Utilizing in-situ polymerization of pyrrole to fabricate composited hollow nanospindles for boosting oxygen evolution reaction Yixin Chen, Lin Shen, Congcong Wang, Siyang Feng, Nan Zhang, Siyuan Xiang, Tanglue Feng, Mingxi Yang, Kai Zhang*, Bai Yang Applied Catalysis B: Environmental 2020, 274, 119112.