Abstract This study presents a combined experimental–theoretical approach to understanding and optimizing CrOx-based self-rectifying memristor (SRM) for neuromorphic computing and provides a promising platform for selector-free, low-power crossbar arrays. By using a stencil-assisted DC sputtering technique, a 16 × 16 crossbar array is fabricated and exhibits reliable analog resistive switching, minimal sneak current (≈150 nA), and an excellent rectification ratio up to 2.56 × 103, demonstrating excellent scalability and array-level uniformity. Charge–voltage measurements reveal capacitor-coupled behavior, including nonlinear, time-dependent charge accumulation. The memristor supports key synaptic functions such as long-term potentiation/ depression (LTP/LTD) and excitatory postsynaptic current modulation, which is tunable...

Abstract Catalytic materials for water splitting must possess pivotal characteristics such as cost-effectiveness, robust stability, and high performance toward the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). In this study, we utilized a designed Mott–Schottky material, Au/Co3O4, developed in conjunction with a low-cost and robust material: carbon cloth. The findings revealed that 30 min of ultraviolet exposure is optimal for depositing Au nanoparticles, achieving the best balance between maximizing the Au loading content and minimizing the potential photochemical corrosion of Co3O4. The CC-30 material exhibited low overpotentials of 121 mV for the HER and 160 mV for the...