Effects of Ti- and Nb-based transition element from single to multiple compound oxides and carbon-based composite additives on Mg-MgH2 hydrogen storage material

被引：2

作者：

Xiao, Li-Rong ^{[1
]}

Chen, Chen ^{[1
]}

Wang, Shuo ^{[2
]}

Dai, Zi-Yin ^{[1
]}

Kimura, Hideo ^{[1
]}

Ni, Cui ^{[1
]}

Hou, Chuan-Xin ^{[1
]}

Sun, Xue-Qin ^{[1
]}

Guo, Si-Jie ^{[3
]}

Du, Wei ^{[1
,4
]}

Xie, Xiu-Bo ^{[1
]}

机构：

[1] Yantai Univ, Sch Environm & Mat Engn, Yantai 264005, Peoples R China

[2] Bosch HUAYU Steering Syst Yantai Co Ltd, Ytp MFE, Yantai 264005, Peoples R China

[3] Univ Tennessee Knoxville, Knoxville, TN 37996 USA

[4] Shandong Univ Aeronaut, Shandong Key Lab Ecoenvironm Sci Yellow River Delt, Binzhou 256603, Peoples R China

来源：

TUNGSTEN | 2025年 / 7卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Mg-based hydrogen storage alloys; Transition metal elements; Catalysts; Solid hydrogen storage; SORPTION KINETICS; AT-C; MGH2; NB2O5; MECHANISM; HYDRIDE; NANOPARTICLES; PERFORMANCE; DESORPTION; EVOLUTION;

D O I：

10.1007/s42864-024-00287-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

MgH(2 )is considered as a promising hydrogen storage material for its high hydrogen storage capacity, low cost and abundant resource advantages. However, the low kinetics and high enthalpy formation of MgH2 limit its wide application. From the perspective of adding catalysts to enhance the hydrogen storage properties of Mg-MgH2, this article elaborated the main catalysts based on Ti and Nb transition elements, including single oxide catalysts, binary oxides catalysts (combined with Ni, Na, Sr, V, etc.), multiple catalysts bound to carbon, and composite catalysts with Ti and Nb elements combined with MXene phase. Moreover, the main pathways of various catalysts to reduce the reaction activity and broaden the hydrogen desorption channel were also analyzed. The Ti-based catalysts can enhance the reactive sites of the matrix by forming multivalent states, while Nb-based catalysts broaden the hydrogen reaction channels by forming tiny Nb. By improving the size structure and enhancing the grain size stability, combined with carbon materials should be the future considerations.

引用

页码：32 / 49

页数：18