Designed Synthesis of Well-Defined Pd@Pt Core-Shell Nanoparticles with Controlled Shell Thickness as Efficient Oxygen Reduction Electrocatalysts

2013 ◽  
Vol 19 (25) ◽  
pp. 8190-8198 ◽  
Author(s):  
Ran Choi ◽  
Sang-Il Choi ◽  
Chang Hyuck Choi ◽  
Ki Min Nam ◽  
Seong Ihl Woo ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Shell Thickness ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles ◽  
Designed Synthesis

Intermetallic FePt@PtBi Core–Shell Nanoparticles for Oxygen Reduction Electrocatalysis

2021 ◽  
Author(s):  
Jingyu Guan ◽  
Shaoxuan Yang ◽  
Tongtong Liu ◽  
Yihuan Yu ◽  
Jin Niu ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles

scholarly journals Influence of Ag@SiO2 with Different Shell Thickness on Photoelectric Properties of Hole-Conductor-Free Perovskite Solar Cells

Nanomaterials ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2364
Author(s):  
Zhiyuan He ◽  
Chi Zhang ◽  
Rangwei Meng ◽  
Xuanhui Luo ◽  
Mengwei Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Shell Thickness ◽  
Perovskite Solar Cells ◽  
Current Gain ◽  
Core Shell ◽  
Counter Electrodes ◽  
Shell Nanoparticles ◽  
Photoelectric Properties ◽  
Photosensitive Layer ◽  
Core Shell Nanoparticles

In this paper, Ag@SiO2 core-shell nanoparticles (NPs) with different shell thicknesses were prepared experimentally and introduced into the photosensitive layer of mesoscopic hole-conductor-free perovskite solar cells (PSCs) based on carbon counter electrodes. By combining simulation and experiments, the influences of different shell thickness Ag@SiO2 core-shell nanoparticles on the photoelectric properties of the PSCs were studied. The results show that, when the shell thickness of 0.1 wt% Ag@SiO2 core-shell nanoparticles is 5 nm, power conversion efficiency is improved from 13.13% to 15.25%, achieving a 16% enhancement. Through the measurement of the relevant parameters of the obtained perovskite film, we found that this gain not only comes from the increase in current density that scholars generally think, but also comes from the improvement of the film quality. Like current gain, this gain is related to the different shell thickness of Ag@SiO2 core-shell nanoparticles. Our research provides a new direction for studying the influence mechanism of Ag@SiO2 core-shell nanoparticles in perovskite solar cells.

Fe@Pt core-shell nanoparticles as electrocatalyst for oxygen reduction reaction in acidic media

Ionics ◽  
2017 ◽  
Vol 24 (1) ◽  
pp. 229-236 ◽  
Author(s):  
Yanli Huang ◽  
Zhan Tan ◽  
Huimin Wu ◽  
Chuanqi Feng ◽  
Yu Ding
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Core Shell ◽  
Acidic Media ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles

Atomically dispersed Fe–N–C decorated with Pt-alloy core–shell nanoparticles for improved activity and durability towards oxygen reduction

2020 ◽  
Vol 13 (9) ◽  
pp. 3032-3040 ◽  
Author(s):  
Xiang Ao ◽  
Wei Zhang ◽  
Bote Zhao ◽  
Yong Ding ◽  
Gyutae Nam ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Cost Effective ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Single Atoms ◽  
Group Metal ◽  
Pt Alloy ◽  
Core Shell Nanoparticles

An efficient, stable, and cost-effective ORR catalyst composed of core–shell Pt-alloy and non-Pt-group-metal single atoms is reported for PEMFCs.

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