Manganese oxide was obtained by selective chemical leaching of lithium ion out from the spent LiMn2O4 electrode materials and in-situ phase transformation.The prepared manganese oxide was characterized by X-ray power ...Manganese oxide was obtained by selective chemical leaching of lithium ion out from the spent LiMn2O4 electrode materials and in-situ phase transformation.The prepared manganese oxide was characterized by X-ray power diffraction (XRD) and showed cubic λ-MnO2.The λ-MnO2 powder was found to be an effective catalyst for the synthesis of iso-amyl acetate from acetic acid and iso-amyl alcohol.The reaction results showed that when the leaching sulfuric acid concentration was 0.5 mol·L-1 and reaction time was 3 h,λ-MnO2 showed the best catalytic activity and excellent selectivity for esterification of iso-amyl acetate(yield 94.62%).展开更多
文摘Manganese oxide was obtained by selective chemical leaching of lithium ion out from the spent LiMn2O4 electrode materials and in-situ phase transformation.The prepared manganese oxide was characterized by X-ray power diffraction (XRD) and showed cubic λ-MnO2.The λ-MnO2 powder was found to be an effective catalyst for the synthesis of iso-amyl acetate from acetic acid and iso-amyl alcohol.The reaction results showed that when the leaching sulfuric acid concentration was 0.5 mol·L-1 and reaction time was 3 h,λ-MnO2 showed the best catalytic activity and excellent selectivity for esterification of iso-amyl acetate(yield 94.62%).
基金the National Natural Science Foundation of China (NSFC 20576024)Anhui Provincial Natural Science Foundation (070414165)the Excellent Young Teachers Program of the Ministry of Education of China and the Innovation Fund of Hefei UniversityofTechnology.~~