本发明属于电化学超级电容器领域,尤其涉及MnCo‑LDH/GO/NF复合电极材料及其制备方法和在超级电容器中的应用。制备方法如下:将GO加入去离子水中,在搅拌下加入Mn(NO3)2、Co(NO3)2、NH4F和尿素中混合得到反应溶液;然后将得到的溶液转移到聚四氟乙烯内胆高压反应釜中,并将泡沫镍基材NF浸入其中,进行反应,冷却至室温;...
Co,Mn-LDH@NF hybridThree dimensional net structureHigh specific capacitanceSuperior cycling stabilityTo solve the agglomeration of layered double hydroxides (LDH) for improving their supercapacitor performances, Co, Mn-LDH nanoneedle arrays grown on Ni foam (Co, Mn-LDH@NF hybrid) was fabricated via ...
Defective MnCo-LDH nanoflowers is obtained by simple hydrothermal method.The MnCo-LDH shows well 3D nanostructure and bimetallic defective vacancy.The activity of MnCo-LDH is excellent as HER and OER bifunctional catalysts.The MnCo-LDH show high catalytic activity and stability in potential applicati...
Therefore, NCS with good conductivity and high electrochemical activity is a prospective candidate as second phase material incorporating with MnCo-LDH to improve their electrochemical performance. Moreover, carbon-based materials have been commonly utilized as hybrid electrode material for SCs. Among the...
3.根据权利要求1所述的碳纳米管泡沫负载核壳型Ni-Co LDH@Ni-Mn LDH的制备方法,其特征在于,步骤(b)所述沉积反应是指,90 °C沉积反应20-60 min。 4.如权利要求1-3任一所述碳纳米管泡沫负载核壳型Ni-Co LDH@Ni-Mn LDH的制备方法,其特征在于,所述碳纳米管泡沫是通过如下步骤获得的:将聚氨酯泡沫浸没于酸...
要点二:MnCO3为复合材料提供了相当可观的电容; 对比LDH/MXene和LDH/MnCO3/MXene的CV曲线,LDH/MnCO3/MXene具有更大的CV面积,同时通过GCD曲线计算得到两种材料的质量电容,LDH/MnCO3/MXene的质量电容为LDH/MXene的3.88倍,这归因...
Herein, composite material cotton carbon/Co-Ni-Mn LDH (CCO/CNM) combining the cotton carbon and the metal organic framework (ZIF-67) material is successfully prepared depending on solvothermal method and calcination. Simultaneously, the impact of load upon the sacrifice template CCO/ZIF-67 and ele...
Here, the hybrid structure of MnCo-layered double hydroxide onto reduced graphene oxide (MC-LDH/rGO) and NiCo2S4 (NCS) is prepared via a two-step method. The electrochemical performance of the composites were optimized systematically by the growth/deposition cycles of the NCS material. When the...
Co, Mn-LDH nanoneedle arrays grown on Ni foam for high performance supercapacitorsdoi:10.1016/j.apsusc.2018.10.276Dongqin SuZehua TangJinfeng XieZhengxu BianJunhao ZhangDandan YangDi ZhangJincheng WangYi LiuAihua YuanNorth-Holland
本发明公开一种核壳型NiCo LDH@NiMn LDH/NSCS的制备方法及其应用,其具体步骤为:(a)制备碳纳米管溶液;(b)通过包覆碳管及火烧过程制备氮掺杂碳纳米管泡沫(NSCS);(c)将NSCS放入氯化镍,氯化钴,尿素,蒸馏水,甲醇的混合溶液中,水热反应并烘干后,得到NiCo LDH/NSCS;(d)将NiCo LDH/NSCS置入90℃的氯化锰,氯化镍,...