4 research outputs found
Hydrothermally-assisted recovery of Yttria- stabilized zirconia (YSZ) from end-of-life solid oxide cells
Effective and scalable recycling strategies for the recovery of critical raw materials are yet to be validated for solid oxide cells (SOCs) technologies. The current study aimed at filling this gap by developing optimized recycling processes for the recovery of Yttria-stabilized Zirconia (YSZ) from End-of-Life (EoL) SOC components, in view of using the recovered ceramic phase in cell re-manufacturing. A multi-step procedure, including milling, hydrothermal treatment (HT), and acidic-assisted leaching of nickel from composite Ni-YSZ materials, has been implemented to obtain recovered YSZ powders with defined specifications, in terms of particle size distribution, specific surface area, and chemical purity. The overall optimized procedure includes a pre-milling step (6 h) of the EoL composite materials, and a hydrothermal (HT) treatment at 200 Β°C for 4 h to further disaggregate the sintered composite, followed by selective oxidative leaching of Ni2+ by HNO3 solution at 80 Β°C for 2 h. In particular, the intermediate HT step was assessed to play an essential role in promoting the disaggregation of the sintered powders, with a related increase of specific surface area (up to 13 m2 gβ1) and the overall reduction of the primary particle aggregates. The acid-assisted leaching allowed to fully extract Nickel from the composite Ni-YSZ powders, with retention of YSZ crystallinity and negligible loss of Zr and Y, as revealed by ICP analysis on the recovered supernatants. The