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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >One-pot synthesis of ZnS nanowires/Cu7S4 nanoparticles/reduced graphene oxide nanocomposites for supercapacitor and photocatalysis applications
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One-pot synthesis of ZnS nanowires/Cu7S4 nanoparticles/reduced graphene oxide nanocomposites for supercapacitor and photocatalysis applications

机译：ZnS纳米线/ Cu7S4纳米颗粒的一锅合成/超级电容器和光催化应用的石墨烯纳米复合材料

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摘要

The zinc sulfide (ZnS) nanowires (NWs)/analite (Cu7S4) nanoparticles (NPs)/reduced graphene oxide (rGO) nanocomposites were fabricated for the first time using a one-pot hydrothermal method, and the resulting nanocomposites can be used as a photocatalyst and the electrode for a supercapacitor. The ZnS NWs/Cu7S4 NPs/rGO nanocomposites showed excellent electrochemical performance with the maximum specific capacitance of 1114 F g(-1) at a current density of 1 A g(-1), good cycling stability with capacitance retention of 88% after 5000 cycles and low charge transfer resistance of 0.011 . The ZnS NWs/Cu7S4 NPs/rGO nanocomposites were used as the positive electrode together with active carbon as the negative electrode for the fabrication of an asymmetric supercapacitor device, which exhibited a maximum energy density of 22 W h kg(-1) as well as a power density up to 595 W kg(-1) with capacitance retention of 77% after 5000 cycles. Furthermore, ZnS NWs/Cu7S4 NPs/rGO nanocomposites exhibited superior photocatalytic activity under ultraviolet and visible light irradiation because of the high surface area, small interface transfer resistance and efficient separation of photogenerated electrons and holes caused by the synergistic effect between ZnS NWs, Cu7S4 NPs and rGO.
机译：使用单锅水热法制造硫化锌硫化锌（ZnS）/ aniCAILS（NWS）/ anitite（CU7S4）纳米颗粒（NPS）/还原氧化物（RGO）纳米复合材料，并将所得的纳米复合材料用作一个光催化剂和超级电容器的电极。 ZnS NWS / CU7S4 NPS / RGO纳米复合材料显示出优异的电化学性能，在电流密度为1 A G（-1），良好的循环稳定性，电容保留在5000后的电容保留良好的最大电化学性能循环和低电荷转移电阻为0.011。使用ZnS NWS / Cu7S4 NPS / Rgo纳米复合材料用作正极与活性炭一起作为用于制造不对称超级电容器装置的负电极，其表现出22 W H kg（-1）的最大能量密度以及功率密度高达595 W kg（-1），电容保留在5000次循环后77％。此外，由于高表面积，ZNS NWS之间的协同效应，CU7S4 NPS，CU7S4 NPS的协同效应引起的光生电子和孔的高界面传递电阻和孔的高界面传递电阻和高效分离，ZnS NWS / Cu7S4 NPS / Rgo纳米复合材料在紫外线和可见光辐照下表现出优异的光催化活性。和rgo。

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