@article{Qiu2026, 
author = {Ying Qiu and Jianchao Liu and Mingge Zhang and Yu Liang and Lei Liu and Jinxiang Dong},
title = {Ultrafine Pt-Sn intermetallic catalyst constructed in β zeolite for long-chain alkane dehydrogenation.},
year = {2026},
journal = {Nano Research},
keywords = {n-dodecane dehydrogenation, Pt-Sn catalyst, β zeolite, intermetallic sites, reduction temperature},
url = {https://www.sciopen.com/article/10.26599/NR.2026.94909180},
doi = {10.26599/NR.2026.94909180},
abstract = {The dehydrogenation of n-dodecane is industrially significant, yet Pt-Sn catalysts widely used for this reaction are often limited by poorly controlled Pt-Sn interactions and ill-defined metal chemical states. Here, a Pt-Sn/β zeolite catalyst is constructed by grafting Sn onto dealuminated β zeolite via Si–O–Sn bonds, followed by reduction-controlled Sn precipitation that drives dynamic Pt re-dispersion. XRD, HRTEM, XPS, XAFS and in situ DRIFTS confirm that this process generates well-dispersed Pt-Sn intermetallic active sites at 540 °C, with enhanced bimetallic modulation and geometric isolation. The optimized catalyst achieves a product formation rate of 0.00714 mol gPt-1 s-1. These findings establish reduction-temperature-controlled Sn precipitation as an effective strategy for tuning Pt-Sn active sites and offer a practical design principle for efficient long-chain alkane dehydrogenation catalysts.}
}