Moderate temperature sintering of BaZr0.8Y0.2O3-δ protonic ceramics by A novel cold sintering pretreatment

Zhao, Zeyu; Gao, Jun; Meng, Yuqing; Brinkman, Kyle S.; Tong, Jianhua

doi:10.1016/j.ceramint.2020.12.257

Title: Moderate temperature sintering of BaZr_0.8Y_0.2O_3-δ protonic ceramics by A novel cold sintering pretreatment

Abstract

The state-of-the-art protonic ceramic conductor BaZr_0.8Y_0.2O_3-δ (BZY20) requires an extremely high sintering temperature (≥1700 °C) to achieve the desired relative density and microstructure necessary to function as a proton conducting electrolyte. In this work, we developed a cold sintering pretreatment assisted moderate-temperature sintering method for the fabrication of high-quality pure BZY20 pellets. BZY20 pellets with high relative density of ~94% were fabricated with a final sintering temperature of 1500 °C (200 °C lower than the traditional sintering temperature). A comparison with BZY20 control samples indicated that the proper amount of BaCO₃ introduced on the BZY20 particle surface and the high green density achieved by cold sintering pretreatment were the main drivers for lowering the sintering temperature. The electrical conductivity measurement by electrochemical impedance spectroscopy showed that the as-prepared BZY20 pellets have a proton conductivity comparable to the state-of-the-art values. The cold sintering pretreatment outlined in this work has the potential to lower the sintering temperatures for similar types of protonic ceramic materials under consideration for a wide range of energy conversion and storage applications.

Authors:

^[1]; Gao, Jun ^[1]; Meng, Yuqing ^[1];

^[1]; Tong, Jianhua ^[1]

Clemson Univ., SC (United States). Dept. of Materials Science and Engineering

Publication Date:: Mon Jan 04 00:00:00 EST 2021

Research Org.:: Clemson Univ., SC (United States)

Sponsoring Org.:: USDOE Office of Nuclear Energy (NE)

OSTI Identifier:: 1850534

Alternate Identifier(s):: OSTI ID: 1809380

Grant/Contract Number:: NE0008703

Resource Type:: Accepted Manuscript

Journal Name:: Ceramics International

Additional Journal Information:: Journal Volume: 47; Journal Issue: 8; Journal ID: ISSN 0272-8842

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; Materials Science; Protonic ceramics; Cold sintering; Solid oxide fuel cells; Ceramic densification; Proton conductivity

Citation Formats


                    Zhao, Zeyu, Gao, Jun, Meng, Yuqing, Brinkman, Kyle S., and Tong, Jianhua. Moderate temperature sintering of BaZr0.8Y0.2O3-δ protonic ceramics by A novel cold sintering pretreatment.  United States: N. p., 2021. 
Web.  doi:10.1016/j.ceramint.2020.12.257.

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                    Zhao, Zeyu, Gao, Jun, Meng, Yuqing, Brinkman, Kyle S., & Tong, Jianhua. Moderate temperature sintering of BaZr0.8Y0.2O3-δ protonic ceramics by A novel cold sintering pretreatment.  United States.  https://doi.org/10.1016/j.ceramint.2020.12.257

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                    Zhao, Zeyu, Gao, Jun, Meng, Yuqing, Brinkman, Kyle S., and Tong, Jianhua. Mon .  
"Moderate temperature sintering of BaZr0.8Y0.2O3-δ protonic ceramics by A novel cold sintering pretreatment".  United States.  https://doi.org/10.1016/j.ceramint.2020.12.257.  https://www.osti.gov/servlets/purl/1850534.

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@article{osti_1850534,

  title        = {Moderate temperature sintering of BaZr0.8Y0.2O3-δ protonic ceramics by A novel cold sintering pretreatment},

  author       = {Zhao, Zeyu and Gao, Jun and Meng, Yuqing and Brinkman, Kyle S. and Tong, Jianhua},

  abstractNote = {The state-of-the-art protonic ceramic conductor BaZr0.8Y0.2O3-δ (BZY20) requires an extremely high sintering temperature (≥1700 °C) to achieve the desired relative density and microstructure necessary to function as a proton conducting electrolyte. In this work, we developed a cold sintering pretreatment assisted moderate-temperature sintering method for the fabrication of high-quality pure BZY20 pellets. BZY20 pellets with high relative density of ~94% were fabricated with a final sintering temperature of 1500 °C (200 °C lower than the traditional sintering temperature). A comparison with BZY20 control samples indicated that the proper amount of BaCO3 introduced on the BZY20 particle surface and the high green density achieved by cold sintering pretreatment were the main drivers for lowering the sintering temperature. The electrical conductivity measurement by electrochemical impedance spectroscopy showed that the as-prepared BZY20 pellets have a proton conductivity comparable to the state-of-the-art values. The cold sintering pretreatment outlined in this work has the potential to lower the sintering temperatures for similar types of protonic ceramic materials under consideration for a wide range of energy conversion and storage applications.},

  doi          = {10.1016/j.ceramint.2020.12.257},

  journal      = {Ceramics International},

  number       = 8,

  volume       = 47,

  place        = {United States},

  year         = {Mon Jan 04 00:00:00 EST 2021},

  month        = {Mon Jan 04 00:00:00 EST 2021}

}

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Title: Moderate temperature sintering of BaZr0.8Y0.2O3-δ protonic ceramics by A novel cold sintering pretreatment

Abstract

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Title: Moderate temperature sintering of BaZr_0.8Y_0.2O_3-δ protonic ceramics by A novel cold sintering pretreatment

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Conductivity studies of dense yttrium-doped BaZrO3 sintered at 1325°C
journal, December 2007

Steam electrolysis by solid oxide electrolysis cells (SOECs) with proton-conducting oxides
journal, January 2014

Stability and conductivity study of the BaCe0.9−xZrxY0.1O2.95 systems
journal, February 2007

Electrochemical Properties and Intermediate-Temperature Fuel Cell Performance of Dense Yttrium-Doped Barium Zirconate with Calcium Addition
journal, August 2011

Conductivity study of dense BaZr0.9Y0.1O(3−δ) obtained by spark plasma sintering
journal, April 2012

Effect of ionic radii of dopants on mixed ionic conduction (H++O2−) in BaCeO3-based electrolytes
journal, May 1994

Fundamentals of Synthesis, Sintering Issues, and Chemical Stability of BaZr _0.1 Ce _0.7 Y _0.1 Yb _0.1 O _3-δ Proton Conducting Electrolyte for SOFCs
journal, January 2015

Synthesis strategies for improving the performance of doped-BaZrO ₃ materials in solid oxide fuel cell applications
journal, August 2013

Structural study and proton transport of bulk nanograined Y-doped BaZrO₃ oxide protonics materials
journal, April 2008

Application of the cold sintering process to the electrolyte material BaCe0.8Zr0.1Y0.1O3-δ
journal, August 2020

Advanced Proton Conducting Ceramic Cell as Energy Storage Device
journal, January 2017

Electrochemical and structural influence on BaZr _0.8 Y _0.2 O _3‐δ from manganese, cobalt, and iron oxide additives
journal, August 2019

Fluoride‐Based Anion Doping: A New Strategy for Improving the Performance of Protonic Ceramic Conductors of the Form BaZrO ₃
journal, April 2020