Boron carbonitride with tunable B/N Lewis acid/base sites for enhanced electrocatalytic overall water splitting
Dong Shi, Bin Chang, Zizheng Ai, Hehe Jiang, Fuzhou Chen, Yongliang Shao, Jianxing Shen, Yongzhong Wu, Xiaopeng Hao
Abstract
O, respectively, we have designed and synthesized self-supporting BCN materials with different enrichment degrees of B/N (B-BCN/N-BCN) using carbon paper as substrate. Furthermore, by adjusting the contents of B and N, the optimum electrocatalytic performance of overall water splitting was obtained in which the onset voltage of water splitting on B-BCN//N-BCN was lower than 1.60 V. Our strategy of synthesizing materials with different heteroatom enrichment to improve the electronic environment of materials has opened up new opportunities for developing efficient metal-free electrocatalysts.
Topics & Concepts
Lewis acids and basesBoronAdsorptionWater splittingBase (topology)Materials scienceDensity functional theoryChemistryInorganic chemistryChemical engineeringCatalysisPhysical chemistryComputational chemistryOrganic chemistryMathematical analysisEngineeringMathematicsPhotocatalysisElectrocatalysts for Energy ConversionAdvanced Photocatalysis TechniquesAmmonia Synthesis and Nitrogen Reduction