Tunable hydrogen evolution activity by modulating polarization states of ferroelectric BaTiO<sub>3</sub>
Haifa Qiu, Tong Yang, Jun Zhou, Ke Yang, Yiran Ying, Keda Ding, Ming Yang, Haitao Huang
Abstract
We computationally reveal that HER activity on BTO is governed by polarization states, being optimal with in-plane polarization. A strain driven HER cycle on BTO between downward and in-plane polarization is proposed to overcome the Sabatier limit.
Topics & Concepts
Polarization (electrochemistry)FerroelectricityMaterials scienceInduced polarizationHydrogenCondensed matter physicsOptoelectronicsOpticsChemistryDielectricPhysicsPhysical chemistryQuantum mechanicsElectrical resistivity and conductivityElectronic and Structural Properties of OxidesFerroelectric and Piezoelectric MaterialsSemiconductor materials and devices