Simultaneous generation of hydroxyl and hydrogen radicals from H <sup>+</sup> /OH <sup>−</sup> pairs caused by water–solid contact electrification
Fengjie Chen, Jianlin Wu, Dou Wang, Yu Xia, Qingyuan Song, Ying Liang, Pu Wang, Bolei Chen, Yong Liang, Yongguang Yin, Yawei Wang, Maoyong Song, Guibin Jiang
Abstract
surface enhances its surface electronegativity before the contact, as well as boosting charge transfer and radical generation during the contact. We propose that the simultaneous generation of hydroxyl and hydrogen radicals originates from electron gain and loss between hydroxide anions in water and hydrogen cations adsorbed on the solid surface, which are ion pairs separated by the interfacial electric field. This discovery advances our understanding of redox processes induced by contact electrification.
Topics & Concepts
RadicalHydrogenChemistryRadiochemistryMaterials scienceInorganic chemistryOrganic chemistryAdvanced Sensor and Energy Harvesting MaterialsFuel Cells and Related MaterialsConducting polymers and applications