High Temperature PEM Fuel Cells Based on Nafion®/SiO2 Composite Membrane

Li, Xiaojin; Ke, Changchun; Qu, Shuguo; Li, Jin; Shao, Zhigang; Yi, Baolian

doi:10.5772/19029

Cited by 4 publications

(6 citation statements)

References 38 publications

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“…Therefore, even at low humidity, the conductivity remains high. 17,18 For this reason, there are many publications dealing with the use of silica, titania, and other types of metal oxide nanoparticles with the purpose of improving the electrolyte performance of Nafion membranes, accomplished by enhancing their thermal and mechanical properties and procuring good water retention to improve proton conductivity. [19][20][21][22] There are also reports on polymer-clay composite membranes for fuel cell applications.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, the presence of the nanoparticles ensures that the membrane remains moist at high temperatures. Therefore, even at low humidity, the conductivity remains high 17,18 . For this reason, there are many publications dealing with the use of silica, titania, and other types of metal oxide nanoparticles with the purpose of improving the electrolyte performance of Nafion membranes, accomplished by enhancing their thermal and mechanical properties and procuring good water retention to improve proton conductivity 19–22 .…”

Section: Introductionmentioning

confidence: 99%

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Nafion/SiO₂@TiO₂‐palygorskite membranes with improved proton conductivity

Thmaini

Charradi

Ahmed

et al. 2022

J of Applied Polymer Sci

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This work deals with the synthesis of SiO2@TiO2 supported palygorskite fibers and their use as a filler for proton exchange membrane fuel cells in order to improve their performance. SiO2@TiO2‐palygorskite nanostructured particles were synthesized separately with original route to ensure the growth of TiO2 and then of SiO2 on the surface of the clay. Accordingly, the introduction of the synthetic filler (SiO2@TiO2‐paly) into the electrolyte membrane (Nafion) aims to improve mechanical, thermal, and proton conductivity properties. The TiO2 nanoparticles were generated via a sol–gel process on the external surface of palygorskite. Then, SiO2 nanoparticles were synthetized using a similar sol–gel process, onto the TiO2‐palygorskite particles to produce the final SiO2@TiO2‐palygorskite particles. The physico‐chemical properties of the nanostructured particles were studied by X‐ray diffractometry, Fourier transform infrared, scanning electron microscopy, and transmission electron microscopy. Nafion based composite membranes were prepared using SiO2@TiO2‐palygorskite and TiO2‐palygorskite as a control standard. The composite membranes show improved mechanical properties, thermal stability, water retention, and proton conductivity compared to the neat Nafion membrane. Proton conductivities (at 100°C and 100% relative humidity) increased from 65.0 mS/cm for neat Nafion to 70.4 mS/cm and to 128.6 mS/cm when incorporated TiO2‐Paly (6% in weight) and SiO2@TiO2‐Paly (6% in weight), respectively.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Nafion/SiO₂@TiO₂‐palygorskite membranes with improved proton conductivity

Thmaini

Charradi

Ahmed

et al. 2022

J of Applied Polymer Sci

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“…Composite materials consist of two or more constituents with different chemical, mechanical, or physical properties [59]. Composite membranes have widely been used in PEMFCs such as PTFE/Nafion [59], metal-oxiderecast/Nafion [60], copper phthalocyanine tetrasulfonic acid tetrasodium salt (CuT-SPc)/Nafion [61], calcium titanate/PBI [62], PBI-SiO 2 [63], Nafion ® /SiO 2 [64], polyvinylidene fluoride (PVDF)/Nafion [65], Nafion/polyaniline [66], PBI/graphene oxide [24], etc. Fillers can provide additional chemical resistance, mechanical strength, and proton conductivity.…”

Section: Polymer Compositesmentioning

confidence: 99%

“…copper phthalocyanine tetrasulfonic acid tetrasodium salt (CuTSPc)/Nafion [61], calcium titanate/PBI [62], PBI-SiO2 [63], Nafion ® /SiO2 [64], polyvinylidene fluoride (PVDF)/Nafion [65], Nafion/polyaniline [66], PBI/graphene oxide [24], etc. Fillers can provide additional chemical resistance, mechanical strength, and proton conductivity.…”

