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Dhand, V.,Venkateswer Rao, M.,Mittal, G.,Rhee, K.Y.,Park, S.J. Elsevier 2015 Current Applied Physics Vol.15 No.3
An in-situ approach to synthesize lithium-graphite nanotubes (LGN) is demonstrated using chemical vapour deposition (CVD). Lithium acetate was used as precursor and as a self-intercalating agent in the presence of copper. Methane was selected as the secondary carbon source. To synthesize lithium-graphite nanotubes (LGN), CVD reactor was set to 500 <SUP>o</SUP>C in the presence of argon (200 sccm), hydrogen (40 sccm) and methane (75 sccm) gas under atmospheric conditions. X-ray diffraction shows that the samples are highly crystalline with the c-axis oriented toward the (002) and (111) planes of the graphitic carbon. High resolution transmission and scanning electron microscopic analyses of the samples shows that lithium has been doped into the layers of graphitic carbon matrix. They also show the formation of an alloy phase with distinctive lattice boundaries and stacked graphitic carbon with a small number of nanorods (lithium carbide). HR-Raman analysis shows the characteristic D and G bands of SP<SUP>2</SUP> carbon with a narrow G band and broad D band indicating defects produced through doping. X-ray photoelectron spectroscopy results show the presence of predominant lithium and carbon peaks. Thermal analysis shows that the sample is stable up to 300 <SUP>o</SUP>C in air.
Finger Millet Threshing and Pearling Technologies in India: a Comprehensive Review
R. V. Powar,V. V. Aware,S. B. Patil,K. G. Dhande,P. U. Shahare 한국농업기계학회 2020 바이오시스템공학 Vol.45 No.2
Purpose This paper presents the recent advances in finger millet processing technologies (FMPTs). In the last decade, many researchers have worked on FMPTs; however, there is a lack of collective information. Therefore, this study comprehensively reviews the recent developments in FMPTs. Methods The different design, development, and performance aspects of finger millet (FM) threshing, pearling, and cleaning are comprehensively reviewed and discussed in this manuscript. Results The different technologies associated with FM processing, viz. threshing, pearling, and cleaning, are summarized with their merits, demerits, and constructional details. Furthermore, the different design, and development aspects of these technologies are studied and reported. Conclusions This comprehensive review on FMPTs helps to identify the research gap and establish a platform for optimum design and development for the future. Additionally, this helps to improve the level of mechanization in FMprocessing. From the review of existing research, the development trend of FMPTs toward the finger millet thresher-cum-pearler (FMTCP) that performs threshing, pearling, and cleaning operation in a single pass. The current requirement is to develop a lightweight, high-performance, and energy-efficient FMTCP that can operate on a single-phase household power supply.