Chinese Journal of Catalysis ›› 2024, Vol. 60: 253-261.DOI: 10.1016/S1872-2067(24)60017-3
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Hongyu Qua, Wende Hub, Xiangcheng Lib,*(), Rui Xub, Xiao Hanb, Junjie Lib, Yiqing Lub, Yingchun Yeb, Chuanming Wangb,*(
), Zhendong Wangb, Weimin Yanga,b,*(
)
Received:
2024-01-05
Accepted:
2024-02-28
Online:
2024-05-18
Published:
2024-05-20
Contact:
E-mail: About author:
First author contact:1Contributed equally to this work.
Supported by:
Hongyu Qu, Wende Hu, Xiangcheng Li, Rui Xu, Xiao Han, Junjie Li, Yiqing Lu, Yingchun Ye, Chuanming Wang, Zhendong Wang, Weimin Yang. Efficient hydrogenolysis of 5-hydroxymethylfurfural to 2,5-dimethylfuran over Ni-C3N4 catalysts with ultra-low Ni loading[J]. Chinese Journal of Catalysis, 2024, 60: 253-261.
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URL: https://www.cjcatal.com/EN/10.1016/S1872-2067(24)60017-3
Entry | Catalyst | HMF Conv. (mol%) | Product selectivity (mol%) | Carbon balance (%) c | |||||
---|---|---|---|---|---|---|---|---|---|
DMF | MF | MFA | DHMF | THFDM | Others b | ||||
1 | Ni-C3N4/HC | >99 | 94.2 | 3.1 | 0 | 0 | 1.9 | 0.5 | 99.7 |
2 | Ni-C3N4/C | >99 | 87.3 | 0.2 | 0.2 | 0 | 1.4 | 4.3 | 93.4 |
3 | Ni/HC | 57.4 | 47.3 | 43.3 | 1.2 | 0.7 | 1.5 | 2.1 | 96.1 |
4 | Ni/HC d | 98.8 | 81.6 | 1.7 | 0.1 | 0.1 | 3.9 | 3.7 | 91.1 |
5 | Ni-C3N4 | 9.7 | 0 | 19.6 | 0 | 69.3 | 0 | 2.0 | 90.9 |
Table 1 Hydrogenolysis of HMF to DMF over various catalysts a.
Entry | Catalyst | HMF Conv. (mol%) | Product selectivity (mol%) | Carbon balance (%) c | |||||
---|---|---|---|---|---|---|---|---|---|
DMF | MF | MFA | DHMF | THFDM | Others b | ||||
1 | Ni-C3N4/HC | >99 | 94.2 | 3.1 | 0 | 0 | 1.9 | 0.5 | 99.7 |
2 | Ni-C3N4/C | >99 | 87.3 | 0.2 | 0.2 | 0 | 1.4 | 4.3 | 93.4 |
3 | Ni/HC | 57.4 | 47.3 | 43.3 | 1.2 | 0.7 | 1.5 | 2.1 | 96.1 |
4 | Ni/HC d | 98.8 | 81.6 | 1.7 | 0.1 | 0.1 | 3.9 | 3.7 | 91.1 |
5 | Ni-C3N4 | 9.7 | 0 | 19.6 | 0 | 69.3 | 0 | 2.0 | 90.9 |
Fig. 1. TEM (a), HAADF-STEM (b,d), particle size distribution (c) and the corresponding EDX mapping images (e) of Ni-C3N4/HC sample after reduction at 500 °C.
Fig. 3. (a) Adsorption structures and energies of HMF on Ni(111), Ni3N(11-0) and NiO(110) (associative and dissociative) surfaces. (b) Energy profiles of HMF hydrogenation to DMF on Ni3N(11-0) surface at 0 K. (c) Optimized structures of key intermediates and transition states during the hydrogenolysis of HMF to DMF on Ni3N(11-0) surface.
Fig. 4. The reusability of Ni-C3N4/HC catalyst for the conversion of HMF. (a) Reaction conditions in batch reactor: HMF 0.1 g, Ni-C3N4/HC catalyst 0.1 g, THF 20 g, 190 °C, H2 1.5 Mpa, 4 h. (b) Reaction conditions in fixed-bed reactor: 0.5 wt% HMF in THF, Ni-C3N4/HC catalyst 2.75 g, 160 °C, H2 1.5 Mpa, WHSV = 9.7 h?1, gas flow rate 20 mL min?1.
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