( i ) in situ spectroscopy of the intermediate oxygen specics in cathode rcaction of mcfc the ciarification of cathode reaction mechanism is a very important theoretical direction to improve mcfc performance and to develop new catl1ode materials 因而，本论文对于长期存有争议而未能解决的难点一酸性条件下的阴极反应机理及中间氧物种，为阴极反应机理的深入研究提供了直接而确凿的实验证据。
