delta-MnO2 nanofibre/SWCNTs hybrid film flexible supercapacitors have great potential in future portable and wearable electronic applications due to their excellent flexibility, high energy density, good cycle life and coulombic efficiency.Wang, Lu
While alpha-MnO2 has been intensively studied for zinc batteries, delta-MnO2 is usually believed to be more suitable for ion storage with its layered structure. Unfortunately, the extraordinary Zn ion storage performance that delta-MnO2 should exhibit has not yet been achieved due to the frustrating...
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(3)KMnO4>MnO2>O2(4)2KMnO4+16HCl(浓)=2KCl+2MnCl2+5Cl2↑+8H2O 【详解】(1)反应②为KClO3+6HCl(浓)=3Cl2↑+KCl+3H2O,因此反应的离子方程式为ClO-3+6H++5Cl-=3Cl2↑+3H2O。(2)反应①4HCl(浓)+MnO2\underset{\raise0.3em\hbox{−}}{ }\!\!\Delta\!\!\text{ }––––––––...
The specific capacitance of delta-MnO2 at 1 mV.s(-1) was 4.8 times higher than that of alpha-MnO2 (211 vs. 44 F.g(-1)) because of the layered structure of delta-MnO2 that provided better availability of the electrode surface for electrolyte ions during charge-discharge cycles and ...
beta-MnO2 and delta-MnO2 submicrospheres with different crystallographic forms were parallelly synthesized via a facile way using MnCO3 submicrospheres as manganese source and template. Fine observation enclosed that the beta-MnO2 and delta-MnO2 submicrospheres were composed of nanoparticles and ...
Compared with the soils without delta-MnO2, high contents of Cr(VI) were generated in silt (22.30 mg/kg) and sandy soil (70.95 mg/kg) with 2 wt% delta-MnO2 after the addition of Cr(III) wastewater within 2 days, and the Cr(VI) contents were above 1 mg/kg in these two soils ...
In addition, the characterization analyses showed that the interfacial effect derived from the interaction between Mn2O3 and delta-MnO2 can increase the amount of Mn4+, and surface lattice oxygen, as well as optimize the low-temperature reduction ability, which was the crucial reason for the ...
Ultrathin delta-MnO2 nanoribbons (delta-MnO2 UTNRs) with the thickness of 1-1.5 nm and aspect ratio of 200-600 was synthesized, which produced abundant active oxygen species such as hydroxyl radicals and superoxide at room temperature without light irradiation. Accordingly, as-prepared delta-MnO2 ...
Zhang, Direct Growth of Flower-Like δ-MnO2 on Three-Dimensional Graphene for High-Performance Rechargeable Li- O2 Batteries, Adv. Energy Mater., 4 (2014) 1301960-n/a.Liu, S. Y.; Zhu, Y. G.; Xie, J.; Huo, Y.; Yang, H. Y.; Zhu, T. J.; Cao, G. S.; Zhao, X. B.; ...