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A kind of hydrogen production catalyst based on ru/npc-coxo and preparation method

A catalyst, sodium borohydride technology, applied in the field of hydrogen energy, can solve the problems of high cost, difficult to large-scale industrial production and the like

Active Publication Date: 2021-09-07
GUANGXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although noble metal catalysts such as Pt / CeO 2 –Co 7 Ni 2 o x ,Pd / PD-ZIF-67,Pt / 3D SiC,Pt 58 Ni 33 Au 9 ,Pt / mesoporoussilica,Ru@SiO 2 ,Ni–Ru,Rh / Ni BNPs,Co 0.8 –Ag 0.2 -B etc. have high catalytic performance, but are limited by high cost and are difficult to produce on a large scale

Method used

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  • A kind of hydrogen production catalyst based on ru/npc-coxo and preparation method
  • A kind of hydrogen production catalyst based on ru/npc-coxo and preparation method
  • A kind of hydrogen production catalyst based on ru/npc-coxo and preparation method

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Experimental program
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Effect test

Embodiment 1

[0021] One, embodiment 1: prepare Ru / NPC-Co according to the following steps x O-800℃ composite material,

[0022] (1) Synthesis of ZIF8: In the process of synthesizing ZIF8, Zn(NO 3 ) 2 ·6H 2 O (3mmol, 30mL) methanol solution and 2-methylimidazole (12mmol mg, 10mL) methanol solution. Then, 2-methylimidazole methanol solution was added to zinc nitrate methanol solution to form a mixed solution, aged at room temperature for 24 hours, and the white precipitate was collected by centrifugation, washed 3 times with methanol, and collected by centrifugation after each washing.

[0023] (2) Synthesis of ZIF-8@ZIF-67: ZIF-8 (80 mg) was ultrasonically dispersed in methanol (10 mL) for 30 min, stirred for 20 min and injected into Co(NO 3 )·6H 2 O (177mg, 3mL) in methanol and 2-methylimidazole (895mg, 3mL) in methanol. After stirring for 5 minutes, it was transferred to an autoclave and kept at 100 °C for 12 h.

[0024] (3) Synthesis of NPC-Co x O: Weigh 600mg of ZIF-8@ZIF-67 and...

Embodiment 2

[0038] Two, embodiment 2: prepare Ru / NPC-CoxO-700 ℃ composite material according to the following steps,

[0039] (1) Synthesis of ZIF-8: In the process of synthesizing ZIF-8, Zn(NO 3 ) 2 ·6H 2 O (3mmol, 30mL) methanol solution and 2-methylimidazole (12mmol mg, 10mL) methanol solution. Then, 2-methylimidazole methanol solution was added to zinc nitrate methanol solution to form a mixed solution, aged at room temperature for 24 hours, and the white precipitate was collected by centrifugation, washed 3 times with methanol, and collected by centrifugation after each washing.

[0040] (2) Synthesis of ZIF-8@ZIF-67: ZIF-8 (80 mg) was ultrasonically dispersed in methanol (10 mL) for 30 min, stirred for 20 min and injected into Co(NO 3 )·6H 2 O (177mg, 3mL) in methanol and 2-methylimidazole (895mg, 3mL) in methanol. After stirring for 5 minutes, it was transferred to an autoclave and kept at 100 °C for 12 h.

[0041] (3) Synthesis of NPC-Co x O: Weigh 600mg of ZIF-8@ZIF-67 and...

Embodiment 3

[0044] Three, embodiment 3: prepare Ru / NPC-Co according to the following steps x O-900°C composite material,

[0045] (1) Synthesis of ZIF-8: In the process of synthesizing ZIF-8, Zn(NO 3 ) 2 ·6H 2 O (3mmol, 30mL) methanol solution and 2-methylimidazole (12mmol mg, 10mL) methanol solution. Then, 2-methylimidazole methanol solution was added to zinc nitrate methanol solution to form a mixed solution, aged at room temperature for 24 hours, and the white precipitate was collected by centrifugation, washed 3 times with methanol, and collected by centrifugation after each washing.

[0046] (2) Synthesis of ZIF-8@ZIF-67: ZIF-8 (80 mg) was ultrasonically dispersed in methanol (10 mL) for 30 min, stirred for 20 min and injected into Co(NO 3 )·6H 2 O (177mg, 3mL) in methanol and 2-methylimidazole (895mg, 3mL) in methanol. After stirring for 5 minutes, it was transferred to an autoclave and kept at 100 °C for 12 h.

[0047] (3) Synthesis of NPC-Co x O: Weigh 600mg of ZIF-8@ZIF-6...

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Abstract

The invention relates to the technical field of hydrogen energy, specifically a Ru / NPC-CoxO-based hydrogen production catalyst and a preparation method. The invention contains ultra-low-load ruthenium content, and its core-shell structure is formed by ZIF-8@ZIF-67 through water Thermal and carbonization treatments obtained, including high surface area, Co-doped, synergistic catalysis between Ru and Co core-shell nanoparticles on non-Ru-based metal-catalyzed substrates lead to Ru / NPC-Co x O catalysts exhibit excellent NaBH in alkaline media 4 Hydrolysis catalytic performance and good stability.

Description

technical field [0001] The invention relates to the technical field of hydrogen energy, in particular to a Ru / NPC-CoxO-based hydrogen production catalyst and a preparation method. Background technique [0002] The growing demand for fossil fuels such as coal, oil, and natural gas is accelerating their consumption and causing major environmental concerns due to associated carbon dioxide emissions. For the sustainable development of society, it is necessary for us to solve our dependence on fossil fuels and develop alternative clean energy sources. Hydrogen has a high energy density by weight and is becoming increasingly viable as a sustainable fuel source. However, hydrogen storage remains a challenge because conventional hydrogen storage involves high pressure and complex issues. For irreversible hydrogen storage, hydrogen hydrides (such as NaBH 4 , LiAlH 4 , MgH 2 etc.) have received increasing attention in recent years due to their safety and adaptability to mild reac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/24B01J37/10B01J37/08B01J37/16B01J35/10B82Y30/00B82Y40/00C01B3/06
CPCB01J27/24B01J35/008B01J35/1004B01J37/086B01J37/10B01J37/16B82Y30/00B82Y40/00C01B3/065C01B2203/0277C01B2203/1064C01B2203/1082Y02E60/36
Inventor 杨秀林窦沙沙闫普选
Owner GUANGXI NORMAL UNIV
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