Electrochemical p erformance  of La2NiO4+δ-Ce0.55La0.45O2-δ  as a promising bifunctional oxygen electrode for reversible solid oxide cells

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Abstract In this work, La2NiO4+δ-xCe0.55La0.45O2-δ (denoted as LNO-xLDC) with various LDC contents (x = 0, 10, 20, 30 and 40, wt %) were prepared and evaluated as bifunctional oxygen electrodes for reversible solid oxide cells (RSOCs). Compared with the pure LNO, the optimum composition of LNO-30LDC exhibited the lowest polarization resistance (Rp) of 0.53 and 0.12 Ω·cm2 in air at 650 and 750 oC, respectively. The enhanced electrochemical performance of LNO-30LDC oxygen electrode was mainly attributed to the extended triple phase boundary and more oxygen ionic transfer channels. The hydrogen electrode supported single cell with LNO-30LDC oxygen electrode displayed peak power densities of 276, 401 and 521 mW·cm-2 at 700, 750 and 800 oC, respectively. Moreover, the electrolysis current density of the single cell demonstrated 526.39 mA·cm-2 under 1.5 V at 800 oC, and the corresponding hydrogen production rate was 220.03 ml·cm-2·h-1. The encouraging results indicated that LNO-30LDC was a promising bifunctional oxygen electrode material for RSOCs.
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Electrochemical p erformance of La2NiO4+δ-Ce0.55La0.45O2-δ as a promising bifunctional oxygen electrode for reversible solid oxide cells | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Electrochemical p erformance of La2NiO4+δ-Ce0.55La0.45O2-δ as a promising bifunctional oxygen electrode for reversible solid oxide cells Pengzhang Li, Wei Yang, Chuanjin Tian, Wenyan Zhao, Zhe Lü, Zhipeng Xie, and 1 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-52270/v2 This work is licensed under a CC BY 4.0 License Status: Under Review Version 2 posted 12 You are reading this latest preprint version Show more versions Abstract In this work, La 2 NiO 4+δ -xCe 0.55 La 0.45 O 2-δ (denoted as LNO-xLDC) with various LDC contents (x = 0, 10, 20, 30 and 40, wt %) were prepared and evaluated as bifunctional oxygen electrodes for reversible solid oxide cells (RSOCs). Compared with the pure LNO, the optimum composition of LNO-30LDC exhibited the lowest polarization resistance ( R p ) of 0.53 and 0.12 Ω·cm 2 in air at 650 and 750 o C, respectively. The enhanced electrochemical performance of LNO-30LDC oxygen electrode was mainly attributed to the extended triple phase boundary and more oxygen ionic transfer channels. The hydrogen electrode supported single cell with LNO-30LDC oxygen electrode displayed peak power densities of 276, 401 and 521 mW·cm -2 at 700, 750 and 800 o C, respectively. Moreover, the electrolysis current density of the single cell demonstrated 526.39 mA·cm -2 under 1.5 V at 800 o C, and the corresponding hydrogen production rate was 220.03 ml·cm -2 ·h -1 . The encouraging results indicated that LNO-30LDC was a promising bifunctional oxygen electrode material for RSOCs. Ceramics La2NiO4+δ oxygen electrode electrochemical performance reversible solid oxide cells Figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Full Text Supplementary Files SupplementaryInformation.doc Cite Share Download PDF Status: Under Review Version 2 posted Review # 3 received at journal 11 Dec, 2020 Reviewer # 4 agreed at journal 03 Dec, 2020 Review # 4 received at journal 03 Dec, 2020 Reviewer # 3 agreed at journal 01 Dec, 2020 Review # 2 received at journal 01 Dec, 2020 Reviewer # 2 agreed at journal 30 Nov, 2020 Reviewers invited by journal 30 Nov, 2020 Reviewer # 1 agreed at journal 30 Nov, 2020 Review # 1 received at journal 30 Nov, 2020 Editor assigned by journal 29 Nov, 2020 Submission checks completed at journal 29 Nov, 2020 Editor invited by journal 29 Nov, 2020 You are reading this latest preprint version Show more versions Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-52270","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":5553492,"identity":"59f258da-3cdb-4898-ba31-17d30644618d","order_by":0,"name":"Pengzhang 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Ceramics","twitterHandle":"","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"em","reportingPortfolio":"BMC/SO AJ","inReviewEnabled":true,"inReviewRevisionsEnabled":true},"keywords":"La2NiO4+δ, oxygen electrode, electrochemical performance, reversible solid oxide cells","lastPublishedDoi":"10.21203/rs.3.rs-52270/v2","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-52270/v2","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eIn this work, La\u003csub\u003e2\u003c/sub\u003eNiO\u003csub\u003e4+δ\u003c/sub\u003e-xCe\u003csub\u003e0.55\u003c/sub\u003eLa\u003csub\u003e0.45\u003c/sub\u003eO\u003csub\u003e2-δ\u003c/sub\u003e (denoted as LNO-xLDC) with various LDC contents (x = 0, 10, 20, 30 and 40, wt %) were prepared and evaluated as bifunctional oxygen electrodes for reversible solid oxide cells (RSOCs). Compared with the pure LNO, the optimum composition of LNO-30LDC exhibited the lowest polarization resistance (\u003cem\u003eR\u003c/em\u003e\u003csub\u003ep\u003c/sub\u003e) of 0.53 and 0.12 Ω·cm\u003csup\u003e2\u003c/sup\u003e in air at 650 and 750 \u003csup\u003eo\u003c/sup\u003eC, respectively. The enhanced electrochemical performance of LNO-30LDC oxygen electrode was mainly attributed to the extended triple phase boundary and more oxygen ionic transfer channels. The hydrogen electrode supported single cell with LNO-30LDC oxygen electrode displayed peak power densities of 276, 401 and 521 mW·cm\u003csup\u003e-2\u003c/sup\u003e at 700, 750 and 800 \u003csup\u003eo\u003c/sup\u003eC, respectively. Moreover, the electrolysis current density of the single cell demonstrated 526.39 mA·cm\u003csup\u003e-2\u003c/sup\u003e under 1.5 V at 800 \u003csup\u003eo\u003c/sup\u003eC, and the corresponding hydrogen production rate was 220.03 ml·cm\u003csup\u003e-2\u003c/sup\u003e·h\u003csup\u003e-1\u003c/sup\u003e. The encouraging results indicated that LNO-30LDC was a promising bifunctional oxygen electrode material for RSOCs.\u003c/p\u003e","manuscriptTitle":"Electrochemical p erformance of La2NiO4+δ-Ce0.55La0.45O2-δ as a promising bifunctional oxygen electrode for reversible solid oxide cells","msid":"","msnumber":"","nonDraftVersions":[{"code":2,"date":"2020-12-10 01:03:17","doi":"10.21203/rs.3.rs-52270/v2","editorialEvents":[{"type":"communityComments","content":0},{"type":"editorInvitedReview","content":"","date":"2020-12-12T00:00:00+00:00","index":3,"fulltext":"Recommendation: Reviewer's comments unavailable due to the journal's policy.\n"},{"type":"reviewerAgreed","content":"","date":"2020-12-04T00:00:00+00:00","index":4,"fulltext":""},{"type":"editorInvitedReview","content":"","date":"2020-12-04T00:00:00+00:00","index":4,"fulltext":"Recommendation: Reviewer's comments unavailable due to the journal's 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