Study on the hydrogen generation performance and hydrolyzates of active aluminum composites

Zhenhui Liu; Fei Xiao; Weiqiang Tang; Kun Cong; Jingjing Li; Rongjie Yang; Jianwei Hao

doi:10.1016/j.ijhydene.2021.10.113

Study on the hydrogen generation performance and hydrolyzates of active aluminum composites

Zhenhui Liu, Fei Xiao, Weiqiang Tang, Kun Cong, Jingjing Li, Rongjie Yang^*, Jianwei Hao

^*Corresponding author for this work

School of Material Science and Engineering

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

In this paper, aluminum (Al) composites with low melting point metal bismuth (Bi) and bismuth oxide (Bi₂O₃) are prepared to realize great hydrogen generation capacity by the ball milling method. The hydrogen generation of Al–Bi composite reacts with water (the initial temperature is 35 °C) can reach 1120 mL/g. The Al–Bi–Bi₂O₃ produces 1140 mL hydrogen within 2 min by simply raising the initial water temperature to 55 °C. The hydrolyzates of the Al composites are collected and characterized. It indicates that the hydrolyzate of Al–Bi composite mainly includes AlOOH (boehmite), while for the Al–Bi₂O₃ the hydrolyzate is Al(OH)₃ (gibbsite). The scanning electron microscope (SEM) images suggest that the AlOOH particles have more pores than Al(OH)₃ particles, which benefit for hydrogen escaping from the hydrolyzate particles surface and for inner Al contacting with water. The Al(OH)₃ particles easily accumulate and form a dense layer on the surface of Al particles, which inhibits the hydrogen generation.

Original language	English
Pages (from-to)	1701-1709
Number of pages	9
Journal	International Journal of Hydrogen Energy
Volume	47
Issue number	3
DOIs	https://doi.org/10.1016/j.ijhydene.2021.10.113
Publication status	Published - 8 Jan 2022

Keywords

Al composites
Hydrogen generation
Hydrolytic mechanism
Hydrolyzate

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.ijhydene.2021.10.113

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Liu, Z., Xiao, F., Tang, W., Cong, K., Li, J., Yang, R., & Hao, J. (2022). Study on the hydrogen generation performance and hydrolyzates of active aluminum composites. International Journal of Hydrogen Energy, 47(3), 1701-1709. https://doi.org/10.1016/j.ijhydene.2021.10.113

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title = "Study on the hydrogen generation performance and hydrolyzates of active aluminum composites",

abstract = "In this paper, aluminum (Al) composites with low melting point metal bismuth (Bi) and bismuth oxide (Bi2O3) are prepared to realize great hydrogen generation capacity by the ball milling method. The hydrogen generation of Al–Bi composite reacts with water (the initial temperature is 35 °C) can reach 1120 mL/g. The Al–Bi–Bi2O3 produces 1140 mL hydrogen within 2 min by simply raising the initial water temperature to 55 °C. The hydrolyzates of the Al composites are collected and characterized. It indicates that the hydrolyzate of Al–Bi composite mainly includes AlOOH (boehmite), while for the Al–Bi2O3 the hydrolyzate is Al(OH)3 (gibbsite). The scanning electron microscope (SEM) images suggest that the AlOOH particles have more pores than Al(OH)3 particles, which benefit for hydrogen escaping from the hydrolyzate particles surface and for inner Al contacting with water. The Al(OH)3 particles easily accumulate and form a dense layer on the surface of Al particles, which inhibits the hydrogen generation.",

keywords = "Al composites, Hydrogen generation, Hydrolytic mechanism, Hydrolyzate",

author = "Zhenhui Liu and Fei Xiao and Weiqiang Tang and Kun Cong and Jingjing Li and Rongjie Yang and Jianwei Hao",

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AU - Liu, Zhenhui

AU - Xiao, Fei

AU - Tang, Weiqiang

AU - Cong, Kun

AU - Li, Jingjing

AU - Yang, Rongjie

AU - Hao, Jianwei

PY - 2022/1/8

Y1 - 2022/1/8

N2 - In this paper, aluminum (Al) composites with low melting point metal bismuth (Bi) and bismuth oxide (Bi2O3) are prepared to realize great hydrogen generation capacity by the ball milling method. The hydrogen generation of Al–Bi composite reacts with water (the initial temperature is 35 °C) can reach 1120 mL/g. The Al–Bi–Bi2O3 produces 1140 mL hydrogen within 2 min by simply raising the initial water temperature to 55 °C. The hydrolyzates of the Al composites are collected and characterized. It indicates that the hydrolyzate of Al–Bi composite mainly includes AlOOH (boehmite), while for the Al–Bi2O3 the hydrolyzate is Al(OH)3 (gibbsite). The scanning electron microscope (SEM) images suggest that the AlOOH particles have more pores than Al(OH)3 particles, which benefit for hydrogen escaping from the hydrolyzate particles surface and for inner Al contacting with water. The Al(OH)3 particles easily accumulate and form a dense layer on the surface of Al particles, which inhibits the hydrogen generation.

AB - In this paper, aluminum (Al) composites with low melting point metal bismuth (Bi) and bismuth oxide (Bi2O3) are prepared to realize great hydrogen generation capacity by the ball milling method. The hydrogen generation of Al–Bi composite reacts with water (the initial temperature is 35 °C) can reach 1120 mL/g. The Al–Bi–Bi2O3 produces 1140 mL hydrogen within 2 min by simply raising the initial water temperature to 55 °C. The hydrolyzates of the Al composites are collected and characterized. It indicates that the hydrolyzate of Al–Bi composite mainly includes AlOOH (boehmite), while for the Al–Bi2O3 the hydrolyzate is Al(OH)3 (gibbsite). The scanning electron microscope (SEM) images suggest that the AlOOH particles have more pores than Al(OH)3 particles, which benefit for hydrogen escaping from the hydrolyzate particles surface and for inner Al contacting with water. The Al(OH)3 particles easily accumulate and form a dense layer on the surface of Al particles, which inhibits the hydrogen generation.

KW - Al composites

KW - Hydrogen generation

KW - Hydrolytic mechanism

KW - Hydrolyzate

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VL - 47

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JO - International Journal of Hydrogen Energy

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IS - 3

ER -

Study on the hydrogen generation performance and hydrolyzates of active aluminum composites

Abstract

Keywords

UN SDGs

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