...Hongying Hou; Junkai Li; Jian Lan; Kun Meng; Baoxiang Huang; Hao Li Graphene nanosheets are produced in mass by Hummers method, accompanied with the emission of waste acid effluent with Mn 2+ , which should be reasonably recycled. Herein, Mn 2+ was extracted into Mn 3 O 4 nanoparticles by oxidation...

... of spent lithium ion batteries for reuse is also an important problem because of the great recycling challenge of lithium batteries. In this work, several clustering and equalization methods are compared and summarized for different stages. The methods are divided into the traditional methods...

..., ejectors have been used in a variety of industrial fields such as refrigeration systems, power plants, and oil plants. In this work, an ejector was used to safely recycle anode tail gas in a 75 kW molten carbonate fuel cell (MCFC) system at Korea Electric Power Research Institute. In this system...