developed multi-step pathway offers a promising strategy to recover valuable YSZ materials for the re-manufacturing of SOCs components, with the aim to boost a circular economy approach in the field of fuel-cell and hydrogen (FCH) technologies
Π‘ΠΈΠ½ΡΠ΅Π· Π»ΡΠΌΠΈΠ½Π΅ΡΡΠ΅Π½ΡΠ½ΡΡ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ² Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΡΠ΅Π΄ΠΊΠΎΠ·Π΅ΠΌΠ΅Π»ΡΠ½ΡΡ ΠΎΠΊΡΠΎΡΡΠΎΡΠΈΠ΄ΠΎΠ²
ΠΡΠΎΠ±Π»Π΅ΠΌΠ°ΡΠΈΠΊΠ°. Π ΠΎΠ·ΡΠΎΠ±ΠΊΠ° Π½ΠΎΠ²ΠΈΡ
ΠΌΠ°ΡΠ΅ΡΡΠ°Π»ΡΠ² Π΄Π»Ρ ΡΠΈΡΡΠ΅ΠΌ Π²ΡΠ΄ΠΎΠ±ΡΠ°ΠΆΠ΅Π½Π½Ρ ΡΠ° ΡΠ΅ΡΡΡΡΠ°ΡΡΡ ΠΎΠΏΡΠΈΡΠ½ΠΈΡ
ΡΠΈΠ³Π½Π°Π»ΡΠ², ΡΠΊΡ ΠΌΠΎΠΆΡΡΡ ΠΏΡΠ°ΡΡΠ²Π°ΡΠΈ Π² Π΄ΡΠ°ΠΏΠ°Π·ΠΎΠ½Ρ ΡΠ½ΡΡΠ°ΡΠ΅ΡΠ²ΠΎΠ½ΠΎΠ³ΠΎ Π²ΠΈΠΏΡΠΎΠΌΡΠ½ΡΠ²Π°Π½Π½Ρ, Π·Π°Π»ΠΈΡΠ°ΡΡΡΡΡ Π°ΠΊΡΡΠ°Π»ΡΠ½ΠΎΡ. ΠΠ°Π»ΡΠ·Ρ ΠΎΠΏΡΠΈΠΊΠΈ Π·ΡΡΠΊΠ½ΡΠ»Π°ΡΡ Π· ΠΏΡΠΎΠ±Π»Π΅ΠΌΠΎΡ, ΠΊΠΎΠ»ΠΈ Π²ΡΠ΄ΠΎΠΌΡ ΡΠΈΡΡΠ΅ΠΌΠΈ Π½Π° ΠΎΡΠ½ΠΎΠ²Ρ ΡΠΈΠ»ΡΠΊΠ°ΡΠ½ΠΎΠ³ΠΎ ΡΠΊΠ»Π° Π½Π΅ Π·Π°Π±Π΅Π·ΠΏΠ΅ΡΡΡΡΡ Π½Π΅ΠΎΠ±Ρ
ΡΠ΄Π½ΠΎΡ ΡΠΈΡΠΈΠ½ΠΈ Π·ΠΎΠ½ΠΈ ΠΏΡΠΎΠ·ΠΎΡΠΎΡΡΡ, Π° ΠΌΠ°ΡΠ΅ΡΡΠ°Π»ΠΈ Π½Π° ΠΎΡΠ½ΠΎΠ²Ρ ΡΡΠΎΡΠΈΠ΄ΡΠ² ΠΌΠ΅ΡΠ°Π»ΡΠ² ΠΌΠ°ΡΡΡ Π½ΠΈΠ·ΡΠΊΡ Ρ
ΡΠΌΡΡΠ½Ρ ΡΡΡΠΉΠΊΡΡΡΡ. ΠΠ΅ΡΠ° Π΄ΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Π½Ρ. Π ΠΎΠ·ΡΠΎΠ±ΠΊΠ° ΠΌΠ΅ΡΠΎΠ΄ΠΎΠ»ΠΎΠ³ΡΡ, ΡΠΏΡΡΠΌΠΎΠ²Π°Π½ΠΎΡ Π½Π° ΡΠΈΠ½ΡΠ΅Π· ΡΠ° Π΄ΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Π½Ρ Π²Π»Π°ΡΡΠΈΠ²ΠΎΡΡΠ΅ΠΉ ΡΡΠΎΡΠΈΠ΄Π½ΠΈΡ
ΡΡΠ΅ΠΊΠΎΠ» Ρ ΠΎΠΊΡΠΎΡΡΠΎΡΠΈΠ΄ΡΠ² ΡΡΠ΄ΠΊΡΡΠ½ΠΎΠ·Π΅ΠΌΠ΅Π»ΡΠ½ΠΈΡ
Π΅Π»Π΅ΠΌΠ΅Π½ΡΡΠ² (Π ΠΠ) ΡΠ° ΡΡΡΡΡ. ΠΠ΅ΡΠΎΠ΄ΠΈΠΊΠ° ΡΠ΅Π°Π»ΡΠ·Π°ΡΡΡ. ΠΠ°ΡΡΠΎΡΠΎΠ²Π°Π½ΠΎ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠ½ΠΈΠΉ ΠΏΡΠ΄Ρ
ΡΠ΄ Π΄ΠΎ ΡΠΈΠ½ΡΠ΅Π·Ρ ΡΠ° Π΄ΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Ρ ΡΠ· Π²ΠΈΠΊΠΎΡΠΈΡΡΠ°Π½Π½ΡΠΌ ΡΠ΅ΡΠΌΡΡΠ½ΠΈΡ
