Year: 2025
Type: article
Abstract: ABSTRACT The inexorable rise in atmospheric concentrations of sulfur hexafluoride (SF 6 ), which has a global warming potential (GWP) approximately 24,300 times that of CO 2 , necessitates the urgent development of efficient catalytic emission reduction strategies. In this study, we selected three anionic ligands to modulate the charge state of zirconium (Zr), thereby anchoring ZrC, ZrN, and ZrO 2 domains on a conductive SiC carrier. Among the prepared composites, ZrC–SiC exhibits the highest degradation capacity of 986.5 mL g −1 at 500°C, whereas the ZrN‐ and ZrO 2 ‐based analogues exhibit significantly lower activities. X‐ray diffraction and photoelectron spectroscopy confirm the formation of intimate ZrC/SiC interfaces, and density‐functional‐theory calculations attribute the superior performance to strong electronic interactions that facilitate both SF 6 adsorption and subsequent S–F bond cleavage. This charge‐regulation strategy highlights the critical role of electronic metal–support interactions in governing catalytic performance and offers a scalable route toward eliminating potent fluorinated greenhouse gases.
Source: Chemistry - An Asian Journal
Authors: Shan Zhu, Fengxiang Ma, Boxu Dong, Yaru Zhang, Tao Lin, Jun Cao, Wei Liu, Yue Zhao, Jiantao Zai, Xuefeng Qian
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
SDG: Climate action
Open Access status: bronze
OpenAlex ID: W4415946224