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Atomic Layer Deposition of a Pt-Skin Catalyst for Base-Free Aerobic Oxidation of 5-Hydroxymethylfurfural to 2,5-Furandicarboxylic Acid
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2018-02-20 00:00:00 , DOI: 10.1021/acs.iecr.7b05101 Jinshan Shen 1, 2 , Hao Chen 2 , Kequan Chen 1 , Yong Qin 3 , Xiuyang Lu 2 , Pingkai Ouyang 1, 2 , Jie Fu 2
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2018-02-20 00:00:00 , DOI: 10.1021/acs.iecr.7b05101 Jinshan Shen 1, 2 , Hao Chen 2 , Kequan Chen 1 , Yong Qin 3 , Xiuyang Lu 2 , Pingkai Ouyang 1, 2 , Jie Fu 2
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A Pt–Ni/AC bimetallic catalyst was prepared by atomic layer deposition of Pt nanoparticles on the surface of Ni/AC for base-free oxidation of 5-hydroxymethylfurfural (5-HMF) to 2,5-furandicarboxylic acid (2,5-FDCA). A comparison of the Pt–Ni bimetallic catalyst with Ni and the Pt monometallic catalyst was demonstrated by X-ray diffraction (XRD), transmission electron microscopy (TEM), and temperature-programmed desorption of CO (CO-TPD). Compared with the Ni/AC and Pt/AC (1.6 wt % Pt) catalysts, the bimetallic Pt–Ni/AC catalyst had a higher activity for the oxidation of 5-HMF to 2,5-FDCA, with only a 0.4 wt % Pt loading. A 97.5% yield of 2,5-FDCA with 100% 5-HMF conversion was obtained after 15 h at 100 °C. A mass-based activity value of 35.8 h–1 was obtained over the Pt–Ni/AC-15ALD catalyst. The combination of Pt with Ni increased the ability of Pt for C═O adsorption and oxidation, thus increasing the activity of the Pt catalyst. Finally, the catalyst showed good reusability for at least four times without any reduction in the catalytic activity.
中文翻译：
Pt皮肤催化剂的原子层沉积，用于5-羟甲基糠醛无碱好氧氧化为2,5-呋喃二甲酸
通过在Ni / AC表面原子沉积Pt纳米颗粒，将5-羟甲基糠醛（5-HMF）无碱氧化为2,5-呋喃二甲酸（2,5-），制备了Pt-Ni / AC双金属催化剂。 FDCA）。通过X射线衍射（XRD），透射电子显微镜（TEM）和程序升温脱附的CO（CO-TPD）证明了Pt-Ni双金属催化剂与Ni和Pt单金属催化剂的比较。与Ni / AC和Pt / AC（1.6 wt％Pt）催化剂相比，双金属Pt-Ni / AC催化剂对5-HMF氧化成2,5-FDCA的活性更高，只有0.4 wt％铂加载。在100°C下放置15 h后，得到100％5-HMF转化率的2,5-FDCA 27.5-FDCA产率为97.5％。基于质量的活动值为35.8 h –1是通过Pt-Ni / AC-15ALD催化剂获得的。Pt与Ni的结合增加了Pt吸附C═O和氧化的能力，从而提高了Pt催化剂的活性。最后，该催化剂显示出良好的可重复使用性至少四次，而催化活性没有任何降低。
更新日期：2018-02-21
中文翻译：
Pt皮肤催化剂的原子层沉积，用于5-羟甲基糠醛无碱好氧氧化为2,5-呋喃二甲酸
通过在Ni / AC表面原子沉积Pt纳米颗粒，将5-羟甲基糠醛（5-HMF）无碱氧化为2,5-呋喃二甲酸（2,5-），制备了Pt-Ni / AC双金属催化剂。 FDCA）。通过X射线衍射（XRD），透射电子显微镜（TEM）和程序升温脱附的CO（CO-TPD）证明了Pt-Ni双金属催化剂与Ni和Pt单金属催化剂的比较。与Ni / AC和Pt / AC（1.6 wt％Pt）催化剂相比，双金属Pt-Ni / AC催化剂对5-HMF氧化成2,5-FDCA的活性更高，只有0.4 wt％铂加载。在100°C下放置15 h后，得到100％5-HMF转化率的2,5-FDCA 27.5-FDCA产率为97.5％。基于质量的活动值为35.8 h –1是通过Pt-Ni / AC-15ALD催化剂获得的。Pt与Ni的结合增加了Pt吸附C═O和氧化的能力，从而提高了Pt催化剂的活性。最后，该催化剂显示出良好的可重复使用性至少四次，而催化活性没有任何降低。
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