@article{oai:nagasaki-u.repo.nii.ac.jp:00014112, author = {Iwamoto, Masakazu and Ohura, Shozo and Furukawa, Hiroshi and Nagano, Hiromi and Kagawa, Shuichi}, issue = {18}, journal = {長崎大学工学部研究報告, Reports of the Faculty of Engineering, Nagasaki University}, month = {Jan}, note = {Two distinct Cu(II) to Cu(I) processes have been discernible in temperature programmed reduction with hydrogen. The reduction peak with a maximum around 573-593 K is proposed to correspond to the reduction of Cu2+-02--Cu2+ species locating in sodalite cages. Another peak around 473-513 K has been attributed to the reduction of unpaired Cu(II) ions., 長崎大学工学部研究報告, (18), pp.89-92; 1982}, pages = {89--92}, title = {REDUCTION MECHANISM OF COPPER IONS EXCHANGED IN Y TYPE ZEOLITES}, year = {1982} }