Ca2+置换La3+的量对La-Ca-Co-O氧还原催化活性和电导率的影响
Ca2+치환La3+적량대La-Ca-Co-O양환원최화활성화전도솔적영향
Effect of amount of Ca2+ substituting La3+ on catalysis activeness of La-Ca-Co-O to oxygen reduction and its conductivity
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