§ Longcheng Zhang and Jie Liang contributed equally to this work. Benzoate anions-intercalated NiFe-LDH nanosheet on carbon cloth (BZ-NiFe-LDH/CC) behaves as a highly efficient and durable electrocatalyst for alkaline seawater oxidation. In alkaline seawater, it attains the current density of 500 mA cm -2 at a low overpotential of 610 mV for 100-h uninterrupted electrolysis with no obvious structural change, reflecting significantly boosted activity and resistance toward chlorine species corrosion.

The sustainable production of NH3 through ambient electrocatalytic N2 reduction reaction (NRR) requires the ingenious design of efficient electrocatalysts. Herein, plasma-etched Ti2O3 with oxygen vacancies (OV-Ti2O3) is reported as an...

Direct electrosynthesis of H2O2 via a two-electron oxygen reduction reaction (2e– ORR) under ambient conditions is emerging as a promising solution toward on-site applications for the replacement of the energy-consuming, waste-intensive, and indirect anthraquinone process. To date, state-of-the-art 2e– ORR catalysis is mostly performed with transition-metal-based materials, while main-group element-based catalysts are much less established, for which there is an urgent need of proper understanding. Herein, we report a conductive two-dimensionally layered Mg3(hexaiminotriphenylene)2 electrocatalyst for selective hydrogenation of O2 to synthesize H2O2 (selectivity >90%) with a robust high catalytic efficiency. In situ spectroscopic monitoring of the catalytic reactions and kinetic studies not only illustrate the reaction mechanisms on Mg3(hexaiminotriphenylene)2 but confirm that the Mg2+ center serving as the real active site is responsible for the critical intermediate OOH* forming event. Additionally, in-depth density functional theory calculations further discuss the excellent activity and selectivity of Mg3(hexaiminotriphenylene)2 for H2O2 production.

3T high-resolution MRI combined with DSA offered clear visualization of vessel wall features and accurate assessment of the vessel lumen in IDAs. This combined approach would be highly useful for understanding the underlying pathological status of IDAs and in guiding treatment choices.