Reaction characteristics of micron-sized Al powder with adding Al/CuO nano-thermite in heated steam

doi:10.1080/15567036.2020.1753860

	Reaction characteristics of micron-sized Al powder with adding Al/CuO nano-thermite in heated steam
	Li, Fan 1,2; Zhu, Baozhong 2; Sun, Yunlan 2; Shi, Wei 2
刊名	ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
	2020-04-23
页码	15
关键词	Aluminum nano-thermite ignition temperature ignition delay time combustion efficiency
ISSN号	1556-7036
DOI	10.1080/15567036.2020.1753860
通讯作者	Zhu, Baozhong(bzzhu@cczu.edu.cn) ; Sun, Yunlan(ylsun@cczu.edu.cn)
英文摘要	In this work, the energetic Al/CuO nano-thermite is chosen as a promising additive to improve the reaction characteristic of mu Al powder in heated steam at 600-900 degrees C. The ignition temperature, ignition delay time, and combustion efficiency were experimentally measured. After all the reaction products were collected, the surface morphologies and phase compositions were analyzed using a scanning electron microscopy and an X-ray diffraction. Results show that the addition of Al/CuO nano-thermite to mu Al powder, the corresponding ignition temperature, and ignition delay time drop considerably. Meanwhile, they also emerge a significant decreasing trend as the furnace temperature increases. At 900 degrees C, the mu Al-12 wt%Al/CuO sample exhibits the lowest ignition temperature of approximately 100 degrees C and the shortest delay time of 9.4 s. In addition, the combustion efficiencies of mu Al powder without addition of Al/CuO are quite low at 700 degrees C and 800 degrees C, less than 10%, while adding various contents of Al/CuO nano-thermite significantly increase its efficiency. However, at 900 degrees C, the combustion efficiency of mu Al-Al/CuO sample is lower than that of mu Al powder without the addition of Al/CuO. Combustion product analysis suggests that the formation of CuAl2 layer on the mu Al particle surface blocks the interaction of the fresh Al and surrounding water molecules. The relationship between the above parameters associated with reaction characteristics and the product characterization was discussed to reveal the complicated combustion mechanism of mu Al-Al/CuO powder in steam.
资助项目	National Natural Science Foundation of China[51676001] ; National Natural Science Foundation of China[51806001] ; National Natural Science Foundation of China[51376007]
WOS关键词	HYDROGEN GENERATION ; ALUMINUM ; COMBUSTION ; WATER ; NANOALUMINUM ; BOROHYDRIDE ; COMPOSITES ; HYDROLYSIS ; CONVERSION ; IGNITION
WOS研究方向	Energy & Fuels ; Engineering ; Environmental Sciences & Ecology
语种	英语
出版者	TAYLOR & FRANCIS INC
WOS记录号	WOS:000528353100001
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/26688]
专题	中国科学院广州能源研究所
通讯作者	Zhu, Baozhong; Sun, Yunlan
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou, Guangdong, Peoples R China 2.Anhui Univ Technol, Sch Energy & Environm, Maanshan 213164, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Li, Fan,Zhu, Baozhong,Sun, Yunlan,et al. Reaction characteristics of micron-sized Al powder with adding Al/CuO nano-thermite in heated steam[J]. ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS,2020:15.
APA	Li, Fan,Zhu, Baozhong,Sun, Yunlan,&Shi, Wei.(2020).Reaction characteristics of micron-sized Al powder with adding Al/CuO nano-thermite in heated steam.ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS,15.
MLA	Li, Fan,et al."Reaction characteristics of micron-sized Al powder with adding Al/CuO nano-thermite in heated steam".ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS (2020):15.