Unlocking the Triboelectric Potential of Hydrogen‐Bonded Organic Framework via a Lignocellulose Bridging Network for High‐Output Nanogenerators

ABSTRACT The emergence of distributed micro‐power systems demands sustainable and high‐performance triboelectric materials. Hydrogen‐bonded organic frameworks (HOFs) offer a promising platform with structurally tunable polarity; their practical application in triboelectric nanogenerators (TENGs) is hindered by poor processability and the difficulty in forming effective triboelectric interfaces. This work reports a composite aerogel designed to bridge this gap by synergistically integrating the versatile halogen‐anion HOF (HA‐HOF) with the structural advantages of lignocellulosic matrix derived from alkaline peroxide mechanical pulp (APMP). The robust, naturally derived 3D network acts as an ideal scaffold, hosting HA‐HOF and creating a “bridge structure” that builds an electron transfer “highway” within the material, thereby significantly facilitating charge separation and transfer during friction. Simultaneously, the introduction of strong electron‐withdrawing groups (bromine and fluorine functional groups) into HA‐HOF@APMP aerogel (HA‐HOF@APMPA) has effectively enhanced the negative friction polarity and endowed it with excellent versatility, including fluorescence, hydrophobicity, and flame retardancy. The resulting HA‐HOF@APMPA‐based TENG (HAA‐TENG) can generate an open‐circuit voltage of 158 V, short‐circuit current of 2.8 µA, and transfer charge of 54 nC, representing enhancements of 172%, 103%, and 135%, respectively, over the pristine APMPA‐based TENG. The HAA‐TENG sensor is successfully employed for monitoring human joint motion and gait patterns.