Infrared-transmission spectra and hydrogen content of hydrogenated amorphous silicon

Hu, Yuehi; Chen, Guanghua; Yue-Ying, Wu; Song, Yin; Gao, Zhuo; Wang, Qing; Song, Xuemei; Deng, Jinxiang

doi:10.1360/03yw0291

Sci China Ser G

2004

DOI: 10.1360/03yw0291

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Infrared-transmission spectra and hydrogen content of hydrogenated amorphous silicon

Yuehi Hu

Guanghua Chen

Wu Yue-Ying

et al.

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Cited by 3 publications

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“…As important parts of the renewable energy, hydrogen energy and fuel cells have attracted a lot of research interest all over the world [6][7][8][9][10][11] . Hydrogen storage materials are the key technology for the utilization of hydrogen energy, and they are made attractive in recent years [12][13][14] .…”

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Mg micro/nanoscale materials with sphere-like morphologies: Size-controlled synthesis and characterization

Tao

Liu

2009

Sci. China Ser. G-Phys. Mech. Astron.

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Mg micro/nanoscale materials with sphere-like morphologies are prepared via a vapor-transport deposition process. The structure and morphology of the as-prepared products are characterized by powder X-ray diffraction and scanning electron microscopy. Vapor-liquid-solid mechanism is proposed to explain the formation of Mg micro/nanospheres on the basis of the experimental results. magnesium, micro/nanoscale spheres, growth mechanismThe search for clean and renewable energy sources is an urgent target because of energy crisis and environmental concerns [1][2][3][4][5] . As important parts of the renewable energy, hydrogen energy and fuel cells have attracted a lot of research interest all over the world [6][7][8][9][10][11] . Hydrogen storage materials are the key technology for the utilization of hydrogen energy, and they are made attractive in recent years [12][13][14] . For practical applications, hydrogen storage materials should exhibit high hydrogen capacity, low absorption/desorption temperatures and pressures, and fast kinetics and thermodynamics for the hydriding/ dehydriding process. To satisfy the requirement for the usage, many researches have focused on various hydrogen storage materials, including metal hydrides, complex hydrides, porous solids (such as carbon-based materials, and metal-organic frameworks (MOFs)) [15,16] . Among these materials, metallic Mg has a lot of merits for hydrogen storage: high storage capacity (7.6% by weight by forming MgH 2 ), low density (1.74 g/cm 3 ), abundance in the earth's crust, and low cost. However, the main disadvantage of traditional bulk Mg/MgH 2 is the slow kinetics of hydrogen uptake and release, and the relatively high operation temperature (approximately 300℃).Actually, magnesium resources are very abundant in China, making it meaningful to develop the utilization of magnesium. With regards to micro/nanoscale structures, magnesium materials are expected to display intriguing physical and chemical properties [17][18][19][20][21][22][23] , paving a good way for overcoming those drawbacks of bulk Mg. In our previous work, we have exploited the synthesis of magnesium nano/mesoscale materials with different shape and the investigation of properties in hydrogen storage and Mg/air batteries, in which nano/meso Mg shows an excellent performance for storage and conversion of energy [22,23] . In this work, sphere-like Mg micro/nanoscale structures have been further achieved via vaportransport approach by adjusting the experimental parameters on the basis of our reported results. The research on the Mg products with uniform morphologies may provide new opportunities for the controlled synthesis of these materials at a high yield and then promote the potential use in hydrogen storage and fuel cells.

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confidence: 99%

Mg micro/nanoscale materials with sphere-like morphologies: Size-controlled synthesis and characterization

Tao

Liu

2009

Sci. China Ser. G-Phys. Mech. Astron.

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Effects of ion bombardment on microcrystalline silicon growth by inductively coupled plasma assistant magnetron sputtering

Zhu

et al. 2012

Sci. China Phys. Mech. Astron.

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The effect of original crystalline phase on solid phase crystallization of hydrogenated silicon thin films

Wang

Zhang

Wang

et al. 2013

Applied Surface Science

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Infrared-transmission spectra and hydrogen content of hydrogenated amorphous silicon

Cited by 3 publications

References 18 publications

Mg micro/nanoscale materials with sphere-like morphologies: Size-controlled synthesis and characterization

Mg micro/nanoscale materials with sphere-like morphologies: Size-controlled synthesis and characterization

Effects of ion bombardment on microcrystalline silicon growth by inductively coupled plasma assistant magnetron sputtering

The effect of original crystalline phase on solid phase crystallization of hydrogenated silicon thin films

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