Morphology-Driven Bifunctional Activity of Layered Birnessite-Based Materials toward Oxygen Electrocatalysis - Rajesh K. Behera; Alaka P. Sahoo; Debidutta Das; Amarendra Nayak; Sikha Sayantani; Debasis Jena; Swarna P. Mantry; Kumar S. K. Varadwaj (ACS Omega)