Electrochemical performance of protonic ceramic fuel cells with stable BaZrO3-based electrolyte: A mini-review

Dai, Hailu; Kou, Hongning; Wang, Huiqiang; Bi, Lei

doi:10.1016/j.elecom.2018.09.001

Cited by 109 publications

(27 citation statements)

References 86 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Regardless whether these transition metal elements were added deliberately or not, and even they functionalize positively as sintering additives, one major concern is how they influence the electrochemical properties of the BZY electrolyte. Recent studies revealed that NiO, CuO, and ZnO decreased both the proton conductivity and transport number of proton conduction of BZY significantly . Such negative impact on the electrochemical properties of BZY deteriorates the cell performance.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Electrochemical and structural influence on BaZr_0.8Y_0.2O_3‐δ from manganese, cobalt, and iron oxide additives

et al. 2019

View full text Add to dashboard Cite

Proton conductive BaZr0.8Y0.2O3−δ (BZY20) is a promising electrolyte candidate with perspective application in electrochemical devices, including fuel cells, electrolyzer cells. Mn, Fe, and Co are commonly incorporated into BZY20, to improve the sinterability (CoO), or due to possible inter‐diffusion by calcining with cathode materials (eg, La1−xSrxMnO3−δ, La1−xSrxCo1−yFeyO3−δ) for cell preparation. This work was performed to investigate the influence of Mn, Fe, and Co on the structural and electrochemical properties of BZY20. As reported in literature, the sinterability of BZY20 was improved by adding CoO. XANES analysis shows that Mn, Fe, and Co are possibly incorporated into the perovskite crystal structure of BZY20, and are partially reduced when the samples were exposed to hydrogen at 600°C for 24 hours. However, through electrochemical analysis, we found that all these three elements decrease both the proton conductivity and transport numbers of proton conduction of BZY20. Therefore, the BZY20 electrolyte should be carefully handled to avoid the incorporation of these transition metal elements, to fabricate the cells with high performance.

show abstract

Section: Introductionmentioning

confidence: 99%

“…Recent studies revealed that NiO, CuO, and ZnO decreased both the proton conductivity and transport number of proton conduction of BZY significantly. 21,27,28 Such negative impact on the electrochemical properties of BZY deteriorates the cell performance.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical and structural influence on BaZr_0.8Y_0.2O_3‐δ from manganese, cobalt, and iron oxide additives

et al. 2019

View full text Add to dashboard Cite

show abstract

“…2,5,7,10 In particular, BaCeO 3 -and BaZrO 3 -based perovskite materials are the most popular and representative proton-conducting electrolytes. BaCeO 3 -based electrolytes display proton conductivities in the 10 −2 -10 −1 S cm −1 range at 600°C-700°C under wet 5% H 2 /Ar, 2,13,14 whereas the BaZrO 3 -based electrolytes show high bulk conductivities (σ bulk ) 15,16 and chemical stability under CO 2 atmosphere. 1,14,16 Yttria (Y 2 O 3 ) is added to create the oxygen vacancies that are needed for the hydration reaction to happen, facilitating water incorporation and proton conduction.…”

Section: Introductionmentioning

confidence: 99%

“…BaCeO 3 -based electrolytes display proton conductivities in the 10 −2 -10 −1 S cm −1 range at 600°C-700°C under wet 5% H 2 /Ar, 2,13,14 whereas the BaZrO 3 -based electrolytes show high bulk conductivities (σ bulk ) 15,16 and chemical stability under CO 2 atmosphere. 1,14,16 Yttria (Y 2 O 3 ) is added to create the oxygen vacancies that are needed for the hydration reaction to happen, facilitating water incorporation and proton conduction. However, the drawback of the Y-doped BaCeO 3 (BCY) is its chemical instability, especially in water vapor or CO 2 -containing atmospheres.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the sinterability and electrical properties of BaZr_0.1Ce_0.7Y_0.2O_3‐δ proton‐conducting ceramic electrolyte

