Hierarchical porous TPU@CNT sponge for high-performance triboelectric nanogenerators via dual contact electrification and self-powered sensing applications - Yinyin Wang; Bingqiang Yan; Yinyun Zhou; Gang Zhao; Qiulu Liu; Haoran Liu; Zhaoxing Lin; Xiangfang Peng; Tingjie Chen (Chemical Engineering Journal, 2025)