materials science, energy materials, environmental materials, nanomaterials, nanocomposites, nanotechnology, biomaterials, two-dimensional materials, porous materials, dielectrics, metamaterials, self-assembly, hierarchical materials, heterostructures, MOFs, COFs, nanotubes, nanowires, nanoparticles, carbon materials, semiconductors, superconductors, ionic conductors, mixed conductors, electrodes, electrolytes, membranes, separators, surface and interface, in situ and in-operando characterization, electrochemistry, charge transfer, defects, metals and alloys, ceramics, organics, polymers, thin films, colloids, optics, sensors, light emitting materials, photovoltaics, solar cells, photonics, batteries, fuel cells, supercapacitors, thermoelectrics, air pollution control, carbon capture, gas storage, fuel production, CO2 utilization, sustainability, catalysts, clean water, waste water treatment, desalination, modeling, simulation, density functional theory, and molecular dynamics