Wang

Yang

et al. 2020

J. Am. Ceram. Soc.

View full text Add to dashboard Cite

A novel strategy was proposed to enhance the sinterability and electrical properties of BaZr 0.1 Ce 0.7 Y 0.2 O 3-δ (BZCY) proton-conducting electrolyte by adding 10 wt.% La 0.9 Sr 0.1 Ga 0.8 Mg 0.2 O 3-δ (LSGM) to form a 90 wt.% BZCY-10 wt.% LSGM (BL91) composite electrolyte. XRD patterns showed that no reaction occurred between How to cite this article: Yu S, Wang Z, Yang L, et al. Enhancing the sinterability and electrical properties of BaZr 0.1 Ce 0.7 Y 0.2 O 3-δ proton-conducting ceramic electrolyte.

show abstract

“…These features allows PCOs to be utilized as electrolytes for various types of electrochemical devices (EDs) such as solid oxide fuel cells (SOFCs), solid oxide electrolysis cells (SOECs), pumps and sensors [6][7][8][9]. As a result of high realizable conductivity levels of PCOs, the mentioned devices can operate at reduced temperatures (below 600 °C) compared with the conventional systems based on oxygen-ionic electrolytes [10,11].…”

Section: Introductionmentioning

confidence: 99%

Manipulating the grain boundary properties of BaCeO₃-based ceramic materials through sintering additives introduction

et al. 2019

View full text Add to dashboard Cite

BaCeO 3 -based materials represent a well-known family of proton-conducting electrolytes, which can be used in different solid oxide electrochemical devices. An effective operation of the latter across an intermediate-temperature range requires improved transport of PCEs, including their grain (G) and grain boundary (GB) components. In the present work, some 3d-elements in a small amount were used as sintering additives to verify the possibility of improving the GB conductivity of BaCe 0.9 Gd 0.1 O 3-δ . It is shown that copper oxide (CuO) can be considered as one of the most effective sintering agents, since its use enables decreasing the GB density of the BCG ceramic material at the reduced sintering temperatures. The obtained results form a new tactic for designing new protonic electrolytes, whose conductivity might be prevail over ones containing Ni-based modifiers.

show abstract

Electrochemical performance of protonic ceramic fuel cells with stable BaZrO3-based electrolyte: A mini-review

Cited by 109 publications

References 86 publications

Electrochemical and structural influence on BaZr_0.8Y_0.2O_3‐δ from manganese, cobalt, and iron oxide additives

Electrochemical and structural influence on BaZr_0.8Y_0.2O_3‐δ from manganese, cobalt, and iron oxide additives

Enhancing the sinterability and electrical properties of BaZr_0.1Ce_0.7Y_0.2O_3‐δ proton‐conducting ceramic electrolyte

Manipulating the grain boundary properties of BaCeO₃-based ceramic materials through sintering additives introduction

Contact Info

Product

Resources

About

Electrochemical performance of protonic ceramic fuel cells with stable BaZrO3-based electrolyte: A mini-review

Cited by 109 publications

References 86 publications

Electrochemical and structural influence on BaZr0.8Y0.2O3‐δ from manganese, cobalt, and iron oxide additives

Electrochemical and structural influence on BaZr0.8Y0.2O3‐δ from manganese, cobalt, and iron oxide additives

Enhancing the sinterability and electrical properties of BaZr0.1Ce0.7Y0.2O3‐δ proton‐conducting ceramic electrolyte

Manipulating the grain boundary properties of BaCeO3-based ceramic materials through sintering additives introduction

Contact Info

Product

Resources

About

Electrochemical and structural influence on BaZr_0.8Y_0.2O_3‐δ from manganese, cobalt, and iron oxide additives

Electrochemical and structural influence on BaZr_0.8Y_0.2O_3‐δ from manganese, cobalt, and iron oxide additives

Enhancing the sinterability and electrical properties of BaZr_0.1Ce_0.7Y_0.2O_3‐δ proton‐conducting ceramic electrolyte

Manipulating the grain boundary properties of BaCeO₃-based ceramic materials through sintering additives introduction