Early achievements by studies on hydrogenases were the establishment of their electron carrier specificity and demonstration of heterolytic cleavage of [H.sub.2] on the enzyme.
(1966) The electron carrier specificities of hydrogenases of different organisms.
Recently a Japanese laboratory reported the existence of superconducting oxides that contain electron carriers. However, the material becomes superconducting only when cooled to below 30 K, making it useless for any practical HTS devices.
Replacing the lanthanum with an electron-packed rare-earth element such as neodyn-dum (Nd), he theorized, should create conditions ideal for electron carriers. He started with planar Nd (sub 2)CUO(sub 4) and doped the material with cerium (Ce), which added epical oxygens to the copper-oxygen plane.