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Congratulations to Yongqi Pan（潘永祺）et. al. for new publication in Applied Surface Science！
Congratulations to Yongqi Pan（潘永祺）et. al. for new publication in Applied Surface Science！
Published On：2025-11-19
Dual synergistic and efficient catalytic activity of highly dispersed CuCo sulfides for the A3 reaction
Y. Pan, J. Yang, H. Feng, F. Shi, Y. Liu, X. Zheng, G. Rupprechter, Y. Deng, J. Wang
Applied Surface Science, 720 (2026) 165227. https://doi.org/10.1016/j.apsusc.2025.165227.
Free access until Jan-07-2026: https://authors.elsevier.com/a/1m7ehcXa-CET7
Highlights
- •CuCo/S nanocatalysts with highly dispersed Cu and Co were obtained by sulfurizing CuCo-MOF.
- •Surface Cu:Co ratio was increased by 20 times after sulfurizion (CuCo/S: 8.33, CuCO-MOF: 0.404).
- •Active site Cu+/0 in CuCo/S was highly increased, forming effectively synergistic Cu-Co sites.
- •CuCo/S showed excellent catalytic ability for propargylamine synthesis, up to 204 mmol·g−1·h−1.
- •CuCo/S showed excellent recoverability, with a conversion retention of 85.9% after 5 cycles.
Abstract
Highly active CuCo/S catalysts were designed for the propargylamine synthesis via the green A3 coupling reaction, in which the only by-product was H2O. The CuCo/S catalysts were derived from Prussian blue structured CuCo-MOF by in situ sulfurization, and the exposure of surface Cu+/Cu0 active sites was strongly improved after the sulfurization treatment (Cu:Co atomic ratio: 0.404(MOF), 8.33(CuCo/S)). The CuCo/S catalyst showed excellent catalytic performance during propargylamine synthesis, and the conversion rate reached to 204 mmol·g−1·h−1. Moreover, the Cu and Co elements were highly dispersed in the CuCo/S composite, with catalytic performance superior to the physical mixture of CuS and CoS (CuS/CoS) in the same ratio. Control experiments indicated that the synergistic effect of multiple active sites in CuCo/S significantly promoted the activation of the C≡H bond at the alkyne terminus. Furthermore, the CuCo/S catalyst exhibited good stability with 85.9 % conversion after five cycles, with substrate expansion experiments confirming its broad applicability and sustainability.
