Multi-component MWCNT/NG/EP-based bipolar plates with enhanced mechanical and electrical characteristics fabricated by compression moulding

被引：34

作者：

Akhtar, Majid Niaz ^{[1
]}

Sulong, Abu Bakar ^{[2
]}

Umer, A. ^{[3
]}

Bin Yousaf, Ammar ^{[4
]}

Khan, Muhammad Azhar ^{[5
]}

机构：

[1] MNSUET, Dept Phys, Multan 60000, Pakistan

[2] Univ Kebangsaan Malaysia, Fac Engn & Built Environm, Dept Mech & Mat Engn, Bangi 43600, Selangor, Malaysia

[3] Muhammad Nawaz Sharif Univ Engn & Technol, Dept Chem Engn, Multan, Pakistan

[4] Qatar Univ, Ctr Adv Mat, Doha 2713, Qatar

[5] Islamia Univ Bahawalpur, Dept Phys, Bahawalpur 63100, Pakistan

来源：

CERAMICS INTERNATIONAL | 2018年 / 44卷 / 12期

关键词：

Bipolar plates; Multi-component composite; Multi-walled carbon nanotubes; Compression moulding; Electrical properties; Mechanical properties; MEMBRANE FUEL-CELL; CARBON NANOTUBES; COMPOSITES; NANOCOMPOSITES; CONDUCTIVITY; TEMPERATURE;

D O I：

10.1016/j.ceramint.2018.05.059

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this work, multi-walled carbon nanotubes (MWCNTs), natural graphite (NG) and epoxy (EP) were used to fabricate bipolar plates by the compression moulding technique. The mechanical and thermal behaviours of the as-developed material were investigated in terms of the effects of temperature on the morphological, mechanical and electrical properties. It was observed that the flexural strength of the MWCNT/NG/EP composite decreased with increasing temperature. The highest flexural strength (27.05 MPa) was recorded at 25 degrees C. When heated to 200 degrees C, the flexural strength of the material decreased by up to 2.40 MPa. The shore hardness of the MWCNT/NG/EP composite decreased with increasing temperature. The highest shore hardness (69.7 HD) was recorded at a temperature of 25 degrees C, while the lowest shore hardness (31.3 HD) was recorded at 200 degrees C. The temperature-dependent through-plane and in-plane electrical conductivities of the MWCNT/NG/EP composite were also investigated, although its contact, bulk and forward resistivity values were found to decrease. The experimental results revealed that the effect of temperature on the thermal and mechanical properties of the bipolar plate material was different at different temperatures. The synergistic electrical nature of the as-designed material may be ascribed to the phenomenon of electron transfer among the channels of natural graphite and MWCNTs. The enhanced mechanical behaviour was attributed to the presence of EP in the composite material.

引用

页码：14457 / 14464

页数：8

共 34 条

[1] Evaluation of thermal, morphological and mechanical properties of PMMA/NaCl/DMF electrospun nanofibers: an investigation through surface methodology approach [J].

Akhtar, Majid Niaz ;

Sulong, Abu Bakar ;

Karim, Saniah Ab. ;

Azhari, Che Husna ;

Raza, M. R. .

IRANIAN POLYMER JOURNAL, 2015, 24 (12) :1025-1038

[2] Structural, morphological, dielectric and magnetic characterizations of Ni0.6Cu0.2Zn0.2Fe2O4 (NCZF/MWCNTs/PVDF) nanocomposites for multilayer chip inductor (MLCI) applications [J].

Akhtar, Majid Niaz ;

Khan, Muhammad Azhar ;

Raza, M. R. ;

Ahmad, Mukhtar ;

Murtaza, G. ;

Raza, Rizwan ;

Shaukat, S. F. ;

Asif, M. H. ;

Saleem, M. ;

Nazir, M. S. .

CERAMICS INTERNATIONAL, 2014, 40 (10) :15821-15829

[3] Synthesis and characterizations of Ni0.8Zn0.2Fe2O4-MWCNTs composites for their application in sea bed logging [J].

Akhtar, Majid Niaz ;

Yahya, Noorhana ;

Koziol, Krzysztof ;

Nasir, Nadeem .

CERAMICS INTERNATIONAL, 2011, 37 (08) :3237-3245

[4] Through-plane electrical conductivity of injection-molded polypropylene/carbon-fiber composite foams [J].

Ameli, A. ;

Jung, P. U. ;

Park, C. B. .

COMPOSITES SCIENCE AND TECHNOLOGY, 2013, 76 :37-44

[5] Effect of carbon nanotubes loading in multifiller polymer composite as bipolar plate for PEM fuel cell [J].

Bairan, Aninorbaniyah ;

Selamat, Mohd Zulkefli ;

Sahadan, Siti Norbaya ;

Malingam, Sivakumar Dhar ;

Mohamad, Noraiham .

5TH INTERNATIONAL CONFERENCE ON RECENT ADVANCES IN MATERIALS, MINERALS AND ENVIRONMENT (RAMM) & 2ND INTERNATIONAL POSTGRADUATE CONFERENCE ON MATERIALS, MINERAL AND POLYMER (MAMIP), 2016, 19 :91-97

[6] Synergistic effect of graphene and multi-walled carbon nanotubes composite supported Pd nanocubes on enhancing catalytic activity for electro-oxidation of formic acid [J].