, ΡΠ΅Π½ΡΠ³Π΅Π½ΡΠ²ΡΡΠΊΠΈΡ
, Π»ΡΠΌΡΠ½Π΅ΡΡΠ΅Π½ΡΠ½ΠΈΡ
ΡΠ° ΡΠ½ΡΠΈΡ
ΠΌΠ΅ΡΠΎΠ΄ΡΠ². Π―ΠΊ Π²ΠΈΡ
ΡΠ΄Π½Ρ ΡΠ΅ΡΠΎΠ²ΠΈΠ½ΠΈ Π²ΠΈΠΊΠΎΡΠΈΡΡΠΎΠ²ΡΠ²Π°Π»ΠΈΡΡ ΠΊΠΎΠΌΠ΅ΡΡΡΠΉΠ½Ρ ΡΠΏΠΎΠ»ΡΠΊΠΈ ZrF4; LaF3; AlF3; GaF3; BaF2; YF3; Y2O3; EuF3; Eu2O3; GdF3; Gd2O3; TbF3; Tb2O3. Π Π΅Π·ΡΠ»ΡΡΠ°ΡΠΈ Π΄ΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Π½Ρ. ΠΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½ΠΎ ΠΌΠΎΠΆΠ»ΠΈΠ²ΡΡΡΡ ΡΡΠ²ΠΎΡΠ΅Π½Π½Ρ Π»ΡΠΌΡΠ½Π΅ΡΡΠ΅Π½ΡΠ½ΠΈΡ
ΠΌΠ°ΡΠ΅ΡΡΠ°Π»ΡΠ² Π½Π° ΠΎΡΠ½ΠΎΠ²Ρ ΡΡΠΎΡΠΈΠ΄Π½ΠΎΠ³ΠΎ ΡΠΊΠ»Π° ΡΠΊΠ»Π°Π΄Ρ 95 % ZLAG + 5 % ZBLA ΡΠ° ΠΎΠΊΡΠΎΡΡΠΎΡΠΈΠ΄ΡΠ² Π ΠΠ. ΠΡΠΈ ΡΠΈΠ½ΡΠ΅Π·Ρ ΡΠΈΡ
ΠΌΠ°ΡΠ΅ΡΡΠ°Π»ΡΠ² ΡΠΊ Π»ΡΠΌΡΠ½ΠΎΡΠΎΡΠΈ Π±ΡΠ»ΠΎ Π²ΠΈΠΊΠΎΡΠΈΡΡΠ°Π½ΠΎ ΡΠΏΠΎΠ»ΡΠΊΠΈ ΡΠ²ΡΠΎΠΏΡΡ Ρ ΡΠ΅ΡΠ±ΡΡ, ΡΠΊΡ Π²ΠΈΠΏΡΠΎΠΌΡΠ½ΡΡΡΡ ΡΠ²ΡΡΠ»ΠΎ Ρ Π²ΠΈΠ΄ΠΈΠΌΡΠΉ ΡΠ°ΡΡΠΈΠ½Ρ ΡΠΏΠ΅ΠΊΡΡΠ°. ΠΠΈΡΠ½ΠΎΠ²ΠΊΠΈ. Π‘ΠΈΠ½ΡΠ΅Π·ΠΎΠ²Π°Π½Ρ ΡΡΠΎΡΠΈΠ΄Π½Ρ ΡΡΠ΅ΠΊΠ»Π° ΠΌΠΎΠΆΡΡΡ Π±ΡΡΠΈ Π²ΠΈΠΊΠΎΡΠΈΡΡΠ°Π½Ρ ΡΠΊ ΠΏΠ΅ΡΡΠΏΠ΅ΠΊΡΠΈΠ²Π½Ρ ΠΌΠ°ΡΠ΅ΡΡΠ°Π»ΠΈ Π΄Π»Ρ ΠΎΠΏΡΠΈΡΠ½ΠΈΡ
ΠΏΡΠ΄ΡΠΈΠ»ΡΠ²Π°ΡΡΠ² ΡΠ° Π»Π°Π·Π΅ΡΡΠ². ΠΠΊΡΠΎΡΡΠΎΡΠΈΠ΄ΠΈ, ΠΌΠ°ΡΡΠΈ Π³Π°ΡΠ½Ρ ΠΏΠΎΠΊΠ°Π·Π½ΠΈΠΊΠΈ Π²ΠΈΡ
ΠΎΠ΄Ρ ΡΠΎΡΠΎΠ»ΡΠΌΡΠ½Π΅ΡΡΠ΅Π½ΡΡΡ ΡΠ° ΡΡΠ·ΠΈΠΊΠΎ-Ρ
ΡΠΌΡΡΠ½Ρ ΡΠ½Π΅ΡΡΠ½ΡΡΡΡ Π΄ΠΎ Π°Π³ΡΠ΅ΡΠΈΠ²Π½ΠΈΡ
ΡΠ΅ΡΠ΅Π΄ΠΎΠ²ΠΈΡ, ΠΌΠΎΠΆΡΡΡ ΡΡΠ°ΡΠΈ ΠΏΠ΅ΡΡΠΏΠ΅ΠΊΡΠΈΠ²Π½ΠΈΠΌΠΈ ΠΌΠ°ΡΠ΅ΡΡΠ°Π»Π°ΠΌΠΈ Π΄Π»Ρ Π²ΠΈΠ³ΠΎΡΠΎΠ²Π»Π΅Π½Π½Ρ Π»ΡΠΌΡΠ½Π΅ΡΡΠ΅Π½ΡΠ½ΠΈΡ
ΠΌΠ°ΡΠ΅ΡΡΠ°Π»ΡΠ² Π΄Π»Ρ ΡΠΈΡΠΎΠΊΠΎΠ³ΠΎ Π²ΠΈΠΊΠΎΡΠΈΡΡΠ°Π½Π½Ρ.Background. Development of new materials for the systems of reflection and registration of visual signals that can work in the infrared range remains an ongoing. Industry of optics ran into a problem, when the known systems based on silicate glass do not provide the necessary width of zone of