2Te3/Bi2Se3多層納米線材料。對(duì)電沉積過(guò)程的監(jiān)測(cè)結(jié)果表明,電沉積過(guò)程中體系電阻不斷增大,隨著電沉積的不斷進(jìn)行,體系電阻增大幅度越來(lái)越小。對(duì)電沉積產(chǎn)物進(jìn)行退火處理,然后溶解掉模板,進(jìn)行XRD測(cè)試,結(jié)果表明,所制備的產(chǎn)物是Bi2Te3/Bi2Se3,同時(shí),有很多“衛(wèi)星峰”出現(xiàn)在衍射圖上,表明所制備的材料具有超晶格結(jié)構(gòu)。運(yùn)用FE-SEM、TEM對(duì)產(chǎn)物形貌進(jìn)行分析,結(jié)果發(fā)現(xiàn),所制備的材料是像“彈簧”一樣形狀的Bi2Te3/Bi2Se3多層納米線。通過(guò)對(duì)脈沖時(shí)間的調(diào)節(jié),可以實(shí)現(xiàn)對(duì)多層納米線周期的調(diào)制。"/>

最新色国产精品精品视频,中文字幕日韩一区二区不卡,亚洲有码转帖,夜夜躁日日躁狠狠久久av,中国凸偷窥xxxx自由视频

+高級(jí)檢索
熱電Bi2Te3/Bi2Se3納米“彈簧”材料的電化學(xué)組裝
作者:
作者單位:

商洛學(xué)院陜西省尾礦資源綜合利用重點(diǎn)實(shí)驗(yàn)室

作者簡(jiǎn)介:

通訊作者:

中圖分類號(hào):

基金項(xiàng)目:

國(guó)家自然科學(xué)基金資助(項(xiàng)目號(hào)：21873063)和商洛學(xué)院科研基金資助(項(xiàng)目號(hào)：19SKY001)


Electrochemical Assembly of Thermoelectric Bi2Te3/Bi2Se3 Nano-spring Materials
Author:
Affiliation:

Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources,Shangluo University

Fund Project:

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問(wèn)統(tǒng)計(jì)
    • |
  • 參考文獻(xiàn)
    • |
  • 相似文獻(xiàn)
    • |
  • 引證文獻(xiàn)
    • |
  • 資源附件
    • |
  • 文章評(píng)論
    摘要:

    為了探索制備具有高熱電優(yōu)值的一維納米材料,采用脈沖電化學(xué)技術(shù)制備了一種熱電Bi2Te3/Bi2Se3多層納米線材料。對(duì)電沉積過(guò)程的監(jiān)測(cè)結(jié)果表明,電沉積過(guò)程中體系電阻不斷增大,隨著電沉積的不斷進(jìn)行,體系電阻增大幅度越來(lái)越小。對(duì)電沉積產(chǎn)物進(jìn)行退火處理,然后溶解掉模板,進(jìn)行XRD測(cè)試,結(jié)果表明,所制備的產(chǎn)物是Bi2Te3/Bi2Se3,同時(shí),有很多“衛(wèi)星峰”出現(xiàn)在衍射圖上,表明所制備的材料具有超晶格結(jié)構(gòu)。運(yùn)用FE-SEM、TEM對(duì)產(chǎn)物形貌進(jìn)行分析,結(jié)果發(fā)現(xiàn),所制備的材料是像“彈簧”一樣形狀的Bi2Te3/Bi2Se3多層納米線。通過(guò)對(duì)脈沖時(shí)間的調(diào)節(jié),可以實(shí)現(xiàn)對(duì)多層納米線周期的調(diào)制。

    Abstract:

    Bi2Te3/Bi2Se3 multi-layered nanowire arrays with the spring morphology were firstly fabricated by pulsed current electrodeposition. Also, the deposition course was monitored by electrochemical workstation connecting with a computer. In addition, the phase structure and morphology were characterized by XRD, FE-SEM and TEM, inspectively. The results showed that the pulsed current electrodeposition method could be used to prepare multi-layered nanowire arrays. According to investigation, the whole resistance of the three-electrode electrochemical system gradually increased. But the increasing degree of the resistance became smaller and smaller. Besides, the results of XRD analysis showed that the as-deposited multi-layed nanowire arrays were Bi2Te3/Bi2Se3 nanowires. Meanwhile, there were some “satellite peaks” appeared in the XRD pattern. This also conformed the as-fabricated materials were multi-layered nanowires. What’s more, the morphology of the as-prepared materials was spring-like morphology. The two phases could be distinguished by their own color. In order to investigate the effect of pulsed time on the length of each periodical segment, we change the pulsed time and prepared another sample. According to the results of TEM, the length of each segment could be tuned.

    參考文獻(xiàn)
    相似文獻(xiàn)
    引證文獻(xiàn)
引用本文

李曉龍,周春生,邸友瑩,侯小潔,李燕怡,陳鳳英,元春梅,黃娜,魏偉.熱電Bi2Te3/Bi2Se3納米“彈簧”材料的電化學(xué)組裝[J].稀有金屬材料與工程,2021,50(12):4486~4492.[Li Xiaolong, Zhou Chunsheng, Di Youying, Hou Xiaojie, Li Yanyi, Chen Fengying, Yuan Chunmei, Huang Na, Wei Wei. Electrochemical Assembly of Thermoelectric Bi2Te3/Bi2Se3 Nano-spring Materials[J]. Rare Metal Materials and Engineering,2021,50(12):4486~4492.]
DOI：10.12442/j. issn.1002-185X.20200946

復(fù)制
文章指標(biāo)
  • 點(diǎn)擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:2020-12-09
  • 最后修改日期:2021-01-28
  • 錄用日期:2021-03-08
  • 在線發(fā)布日期: 2022-01-09
  • 出版日期: 2021-12-24