Organic hydrogen storage liquid hydrogenation or dehydrogenation catalyst with performances strengthened by metal hydrides, and preparation method thereof
A dehydrogenation catalyst and hydride technology, applied in the field of hydrogen storage technology and catalysis, can solve problems such as restricting applications, and achieve the effects of reducing hydrogen storage costs, improving performance, and reducing costs
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0025] The preparation method of a metal hydride-enhanced organic hydrogen storage liquid hydrogenation or dehydrogenation catalyst of the present invention, the specific preparation steps are:
[0026] 1) Select hydrogenation or dehydrogenation catalysts for organic hydrogen storage liquids;
[0027] 2) Prepare the target catalyst: Grind the hydrogenation or dehydrogenation catalyst of the organic hydrogen storage liquid selected in step 1) and the metal hydride in a glove box at a mass ratio of 1:0.5-4 for about 5 minutes to obtain metal hydrides with enhanced performance Organic hydrogen storage liquid hydrogenation or dehydrogenation catalyst.
[0028] Wherein, the hydrogenation or dehydrogenation catalyst of the organic hydrogen storage liquid selected in the present invention can be obtained by self-made or purchased.
[0029] The catalytically active component can be selected from one or more of Fe, Co, Ni, Ru, Rh, Pd, Co-B, and Ni-B.
[0030] Hydrogenation or dehydro...
Embodiment 1
[0036] 1) Add 1.0 g γ-Al 2 o 3 and 110.8 mg NiCl 2 Disperse in 20 mL of THF, stir for 12 hours and then remove the solvent, then heat-treat the obtained sample in a closed tube furnace. The treatment procedure is: evacuate, heat to 120 °C, keep for 2 h; heat up to 450 °C, keep for 1 h; refill with 4 MPa H 2 , keep 2h; vacuumize, then cool to 320 ℃, then fill with 4MPa H 2 , kept for 12 h, cooled to room temperature, and Ni / Al 2 o 3 .
[0037] 2) will YH 3 Ball milling was carried out in a hydrogen atmosphere of 4 bar for 10 h with a ball-to-material ratio of 4:1 and a rotational speed of 250 rpm.
[0038] Ni / Al in the glove box 2 o 3 and YH 3 Mix according to the mass ratio of 1:4 and grind for 5 min to obtain Ni / Al 2 o 3 -YH 3 catalyst. The catalyst Ni / Al 2 o 3 -YH 3 The X-ray diffraction spectrum of the figure 1 . The catalyst Ni / Al 2 o 3 -YH 3 The transmission electron microscope pictures of the figure 2 .
[0039] For the catalyst and the metal hyd...
Embodiment 2
[0042] Will YH 3 Ball milling was carried out in a hydrogen atmosphere of 4 bar for 10 h with a ball-to-material ratio of 4:1 and a rotational speed of 250 rpm.
[0043] Place the purchased Pd / C catalyst and YH in the glove box 3 Mix according to the mass ratio of 1:1 and grind for 5 min to obtain Pd / C-YH 3 catalyst.
[0044] For the catalyst Pd / C-YH 3 and metal hydride-free Pd / C catalysts N -Ethylcarbazole hydrogenation and dodecahydrogenation N - Ethyl carbazole dehydrogenation performance was evaluated. For the hydrogenation reaction, under the same conditions (150 °C, 3 MPa H 2 , 90 h), Pd / C-catalyzed hydrogenation reaction dodecahydrogenation N - The yield of ethylcarbazole is less than 1%, while Pd / C-YH 3 Catalytic hydrogenation reaction dodecahydrogenation N - The yield of ethyl carbazole exceeds 95%; for the dehydrogenation reaction, under the same conditions (200 °C, 0.1 MPaH 2 , 2 h), the Pd / C catalyzed dehydrogenation reaction N - The productive rate of e...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More