Effect of Strontium the phase structure of Ba1−xSrxCe0.65Zr0.2Y0.15O3−δ (0 ≤ x ≤ 0.25) proton conductor by citrate–EDTA complexing sol–gel method

Sailaja, Jampana Madhuri; Murali, N.; Babu, K. Vijay; Veeraiah, V.

doi:10.1016/j.jascer.2016.12.004

Cited by 15 publications

(4 citation statements)

References 44 publications

(49 reference statements)

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“…Moreover, the chemical stability improved slightly for the Ca‐ or Sr‐substituted materials due to the decreased basicity of these ions. As a result, joint modification of both A and B sublattices in Ba(Ce,Zr)O 3 has been successfully used to from new highly stable electrolytes with predominant proton conductivity in the past few years …”

Section: Functional Materials Of Proton‐conducting Socsmentioning

confidence: 99%

Gas Humidification Impact on the Properties and Performance of Perovskite‐Type Functional Materials in Proton‐Conducting Solid Oxide Cells

Wang

Medvedev

Shao

2018

Adv Funct Materials

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Fuel cells and electrolysis cells as important types of energy conversiondevices can be divided into groups based on the electrolyte material. However, solid oxide cells (SOCs) based on conventional oxygen-ion conductors are limited by several issues, such as high operating temperature, the difficulty of hydrogen purification from water, and inferior stability. To avoid these problems, proton-conducting oxides are proposed as electrolytes for SOCs in electrolysis and fuel cell modes. Since water vapor partial pressure (pH 2 O) is one of the main parameters determining the proton concentration in proton-conducting oxides (characteristics of which can be either improved or deteriorated), the pH 2 O control is extremely important for the optimization of the devices' performance and stability. This review provides an overview of the research progresses made for proton-conducting SOCs, especially for the impact of gas humidification on the operability and performance. Fundamental understanding of the main processes in proton-conducting SOCs and design principles for the key components are summarized and discussed. The trends, challenges, and future directions that exist in this dynamic field are also pointed out. This review will inspire interest from various disciplines and provide some useful guidelines for future development of proton-conductor-based energy storage and conversion systems.

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Section: Functional Materials Of Proton‐conducting Socsmentioning

confidence: 99%

Gas Humidification Impact on the Properties and Performance of Perovskite‐Type Functional Materials in Proton‐Conducting Solid Oxide Cells

Wang

Medvedev

Shao

2018

Adv Funct Materials

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“…They help in enhancing the reaction rate with the mixing of raw materials at the molecular level. 125 However, chelating agents are known expensive thus it is not suitable for large scale production. 24 Sol-gel combustion method is used for low-temperature powder synthesis (500-600 C).…”

Section: Sol-gel Methodsmentioning

confidence: 99%

“…With the aids of chelating agents, the processing temperature can be lowered. They help in enhancing the reaction rate with the mixing of raw materials at the molecular level 125 . However, chelating agents are known expensive thus it is not suitable for large scale production 24 …”

Section: Wet Chemical Methodsmentioning

confidence: 99%

A review on the preparation of anode materials and anode films for solid oxide fuel cell applications

Hadi

Somalu

Osman

et al. 2021

Intl J of Energy Research

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The primary components of SOFCs are the anode, cathode, and the electrolyte. Anode is critical in achieving the effective electrochemical oxidation of fuel; thus, its performance can be improved using homogenous powder synthesized through an appropriate method. Various synthesis methods, including solidstate reaction and wet chemical methods have been used to synthesize anode materials. However, each technique has several advantages and disadvantages.Given that anode is a porous electrode, few criteria, such as high conductivity, tolerance towards carbon deposition, chemical stability, and thermal stability, must be fulfilled. Researchers also modified the existing synthesis method to improve the performance of the anode. In addition, various anode fabrication techniques including physical and colloidal deposition techniques are briefly discussed to understand their effect on the performance of the deposited layers.The aim of this review is to discuss the various anode synthesis and deposition techniques and their influence on the properties and performance of SOFCs.

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“…This method is chosen due to its ability to obtain a high level of precursor homogeneity to produce a homogeneous end product [5]. Moreover, the modified sol-gel method also able to lower the processing temperature results from a uniform mixing of raw material on the molecular level that enhances the reaction rate [6]. In the modified sol-gel method, few chemical agents are used; chelating agent, polymerizing agent and others.…”

Section: Introductionmentioning

confidence: 99%

Characterization of BCZY Ceramic Material Prepared with Treated Activated Carbon from Empty Fruit Bunches (EFB)

Mahmud

Osman

Jani

2020

SSP

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The activated carbon produced from oil palm empty fruit bunches (ACEFB) shows good properties to act as a dispersing agent in the synthesis of BCZY ceramic material. However, the untreated ACEFB (u-ACEFB) shows some impurities still present after calcination. Thus, it has to be functionalized (f-ACEFB) by using chemical treatment. In this work, three samples of bare BCZY, BCZY u-ACEFB and BCZY f-ACEFB were prepared, respectively. The sol-gel method was used to synthesize the BCZY ceramic powder by using metal nitrate salt as a starting material. The ACEFB was added to the metal precursor accordingly and was dried (T=325°C) followed by calcined (T=1100°C). For the fabrication of pellet, the sample was sintered by two-step sintering (TSS) method. The relative density of pellet was measured and calculated. The Fourier Transform Infrared (FTIR) spectroscopy, Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray (EDX) were conducted to characterize the synthesized BCZY ceramic material. Based on the characterization, BCZY u-ACEFB have the highest relative density among the others, whereas BCZY f-ACEFB have the lowest relative density. The FTIR results further confirmed the presence of the functional groups corresponded to the BCZY. The SEM micrograph shows a spherical structure of BCZY f-ACEFB with grain size around 134 nm. EDX data further confirm the elemental composition of the pellet. It was observed that the f-ACEFB have an outstanding performance as a dispersing agent in BCZY synthesizing route.

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Effect of Strontium the phase structure of Ba_1−xSr_xCe_0.65Zr_0.2Y_0.15O_3−δ (0 ≤ x ≤ 0.25) proton conductor by citrate–EDTA complexing sol–gel method

Cited by 15 publications

References 44 publications

Gas Humidification Impact on the Properties and Performance of Perovskite‐Type Functional Materials in Proton‐Conducting Solid Oxide Cells

Gas Humidification Impact on the Properties and Performance of Perovskite‐Type Functional Materials in Proton‐Conducting Solid Oxide Cells

A review on the preparation of anode materials and anode films for solid oxide fuel cell applications

Characterization of BCZY Ceramic Material Prepared with Treated Activated Carbon from Empty Fruit Bunches (EFB)

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