以NaOH和NH3·H2O的混合溶液为沉淀剂, 在水热条件下制备了大长径比的γ-AlOOH纳米线;并采用X射线衍射仪和透射电子显微镜对制备的产物进行了表征。结果表明: 调节混合沉淀剂中NaOH和NH3·H2O的比例, 可得到不同形貌的γ-AlOOH纳米结构;大长径比γ-AlOOH纳米线是由水热反应初期形成的尺寸较大的层状γ-AlOOH通过卷曲而形成的;以体积比1∶1的NaOH和NH3·H2O混合溶液为沉淀剂, 在保温时间24 h条件下, 制备的γ-AlOOH纳米线形态最好, 其直径为10～30 nm, 长度为1～2 μm, 长径比为60～100, 并具有明显的晶面择优取向。
所属栏目
纳米材料上海市经信委产学研合作项目(沪CXY-2013-73)
收稿日期
2014/2/22014/10/29
作者单位
杨琪:上海工程技术大学材料工程学院, 上海 201620
王影:上海工程技术大学材料工程学院, 上海 201620
备注
杨琪(1969-), 男, 湖南衡阳人, 副教授, 博士。
引用该论文:
YANG Qi,WANG Ying.Hydrothermal Synthesis and Characterization of γ-AlOOH Nanowires with Large Aspect Ratio[J].Materials for mechancial engineering,2014,38(12):82～86
杨琪,王影.水热合成大长径比的γ-AlOOH纳米线及表征[J].机械工程材料,2014,38(12):82～86
被引情况:
【1】
赵明娟,李 深,赵龙志,张 坚, "不同方法制备负热膨胀特性ZrV
2O
7粉体",机械工程材料
40, 1-5(2016)
参考文献
【1】
ZHOU J, DENG S Z, CHEN J, et al. Synthesis of crystalline alumina nanowires and nanotrees［J］.Chem Phys Lett,2002,365:505-508.
【2】
TANG C C, FAN S S, LI P, et al. In situ catalytic growth of Al2O3 and Si nanowires［J］.J Cryst Growth,2001,224:117-121.
【3】
VALCARCEL V V, SOUTO A, GUITIAN F. Development of single-crystal α-Al2O3 fibers by vapor-liquid-solid deposition (VLS) from aluminum and powdered silica［J］.Adv Mater,1998,10(2):138-140.
【4】
JIN Y Z, ZHU Y Q, BRIGATTI K, et al. Catalysed growth of novel aluminium oxide nanorods［J］.Appl Phys: A,2003,77:113-115.
【5】
ZHAO Q, XU X, ZHANG H, et al. Catalyst-free growth of single-crystalline alumina nanowires arrays［J］.Appl Phys:A,2004,79(7):1721-1724.
【6】
HOU H W, XIE Y, YANG Q, et al. Preparation and characterization of γ-AlOOH nanotubes and nanorods［J］.Nanotechnology, 2005,16:741-745.
【7】
MA M G, ZHU Y J, XU Z L. A new route to synthesis of γ-alumina nanorods［J］.Mater Lett,2007,61:1812-1815.
【8】
CHEN X Y, HUH H S, LEE S W. Hydrothermal synthesis of boehmite (γ-AlOOH) nanoplatelets and nanowires: pH-controlled morphologies［J］.Nanotechnology,2007,18:285608 -285612.
【9】
ZHANG W X, WEN X G, YANG S H, et al. Single crystalline scroll-type nanotube arrays of copper hydroxide synthesized at room temperature［J］.Adv Mater 2003,15:822-825.
【10】
LI Y D, LI X L, HE R R, et al. Artificial lamellar mesostructures to WS2 nanotubes［J］.J Am Chem Soc, 2002,124(7):1411-1416.
【11】
CHEN X Y, ZHANG Z J, LI X L, et al. Controlled hydrothermal synthesis of colloidal boehmite (γ-AlOOH) nanorods and nanoflakes and their conversion into γ-Al2O3 nanocrystals［J］.Solid State Communications,2008,145:368-373.
【12】
CHANG Y, NING Z Y, LI Y, et al. Hydrothermal synthesis of aluminum oxy-hydroxide nanorod and nanotube arrays［J］.Electrochimica Acta,2013,93:241-247.
【13】
XU Z H, YU J G, JARONIEC M, et al. Efficient catalytic removal of formaldehyde at room temperature using AlOOH nanoflakes with deposited Pt［J］.Applied Catalysis B: Environmental,2015,163:306-312.
【14】
TANG Z, LIANG J L, LI X H, et al. Synthesis of flower-like Boehmite (γ-AlOOH) via a one-step ionic liquid-assisted hydrothermal route［J］.Journal of Solid State Chemistry,2013,202:305-314.
【15】
XU J Q, ESTRUGA M, CHEN L Y, et al. Urchin-like AlOOH nanostructures on Al microspheres grown via in-situ oxide template［J］.Materials Science and Engineering: B, 2014,188:89-93.
