 4, 5 , Mengwei Chen 1, 2, 3, 4, 5 , Xu Han 1, 2, 3, 4, 5 , Yanfeng Bi 1, 2, 3, 4, 5 , Liangliang Huang 1, 2, 3, 4, 5 , Kun Zhou 1, 2, 3, 4, 5 , Zhiping Zheng 1, 2, 3, 4, 5
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A new tetradecanuclear cobalt cluster [Co14(TC4A)3Cl3(Tz)12(H2O)6](OH)(DMF)14(CH3OH)6(H2O)4 (Abbr. Co14, H4TC4A = p-tert-Butylthiacalix[4]arene, HTz = 1H-tetrazole) was obtained by the solvothermal reaction of CoCl2·6H2O, H4TC4A and Htz in DMF. The cluster featured the quadrilateral planar CoII4 units housing tri-capped trigonal Co12 clusters with two enclosed Co nanocages linked by Tz ligands. The uniform CoO/Co9S8@CN composite derived from direct annealing of Co14 clusters was obtained and characterized by XRD, EDS, XPS, and Raman spectra. The composite on nickel foam (CoO/Co9S8@CN/NF) was used as an electrode to fabricate supercapacitors with specific capacitances of 83.7% at 2 A g−1 and 70.0% at 5 A g−1 at 0.5 A g−1 (303.3 F g−1). The composite from Co14 precursor also shows high charge–discharge reversibility with a capacity retention of 96.3% and average columbic efficiency of 98.2% after 1000 cycles at 2.0 A g−1.
中文翻译：
硫杂杯[4]芳烃负载的四癸核钴纳米笼簇作为合成CoO / Co 9 S 8 @CN复合材料的前体，可用于超级电容器†
新的四癸核钴簇[Co 14（TC4A）3 Cl 3（Tz）12（H 2 O）6 ]（OH）（DMF）14（CH 3 OH）6（H 2 O）4（Abbr。Co 14，通过在DMF中进行CoCl 2 ·6H 2 O，H 4 TC4A和Htz的溶剂热反应，得到H 4 TC4A =对叔丁基丁基杯[4]芳烃，HTz = 1 H-四唑。该集群的特征是四边形平面Co II 4单元，其中包含三封三角Co12个簇，两个封闭的Co纳米笼通过Tz配体连接。获得了由Co 14团簇直接退火得到的均匀CoO / Co 9 S 8 @CN复合材料，并通过XRD，EDS，XPS和拉曼光谱进行了表征。镍泡沫复合材料（CoO / Co 9 S 8 @ CN / NF）用作电极来制造超级电容器，超级电容器在2 A g -1下的比电容为83.7％，在5 A g -1下的比电容在0.5 A g下为70.0％ -1（303.3 F g -1）。Co 14的复合材料前驱体在2.0 A g -1下循环1000次后，还显示出高的充放电可逆性，容量保持率为96.3％，平均哥伦布效率为98.2％。
更新日期：2018-04-03
中文翻译：
硫杂杯[4]芳烃负载的四癸核钴纳米笼簇作为合成CoO / Co 9 S 8 @CN复合材料的前体，可用于超级电容器†
新的四癸核钴簇[Co 14（TC4A）3 Cl 3（Tz）12（H 2 O）6 ]（OH）（DMF）14（CH 3 OH）6（H 2 O）4（Abbr。Co 14，通过在DMF中进行CoCl 2 ·6H 2 O，H 4 TC4A和Htz的溶剂热反应，得到H 4 TC4A =对叔丁基丁基杯[4]芳烃，HTz = 1 H-四唑。该集群的特征是四边形平面Co II 4单元，其中包含三封三角Co12个簇，两个封闭的Co纳米笼通过Tz配体连接。获得了由Co 14团簇直接退火得到的均匀CoO / Co 9 S 8 @CN复合材料，并通过XRD，EDS，XPS和拉曼光谱进行了表征。镍泡沫复合材料（CoO / Co 9 S 8 @ CN / NF）用作电极来制造超级电容器，超级电容器在2 A g -1下的比电容为83.7％，在5 A g -1下的比电容在0.5 A g下为70.0％ -1（303.3 F g -1）。Co 14的复合材料前驱体在2.0 A g -1下循环1000次后，还显示出高的充放电可逆性，容量保持率为96.3％，平均哥伦布效率为98.2％。
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