A solid-state polymer electrolyte membrane is formed by blending poly(vinylidene fluoride-co-hexafluoropropylene) with the synthesized copolymer of poly(methyl methacrylate-co-1-vinyl-3-butyl-imidazolium bis(trifluoromethanesulfonyl)imide, in which lithium bis(trifluoromethane)sulfonimide molecules are applied as the source of lithium ions. The accordingly formed membrane that contains 14 wt.% of P(MMA-co-VBIm-TFSI), 56 wt.% of PVDF-HFP, and 30 wt.% of LiTFSI manifests the best electrochemical properties, achieving an ionic conductivity of 1.11 × 10⁻⁴ S·cm⁻¹ at 30 °C and 4.26 × 10⁻⁴ S·cm⁻¹ at 80 °C, a Li-ion transference number of 0.36, and a wide electrochemical stability window of 4.7 V (vs. Li/Li⁺). The thus-assembled all-solid-state lithium-ion battery of LiFePO₄/SPE/Li delivers a discharge specific capacity of 148 mAh·g⁻¹ in the initial charge–discharge cycle at 0.1 C under 60 °C. The capacity retention of the cell is 95.2% after 50 cycles at 0.1 C and the Coulombic efficiency remains close to 100% during the cycling process.

Hydrogen production from the decomposition of ammonia is considered an effective approach for addressing challenges associated with hydrogen storage and transportation. However, their relatively high energy consumption and low efficiency hinder practical multi‐scenario applications. In this study, Y₂O₃‐stabilized catalysts with Co‐loaded onto porous nitrogen‐doped carbon (Y₂O₃–Co/NC) are synthesized by pyrolysis of Y(NO₃)₃‐modified ZIF‐67 under an inert atmosphere, followed by annealing in a reducing environment. The introduction of Y₂O₃ enhanced the recombination and desorption of N atoms and facilitated the gradual dehydrogenation of NH_x on the catalyst surface, resulting in improved catalytic activity for the thermal decomposition of ammonia. Benefitting from the electron‐donating properties of Y₂O₃ and N‐doped carbon, the optimized catalyst achieved a remarkable NH₃ conversion efficiency of 92.3% at a high gas hourly space velocity of 20 000 cm³··h⁻¹ with an encouraging H₂ production rate of 20.6 mmol··min⁻¹ at 550 °C. Moreover, the synthesized catalyst undergoes a fast‐dynamic reconstruction process, resulting in exceptionally stable catalytic activity during the thermal decomposition of ammonia, rendering it a promising candidate for carbon‐free energy thermocatalytic conversion technology.

Green hydrogen is an effective energy countermeasure for global climate change and promoting the energy transition and CO_x-free hydrogen production from ammonia decomposition provides an economic benefit of hydrogen storage and transportation which garnering widespread attention. In this study, the catalyst consisting of highly dispersed Ru nanoparticles with amorphous Pr₂O₃ loaded on carbon supports was synthesized by the annealing of hybrid precursor in the presence of Pr and Ru ions. Benefitted from the optimized electronic structure of Ru nanoparticles stimulated by amorphous Pr₂O₃ and carbon supports, the catalyst exhibits enhanced capability of electronic transmission which promoting the recombination and desorption of nitrogen atoms, ultimately improving the catalytic activity during the thermal ammonia decomposition. The prepared catalyst achieved a remarkable ammonia conversion rate of 99% with a hydrogen production rate of 27.7 mmol·g_cat⁻¹·min⁻¹(25,000 mL·g_cat⁻¹·h⁻¹, 500℃), an exceptional stability of catalytic activity with a degradation of less than 3% after 200 h at a space velocity of 30,000 mL·g_cat⁻¹·h⁻¹ under 500℃, further facilitating the development of more efficient hydrogen production from thermal catalytic ammonia decomposition.