Enhanced hydrogen storage properties of high-loading nanoconfined LiBH4-Mg(BH4)2 composites with porous hollow carbon nanospheres

被引：43

作者：

Zheng, Jiaguang ^{[1
,2
,3
]}

Yao, Zhendong ^{[1
,2
]}

Xiao, Xuezhang ^{[1
,2
]}

Wang, Xuancheng ^{[1
,2
]}

He, Jiahuan ^{[1
,2
]}

Chen, Man ^{[1
,2
]}

Cheng, Hao ^{[1
,2
]}

Zhang, Liuting ^{[3
]}

Chen, Lixin ^{[1
,2
,4
]}

机构：

[1] Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China

[2] Zhejiang Univ, Sch Mat Sci & Engn, Hangzhou 310027, Peoples R China

[3] Jiangsu Univ Sci & Technol, Sch Energy & Power, Zhenjiang 212003, Jiangsu, Peoples R China

[4] Key Lab Adv Mat & Applicat Batteries Zhejiang Pro, Hangzhou 310013, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2021年 / 46卷 / 01期

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

Mg(BH4)(2); LiBH4; Nanoconfinement; Hollow carbon nanospheres; DUAL-CATION LI; FACILE SYNTHESIS; LIBH4; MG(BH4)(2); CONFINEMENT; DESORPTION; BOROHYDRIDES; MGH2; DESTABILIZATION; REVERSIBILITY;

D O I：

10.1016/j.ijhydene.2020.09.177

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Novel porous hollow carbon nanospheres (HCNS) have been synthesized and utilized as scaffold for LiBH4-Mg(BH4)(2) eutectic borohydride (LMBH). Large loading amounts of LMBH (33, 50 and 67 wt%) have been melt-infiltrated into HCNS, and the significantly improved dehydrogenation properties have been discovered. The LMBH@HCNS composites not only exhibit high actual dehydrogenation amounts and fast hydrogen desorption rates, but also an increased reversible hydrogen storage capacities after three cycles without obvious degradation. Further structural tests have revealed that the over-infiltrated LMBH covering the spherical surface of HCNS could also contribute to the improved hydrogen storage behaviors, due to a strong interfacial adhesion effect that avoid LMBH from aggregation during de/rehydrogenation cycles. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：852 / 864

页数：13

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