In Situ Observations Reveal the Five-fold Twin-Involved Growth of Gold Nanorods by Particle Attachment.

In Situ Observations Reveal the Five-fold Twin-Involved Growth of Gold Nanorods by Particle Attachment.
复制标题

DOI:
10.3390/nano13050796
复制
发表时间:
2023-02-21
期刊:
Nanomaterials (Basel, Switzerland)
影响因子:
--
通讯作者:
Deepak FL
Deepak FL
中科院分区:
其他
文献类型:
--
作者:
Sun Q;Boddapati L;Wang L;Li J;Deepak FL

文献摘要

参考文献

相似文献

结晶在决定晶体尺寸、纯度和形貌方面起着关键作用。因此,从原子角度揭示纳米颗粒的生长动力学对于制备具有理想几何形状和性能的纳米晶体具有重要意义。在此,我们在像差校正透射电子显微镜(AC-TEM)下通过粒子附着对金纳米棒(nr)的生长进行了原位原子尺度的观察。结果表明,粒径约为10 nm的球形胶体金纳米粒子的附着过程包括颈状(NL)结构的形成和生长,随后是五重孪晶中间态和全原子重排。统计分析表明,金纳米粒的数量和胶体金纳米粒的大小可以很好地调节金纳米粒的长度和直径。结果表明,在3-14 nm的球形Au NPs中存在5倍双相关粒子附着,并为利用辐照化学方法制备Au NPs提供了新的思路。
Crystallization plays a critical role in determining crystal size, purity and morphology. Therefore, uncovering the growth dynamics of nanoparticles (NPs) atomically is important for the controllable fabrication of nanocrystals with desired geometry and properties. Herein, we conducted in situ atomic-scale observations on the growth of Au nanorods (NRs) by particle attachment within an aberration-corrected transmission electron microscope (AC-TEM). The results show that the attachment of spherical colloidal Au NPs with a size of about 10 nm involves the formation and growth of neck-like (NL) structures, followed by five-fold twin intermediate states and total atomic rearrangement. The statistical analyses show that the length and diameter of Au NRs can be well regulated by the number of tip-to-tip Au NPs and the size of colloidal Au NPs, respectively. The results highlight five-fold twin-involved particle attachment in spherical Au NPs with a size of 3–14 nm, and provide insights into the fabrication of Au NRs using irradiation chemistry.
非晶态铋到纳米晶相变中粒子介导的成核和生长的原位原子尺度研究
DOI: 10.1002/advs.201700992
发表时间: 2018-06
期刊: Advanced science (Weinheim, Baden-Wurttemberg, Germany)
影响因子: --
作者:
Li J;Chen J;Wang H;Chen N;Wang Z;Guo L;Deepak FL
通讯作者: Deepak FL
DOI: 10.1039/c9nh00308h
发表时间: 2019-11-01
期刊: NANOSCALE HORIZONS
影响因子: 9.7
作者:
Li, Junjie;Li, Yunping;Deepak, Francis Leonard
通讯作者: Deepak, Francis Leonard
湿化学法合成锌黄锡矿Cu2ZnSnS4纳米晶及其在锂离子电池中的应用
DOI: 10.1016/j.matlet.2012.10.125
发表时间: 2013-02-01
期刊: MATERIALS LETTERS
影响因子: 3
作者:
Li, Junjie;Shen, Jie;Huang, Sumei
通讯作者: Huang, Sumei
DOI: 10.1007/s12274-022-4253-2
发表时间: 2022-04-07
期刊: NANO RESEARCH
影响因子: 9.9
作者:
Li, Junjie;Lian, Zan;Chen, Zuxin
通讯作者: Chen, Zuxin
DOI: 10.1021/acs.nanolett.8b03139
发表时间: 2018-10-01
期刊: NANO LETTERS
影响因子: 10.8
作者:
Jin, Biao;Sushko, Maria L.;Tang, Ruikang
通讯作者: Tang, Ruikang