- Hydrolysis of MgH2 enhanced by acetic acid for stable hydrogen generation
- 点击次数：
- 关键字：MAGNESIUM; PERFORMANCE; HYDRIDES; STORAGE; NABH4
- 摘要：Magnesium hydride (MgH2) is known for its high hydrogen yield, reaching up to 1703 mL/g through hydrolysis. However, the formation of a passive Mg(OH)2 layer impedes the reaction. To address this, acetic acid was used to enhance the hydrolysis. The experimental system achieved a nearly 98% hydrogen yield by injecting acetic acid, and a possible mechanism involving the neutralization reaction with the passivation layer was proposed. By optimizing the molar ratios of CH3COOH to MgH2 and H2O to MgH2, the hydrogen storage density of the hydrolysis reactants reached 1.43 wt%. Using these optimized parameters, a hydrogen generation setup was designed, achieving an average rate of 8.4 L/ min. Controlled addition of acetic acid enabled continuous and regulated hydrogen production. This study offers a novel strategy for designing hydrogen supply systems.(c) 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
- 卷号：50
- 期号：
- 是否译文：否
