TY - JOUR
T1 - Highly efficient and stable BaF2-supported Ru catalyst for CFC-113a hydrogenation coupling reaction
AU - Liu, Yuanyuan
AU - Dong, Li
AU - Qing, Feiyao
AU - Ji, Qingmin
AU - Quan, Hengdao
N1 - Publisher Copyright:
© 2025 The Korean Society of Industrial and Engineering Chemistry.
PY - 2026/6/25
Y1 - 2026/6/25
N2 - The development and synthesis of novel environmentally-friendly chlorofluorocarbon alternatives are in accordance with the global sustainability paradigm and represent a progressive response to contemporary technological demands. 2,3-dichloro-1,1,1,4,4,4-hexafluoro-2-butene (CFC-1316mxx) holds significant research value as a synthetic intermediate for the novel environmentally-friendly chlorofluorocarbon alternative 1,1,1,4,4,4-hexafluoro-2-butene (HFO-1336mzz). This study developed a Ru/BaF2 catalyst based on BaF2 as the support for the hydrogenation coupling of 1,1,1-trifluorotrichloroethane (CFC-113a) to synthesize CFC-1316mxx. The physical/chemical properties of Ru/BaF2 before and after reaction were analyzed by methods of XRD, BET, SEM, TEM, XPS, TG, H2-TPR, and NH3-TPD, and its catalytic performance in the reaction was also evaluated. Ru/BaF2 features suitable acidity, adequate reducibility, appropriate specific surface area and pore structure, and exceptional thermal stability. Moreover, Ru/BaF2 exhibits excellent catalytic activity, selectivity and stability, with a CFC-113a conversion rate of 93.81 % and a CFC-1316mxx selectivity of up to 96.04 %. As BaF2 may also act as a “chlorine absorber” to inhibit catalyst deactivation, the conversion rate can remain at 71.00 % with a high selectivity of 95.21 % after 100 h of use. Based on the structural analysis of catalysts and the distribution of products, the reaction mechanism was also speculated.
AB - The development and synthesis of novel environmentally-friendly chlorofluorocarbon alternatives are in accordance with the global sustainability paradigm and represent a progressive response to contemporary technological demands. 2,3-dichloro-1,1,1,4,4,4-hexafluoro-2-butene (CFC-1316mxx) holds significant research value as a synthetic intermediate for the novel environmentally-friendly chlorofluorocarbon alternative 1,1,1,4,4,4-hexafluoro-2-butene (HFO-1336mzz). This study developed a Ru/BaF2 catalyst based on BaF2 as the support for the hydrogenation coupling of 1,1,1-trifluorotrichloroethane (CFC-113a) to synthesize CFC-1316mxx. The physical/chemical properties of Ru/BaF2 before and after reaction were analyzed by methods of XRD, BET, SEM, TEM, XPS, TG, H2-TPR, and NH3-TPD, and its catalytic performance in the reaction was also evaluated. Ru/BaF2 features suitable acidity, adequate reducibility, appropriate specific surface area and pore structure, and exceptional thermal stability. Moreover, Ru/BaF2 exhibits excellent catalytic activity, selectivity and stability, with a CFC-113a conversion rate of 93.81 % and a CFC-1316mxx selectivity of up to 96.04 %. As BaF2 may also act as a “chlorine absorber” to inhibit catalyst deactivation, the conversion rate can remain at 71.00 % with a high selectivity of 95.21 % after 100 h of use. Based on the structural analysis of catalysts and the distribution of products, the reaction mechanism was also speculated.
KW - 1,1,1-trifluorotrichloroethane
KW - 2,3-dichloro-1,1,1,4,4,4-hexafluoro-2-butene
KW - Hydrogenation coupling
KW - Metal fluorides-supported catalyst
KW - Ru/BaF catalyst
UR - https://www.scopus.com/pages/publications/105025057873
U2 - 10.1016/j.jiec.2025.11.025
DO - 10.1016/j.jiec.2025.11.025
M3 - Article
AN - SCOPUS:105025057873
SN - 1226-086X
VL - 158
SP - 483
EP - 492
JO - Journal of Industrial and Engineering Chemistry
JF - Journal of Industrial and Engineering Chemistry
ER -