Sol–Gel Materials for Batteries and Fuel Cells

Mosa, Jadra; Aparicio, Mario

doi:10.1002/9783527670819.ch35

Cited by 3 publications

(2 citation statements)

References 262 publications

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“…Besides, the precursor reactivity and the condition of deposition are important due to affect the microstructure of the SOFC component and usually the spin-coating and dip-coating techniques usually used to coat the substrates . [104][105][106] Then, the samples dried at ambient condition, followed by the heat treatment process to crystallization and densification of the thin film process. The steps repeated until the necessary thickness formed.…”

Section: Sol-gel Methodsmentioning

confidence: 99%

A review of solid oxide fuel cell component fabrication methods toward lowering temperature

et al. 2019

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The solid oxide fuel cells (SOFCs) emerge as an alternative power generation system for high-scale stationary application and power plant station. The SOFC consumption leads to the high-efficiency energy production that forms variety of fuels up to 60% energy conversion; the operation system does not involve the burning process and minimizes the air pollution. Also, the aptitude to provide the cogenerative energy production from the heat waste during the operation process serve SOFC as an attractive green technology and environmentally friendly. However, the SOFC consumption remains limited for transportation and portable applications because the simple design of power source compartment is still the major hurdle in each SOFC component development and commercialization. Therefore, the appropriate fabrication method of each SOFC component is important to achieve the reliability of the SOFC application for the small-scale power generation design. In this paper, an overview of the design types and SOFC components and properties following electrode, electrolyte, interconnect and sealant are discussed and summarized. As the thirdgeneration fuel cells, which entice the commercialization stage, this paper concentrates more on the fabrication method of each SOFC components that were explored including the working principle, advantage, disadvantage and several previous works on each fabrication method, which are described to finding the appropriate fabrication method toward lowering the operating temperature and develop the simple design of SOFC power sources system for the transportation and portable application. The targeted market power production of SOFC system for transportation application is about 5 kW and 250 W for portable application.

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Section: Sol-gel Methodsmentioning

confidence: 99%

A review of solid oxide fuel cell component fabrication methods toward lowering temperature

et al. 2019

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“…Gadolinium doped cerium atau GDC 10 merupakan komposisi yang cocok untuk elektrolit IT-SOFC dikarenakan kestabilannya dan konduktivitas ionik yang tinggi pada temperatur menengah. Sintesis serbuk GDC 10 pada umumnya menggunakan bahan baku serium nitrat heksahidrat dan gadolinium nitrat heksahidrat [1]. Kedua bahan tersebut termasuk bahan logam tanah jarang yang ketersediannya cukup berpotensi di Indonesia.…”

Section: Pendahuluanunclassified

Analisis Kemurnian Hasil Sintesis Gadolinium Doped Cerium (GDC) Menggunakan Prekursor Gd2O3 dan Ce(OH)4 Lokal dengan Metode Kopresipitasi

Hapsari

Pravitasari

Yuliani

et al. 2019

JITM

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Gadolinium doped cerium (GDC10) banyak dikembangkan sebagai elektrolit ITSOFC. Bahan baku GDC10 diperkirakan dapat memanfaatkan sumber daya alam lokal. Penelitian ini mempelajari sintesis GDC10 menggunakan prekursor Ce(OH)4 (Produk Lokal, 85% Ce) dan Gd2O3 (Produk Lokal, 1,26% Gd) dengan metode kopresipitasi. Tiga jenis senyawa karbonat, yaitu amonium karbonat ((NH4)2CO3), potasium karbonat (K2CO3), dan sodium hidrogen karbonat (NaHCO3), digunakan sebagai agen presipitasi. Serbuk hasil sintesis dikarakterisasi dengan menggunakan X-Ray Diffraction (XRD) danÂ Fourier Transform Infrared (FTIR). Penambahan berbagai senyawa karbonat sebagai agen presipitasi dengan prekursor berupa gadolinium dan serium lokal dapat menghasilkan serbuk elektrolit GDC10 dengan struktur kristalÂ fluorite kubik. Potasium karbonat memiliki kualitas dan performa yang lebih baik sebagai agen presipitasi untuk menghasilkan serbuk elektrolit GDC10 karena menghasilkan ukuran kristalit yang paling kecil sebesar 0,014 nm dibandingkan jenis GDC10 dengan agen presipitasi lainnya. Namun, masih perlu optimasi pada temperatur kalsinasi untuk menghilangkan pengotor berupa karbonat.

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Fabrication of Biomimetic Micropatterned Surfaces by Sol–Gel Dewetting

Colusso

Martucci

Neto

2019

Adv Materials Inter

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Dewetting is a spontaneous phenomenon that occurs when unstable thin liquid films break apart on a non-wettable substrate, driven by unfavorable intermolecular forces at the interface. The Neto group has used dewetting of polymer films extensively in the last decade to generate patterned surfaces for a range of applications, including atmospheric water capture and cell patterning. [16][17][18][19][20][21] Dewetting of metastable thin polymer films (≈100 nm) occurs when the polymer is brought above its glass transition temperature (T g ), by either thermal or solvent annealing, to enable sufficient mobility of the polymer chains. During dewetting, holes appear in the initially uniform film, then grow with time, until eventually all the polymer is accumulated in isolate droplets on the substrate. When the polymer film is brought below its T g , the pattern is frozen in and preserved. [22][23][24][25][26] Spatially controlled alignment of the droplets or confinement of the dewetted areas can be induced by external stimuli such as stamp or probe, or by using prepatterned substrates. [14,[27][28][29] Sol-gel films are much more robust than polymer films as they are mostly inorganic in nature, so can withstand high working temperature and UV irradiation, are harder, and their refractive index and electronic properties can be modulated. [30][31][32][33] In the sol-gel process, inorganic polymers and ceramics are obtained starting from liquid precursors though hydrolysis and condensation reactions that lead the formation of a network structure called "gel.". This gel is then converted into a dense "xerogel" during the drying through expulsion of solvent and collapse of the porous network and eventually converted into a dense ceramic through calcination at high temperature (if required). [34,35] So far, the dewetting of sol-gel films has been studied only in a couple of papers. [36,37] In this paper, we investigated for the first time the dewetting of bilayers of sol-gel films: the top film is hydrophilic (silica) and the bottom one hydrophobic (CH 3silica), with the objective of producing silicate patterns that are both chemical and topographical in nature. The control of the wettability of the surface is obtained by chemical modification of the sol-gel network by using organic-modified silicon precursors with hydrophobic groups. [38,39] The produced patterns, hydrophilic bumps on a hydrophobic background, mimic the exoskeleton of the Namib desert beetle (which has ≈500 µm hydrophilic bumps on a waxy background), [17,40] and could facilitate the nucleation of water droplets via condensation Dewetting of thin polymer films has been extensively investigated as a way to generate patterned surfaces. In this paper, the controlled dewetting of sol-gel thin films induced by solvent annealing is reported. The key factors that control the dewetting process are identified and patterns with tunable diameter between 5 and 80 µm and tunable height between 1 and 10 µm are fabricated on a large scale. By changing the chemistry of the s...

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Sol–Gel Materials for Batteries and Fuel Cells

Cited by 3 publications

References 262 publications

A review of solid oxide fuel cell component fabrication methods toward lowering temperature

A review of solid oxide fuel cell component fabrication methods toward lowering temperature

Analisis Kemurnian Hasil Sintesis Gadolinium Doped Cerium (GDC) Menggunakan Prekursor Gd2O3 dan Ce(OH)4 Lokal dengan Metode Kopresipitasi

Fabrication of Biomimetic Micropatterned Surfaces by Sol–Gel Dewetting

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