A CuNi Alloy–Carbon Layer Core–Shell Catalyst for Highly Efficient Conversion of Aqueous Formaldehyde to Hydrogen at Room Temperature

2021 ◽  
Author(s):  
Zining Zhou ◽  
Yun Hau Ng ◽  
Shengju Xu ◽  
Siyuan Yang ◽  
Qiongzhi Gao ◽  
...  
Keyword(s):  
Room Temperature ◽  
Carbon Layer ◽  
Core Shell ◽  
Efficient Conversion ◽  
Highly Efficient ◽  
Alloy Carbon ◽  
Aqueous Formaldehyde

Synthesis and Antioxidant Behavior of Carbon-Coated Copper Nanoparticles

2012 ◽  
Vol 568 ◽  
pp. 299-302
Author(s):  
Jin Chen ◽  
Hai Yan Zhang ◽  
Xiao Ping Liu ◽  
Li Ping Li
Keyword(s):  
Copper Nanoparticles ◽  
Copper Content ◽  
Metal Content ◽  
Room Temperature ◽  
Carbon Layer ◽  
Core Shell ◽  
Good Oxidation Resistance ◽  
Carbon Coated ◽  
Core Shell Structure ◽  
Conductivity Jump

We use plasma method syntheisized Carbon coated copper nanoparticles The structure , size distribution and phase composition of the particles were analysised by TEM , XRD and DSC. Meanwhile, The conductivity of carbon-coated copper nanoparticles were measured. Results show that Carbon coated copper nanoparticles were core-shell structure for the copper core inside, the multi carbon layer outside, around the copper core is graphite-like carbon and far away from the copper core is amorphous carbon. While carbon-coated copper nanoparticles at room temperature and high temperatures have shown good oxidation resistance; The conductivity of carbon-coated copper nanoparticles with metal content increases and when the copper content is 80% the conductivity jump.

scholarly journals Catalytic C–H aerobic and oxidant-induced oxidation of alkylbenzenes (including toluene derivatives) over VO2+ immobilized on core–shell Fe3O4@SiO2 at room temperature in water

RSC Advances ◽  
2020 ◽  
Vol 10 (40) ◽  
pp. 23543-23553 ◽  
Author(s):  
Pegah Mohammadpour ◽  
Elham Safaei
Keyword(s):  
Selective Oxidation ◽  
Room Temperature ◽  
Solvent Free ◽  
Core Shell ◽  
Highly Efficient ◽  
Free Media

A highly efficient, recoverable, sustainable, economic and eco-friendly catalyst containing VO2+ species supported on SiO2@Fe3O4 nanoparticles for selective oxidation of alkylbenzenes using TBHP or O2 at room temperature in H2O or solvent-free media.

One-Dimensional TiO2@GaON Core-Shell Nanowires with Controlled Shell Thickness from Atomic Layer Deposition for Stable and Efficient Photoelectrochemical Water Splitting

2019 ◽  
Author(s):  
Jiajia Tao ◽  
Hong-Ping Ma ◽  
Kaiping Yuan ◽  
Yang Gu ◽  
Jianwei Lian ◽  
...  
Keyword(s):  
Atomic Layer Deposition ◽  
Band Gap ◽  
Water Splitting ◽  
Atomic Layer ◽  
Photoelectrochemical Water Splitting ◽  
Core Shell ◽  
Photoelectrochemical Performance ◽  
Highly Efficient ◽  
Layer Deposition ◽  
Shell Nanowires

<div>As a promising oxygen evolution reaction semiconductor, TiO2 has been extensively investigated for solar photoelectrochemical water splitting. Here, a highly efficient and stable strategy for rationally preparing GaON cocatalysts on TiO2 by atomic layer deposition is demonstrated, which we show significantly enhances the</div><div>photoelectrochemical performance compared to TiO2-based photoanodes. For TiO2@20 nm-GaON core-shell nanowires a photocurrent density up to 1.10 mA cm-2 (1.23 V vs RHE) under AM 1.5 G irradiation (100 mW cm-2) has been achieved, which is 14 times higher than that of TiO2 NWs. Furthermore, the oxygen vacancy formation on GaON as well as the band gap matching with TiO2 not only provides more active sites for water oxidation but also enhances light absorption to promote interfacial charge separation and migration. Density functional theory studies of model systems of GaON-modified TiO2 confirm the band gap reduction, high reducibility and ability to activate water. The highly efficient and stable systems of TiO2@GaON core-shell nanowires provide a deeper understanding and universal strategy for enhancing photoelectrochemical performance of photoanodes now available. </div>

scholarly journals Highly efficient photocatalytic H2O2 production on core–shell CdS@CdIn2S4 heterojunction in non-sacrificial system

2021 ◽  
Author(s):  
Ning Zhang ◽  
Sufen Lin ◽  
Fuchen Wang ◽  
Yongdi Liu ◽  
Jinlong Zhang ◽  
...  
Keyword(s):  
Core Shell ◽  
H2o2 Production ◽  
Highly Efficient

Highly efficient sunitinib release from pH-responsive mHPMC@Chitosan core-shell nanoparticles

2021 ◽  
Vol 258 ◽  
pp. 117719
Author(s):  
Hessam Jafari ◽  
Gholam Reza Mahdavinia ◽  
Bagher Kazemi ◽  
Hermann Ehrlich ◽  
Yvonne Joseph ◽  
...  
Keyword(s):  
Core Shell ◽  
Ph Responsive ◽  
Shell Nanoparticles ◽  
Highly Efficient ◽  
Core Shell Nanoparticles
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