MNi4.8Sn0.2(M=La, Nd)-supported multi-walled carbon nanotube composites as hydrogen storage materials

Jian Wei Ren; Shi Jun Liao; Jun Min Liu

doi:10.1007/s11434-007-0242-9

MNi_4.8Sn_0.2(M=La, Nd)-supported multi-walled carbon nanotube composites as hydrogen storage materials

Jian Wei Ren, Shi Jun Liao, Jun Min Liu

South China University of Technology

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

4 Citations (Scopus)

Abstract

Two composites LaNi_4.8Sn_0.2/CNTs and NdNi _4.8Sn_0.2/CNTs were prepared by an impregnation-reduction method. Their hydrogen storage capacity could reach up to 2.96 wt% and 2.88 wt% respectively at room temperature and 1.0 MPa pressure. These values, which might result from the synergetic effect between the alloy nanoparticles and the pretreated CNTs, were three times higher than those of the unsupported MNi _4.8Sn_0.2 (M=La, Nd) alloys under the same conditions. XRD and TEM revealed that the alloy particles were uniformly dispersed on the CNTs and the average particle size was ca. 30 nm. The composites also showed good stability and the hydrogen storage capacity decreased by less than 6% after 100 adsorption-desorption cycles. Moreover, no noticeable change in crystalline structure was observed for the composites.

Original language	English
Pages (from-to)	1616-1622
Number of pages	7
Journal	Chinese Science Bulletin
Volume	52
Issue number	12
DOIs	https://doi.org/10.1007/s11434-007-0242-9
Publication status	Published - Jun 2007
Externally published	Yes

Keywords

Hydrogen storage
Multi-walled carbon nanotubes
Nanoparticle
Rare earth element

ASJC Scopus subject areas

Multidisciplinary

UN SDGs

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

Access to Document

10.1007/s11434-007-0242-9

Cite this

@article{8cad4661dd3843fa96dcb2733a1c7622,

title = "MNi4.8Sn0.2(M=La, Nd)-supported multi-walled carbon nanotube composites as hydrogen storage materials",

abstract = "Two composites LaNi4.8Sn0.2/CNTs and NdNi 4.8Sn0.2/CNTs were prepared by an impregnation-reduction method. Their hydrogen storage capacity could reach up to 2.96 wt% and 2.88 wt% respectively at room temperature and 1.0 MPa pressure. These values, which might result from the synergetic effect between the alloy nanoparticles and the pretreated CNTs, were three times higher than those of the unsupported MNi 4.8Sn0.2 (M=La, Nd) alloys under the same conditions. XRD and TEM revealed that the alloy particles were uniformly dispersed on the CNTs and the average particle size was ca. 30 nm. The composites also showed good stability and the hydrogen storage capacity decreased by less than 6% after 100 adsorption-desorption cycles. Moreover, no noticeable change in crystalline structure was observed for the composites.",

keywords = "Hydrogen storage, Multi-walled carbon nanotubes, Nanoparticle, Rare earth element",

author = "Ren, {Jian Wei} and Liao, {Shi Jun} and Liu, {Jun Min}",

year = "2007",

month = jun,

doi = "10.1007/s11434-007-0242-9",

language = "English",

volume = "52",

pages = "1616--1622",

journal = "Chinese Science Bulletin",

issn = "1001-6538",

publisher = "Elsevier B.V.",

number = "12",

}

TY - JOUR

T1 - MNi4.8Sn0.2(M=La, Nd)-supported multi-walled carbon nanotube composites as hydrogen storage materials

AU - Ren, Jian Wei

AU - Liao, Shi Jun

AU - Liu, Jun Min

PY - 2007/6

Y1 - 2007/6

N2 - Two composites LaNi4.8Sn0.2/CNTs and NdNi 4.8Sn0.2/CNTs were prepared by an impregnation-reduction method. Their hydrogen storage capacity could reach up to 2.96 wt% and 2.88 wt% respectively at room temperature and 1.0 MPa pressure. These values, which might result from the synergetic effect between the alloy nanoparticles and the pretreated CNTs, were three times higher than those of the unsupported MNi 4.8Sn0.2 (M=La, Nd) alloys under the same conditions. XRD and TEM revealed that the alloy particles were uniformly dispersed on the CNTs and the average particle size was ca. 30 nm. The composites also showed good stability and the hydrogen storage capacity decreased by less than 6% after 100 adsorption-desorption cycles. Moreover, no noticeable change in crystalline structure was observed for the composites.

AB - Two composites LaNi4.8Sn0.2/CNTs and NdNi 4.8Sn0.2/CNTs were prepared by an impregnation-reduction method. Their hydrogen storage capacity could reach up to 2.96 wt% and 2.88 wt% respectively at room temperature and 1.0 MPa pressure. These values, which might result from the synergetic effect between the alloy nanoparticles and the pretreated CNTs, were three times higher than those of the unsupported MNi 4.8Sn0.2 (M=La, Nd) alloys under the same conditions. XRD and TEM revealed that the alloy particles were uniformly dispersed on the CNTs and the average particle size was ca. 30 nm. The composites also showed good stability and the hydrogen storage capacity decreased by less than 6% after 100 adsorption-desorption cycles. Moreover, no noticeable change in crystalline structure was observed for the composites.

KW - Hydrogen storage

KW - Multi-walled carbon nanotubes

KW - Nanoparticle

KW - Rare earth element

UR - http://www.scopus.com/inward/record.url?scp=34547296307&partnerID=8YFLogxK

U2 - 10.1007/s11434-007-0242-9

DO - 10.1007/s11434-007-0242-9

M3 - Article

AN - SCOPUS:34547296307

SN - 1001-6538

VL - 52

SP - 1616

EP - 1622

JO - Chinese Science Bulletin

JF - Chinese Science Bulletin

IS - 12

ER -