Efficient H2O2 production from a SrTiO3-based thermoelectrocatalyst for harvesting low-grade waste heat

Building on the concept of a thermoelectrocatalyst (TECatal), we propose a simple yet efficient TECatal material, vacancy defect engineered SrTiO3, for stable H2O2 production under temperature gradients. A solid-phase reaction was applied to introduce oxygen vacancies, generating free electrons and inducing a thermoelectric response in SrTiO3. This approach achieved an impressive H2O2 production rate of approximately 764 mu mol L-1 g-1 h-1 at a temperature gradient of 130 degrees C conceiving the feasibility of the thermoelectrocatalyst for harvesting low-grade waste heat.