Electrochemical Fabrication of Pd-Ag Alloy Nanowire Arrays in Anodic Alumina Oxide Template

来源 :Journal of Materials Science & Technology | 被引量 : 0次 | 上传用户:jeffbee
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
The synthesis of Pd-Ag alloy nanowires in nanopores of porous anodic aluminum oxide (AAO) template by electrochemical deposition technique was reported.Pd-Ag alloy nanowires with 16%-25% Ag content are expected to serve as candidates of useful nanomaterials for the hydrogen sensors.Scanning electron microscopy (SEM) and energy dispersed X-ray spectroscopy (EDX) were employed to characterize the morphologies and compositions of the Pd-Ag nanowires.X-ray diffraction (XRD) was used to characterize the phase properties of the Pd-Ag nanowires.Pd-Ag alloy nanowire arrays with 17.28%-23.76% Ag content have been successfully fabricated by applying potentials ranging from -0.8 to -1.0 V (vs SCE).The sizes of the alloy nanowires are in agreement with the diameter of AAO nanopores.The underpotential deposition of Ag~+ on Pd and Au plays an important role in producing an exceptionally high Ag content in the alloy.Alloy compositions can still be controlled by adjusting the ion concentration ratio of Pd~(2+) and Ag~+ and the electrodeposition processes. XRD shows that nanowires obtained are in the form of alloy of Pd and Ag. The synthesis of Pd-Ag alloy nanowires in nanopores of porous anodic aluminum oxide (AAO) template by electrochemical deposition technique was reported. Pd-Ag alloy nanowires with 16% -25% Ag content are expected to serve as candidates of useful nanomaterials for the hydrogen sensors. Scanning electron microscopy (SEM) and energy dispersed X-ray spectroscopy (EDX) were employed to characterize the morphologies and compositions of the Pd-Ag nanowires. X- ray diffraction (XRD) was used to characterize the phase properties of the Pd-Ag nanowires. Pd-Ag alloy nanowire arrays with 17.28% -23.76% Ag content have been successfully fabricated by applying potentials ranging from -0.8 to -1.0 V (vs SCE). These sizes of the alloy nanowires are in agreement with the diameter of AAO nanopores. The underpotential deposition of Ag ~ + on Pd and Au plays an important role in producing an exceptionally high Ag content in the alloy. Alloys compositions can still be controlled by adjusting the ion concentration ratio o f Pd ~ (2+) and Ag ~ + and the electrodeposition processes. XRD shows that nanowires obtained are in the form of alloy of Pd and Ag.
其他文献
小朋友们,迷你粉丝团正式开播了,在这里可以挥发你的想象力、送上你的祝福、说出你的愿望,欢迎小朋友们投稿!寄来一张你的生活彩色照片和一句想说的话就可以啦!E-mail:xxsbd@
最近看一档综艺节目,这档综艺节目是一个电视台新推出的益智类节目。节目的规则很简单:由8个人各说一段话,选手可以问一些问题让说话的人回答,然后判断这段话是真是假。为了
刘晓利的妈妈最近很伤心,想起儿子就叹气。“怎么变得一点都不听话了呢?”刘妈妈想不通,原本听话温和的儿子,变得……唉!就像是个小暴君!  很多时候,刘晓利会朝家人乱发脾气,多半是为了一点点鸡毛蒜皮的小事儿。其实,什么事都没发生,他只是生气想找茬儿发火。有时他莫名其妙地想哭,没有任何原因。男子汉哪能随便哭鼻子,于是,他便固执地锁上房门,独自蜷缩在角落,让自己烦个痛快,烦到淋漓尽致!刘晓利说:“我是把眼
请下载后查看,本文暂不支持在线获取查看简介。 Please download to view, this article does not support online access to view profile.
慈溪市掌起镇中心小学是一所历史悠久、艺术教育特色鲜明的学校。一踏入校园,孩子们就会被学校浓郁的艺术氛围所感染,体验到美的愉悦, Cixi Zhangqi Central Primary School
提起名侦探,总是让人高呼“太酷了!”“太有性格了!”“学识好渊博噢!”实在是太拉风啦!就连名侦探的助手都很夺人眼球,比如福尔摩斯身边的华生。如果现在给你一个机会,让你
大多数植物的生命始于一粒种子,种子就是一个包含着小植物及其食物储备的生命包。种子只有在适当的湿度和温度等条件下才会发芽生长。有的种子从植物母体释放出来后很快就会
俗话说“亲其师才能信其道”。作为一名教师,不但要有扎实的专业基础知识,为人师表,以身作则,还要懂得如何更好的和学生相处,了解他们的所思所想,只有走近他们,才能更好的了
2月15日 晴  坚强是我们生活组成的一部分,没有坚强就没有克服困难的勇气,没有坚强就没有通向成功的动力。  有一天,我在我们的小区看见许多小朋友在滑旱冰,有的单脚独立,有的边走边转圈,好像舞蹈演员在跟着旋律转来转去,有的张开双臂,像雄鹰展翅快速地向前滑行。他们真是各有绝招,于是也让爸爸给我买来一双。看着刚买来的旱冰鞋,我迫不及待地打开包装盒,脱下鞋就穿上。我担心滑倒,于是,找来爸爸和妈妈扶着我滑
The effect of loading rate on the dynamic fracture properties and the failure mechanisms of glass fiber-reinforced composite materials under mode I fracture is