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A series of spinel-type oxides LiMn 2-X Co X O 4 (X=1.0, 1.2, 1.4, 1.6) are synthesized by an improved amorphous citric precursor (ACP) method. Their specific surface areas are measured by the Brunauer-Emmet-Teller (BET) method, and their particle agglomerates are studied by scanning electron microscopy (SEM). Their electrocatalytic performances are characterized...
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