transparency, and materials based on fluoride of metals have subzero chemical firmness. Objective. The aim of the work is development of the methodology towards the synthesis and research of properties of fluoride glasses and oxyfluorides of rare-earth elements (REE) and yttrium. Methods. To achieve the goal approach is applied in relation to a synthesis and research with the use of thermal, x-rayed, luminescent and other methods. As initial substances commercial connections ZrF4; LaF3; AlF3; GaF3; BaF2; YF3; Y2O3; EuF3; Eu2O3; GdF3; Gd2O3; TbF3; Tb2O3 were used. Results. The possibility to create luminescent materials based on fluoride glasses of 95 % ZLAG + 5 % ZBLA and oxyfluorides of REE has been studied. For synthesis of these materials europium and terbium compounds have been used as luminophores emitting in visible spectrum. Conclusions. According to the experimental data, it can be concluded that synthesized fluoride glasses can be used as perspective materials for optic amplifiers and lasers, where besides physical properties, one of the most important requirements is a possibility to take a necessary form of final product. The oxyfluorides having good photoluminescent yield and resistivity to aggressive milieu can be perspective materials for luminescent dispositifs of common use.ΠΡΠΎΠ±Π»Π΅ΠΌΠ°ΡΠΈΠΊΠ°. Π Π°Π·ΡΠ°Π±ΠΎΡΠΊΠ° Π½ΠΎΠ²ΡΡ
ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ² Π΄Π»Ρ ΡΠΈΡΡΠ΅ΠΌ ΠΎΡΡΠ°ΠΆΠ΅Π½ΠΈΡ ΠΈ ΡΠ΅Π³ΠΈΡΡΡΠ°ΡΠΈΠΈ ΠΎΠΏΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠΈΠ³Π½Π°Π»ΠΎΠ², ΠΊΠΎΡΠΎΡΡΠ΅ ΠΌΠΎΠ³ΡΡ ΡΠ°Π±ΠΎΡΠ°ΡΡ Π² Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½Π΅ ΠΈΠ½ΡΡΠ°ΠΊΡΠ°ΡΠ½ΠΎΠ³ΠΎ ΠΈΠ·Π»ΡΡΠ΅Π½ΠΈΡ, ΠΎΡΡΠ°Π΅ΡΡΡ Π°ΠΊΡΡΠ°Π»ΡΠ½ΠΎΠΉ. ΠΡΡΠ°ΡΠ»Ρ ΠΎΠΏΡΠΈΠΊΠΈ ΡΡΠΎΠ»ΠΊΠ½ΡΠ»Π°ΡΡ Ρ ΠΏΡΠΎΠ±Π»Π΅ΠΌΠΎΠΉ, ΠΊΠΎΠ³Π΄Π° ΠΈΠ·Π²Π΅ΡΡΠ½ΡΠ΅ ΡΠΈΡΡΠ΅ΠΌΡ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΡΠΈΠ»ΠΈΠΊΠ°ΡΠ½ΠΎΠ³ΠΎ ΡΡΠ΅ΠΊΠ»Π° Π½Π΅ ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ²Π°ΡΡ Π½Π΅ΠΎΠ±Ρ
ΠΎΠ΄ΠΈΠΌΡΡ ΡΠΈΡΠΈΠ½Ρ Π·ΠΎΠ½Ρ ΠΏΡΠΎΠ·ΡΠ°ΡΠ½ΠΎΡΡΠΈ, Π° ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Ρ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΡΡΠΎΡΠΈΠ΄ΠΎΠ² ΠΌΠ΅ΡΠ°Π»Π»ΠΎΠ² ΠΈΠΌΠ΅ΡΡ Π½ΠΈΠ·ΠΊΡΡ Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΡΡ ΡΡΠΎΠΉΠΊΠΎΡΡΡ. Π¦Π΅Π»Ρ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ. Π Π°Π·ΡΠ°Π±ΠΎΡΠΊΠ° ΠΌΠ΅ΡΠΎΠ΄ΠΎΠ»ΠΎΠ³ΠΈΠΈ, Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½Π½ΠΎΠΉ Π½Π° ΡΠΈΠ½ΡΠ΅Π· ΠΈ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ ΡΠ²ΠΎΠΉΡΡΠ² ΡΡΠ΅ΠΊΠΎΠ» ΡΡΠΎΡΠΈΠ΄ΠΎΠ² ΠΈ ΠΎΠΊΡΠΎΡΡΠΎΡΠΈΠ΄ΠΎΠ² ΡΠ΅Π΄ΠΊΠΎΠ·Π΅ΠΌΠ΅Π»ΡΠ½ΡΡ
ΡΠ»Π΅ΠΌΠ΅Π½ΡΠΎΠ² (Π ΠΠ) ΠΈ ΠΈΡΡΡΠΈΡ. ΠΠ΅ΡΠΎΠ΄ΠΈΠΊΠ° ΡΠ΅Π°Π»ΠΈΠ·Π°ΡΠΈΠΈ. ΠΡΠΈΠΌΠ΅Π½Π΅Π½ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠ½ΡΠΉ ΠΏΠΎΠ΄Ρ
ΠΎΠ΄ ΠΎΡΠ½ΠΎΡΠΈΡΠ΅Π»ΡΠ½ΠΎ ΡΠΈΠ½ΡΠ΅Π·Π° ΠΈ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ Ρ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ ΡΠ΅ΡΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
, ΡΠ΅Π½ΡΠ³Π΅Π½ΠΎΠ²ΡΠΊΠΈΡ
, Π»ΡΠΌΠΈΠ½Π΅ΡΡΠ΅Π½ΡΠ½ΡΡ
ΠΈ Π΄ΡΡΠ³ΠΈΡ
ΠΌΠ΅ΡΠΎΠ΄ΠΎΠ². Π ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ ΠΈΡΡ
ΠΎΠ΄Π½ΡΡ
