Carbon Nanocomposite Membrane Electrolytes for Direct Methanol Fuel Cells—A Concise Review
Abstract
:1. Introduction
- Efficient anode catalyst for complete electro-oxidation of methanol.
- Solid polymer electrolyte with high proton conductivity and low methanol permeability.
- Methanol-tolerant cathode catalyst with high oxygen reduction activity.
2. Carbon Nanomaterials as Additives in PEMs
2.1. Carbon Nanotubes as Additives for PEMs in DMFC
2.1.1. PFSA-CNT Composite PEMs
2.1.2. Non-Fluorinated Polymer-CNTs Composites
2.1.3. PVA-CNT Composite PEMs
2.2. Graphene Oxide as an Additive for PEMs in DMFCs
2.2.1. PFSA-GO Composites
2.2.2. SPEEK-GO Composite PEMs
2.2.3. Sulfonated Poly Imide-GO Composites
2.2.4. Sulfonated Poly Sulfones-GO Composites
2.2.5. PVA-GO Composite PEMs
2.2.6. GO Free-Standing Membranes
2.3. PEMs with Other Carbon Nanomaterials
3. Conclusions
4. Future Prospects
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
Abbreviation
PEM | Polymer electrolyte membrane |
MEA | Membrane electrode assembly |
DMFC | Direct methanol fuel cells |
SWCNT | single-wall carbon nanotubes |
MWCNT | Multi-wall Carbon nanotube |
GO | Graphene oxide |
PFSA | Perfluorosulfonic acid |
SPEEK | Sulfonated poly(ether ether ketone) |
SFMC | Sulfonated fluorinated multi-block copolymer |
SDBC | Sulfonated diblock copolymer |
PES | Poly(ether sulfone) |
PEI | poly(ether imide) |
PVA | Polyvinyl alcohol |
PEN | poly ether nitrile |
DS | Degree of sulfonation |
GA | Glutaraldehyde |
PWA | Phosphotungstic acid |
PDDA | poly(diallyldimethylammonium chloride) |
PSSA | poly(styrene sulfonic acid) |
SDBS | Sulfonated dodecyl benzene sulfonate |
IL | Ionic liquid |
CNF | Carbon nanofibre |
MC | Mesoporous carbon |
OCV | Open circuit voltage |
NCD | Nafion modified carbon dots |
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Polymer Matrix | Carbon Material | Additive Loading wt.% | Proton Conductivity (mS cm−1) | Methanol Permeability (×10−7 cm2 s−1) | Temp. (°C) | Ref. |
---|---|---|---|---|---|---|
Nafion® | Im-CNT | 0.5 | 150 | 10.0 | 80 | [29] |
Nafion® | COOH-MWCNT | 2 | 100 | 11.3 | [30] | |
Nafion® | Chitosan-CNTs | 0.5 | 104 | 2.03 | 25 | [31] |
Nafion® | PWA-SiO2-CNT | 1 | 87 | 2.63 | 25 | [32] |
Nafion® | Fe3O4-CNTs | 0.1 | 85 | 5.4 | 60 | [33] |
Nafion® | CeO2−ACNTs | 2 | 96 | NR | 60 | [34] |
SPEI | S-MWCNT | 5 | 3.98 | 11.7 | 80 | [35] |
SPAS | SO3CNT/PtRu/CNT | 1 | 106 | 23.6 | [36] | |
PVA | s-MWNTs | 20 | 75 | 0.03 | 60 | [37] |
PVA | S-MWCNT/F-MMT | 1 | 6 | 20 | 30 | [38] |
PVA | S-MWCNT | 1 | 4 | 41 | 30 | [38] |
PVA | CNT-PDDA-HPW | 2 | 9.4 | 4.02 | 30 | [39] |
SPESEKK | sCNTs | 1.5 | 4.3 | 0.96 | 30 | [24] |
SPEEK | PSSA-CNTs | 0.5 | 101 | 2.17 | 60 | [40] |
