Nanchang Hangkong University

About: Nanchang Hangkong University is a education organization based out in Nanchang, China. It is known for research contribution in the topics: Microstructure & Alloy. The organization has 7004 authors who have published 5270 publications receiving 62162 citations. The organization is also known as: Nanchang Aviation University.

Thermochemically driven crystal phase transfer via chlorination roasting toward the selective extraction of lithium from spent LiNi1/3Co1/3Mn1/3O2

Abstract: The selective extraction of lithium from spent lithium-ion batteries (LIBs) is significant for combating potential lithium deficiencies and for providing environmental protection by enabling highly selective Li extraction through a short path. Herein, we demonstrate a thermochemically driven process for spent LiNi1/3Co1/3Mn1/3O2 (NCM) batteries by systematically understanding the conversion mechanisms and controlling the chlorination behavior during chlorinated roasting. First, software simulations based on thermochemical differences are introduced to select customized chloride salts for the thermal treatment of spent NCM materials. The thermal behavior characterization studies are combined with thermochemical calculations, showing that CaCl2 and its hydrates energetically favor the preferential destruction of the layered structure of lithium oxides and transform them into water-soluble chloride compounds. Based on this unique mechanism, the established lithium extraction system achieves outstanding selectivity and realizes the target of an acid-free method, greatly reducing its negative environmental impact. This work may shed new light on the mechanism of chlorination roasting for selective extraction and provide resources to develop promising technology for the green and selective extraction of lithium from spent NCM batteries.

A novel heterometal–organic coordination polymer with chelidamic acid: nonlinear optical and magnetic properties,

Abstract: NSF of China [20701037, 20801026]; NSF for Distinguished Young Scientist of China [20425104]; 973 program [2009CB939801]; Key Project from the CAS [KJCX2.YW.M10]; NSF of Fujian Province [2008I0026]

A critical review of the recovery of rare earth elements from wastewater by algae for resources recycling technologies

Abstract: Rare earth elements (REEs) are important strategic resources reserved by countries in the 21st century, especially in light of a global supply crisis stemming from the increasing demand for REEs in the high-tech industry. State-of-the-art technologies for the capture and recovery of REEs from wastewater are thus essential for a sustainable future. Algae-based technology is considered one of the most promising methods for recovering REEs for its high efficiency, low cost, and wide applicability. This review begins with a discussion of how the characteristics of algae affect the REEs removal process. A systematic analysis and comparison of the underlying adsorption/absorption mechanisms and factors affecting REEs removal from wastewater by dried/living algae are also presented. Inspired by the differences in these mechanisms, various strategies for improving the removal efficiency of REEs by dried and living algae are developed and summarized. Different recycling and resource utilization technologies are analyzed according to the properties of dried and living algae. Finally, prospects of future studies are proposed to aid future efforts for making algae-based REEs recovery technology a commercial reality.