2026-10-10T21:25:00Z https://www.scidb.cn/oai

10.57760/sciencedb.38384 2026-06-08T18:13:21Z

2026-06-08 Thermal Anchoring Effect Regulates Selective Hydrogenation of 1,4-Butynediol Catalyzed by Ni/SBA-15 doi:10.57760/sciencedb.38384 en Ni/SBA-15 catalysts were synthesized using an in situ method, and the influence of crystallization temperature on nickel utilization efficiency—a critical factor in mesoporous material design—was systematically investigated. The structural characteristics and nickel anchoring capacity were analyzed using XRD, BET, FT-IR, H2-TPR, and ICP-OES. The results demonstrated that crystallization temperature significantly affected the framework order of SBA-15 and the surface anchoring efficiency of Ni ions. Nickel utilization efficiency increased from 8.4% at 80 °C to 60.49% at 140 °C, but then decreased to 47.25% at 160 °C, indicating an optimal crystallization temperature window. This provides crucial guidance for tailoring high-performance metal-doped molecular sieves. The optimal catalyst exhibited excellent performance in the hydrogenation of 1,4-butynediol (BYD): BYD conversion reached 97.25% with 88.99% selectivity of 1,4-butenediol (BED) within 5 h; and 99.73% conversion with 87.34% selectivity of 1,4-butanediol (BDO) after 20 h reaction. These results revealed the critical role of crystallization temperature in metal utilization and provided theoretical support for designing highly active molecular sieve catalysts. Ni/SBA-15; in situ method; crystallization temperature; metal utilization Zhang Xiao He Fang Li Gang Cheng Yue Zhang Huanqian Wang Jiuling Lujiang Yin PUBLIC https://creativecommons.org/licenses/by-nc-nd/4.0/ dataset http://www.doi.org/10.16084/j.issn1001-3555.2026.01.002 Science Data Bank