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Ru/NPC-CoxO based hydrogen production catalyst and preparation method

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

Active Publication Date: 2019-12-03
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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  • Ru/NPC-CoxO based hydrogen production catalyst and preparation method
  • Ru/NPC-CoxO based hydrogen production catalyst and preparation method
  • Ru/NPC-CoxO based hydrogen production catalyst and preparation method

Examples

Experimental program
Comparison scheme
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, 30 mL) 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 an...

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 sources and particularly relates to a Ru / NPC-CoxO based hydrogen production catalyst and a preparation method. The catalyst contains ultralow loaded ruthenium content, and a core-shell structure of the catalyst is obtained from ZIF-8@ZIF-67 through hydrothermal and carbonizing treatment and has a large surface area; and Co is doped ona non-ruthenium-based metal catalyzed matrix, and the Ru / NPC-CoxO catalyst shows excellent NaBH4 hydrolysis catalysis performance in an alkaline medium and has good stability due to synergistic catalysis among Ru-Co core-shell nanoparticles.

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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IPC IPC(8): B01J27/24B01J37/10B01J37/08B01J37/16B01J35/10B82Y30/00B82Y40/00C01B3/06
CPCB01J27/24B01J37/10B01J37/086B01J37/16B82Y30/00B82Y40/00C01B3/065C01B2203/1064C01B2203/1082C01B2203/0277B01J35/397B01J35/61Y02E60/36
Inventor 杨秀林窦沙沙闫普选
Owner GUANGXI NORMAL UNIV
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