Accepted Manuscript Metal-free nitrogen-doped carbon nanoribbons as highly efficient electrocatalysts for oxygen reduction reaction Jinzhen Huang, Jiecai Han, Tangling Gao, Xinghong Zhang, Jiajie Li, Zhenjiang Li, Ping Xu, Bo Song PII: S0008-6223(17)30819-9 DOI: 10.1016/j.carbon.2017.08.033 Reference: CARBON 12295 To appear in: Carbon Received Date: 11 May 2017 Revised Date: 4 July 2017 Accepted Date: 19 August 2017 Please cite this article as: J. Huang, J. Han, T. Gao, X. Zhang, J. Li, Z. Li, P. Xu, B. Song, Metal-free nitrogen-doped carbon nanoribbons as highly efficient electrocatalysts for oxygen reduction reaction, Carbon (2017), doi: 10.1016/j.carbon.2017.08.033. This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.