Facile synthesis and electrochemical characterization of hierarchical α-MnO2 spheres

Wang, Hong‐En; Lu, Zhouguang; Qian, Dong; Fang, Shunping; Zhang, Jianfeng

doi:10.1016/j.jallcom.2007.11.041

Cited by 36 publications

(27 citation statements)

References 32 publications

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“…1) indicated that the sample exhibited all seven peaks ((110), (200), (310), (211), (301), (411) and (521)) that are attributable to α-MnO 2 (JCPDS 44-0141). 27 The average crystal size of α-MnO 2 was determined to be 24.8 nm using the Scherrer formula with the (110) peak. 25 Using the BET method, the specific surface area of β-MnO 2 was determined to be 61.…”

Section: Properties Of α-Mnomentioning

confidence: 99%

The oxidative degradation of sulfadiazine at the interface of α‐MnO₂ and water

Dong

Zhang

et al. 2009

J of Chemical Tech & Biotech

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Section: Properties Of α-Mnomentioning

confidence: 99%

The oxidative degradation of sulfadiazine at the interface of α‐MnO₂ and water

Dong

Zhang

et al. 2009

J of Chemical Tech & Biotech

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“…Recently, much attention has focused on the synthesis of 1D MnO 2 nanostructures because of its promising applications in catalysis, rechargeable batteries, ion sieves and supercapacitors [24][25][26][27][28][29][30]. Up to now, various methods including sol-gel route, wet chemical method, template-assisted method and hydrothermal route have been developed to synthesise 1-D MnO 2 nanostructures [31][32][33][34][35][36]. Among these methods, the hydrothermal route is the most useful and efficient because the method can control the nanostructures by choosing the reaction temperature, concentration and time.…”

Section: Introductionmentioning

confidence: 99%

Facile synthesis and magnetic properties of manganese dioxide nanowires

Du¹,

Zhang²

2012

Journal of Experimental Nanoscience

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A large number of MnO 2 nanowires were fabricated by a facile hydrothermal method. The nanowires have a tetragonal pyrolusite structure and a smooth surface. The common bulk defects such as dislocations, twinnings and stacking faults are not detected by HRTEM measurement. The magnetisation dependence of temperature indicates that the magnetisation, linearly and monotonically, increases with decreasing temperature in the range 300-80 K, revealing the paramagnetic properties of the nanowires. The first discharge capacity reaches 223.5 mA h g À1 , and the value of capacity steadily decreases during the following cycles, down to an acceptable 122.3 mA h g À1 after 25 cycles. The high surface ratio of nanowires is the main reason for the excellent discharge cycle property of the MnO 2 nanowires.

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“…In particular, MnO 2 with the new shape has attracted interest from researchers owing to its potential applications and novel physical and chemical properties. Generally, urchin-like ␣-MnO 2 is synthesized with the addition of a template, surfactant, or any other additives [12][13][14][15]. In previous work, single-crystal ␣-MnO 2 nanorods were prepared in H 2 SO 4 solution by adding KMnO 4 at the temperatures of 70-95 • C [16].…”

Section: Introductionmentioning

confidence: 99%