Section: Polymer Compositesmentioning

confidence: 99%

A Review of Recent Developments and Advanced Applications of High-Temperature Polymer Electrolyte Membranes for PEM Fuel Cells

et al. 2021

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This review summarizes the current status, operating principles, and recent advances in high-temperature polymer electrolyte membranes (HT-PEMs), with a particular focus on the recent developments, technical challenges, and commercial prospects of the HT-PEM fuel cells. A detailed review of the most recent research activities has been covered by this work, with a major focus on the state-of-the-art concepts describing the proton conductivity and degradation mechanisms of HT-PEMs. In addition, the fuel cell performance and the lifetime of HT-PEM fuel cells as a function of operating conditions have been discussed. In addition, the review highlights the important outcomes found in the recent literature about the HT-PEM fuel cell. The main objectives of this review paper are as follows: (1) the latest development of the HT-PEMs, primarily based on polybenzimidazole membranes and (2) the latest development of the fuel cell performance and the lifetime of the HT-PEMs.

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“…(Zhang, 2009) Konduktivitas proton meningkat seiring meningkatnya komposisi lempung yang ditambahkan pada membran. Hal ini menunjukkan bahwa penambahan silika yang masuk ke dalam matriks polimer mempengaruhi besarnya konduktivitas proton (Li, 2011). Selain itu, faktor lain seperti jumlah gugus ionik dan kecepatan hidrasi juga mempengaruhi performa membran (Pereira et al, 2008).…”

Section: Uji Swellingmetanolunclassified

Karakteristik Membran Komposit Berbasis Kitosan/Pva Termodifikasi Lempung Dari Babakan Madang Bogor

2020

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The use of natural polymers as membranes of DMFC from chitosan was developed because it is more environmentally friendly and has high thermal stability, but the proton conductivity is low. The Clay from Babakan Madang, which contained of SiO2 50% was expected to increase proton conductivity and improve the characteristics of the polymer membrane. Chitosan / PVA based membrane synthesis was carried out by adding clay weight variations of 0.3, 0.6 and 0.9 g. The spectra of membranes investigated by FT-IR confirmed the presence of functional groups from chitosan/PVA/clay. Morphological analysis using SEM showed that there were granules of clay dispersed on the membrane. The determination of membran conductivity using EIS showed the highest proton conductivity value was a membrane with the addition of 0.6 g clay, it was 6.96 x 10-7 S / cm. The membrane water swelling produced on the three membranes tended to be high, with the smallest value of 56.69% on the membrane with the addition of 0.9 grams of clay. The methanol uptake data found that the conductivity of membrane with the addition of 0.6 grams of clay was 346.11%.

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High Temperature PEM Fuel Cells Based on Nafion®/SiO2 Composite Membrane

Cited by 4 publications

References 38 publications

Nafion/SiO₂@TiO₂‐palygorskite membranes with improved proton conductivity

Nafion/SiO₂@TiO₂‐palygorskite membranes with improved proton conductivity

A Review of Recent Developments and Advanced Applications of High-Temperature Polymer Electrolyte Membranes for PEM Fuel Cells

Karakteristik Membran Komposit Berbasis Kitosan/Pva Termodifikasi Lempung Dari Babakan Madang Bogor

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High Temperature PEM Fuel Cells Based on Nafion®/SiO2 Composite Membrane

Cited by 4 publications

References 38 publications

Nafion/SiO2@TiO2‐palygorskite membranes with improved proton conductivity

Nafion/SiO2@TiO2‐palygorskite membranes with improved proton conductivity

A Review of Recent Developments and Advanced Applications of High-Temperature Polymer Electrolyte Membranes for PEM Fuel Cells

Karakteristik Membran Komposit Berbasis Kitosan/Pva Termodifikasi Lempung Dari Babakan Madang Bogor

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About

Nafion/SiO₂@TiO₂‐palygorskite membranes with improved proton conductivity

Nafion/SiO₂@TiO₂‐palygorskite membranes with improved proton conductivity