Size-selected and surface-passivated CsPbBr3 perovskite nanocrystals for self-enhanced electrochemiluminescence in aqueous media

Nanoscale ◽  
2020 ◽  
Vol 12 (13) ◽  
pp. 7321-7329 ◽  
Author(s):  
Yue Cao ◽  
Wenlei Zhu ◽  
Lingling Li ◽  
Ziyi Zhang ◽  
Zixuan Chen ◽  
...  
Keyword(s):  
Aqueous Media ◽  
Perovskite Nanocrystals ◽  
Highly Efficient

Size-selected and surface-passivated CsPbBr3 perovskite nanocrystals are constructed for highly efficient self-enhanced electrochemiluminescence in aqueous media.

Highly efficient and selective photocatalytic CO2 to CO conversion in aqueous solution

2020 ◽  
Vol 56 (27) ◽  
pp. 3851-3854 ◽  
Author(s):  
Xiaomin Chai ◽  
Hai-Hua Huang ◽  
Huiping Liu ◽  
Zhuofeng Ke ◽  
Wen-Wen Yong ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Photocatalytic Performance ◽  
Aqueous Media ◽  
Highly Efficient ◽  
Co Conversion

A Co-based complex displayed the highest photocatalytic performance for CO2 to CO conversion in aqueous media.

Hollow Metal Halide Perovskite Nanocrystals with Efficient Blue Emissions

2019 ◽  
Author(s):  
Michael Worku ◽  
Yu Tian ◽  
Chenkun Zhou ◽  
Haoran Lin ◽  
Maya Chaaban ◽  
...  
Keyword(s):  
Precursor Solution ◽  
Visible Spectral Region ◽  
Metal Halide ◽  
Synthetic Control ◽  
Perovskite Nanocrystals ◽  
Highly Efficient ◽  
Quantum Confinement Effects ◽  
Metal Halide Perovskite ◽  
Lead Bromide ◽  
Halide Perovskite

Metal halide perovskite nanocrystals (NCs) have emerged as a new generation light emitting materials with narrow emissions and high photoluminescence quantum efficiencies (PLQEs). Various types of perovskite NCs, e.g. platelets, wires, and cubes, have been discovered to exhibit tunable emissions across the whole visible spectral region. Despite remarkable advances in the field of metal halide perovskite NCs over the last few years, many nanostructures in inorganic NCs have yet been realized in metal halide perovskites and producing highly efficient blue emitting perovskite NCs remains challenging and of great interest. Here we report for the first time the discovery of highly efficient blue emitting cesium lead bromide perovskite (CsPbBr3) NCs with hollow structures. By facile solution processing of cesium lead bromide perovskite precursor solution containing additional ethylenediammonium bromide and sodium bromide, in-situ formation of hollow CsPbBr3 NCs with controlled particle and pore sizes is realized. Synthetic control of hollow nanostructures with quantum confinement effects results in color tuning of CsPbBr3 NCs from green to blue with high PLQEs of up to 81 %.<br><div><br></div>

scholarly journals Hollow metal halide perovskite nanocrystals with efficient blue emissions

2020 ◽  
Vol 6 (17) ◽  
pp. eaaz5961 ◽  
Author(s):  
Michael Worku ◽  
Yu Tian ◽  
Chenkun Zhou ◽  
Haoran Lin ◽  
Maya Chaaban ◽  
...  
Keyword(s):  
Quantum Confinement Effect ◽  
Visible Spectrum ◽  
Precursor Solution ◽  
Metal Halide ◽  
Synthetic Control ◽  
Light Emitting ◽  
Perovskite Nanocrystals ◽  
Highly Efficient ◽  
Metal Halide Perovskite ◽  
Halide Perovskite

Metal halide perovskite nanocrystals (NCs) have emerged as new-generation light-emitting materials with narrow emissions and high photoluminescence quantum efficiencies (PLQEs). Various types of perovskite NCs, e.g., platelets, wires, and cubes, have been discovered to exhibit tunable emissions across the whole visible spectrum. Despite remarkable advances in the field of perovskite NCs, many nanostructures in inorganic NCs have not yet been realized in metal halide perovskites, and producing highly efficient blue-emitting perovskite NCs remains challenging and of great interest. Here, we report the discovery of highly efficient blue-emitting cesium lead bromide (CsPbBr3) perovskite hollow NCs. By facile solution processing of CsPbBr3 precursor solution containing ethylenediammonium bromide and sodium bromide, in situ formation of hollow CsPbBr3 NCs with controlled particle and pore sizes is realized. Synthetic control of hollow nanostructures with quantum confinement effect results in color tuning of CsPbBr3 NCs from green to blue, with high PLQEs of up to 81%.

“Water soluble” palladium nanoparticle engineering for C–C coupling, reduction and cyclization catalysis

2019 ◽  
Vol 21 (24) ◽  
pp. 6646-6657 ◽  
Author(s):  
A. Iben Ayad ◽  
C. Belda Marín ◽  
E. Colaco ◽  
C. Lefevre ◽  
C. Méthivier ◽  
...  
Keyword(s):  
Aqueous Media ◽  
Water Soluble ◽  
Organic Reactions ◽  
Palladium Nanoparticle ◽  
High Turnover ◽  
Highly Efficient ◽  
Ppm Level

Water stable Pd-NPs prepared in an eco-friendly manner enable highly efficient catalysis of 6 organic reactions in aqueous media with quantities of Pd down to the ppm level and high turnover frequencies.

scholarly journals Highly Efficient C—C Bond-Forming Reactions in Aqueous Media Catalyzed by Monomeric Vanadate Species in an Apatite Framework.

ChemInform ◽  
2007 ◽  
Vol 38 (3) ◽  
Author(s):  
Takayoshi Hara ◽  
Satoko Kanai ◽  
Kohsuke Mori ◽  
Tomoo Mizugaki ◽  
Kohki Ebitani ◽  
...  
Keyword(s):  
Aqueous Media ◽  
Bond Forming ◽  
Highly Efficient ◽  
Bond Forming Reactions
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