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001038427 1001_ $$0P:(DE-HGF)0$$aTürk, Hanna$$b0$$eCorresponding author
001038427 245__ $$aBoon and Bane of Local Solid State Chemistry on the Performance of LSM-Based Solid Oxide Electrolysis Cells
001038427 260__ $$aWeinheim$$bWiley-VCH$$c2024
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001038427 520__ $$aHigh-temperature solid oxide cells are highly efficient energy converters. However, their lifetime is limited by rapid deactivation. Little is known about the local, atomic scale transformation that drive this degradation. Here, reaction-induced changes are unraveled at the atomic scale of a solid oxide electrolysis cell (SOEC) operated for 550 h by combining high-resolution scanning transmission electron microscopy with first-principles and force-field-based atomistic simulations. We focus on the structural evolution of lanthanum strontium manganite (LSM)/yttria-stabilized zirconia (YSZ) regions and the corresponding solid–solid interface. It is found that the strong inter-diffusion of cations leads to the additional formation and growth of a multitude of localized structures such as a solid solution of La/Mn, nano-domains of secondary structures or antisite defects in the YSZ, as well as a mixed ion and electron conduction region in the LSM and complexion. These local structures can be likewise beneficial or detrimental to the performance, by either increasing the catalytically active area or by limiting the supply of reactants. The work provides unprecedented atomistic insights into the influence of local solid-state chemistry on the functioning of SOECs and deepens the understanding of the degradation mechanism in SOECs, paving the way towards nanoscopic rational interface design for more efficient and durable cells.
001038427 536__ $$0G:(DE-HGF)POF4-1232$$a1232 - Power-based Fuels and Chemicals (POF4-123)$$cPOF4-123$$fPOF IV$$x0
001038427 7001_ $$0P:(DE-HGF)0$$aTran, Xuan Quy$$b1$$eCorresponding author
001038427 7001_ $$0P:(DE-HGF)0$$aKönig, Patricia$$b2
001038427 7001_ $$0P:(DE-HGF)0$$aHammud, Adnan$$b3
001038427 7001_ $$0P:(DE-Juel1)169490$$aVibhu, Vaibhav$$b4
001038427 7001_ $$0P:(DE-HGF)0$$aSchmidt, Franz-Philipp$$b5
001038427 7001_ $$0P:(DE-HGF)0$$aBerger, Dirk$$b6
001038427 7001_ $$0P:(DE-HGF)0$$aSelve, Sören$$b7
001038427 7001_ $$0P:(DE-HGF)0$$aRoddatis, Vladimir$$b8
001038427 7001_ $$0P:(DE-HGF)0$$aAbou-Ras, Daniel$$b9
001038427 7001_ $$0P:(DE-HGF)0$$aGirgsdies, Frank$$b10
001038427 7001_ $$0P:(DE-HGF)0$$aChan, Yu-Te$$b11
001038427 7001_ $$0P:(DE-HGF)0$$aGötsch, Thomas$$b12
001038427 7001_ $$0P:(DE-Juel1)194930$$aAli, Hebatallah$$b13
001038427 7001_ $$0P:(DE-Juel1)129936$$aVinke, Izaak C.$$b14
001038427 7001_ $$0P:(DE-Juel1)129952$$ade Haart, L. G. J.$$b15
001038427 7001_ $$0P:(DE-HGF)0$$aLehmann, Michael$$b16
001038427 7001_ $$0P:(DE-HGF)0$$aKnop-Gericke, Axel$$b17
001038427 7001_ $$0P:(DE-HGF)0$$aReuter, Karsten$$b18
001038427 7001_ $$0P:(DE-Juel1)156123$$aEichel, Rüdiger-A.$$b19$$ufzj
001038427 7001_ $$0P:(DE-Juel1)184961$$aScheurer, Christoph$$b20
001038427 7001_ $$0P:(DE-HGF)0$$aLunkenbein, Thomas$$b21$$eCorresponding author
001038427 773__ $$0PERI:(DE-600)2594556-7$$a10.1002/aenm.202405599$$p2405599$$tAdvanced energy materials$$v0$$x1614-6832$$y2024
001038427 8564_ $$uhttps://onlinelibrary.wiley.com/doi/10.1002/aenm.202405599
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