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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Enhanced catalytic combustion of complex VOCs over Ru/Ni-HAP catalyst
T2 - Insights into the synergic effects of Ru and Ni species
AU - Wang, Yu
AU - Jiang, Yijun
AU - Yuan, Yangyang
AU - Xu, Li
AU - Sun, Wanting
AU - Wu, Si
AU - Qingmiao, Wang
AU - Hu, Ning
AU - Wang, Li
PY - 2025/1/5
Y1 - 2025/1/5
N2 - In this study, Ni was severed as a promoter and impregnated on hydroxyapatite (HAP) to prepare a Ni-doped HAP support, and then Ru was highly dispersed onto the Ni-HAP through urea precipitation method. The synergistic effects between Ru and Ni caused a reduction in the particle size of Ru nanoparticles and an increased Ru4+/Ru0 ratios, which was primarily attributed to the strong interaction between the active components and functional groups of OH- and PO4 3-. Meanwhile, Ru/Ni-HAP possessed the highest amount of medium-strength acid sites and relatively low reduction temperatures, indicating the critical balance between acidity and redox capability. Ru/Ni-HAP exhibited superior activity with complete conversion of toluene at 280 °C and DCM at 400 °C, respectively, and such high activity can be maintained throughout the stability tests. Besides, optimal catalytic performance was observed under 600 ppm concentrations of toluene and DCM with a space velocity of 40,000mL(g·h)-1. These findings can provide valuable insights for the development of chlorine-resistant catalysts with promising application prospects.
AB - In this study, Ni was severed as a promoter and impregnated on hydroxyapatite (HAP) to prepare a Ni-doped HAP support, and then Ru was highly dispersed onto the Ni-HAP through urea precipitation method. The synergistic effects between Ru and Ni caused a reduction in the particle size of Ru nanoparticles and an increased Ru4+/Ru0 ratios, which was primarily attributed to the strong interaction between the active components and functional groups of OH- and PO4 3-. Meanwhile, Ru/Ni-HAP possessed the highest amount of medium-strength acid sites and relatively low reduction temperatures, indicating the critical balance between acidity and redox capability. Ru/Ni-HAP exhibited superior activity with complete conversion of toluene at 280 °C and DCM at 400 °C, respectively, and such high activity can be maintained throughout the stability tests. Besides, optimal catalytic performance was observed under 600 ppm concentrations of toluene and DCM with a space velocity of 40,000mL(g·h)-1. These findings can provide valuable insights for the development of chlorine-resistant catalysts with promising application prospects.
U2 - 10.1016/j.jallcom.2024.177610
DO - 10.1016/j.jallcom.2024.177610
M3 - Journal article
VL - 1010
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
M1 - 177610
ER -