Improved Ammonia Synthesis and Energy Output from Zinc-Nitrate Batteries by Spin-State Regulation in Perovskite Oxides.

ABSTRACT: Electrocatalytic nitrate reduction to ammonia (eNRA) is a promising route toward environmental sustainability and clean energy. However, its efficiency is often limited by the slow conversion of intermediates due to spin-forbidden processes. Here, we introduce a novel A-site high-entropy strategy to develop a new perovskite oxide (La_0.2Pr_0.2Nd_0.2Ba_0.2Sr_0.2)CoO_3-δ (LPNBSC) for eNRA. The LPNBSC possesses a higher concentration of high-spin (HS) cobalt-active centers, resulting from an increased concentration of [CoO₅] structural motifs compared to conventional LaCoO₃. Consequently, this material exhibits a significantly improved electrocatalytic performance toward ammonia (NH₃) production, resu

SUBMITTER: Guo H 

PROVIDER: S-EPMC11783523 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature