Well shaped single crystalline Mn3O4 nano-octahedra with exposed highly active {011} facets at different particle sizes have been synthesized and used as anode materials for lithium ion batteries. The electrochemical results show that the smallest sized Mn3O4 nano-octahedra show the best cycling performance with a high initial charge capacity of 907 mA h g(-1) and a 50th charge capacity of 500 ...

_____________________________________________________________________ According to rational choice theory, people will choose their careers, level of work effort or investment based in part on their expectations of success. But are people’s expectations of their likelihood of success accurate? Evidence accumulated by psychologists suggest that on average people underestimate their risks and ove...