This cover highlights the innovative use of erbium chloride (ErCl₃) in tin-halide perovskite solar cells, achieving record-breaking performance. By modulating nucleation and crystallization kinetics, ErCl₃ enhances film quality, mitigates defect formation, and improves both efficiency (14.0%) and stability. This study provides a sustainable path forward for lead-free perovskites, offering a compelling alternative to lead-based counterparts.

BiOI-derived PtBi electrocatalysts for glycerol oxidation reaction were fabricated using an electrochemical method. BiOI enabled the photoelectrochemical deposition of Pt atoms, and after their conversion into PtBi, this resulted in a high mass activity of Pt. The proposed PtBi electrocatalysts effectively produce glycolate and formate from glycerol oxidation reaction in alkaline solution.

This cover visualizes the microwave-assisted synthesis of platinum-nickel nanoalloys on nitrogen-doped graphene and their practical applications such as water electrolysis and fuel cell. This research concentrates on the fast and facile synthetic procedure using microwave heating with reducing the amount of platinum and enhancing the catalytic performance by the control of lattice strain and nitrogen doping. These can lead to improved activity and durability in hydrogen evolution and oxygen reduction for hydrogen production and utilization in our daily lives.

The illustration highlights the role of the solid electrolyte interphase (SEI) in preventing lithium dendrite growth and stabilizing lithium metal. The cover showcases advancements in electrolyte design to engineer a more robust and stable SEI. This is a central theme of our review, which explores innovative approaches to achieving optimal SEI properties through tailored electrolyte formulations.

With various types of lithium salt, solvents, and additives, the structure and components of solid electrolyte interphase (SEI) can be designed. The comprehensive properties of SEI such as high mechanical stability, electronic insultation, and high ionic conductivity are closely related to uniform lithium deposition and side reaction prevention resulting in high Coulombic efficiency.

Disposable face masks pose significant environmental concerns due to their non-biodegradable nature and contribution to microplastic pollution. This research explores sustainable practices for mask reuse, emphasizing effective disinfection and charge replenishment techniques. We have demonstrated that volume charges, particularly those deeply embedded within the forbidden band introduced by a high corona bias, significantly enhance the stability and durability of filtration.

A few nanometer-sized PtNi NACs are uniformly decorated on NrGO. Structural changes are observed depending on the PtNi composition, N-doping on the graphene surface, and chemical bonding between N sites and NACs. Pt_2.6Ni NACs/NrGO exhibits the highest ORR onset potential (0.893 V) and the lowest HER overpotential at 10 mA cm⁻² (22 mV). From these results, Pt_2.6Ni NACs/NrGO is applied to both ZAB system and hydrogen collection to assess its availability.

The study demonstrates that the incorporation of erbium chloride (ErCl₃) into tin-halide perovskite solar cells (THPSCs) effectively controls nucleation and crystallization, resulting in improved film morphology. This approach significantly enhances the efficiency and stability of THPSCs, leading to higher open-circuit voltage (V_OC) and power conversion efficiency (PCE) compared to traditional devices.

High-quality 2D RP perovskite film grown along the out-of-plane direction is fabricated by the reverse-cool annealing strategy. 2D RP perovskite solar cells show high charge carrier extraction efficiency and small non-radiative open-circuit voltage loss. The champion efficiency of solar cells achieves 17.8%, which sustains 97.4% of the initial efficiency after 1000 h under the N₂ environment.

This research investigates the integration of Mn-based disordered rock-salt cathodes in all-solid-state battery systems operating from 1.5 to 4.8 V. We discuss the effects of high carbon contents required for the DRX cathodes on electrochemical performance, comparing halide and sulfide solid electrolytes. It provides new insights into the interplay among solid electrolytes, cathodes, and conductive additives.

The in-situ photo-polymerized composite polymer electrolyte (CPE) exhibits high ionic conductivity, excellent elasticity, and superior adhesion properties with uniform dispersion of LLZTO nanoparticles. This CPE achieves excellent cycling performance of Li/NCM811 full cell, maintaining a capacity retention of 95% after 200 cycles with a specific capacity of 166.7 mAh g⁻¹ under 0.5C.

Bi-based Pt electrocatalysts for glycerol oxidation reaction are derived from photoactive BiOI intermediate. The photoexcited electrons in BiOI enable direct deposition of Pt on its surface, which induces rich Pt–Bi binding through activation. The proposed Bi-based Pt electrocatalysts consist of PtBi active sites on Bi basis, result in high Pt mass activity and stability for glycerol oxidation and energy-saving hydrogen production.