%0 Journal Article %T “Protrusions” or “holes” in graphene: which is the better choice for sodium ion storage? %A Yang, Yijun %A Tang, Dai-Ming %A Zhang, Chao %A Zhang, Yihui %A Liang, Qifeng %A Chen, Shimou %A Weng, Qunhong %A Zhou, Min %A Xue, Yanming %A Liu, Jiangwei %A Wu, Jinghua %A Cui, Qiu Hong %A Lian, Chao %A Hou, Guolin %A Yuan, Fangli %A Bando, Yoshio %A Golberg, Dmitri %A Wang, Xi %J Energy & Environmental Science %V 10 %N 4 %P 979-986 %@ 1754-5692 %D 2017-04-12 %I The Royal Society of Chemistry %~ DeepDyve