Characterization of Cellulose Nanofibrils Prepared by Direct TEMPO-Mediated Oxidation of Coffee Grounds. - Zhang, Yujie; Zhao, Yankai; Zhao, Zhuang; Shan, Mengmeng; Xu, Bochen; Xue, Haoquan; Xu, Junxuan; Wu, Fan; He, Qiang (Journal of Polymer Materials, 2026)