(BiVO4)的光吸收能力,并且加速了水氧化反应动力学,显著促进了光生空穴向半导体表面的转移,减轻了表面电荷复合.BiVO4/ZnCo-LDH光阳极在1.23V(vsRHE)偏压下,0.5mol·L^-1磷酸钾(KPi)电解液中的光电流密度达到2.85mA·cm-2,是纯BiVO4的2.59倍,且起始电位(Von)从930mV下降到270mV.BiVO4/ZnCo-LDH复合光阳极...
Herein, the ZnCo-LDH with 3D hierarchical microstructure was self-assembled with 1D nanoneedles and 2D nanosheets that in situ synthesized on Ni foam through a simple and effective strategy. The optimal sample (ZnCo-LDH-2) exhibited the ultra-high specific capacitance of 3871.2 F g at 1 A g...
While the power and energy densities of ZnCo2O4@Ni-Al LDH//AC are 3400 W kg(-1) and 27.8 Wh kg(-1). At last, an energy storage-conversion system, based on solar cell as input device and assembled asymmetric supercapacitor ZnCo2O4@Co-Al LDH//AC as output device, is integrated as ...
We used the ZnO/ZnCo 2 O 4 , obtained by calcining Zn-Co Prussian blue analogue (PBA), as the substrate and integrated Ni-Co layered double hydroxide (LDH) on its surface and calcined to obtain hierarchical NiCo 2 O 4 @ZnO/ZnCo 2 O 4 microspheres (MSs). Due to the p-n ...
(4)取ZnCo2O4@NF材料浸泡于溶液B中,然后经水热,洗涤,干燥得到目的产物.本发明复合材料中ZnCo2O4作为活性中心缩短离子扩散长度,大比表面积NiGaLDH纳米片提供大量活性位点,NiGaLDH纳米片与ZnCo2O4原位生长复合提高材料的电化学性能.与现有技术相比,本发明复合材料能量密度较高,电化学性能较好,可逆性和稳定性较好,可...
ZnCoOLDHCore–shellSynergistic effectAsymmetric supercapacitorIn this article, ZnCo2O4 nanowires deposited with two kinds of typical layered double hydroxides (Ni–Al,Co–Al LDH) are developed via scalable method. …[ Xue BaiDianxue CaoHongyu Zhang]...
Herein, NiFe-LDH (NFL) nanosheets are anchored on the ZnCo2S4 (ZCS) nanowire arrays supported on nickel foam (NF) to form core-shell hierarchical ZnCo2S4@NiFe-LDH architecture ([email protected]/NF). Resulting from the 3D core-shell architectures and synergy between ZCS and NFL, the [email...