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1太阳能高效光伏热电-复合发电技术现状与展望显示文摘能源需求增加和环境污染问题日益严峻,能源结构转型是实现全球可持续发展的必然趋势。太阳能发电得益于其资源丰富、分布广泛、洁净无污染等优点而成为新能源利用的首选,太阳能发电包括太阳能光伏发电(PV)和太阳能光热发电(TE)2种,将光伏电池和热电材料互补集成,建立光伏-热电(PV-TE)复合发电系统成为研究重点。文章简要介绍PV-TE复合发电工作原理,总结近年来国内外PV-TE领域研究现状,包括复合发电方式具体存在的一些关键问题,并对未来发展方向做出展望。王美威 董翠翠 张洪阳 李君 陶丽楠 2023当代石油石化2023,31,1:3
2High-purity, low-Cl V2O5 via the gaseous hydrolysis of VOCl3 in a fluidized bed显示文摘Present-day all-vanadium redox flow batteries(VRFBs)generally require high purity vanadium oxide as a raw ingredient.The chlorination procedure presents distinct technical advantages with regard to preparing high purity vanadium pentoxide(V2O5)using vanadium oxytrichloride(VOCl3)as a highly pure intermediate.To efficiently prepare high purity V2Os from VOCl3,a single-step fluidized bed chemical vapor deposition(FBCVD)method was explored in the present work.Based on thermodynamic analyses,the direct and complete conversion of VOCl3 to V2O5 is difficult,and may result in a small amount of residual Cl in the product.Consequently,the effects of temperature and the H2O/VOCl3 molar ratio on the quantity of residual Cl were assessed.The Cl concentration was found to decrease with increasing temperature or increasing H2O/VOCl3 molar ratios.Additionally,Cl was determined to be present only in the form of Cl-V bonds,while Cl-H and Cl-Cl bonds were not detected in a V2O5 product made at 200℃with a H2O/VOCl3 molar ratio of 18.A Cl concentration of less than 0.05 wt%was obtained under the optimal synthesis conditions,demonstrating that the FBCVD method is a viable means of preparing high purity V2O5 via the gaseous hydrolysis of VOCl3.Chuanlin Fan Jie Xu Haitao Yang Qingshan Zhu 2020Particuology2020,18,2:2
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