Manganese nanowires

The ionic liquid l-n-butyl-3-methylimidazolium tetrafluorob-orate has been used to synthesize nanoneedlcs and nanorods of manganese dioxide (MnO,).192 Crystalline silica nanowires were prepared by Deepalc et al.m by a carbothermal procedure. Crystalline SiO, nanowires have also been prepared by a low-temperature iron assisted hydrothermal procedure.1,5... 

The influence of the surfactant on the formation of manganese (oxyhydr)oxide nanowires/rods was also investigated. As shown in Fig. 5, the product obtained after hydrothermal treatment of commercial y-Mn02 in a 8% solution of... 

Facile methods have been developed to synthesize single-crystalline manganese oxide and oxyhydroxide nanowires/nanorods. Pure phase of single-crystalline y-MnOOH nanowires/nanorods have been synthesized by hydrothermal transformation of granular y- or p-MnOa in water at 180 - 200 °C, and pure P-MnOa and a-MnaOa nanowires/nanorods formed after subsequent calcination at... 

Zhang, Y. X., M. Kuang, X. D. Hao et al. 2014. Rational design of hierarchically porous birnessite-type manganese dioxides nanosheets on different one-dimensional titania-based nanowires for high performance supercapacitors. Journal of Power Sources 270 675-683. 

Perera, S. D., M. Rudolph, R. G. Mariano et al. 2013. Manganese oxide nanorod-graphene/vanadium oxide nanowire-graphene binder-free paper electrodes for metal oxide hybrid supercapacitors. Nano Energy 2 966-975. 

During the past few years, a significant effort has been directed towards the synthesis of low-dimensional Mn02 nanostructures with controlled morphologies. For instance, a-, P-, y-, 6-, k-, and E-Mn02 polymorphs were synthesized in the shape of nanorods [141-145], nanowires [144, 146-148], nanofibers [149, 150], nanoneedles [151, 152], and nanotubes [153, 154]. Lately, the attention of a considerable number of chemists and materials scientists has also been oriented towards the self-assembly of 1-D nanostructured manganese dioxides into 2- and 3-D ordered microstructures [144, 155-158]. 

Within the following sections we will discuss fundamental aspects of nanoparticle processing including the most important steps of characterization, particle formation, stabilization and post processing to end up with some general conclusions for a future process design. As model materials we use technically relevant semiconductor nanoparticles, so-called quantum dots (QDs) with direct band gap (ZnO, manganese doped ZnS and PbS(e)) and silver nanowires which have been proven to be excellent transparent electrodes for thin film solar cells [27]. 

Ho, C.-L. Wu, M.-S. Manganese oxide nanowires grown on ordered macroporous conductive nickel scaffold for high-performance supercapacitors. J. Phys. Chem. C 2011,115, 22068-22074. 

Yan, W. Ayvazian, T. Kim, J. et al. M. Mesoporous manganese oxide nanowires for high-capacity, high-rate, hybrid electrical energy storage. ACS Nano 2011, 5, 8275-8287. 

Pei Z, Ma X, Ding P, Zhang W, Luo Z, li G (2010) Study of a QCM dimethyl methylphospho-nate sensor based on a ZnO-modified nanowire-structured manganese dioxide film. Sensors 10(9) 8275-8290. doi 10.3390/s 100908275... 

Mele C, Catalano M, Taurino A, Bozzini B (2013) Electrochemical fabrication of ntmoporous gold-supported manganese oxide nanowires based on electrodeposition from eutectic urea/cho-line chloride ionic liquid. Electrochim Acta 87 918-924. doi 10.1016/j.electacta.2012.09.038... 

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