Results 111 to 120 of about 728 (154)
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Journal of Power Sources, 2010
Multilayered films of cobalt oxyhydroxide nanowires (CoOOHNW) and exfoliated manganese oxide nanosheet (MONS) are fabricated by potentiostatic deposition and electrostatic self-assembly on indium-tin oxide coated glass substrates. The morphology and chemical composition of these films are characterized by scanning electron microscopy (SEM) and X-ray ...
Huajun Zheng +2 more
exaly +6 more sources
Multilayered films of cobalt oxyhydroxide nanowires (CoOOHNW) and exfoliated manganese oxide nanosheet (MONS) are fabricated by potentiostatic deposition and electrostatic self-assembly on indium-tin oxide coated glass substrates. The morphology and chemical composition of these films are characterized by scanning electron microscopy (SEM) and X-ray ...
Huajun Zheng +2 more
exaly +6 more sources
Electrochimica Acta, 2015
Abstract Manganese oxyhydroxide (MnOOH)/carbon microcoil (CMC) composites are fabricated by micro-wave deposition. Then, their structures are characterized by scanning, transmission electron microscopy and X-ray diffraction. This work presents an extensive study of the pseudocapacitive performances of the as−prepared MnOOH@CMC electrodes in mild Na 2
Heliang Fan, Zheng Xing, Yabo Zhu
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Abstract Manganese oxyhydroxide (MnOOH)/carbon microcoil (CMC) composites are fabricated by micro-wave deposition. Then, their structures are characterized by scanning, transmission electron microscopy and X-ray diffraction. This work presents an extensive study of the pseudocapacitive performances of the as−prepared MnOOH@CMC electrodes in mild Na 2
Heliang Fan, Zheng Xing, Yabo Zhu
exaly +2 more sources
Journal of Power Sources, 2008
Abstract Nickel hydroxide and manganese dioxide are used in alkaline cells as positive electrode materials. Positive electrodes comprising a nickel oxyhydroxide/manganese dioxide composite, with modification by Bi2O3, deliver a combined reversible discharge capacity of 2.25e per metal atom (650 mAh g−1 metal content), which is higher than that ...
Vishnu Kamath, T N Ramesh
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Abstract Nickel hydroxide and manganese dioxide are used in alkaline cells as positive electrode materials. Positive electrodes comprising a nickel oxyhydroxide/manganese dioxide composite, with modification by Bi2O3, deliver a combined reversible discharge capacity of 2.25e per metal atom (650 mAh g−1 metal content), which is higher than that ...
Vishnu Kamath, T N Ramesh
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Electrodes of Mixed Manganese Dioxide and Oxyhydroxide
Journal of the Electrochemical Society, 1953Richard S. Johnson, W. C. Vosburgh
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Formation and Sorption Properties of Iron Oxides and Manganese Oxyhydroxide
2020Miroslaw Rucki +1 more
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Lateritic concentrations of manganese oxyhydroxides and oxides
Geologische Rundschau, 1990Latentes result from the weathering of a variety of rocks under humid tropical conditions. When developed at the expenses of Mn2+-bearing parent rocks, laterite consists of a thick mantle made up of manganese oxides and hydroxides. Two main examples are described from tropical Africa.
Nahon, Daniel, Parc, Sylvie
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Energetics of low-temperature polymorphs of manganese dioxide and oxyhydroxide
Geochimica et Cosmochimica Acta, 1997Transposed temperature drop calorimetry at 977 K was used to study the energetics of natural manganese dioxides (pyrolusite and ramsdellite) and oxyhydroxides (manganite and groutite). The structures of these minerals are composed of MnO6 octahedra which share edges and/or corners to form a framework structure containing tunnels of different size ...
Sophie Fritsch +2 more
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Manganese oxyhydroxide and oxide nanofibers for high efficiency degradation of organic pollutants
Nanotechnology, 2010Ultrathin MnOOH nanofibers were synthesized on a large scale from diluted Mn(NO(3))(2) aqueous solution at room temperature. These MnOOH nanofibers were shape-reservedly converted into Mn(3)O(4) and MnO(2) nanofibers by post-heat treatment in air at 400 °C and 600 °C for 1 h, respectively.
Xinsheng, Peng, Izumi, Ichinose
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Biofilm Hydrous Manganese Oxyhydroxides and Metal Dynamics in Acid Rock Drainage
Environmental Science & Technology, 2003Biofilms in shallow, tailings-associated acid rock drainage (ARD) accumulated metals from May to September, indicating scavenging is stable within these biological solids over seasonal time frames. Results indicate a doubling (Mn, Cr) to over a 6-fold increase (Ni, Co) in biofilm metal concentrations.
Elizabeth, Haack, Lesley A, Warren
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