Two-Stage Melting in Core–Shell Nanoparticles: An Atomic-Scale Perspective

2012 ◽  
Vol 116 (21) ◽  
pp. 11837-11841 ◽  
Author(s):  
Rao Huang ◽  
Yu-Hua Wen ◽  
Zi-Zhong Zhu ◽  
Shi-Gang Sun
Microscopy ◽  
2020 ◽  
Vol 69 (1) ◽  
pp. 26-30
Author(s):  
Shin Inamoto ◽  
Yuji Otsuka

Abstract The properties of core-shell nanoparticles, which are used for many catalytic processes as an alternative to platinum, depend on the size of both the particle and the shell. It is thus necessary to develop a quantitative method to determine the shell thickness. Pd–Pt core-shell particles were analyzed using scanning transmission electron microscopy (STEM) and energy-dispersive X-ray spectroscopy (EDX). Quantitative EDX line profiles acquired from the core-shell particle were compared to four core-shell models. The results indicate that the thickness of the Pt shell corresponds to two atomic layers. Meanwhile, high-angle annular dark-field STEM images from the same particle were analyzed and compared to simulated images. Again, this experiment demonstrates that the shell thickness was of two atomic layers. Our results indicate that, in small particles, it is possible to use EDX for a precise atomic-scale quantitative analysis.


ACS Nano ◽  
2018 ◽  
Vol 12 (12) ◽  
pp. 12296-12304 ◽  
Author(s):  
Michael Nathanson ◽  
Krishan Kanhaiya ◽  
Alan Pryor ◽  
Jianwei Miao ◽  
Hendrik Heinz

2016 ◽  
Vol 18 (14) ◽  
pp. 9847-9854 ◽  
Author(s):  
Rao Huang ◽  
Yu-Hua Wen ◽  
Zi-Zhong Zhu ◽  
Shi-Gang Sun

Atomic-scale understanding of structures and thermodynamic stability of core–shell nanoparticles is important for both their synthesis and application.


RSC Advances ◽  
2016 ◽  
Vol 6 (106) ◽  
pp. 104049-104066 ◽  
Author(s):  
Xiaoyue Yu ◽  
Bo Zhang ◽  
Tianqi Wang ◽  
Jing Zhang ◽  
Shengjun Mu ◽  
...  

Two-stage pH-sensitive DOX·HCl loaded core–shell nanoparticles (CPOD) with dual drug-loading strategies showed pretty in vivo anti-tumor efficacy.


2013 ◽  
Vol 430 ◽  
pp. 012038 ◽  
Author(s):  
Xusheng Zheng ◽  
Shoujie Liu ◽  
Xing Chen ◽  
Jie Cheng ◽  
Qing Ye ◽  
...  

2012 ◽  
Vol 27 (1) ◽  
pp. 95-101
Author(s):  
Shi-Bin LIU ◽  
Chun-Ying YANG ◽  
Zhong-Lin ZHANG ◽  
Dong-Hong DUAN ◽  
Xiao-Gang HAO ◽  
...  

2013 ◽  
Vol 20 (28) ◽  
pp. 3488-3499 ◽  
Author(s):  
Yon Jung ◽  
Hwanbum Lee ◽  
Jae Kim ◽  
Eun Koo ◽  
Keun Oh ◽  
...  

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