Graphene-based electrocatalysts have recently attracted considerable research interest because of the abundant choices they present, with tunable and diverse optical, electronic and chemical properties.

Graphical abstract depicting the e-CO ₂ R into valuable products using a specialized electrode setup. This process offers a sustainable approach to reducing greenhouse gas emissions and combating global warming.

ZSM-5 was economically synthesized with red mud (RM) and industrial sodium silicate (ISS) in a tetrapropylammonium bromide (TPABr)–glucose dual-template system. The roles of glucose, Fe and Ca in RM on the formation of ZSM-5 were investigated. The catalytic performances of the resultant ZSM-5 were tested by cracking waste plastics. It was found that the formation of ZSM-5 was attributed to a synergistic effect between TPABr and glucose. The addition of glucose decreased the pH value in the crystallization solution and thus promoted the crystallization effect. Glucose acted as a hard template to generate mesopores. Fe atoms were partly distributed in the framework and partly adsorbed in the pores of ZSM-5, and helped to generate more Lewis acid sites. Ca atoms were mainly adsorbed in the pores of ZSM-5, and showed an inhibitory effect on the formation of zeolites. The synthesized ZSM-5 showed a weakly acidic and mesoporous structure and achieved an enhanced effect on producing gaseous products (gas yield: 85.3%), especially light olefins (C _2–4) (selectivity: 77.1%) from cracking of low density polyethylene at 500 °C. The long-term cracking experiment showed that the synthesized ZSM-5 is superior in converting waste plastics to light olefins (ethylene and propene) than the commercial ZSM-5.

The emergence of high‐energy lithium‐ion batteries has raised an urgent need for crucial electrode materials, particularly for anode. Nevertheless, a significant obstacle hindering the actual application of these technologies is due to the occurrence of capacity degradation during cycles and subpar rate performance. A hydrothermal approach is used to easily synthesize bismuth oxide nanocomposite (Bi₂O₃@Ti₃C₂) by establishing chemical bonding. Single‐crystal bismuth oxide (Bi₂O₃) nanoparticles, averaging 80 nm in size, are evenly distributed at Ti₃C₂ nanosheets surface. In comparison to agglomerated pristine Bi₂O₃ nanoparticles, the composite nanostructure enhances porosity and electrical conductivity of the composite anode material. The electrochemical efficiency of the Bi₂O₃@Ti₃C₂ nanocomposite material is remarkable, as evidenced by its initial cycling capacity of 704 mAh g⁻¹ at 200 mA g⁻¹ current density and a capacity retention of 598 mAh g⁻¹ over 100 charge/discharge cycles. The high electrical conductivity of Ti₃C₂ MXene nanosheets significantly improves the overall electrochemical properties of the Bi₂O₃@Ti₃C₂ nanocomposite material. Density functional theory (DFT) calculations and X‐ray photoelectron spectroscopy (XPS) measurements have further confirmed that charge transfer to active Bi₂O₃ nanoparticles is efficiently promoted within such composite material during lithiation/delithiation processes. The nanocomposite of Bi₂O₃@Ti₃C₂ exhibits significant potential for electrochemical energy storage applications.