中文摘要：

通过两步法设计合成了具有中空结构的双金属硫化物（Zn，Co）S纳米晶，并研究了其电化学性质.首先在室温下，以水为溶剂，十六烷基三甲基溴化铵为表面活性剂，利用Zn2＋，Co2＋与2-甲基咪唑的配位作用形成了ZIF-Zn，Co.然后以ZIF-Zn，Co为自牺牲模板剂，加入硫代乙酰胺，在微波辐射下快速合成了具有中空结构的（Zn，Co）S纳米晶.电化学测试结果表明，在电流密度为3 mA/cm2时，（Zn，Co）S纳米晶比电容为423.3 F/g，在电流密度为10 mA/cm2时，充放电2000次，仍能保持59%的初始电容.所制备的中空纳米结构具有较高的比表面积和较好的电化学性能，可作为超级电容器的电极材料.

英文摘要：

A simple two-step method was introduced to synthesize uniform and hollow （Zn, Co）S nanostructures. Firstly, the bimetal compound ZIF-Zn, Co（ZIF = zeolitic imidazolate frameworks） with metal ions（ gn^2＋ and Co^2＋） and ligand（2-methylimidazole） was obtained using deionized water as solvent, hexadeeyhrimethyl- ammonium bromide （CTAB） as capping agent under stirring at room temperature. Secondy, hollow （Zn, Co）S nanostructures were synthesized by selecting ZIF-Zn, Co as self-saerificial template and adding thioacetamide （TAA） as sulfate source under the mierowave-assisted heating condition. The electrochemical measurements show that the speeific capaeitanee of the as-made hollow （Zn, Co）S nanostructures was 423.3 F/g at current density of 3 mA/cm^2 and 57% capacitanee remains after 2000 cycles at a current density of 10 mA/cm^2. With the advantages of unique properties, such as high surface area and good eleetrochemical performance, the as-made hollow （Zn, Co）S nanostruetures have great potential as eleetrode material for supereapaeitors.