Search

Your search keyword '"Du, Yongling"' showing total 172 results
Start Over Author "Du, Yongling"
172 results on '"Du, Yongling"'

39. Ultrafast exciton quenching by energy and electron transfer in colloidal CdSe nanosheet–Pt heterostructures† †Electronic supplementary information (ESI) available: Synthesis details, transient absorption set-ups, NS and NS–Pt spectra fitting, kinetics fitting model and parameters, details about the exciton diffusion controlled energy transfer model. See DOI: 10.1039/c4sc02994a Click here for additional data file

Author

Wu, Kaifeng, Li, Qiuyang, Du, Yongling, Chen, Zheyuan, and Lian, Tianquan

Subjects
Condensed Matter::Quantum Gases, Condensed Matter::Materials Science, Chemistry, Condensed Matter::Other, Physics::Optics, Condensed Matter::Mesoscopic Systems and Quantum Hall Effect
Abstract

Large in-plane exciton mobility in CdSe nanosheets leads to ultrafast exciton quenching by energy transfer to Pt., Two-dimensional (2-D) semiconductor nanomaterials are receiving tremendous research interests due in part to their attractive light absorption and charge transport properties. Integration of catalytic metal nanoparticles with these 2-D semiconductors can potentially lead to new photocatalytic nanoheterostructures for efficient solar-to-fuel conversion. Here we report the synthesis and transient absorption study of colloidal quantum confined CdSe nanosheets with a Pt nanoparticle at the edge or vertex. Due to the large in-plane exciton mobility, ∼86.6 ± 0.5% of excitons generated in CdSe sheets can be transported to NS–Pt interface and quenched by energy transfer to Pt (with a half-life

Published
2014

43. Chiral Pyridoxal-Catalyzed Asymmetric Biomimetic Transamination of α-Keto Acids

Author

Shi, Limin, Tao, Chuangan, Yang, Qin, Liu, Yong Ethan, Chen, Jing, Chen, Jianfeng, Tian, Jiaxin, Liu, Feng, Li, Bo, Du, Yongling, and Zhao, Baoguo

Abstract

A series of chiral pyridoxals 8and 9have been developed from commercially available pyridoxine and (S)-α,α-diarylprolinols. The pyridoxals exhibited good catalytic activity in an asymmetric transamination of α-keto acids with 2,2-diphenylglycine (7f) as the amine source to give various α-amino acids in 29–85% yields with 53–80% ee’s. The current asymmetric transamination has successfully mimicked a complete biological transamination process characterized by two half-transaminations, a small chiral pyridoxal molecule acting as the catalyst, and enantioselective control.

Published
2024
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results