文章信息/Info

Title:

Research Progress of Li-Mg-N-H System Hydrogen Storage Materials

文章編號(hào):

1674-3962(2023)02-0114-14

作者:

蔡明源; 李超; 張麗娉; 姚振東; 范美強(qiáng)

（中國計(jì)量大學(xué)材料與化學(xué)學(xué)院，浙江 杭州 310018）

Author(s):

CAI Mingyuan; LI Chao; ZHANG Liping; YAO Zhendong; FAN Meiqiang

(School of Materials and Chemistry, China Jiliang University, Hangzhou 310018, China)

關(guān)鍵詞:

儲(chǔ)氫材料; Li-Mg-N-H體系; 氨基物; 亞氨基物; 氫化物

Keywords:

hydrogen storage materials;  Li-Mg-N-H system;  amides;  imides;  hydrides

分類號(hào):

TK91

DOI:

10.7502/j.issn.1674-3962.202209046

文獻(xiàn)標(biāo)志碼:

A

摘要:

以Mg(NH2)2-2LiH為代表的Li-Mg-N-H體系儲(chǔ)氫材料因其儲(chǔ)氫容量高、吸放氫可逆、熱力學(xué)性能較為適宜等優(yōu)勢(shì)，被認(rèn)為是目前最有望實(shí)現(xiàn)車載實(shí)用化的固態(tài)儲(chǔ)氫材料之一。該體系的最大問題是吸放氫反應(yīng)的動(dòng)力學(xué)壁壘較高。綜述了Li-Mg-N-H體系主要的成分體系及儲(chǔ)氫性能、儲(chǔ)氫性能的改善和規(guī)模化應(yīng)用探索等相關(guān)研究進(jìn)展。Li-Mg-N-H體系儲(chǔ)氫性能改善的策略主要為材料納米化和催化改性，其中有效的催化改性劑包括堿金屬基化合物（不含硼氫化物）、金屬硼氫化物、過渡金屬及其化合物、碳材料等。最后,討論了該體系實(shí)現(xiàn)車載實(shí)用化需要重點(diǎn)關(guān)注的研究方向。

Abstract:

Li-Mg-N-H system hydrogen storage materials represented by Mg(NH2)2-2LiH has been considered to be one of the most promising solid�瞫tate hydrogen storage materials for on-board application, because it has high reversible hydrogen storage capacity and favorable thermodynamic properties. The biggest problem of this system is the high de��/hydrogenation kinetic barrier. In this paper, the research progress on the components design of the Li-Mg-N-H system and their hydrogen storage properties, improvement of its hydrogen storage performance and large-scale application attempts are reviewed. The strategies for improving the hydrogen storage performance of the Li-Mg-N-H system are mainly nanosizing, catalysis and doping modification. Effective catalytic modifiers include alkali metal�瞓ased compounds (not including borohydrides), metal borohydrides, transition metals and their compounds, carbon materials, etc. Finally, the future research directions of the Li-Mg-N-H system for on-board application are discussed.