Abstract Developing cost-effective, durable, and efficient bifunctional electrocatalysts is essential for advancing green hydrogen production. Here, we report a rapid, one-step, room-temperature, corrosion-driven strategy for directly constructing nickel-iron layered double hydroxides (NiFe LDH) on nickel foam (NF), where the NF serves as both the conductive substrate and the sole Ni source. In an Fe3 + -ethylene glycol (EG) solution, controlled corrosion of the NF surface released Ni2+, enabling the in situ formation of NiFe LDH without external heating or additional Ni precursors. EG plays a dual regulatory role by moderating Fe3+ hydrolysis and increasing solution viscosity, thereby controlling corrosion kinetics, nanosheet formation, and...

Abstract Temporal knowledge graphs (TKGs) represent real-world facts evolving over time by incorporating the multirelational structure of knowledge graphs with temporal dimensions. While extensions of graph convolutional networks, such as relational and composition-based variants, have demonstrated strong capabilities in modeling graph-structured data, effectively capturing both symmetric and asymmetric relational dependencies, their application to TKG reasoning remains challenging due to the need for preserving graph topology while integrating temporal dynamics. In this study, we propose a novel approach that explicitly models the compositional interactions between entities and relations within a complex geometric space, ensuring structural consistency while accommodating diverse relational patterns....