SPEEK | fCNTs | 0.5 | 43.1 | 1.68 | 30 | [41] |
SPEEK | POH-CNTs | 2 | 160 | 3.7 | 60 | [42] |
SPEEK | SiO2-CNTs | 1.5 | 77.8 | 0.72 | RT | [43] |
SDBC | S-CNTs | 1.5 | 141.7 | NR | 90 | [44] |
Nafion® | GO | 1.5 | 23.5 | 9.1 | 35 | [45] |
Nafion® | S-GO | 0.5 | 100 | 19.9 | 60 | [46] |
Nafion® | GO | 0.5 | 40 | 7.92 | 30 | [47] |
Nafion® | GO-silica | 0.8 | 48.1 | 0.16 | 50 | [48] |
Nafion® | S-GO | NR | 89.6 | 8.4 | 30 | [49] |
Nafion® | Graphene | NR | 40 | 4.4 | 25 | [50] |
Nafion® | GO | NR | 15 | 0.67 | 30 | [51] |
Nafion® | PDDA-GO | NR | 25 | 13 | 25 | [52] |
SPEEK | S-GO | 8 | 162.6 | 13.6 | 65 | [53] |
SPEEK | SDBS-GO | 8 | 162.6 | 9.5 | 65 | [54] |
SPEEK | S-GO | 5 | 8.41 | 2.6 | 80 | [55] |
SPEEK | Histidine-GO | 4 | 69.4 | 1.35 | 25 | [56] |
SPEEK | SH-GO | 5 | 90.5 | 0.3 | 25 | [57] |
SF-SPEEK | GO | 5 | 111.90 | NR | 90 | [58] |
SPI | SPS-GO | 8 | 96.2 | 2.0 | 30 | [59] |
SPI | PSS-GO | 0.5 | 86 | 4.31 | 60 | [60] |
SPI | SI-GO | 10 | 113.8 | 10.52 | 30 | [61] |
SPES | S-GO | 5 | 58 | 1.5 | 30 | [62] |
SPES | IL-GO | 5 | 72.7 | 0.53 | RT | [63] |
SPES | S-GO | 15 | 78.2 | 3.82 | 25 | [64] |
SPES | GO | 1 | 4.3 | 0.49 | RT | [65] |
SPE | S-GO | 0.75 | 390 | 4.89 | 80 | [66] |
SPS | S-GO | 3 | 4.27 | 3.48 | RT | [67] |
SPEN | N-GO | 1 | 104 | 1.74 | 20 | [68] |
SPEN | S-N-GO | NR | 64 | 1.43 | 20 | [69] |
SPAEN | CNT-GO | NR | 119.7 | 2.0 | 20 | [70] |
SPVdF-co-HFP | S-GO | 0.7 | 5.5 | 1.8 | 30 | [71] |
PVA | GO | 1.5 | 13.5 | 2.0 | 35 | [72] |
PVA | Fe3O4/S-GO | 5 | 64 | 0.45 | 30 | [73] |
GO paper | 54.2 | 2.4 | 65 | [74] | ||
Holey GO paper | 68.4 | 145.5 | 65 | [74] | ||
SDBS-GO paper | 68.5 | 4.4 | 65 | [74] | ||
Holey SDBS Holey GO paper | 91.8 | 35.4 | 65 | [74] | ||
GO paper | 4.9 | 0.16 | 30 | [75] | ||
SPEEK | S-fullerene | 0.5 | 96 | 2.4 | 60 | [76] |
Nafion® | S-fullerene | 1 | 97 | 8.5 | 60 | [77] |
SPEEK | SCNF | 1 | 128 | 5.02 | 60 | [78] |
SPPEK | SGNF | 0.5 | 85 | 4.5 | 60 | [79] |
Nafion® | MC | 1 | 75 | 9.8 | 30 | [80] |
Nafion® | NCD | 0.5 | 21 | 0.12 | 40 | [81] |
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Rambabu, G.; D. Bhat, S.; Figueiredo, F.M.L. Carbon Nanocomposite Membrane Electrolytes for Direct Methanol Fuel Cells—A Concise Review. Nanomaterials 2019, 9, 1292. https://doi.org/10.3390/nano9091292
Rambabu G, D. Bhat S, Figueiredo FML. Carbon Nanocomposite Membrane Electrolytes for Direct Methanol Fuel Cells—A Concise Review. Nanomaterials. 2019; 9(9):1292. https://doi.org/10.3390/nano9091292
Chicago/Turabian StyleRambabu, Gutru, Santoshkumar D. Bhat, and Filipe M. L. Figueiredo. 2019. "Carbon Nanocomposite Membrane Electrolytes for Direct Methanol Fuel Cells—A Concise Review" Nanomaterials 9, no. 9: 1292. https://doi.org/10.3390/nano9091292