Hierarchical NiCo2O4 spinel nanowire array (H-NCO-NWA) electrocatalysts have been prepared through a facile template-free co-precipitation route. The as-prepared H-NCO-NWA exhibits a mesoporous (ca. 8 nm) structure and a high specific surface area of 124 m2 g−1. The assembled Li–air batteries presented lower overpotentials, reasonable specific capacity, and enhanced cyclability.
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Lu et al. (2014) studied this question.
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