Nankai University

About: Nankai University is a education organization based out in Tianjin, China. It is known for research contribution in the topics: Catalysis & Enantioselective synthesis. The organization has 42964 authors who have published 51866 publications receiving 1127896 citations. The organization is also known as: Nánkāi Dàxué.

Managing e-waste in China: Policies, pilot projects and alternative approaches

Abstract: As the largest exporter of electrical and electronic equipment (EEE) and importer of waste electrical and electronic equipment (WEEE, also called e-waste) around the world, China plays a key role in the global life cycle of electronics. This paper reviews the existing framework for e-waste management in China including regulatory policies and pilot projects. The Chinese government has been active in creating a legislative and institutional framework to realize e-waste recycling. Pilot projects have been established with the intent to test new formal systems to replace informal recycling. These projects have usually failed to collect sufficient e-waste, mainly because informal recyclers pay consumers for their e-waste and pilot projects do not. Challenges to implementing e-waste reuse/recycling systems particular to the Chinese situation are analyzed and two alternative policy approaches are proposed to deal with these challenges. The first policy approach proposed is a system which shares financial responsibility among consumers, manufacturers and the government. The system includes a deposit returned to consumers as an incentive to turn in e-waste. The second proposal is, where appropriate, to include an e-waste channel which mixes informal and formal sectors, with the informal sector handling collection and reuse and the formal sector responsible for dismantling and recycling.

Highly Enantioselective Insertion of Carbenoids into N−H Bonds Catalyzed by Copper Complexes of Chiral Spiro Bisoxazolines

Abstract: A highly efficient copper-catalyzed asymmetric insertion of α-diazoesters into N−H bonds has been realized by using chiral spiro bisoxazoline ligands, affording α-amino acid derivatives in high yields with excellent enantioselectivities.