Π²Π΅ΡΠ΅ΡΡΠ² ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π»ΠΈΡΡ ΠΊΠΎΠΌΠΌΠ΅ΡΡΠ΅ΡΠΊΠΈΠ΅ ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΡ ZrF4; LaF3; AlF3; GaF3; BaF2; YF3; Y2O3; EuF3; Eu2O3; GdF3; Gd2O3; TbF3; Tb2O3. Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ. ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½Π° Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡ ΡΠΎΠ·Π΄Π°Π½ΠΈΡ Π»ΡΠΌΠΈΠ½Π΅ΡΡΠ΅Π½ΡΠ½ΡΡ
ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ² Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΡΡΠΎΡΠΈΠ΄Π½ΠΎΠ³ΠΎ ΡΡΠ΅ΠΊΠ»Π° ΡΠΎΡΡΠ°Π²Π° 95 % ZLAG + 5 % ZBLA ΠΈ ΠΎΠΊΡΠΎΡΡΠΎΡΠΈΠ΄ΠΎΠ² Π ΠΠ. ΠΡΠΈ ΡΠΈΠ½ΡΠ΅Π·Π΅ Π΄Π°Π½Π½ΡΡ
ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ² Π² ΡΠΎΠ»ΠΈ Π»ΡΠΌΠΈΠ½ΠΎΡΠΎΡΠΎΠ² Π±ΡΠ»ΠΈ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½Ρ ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΡ Π΅Π²ΡΠΎΠΏΠΈΡ ΠΈ ΡΠ΅ΡΠ±ΠΈΡ, ΠΊΠΎΡΠΎΡΡΠ΅ ΠΈΠ·Π»ΡΡΠ°ΡΡ ΡΠ²Π΅Ρ Π² Π²ΠΈΠ΄ΠΈΠΌΠΎΠΉ ΡΠ°ΡΡΠΈ ΡΠΏΠ΅ΠΊΡΡΠ°. ΠΡΠ²ΠΎΠ΄Ρ. Π‘ΠΈΠ½ΡΠ΅Π·ΠΈΡΠΎΠ²Π°Π½Π½ΡΠ΅ ΡΡΠ΅ΠΊΠ»Π° ΡΡΠΎΡΠΈΠ΄ΠΎΠ² ΠΌΠΎΠ³ΡΡ Π±ΡΡΡ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½Ρ Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ ΠΏΠ΅ΡΡΠΏΠ΅ΠΊΡΠΈΠ²Π½ΡΡ
ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ² Π΄Π»Ρ ΠΎΠΏΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΡΠΈΠ»ΠΈΡΠ΅Π»Π΅ΠΉ ΠΈ Π»Π°Π·Π΅ΡΠΎΠ². ΠΠΊΡΠΎΡΡΠΎΡΠΈΠ΄Ρ, ΠΈΠΌΠ΅Ρ Ρ
ΠΎΡΠΎΡΠΈΠ΅ ΠΏΠΎΠΊΠ°Π·Π°ΡΠ΅Π»ΠΈ Π²ΡΡ
ΠΎΠ΄Π° ΡΠΎΡΠΎΠ»ΡΠΌΠΈΠ½Π΅ΡΡΠ΅Π½ΡΠΈΠΈ ΠΈ ΡΠΈΠ·ΠΈΠΊΠΎ-Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΡΡ ΠΈΠ½Π΅ΡΡΠ½ΠΎΡΡΡ ΠΊ Π°Π³ΡΠ΅ΡΡΠΈΠ²Π½ΡΠΌ ΡΡΠ΅Π΄Π°ΠΌ, ΠΌΠΎΠ³ΡΡ ΡΡΠ°ΡΡ ΠΏΠ΅ΡΡΠΏΠ΅ΠΊΡΠΈΠ²Π½ΡΠΌΠΈ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π°ΠΌΠΈ Π΄Π»Ρ ΠΈΠ·Π³ΠΎΡΠΎΠ²Π»Π΅Π½ΠΈΡ Π»ΡΠΌΠΈΠ½Π΅ΡΡΠ΅Π½ΡΠ½ΡΡ
ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ² Π΄Π»Ρ ΡΠΈΡΠΎΠΊΠΎΠ³ΠΎ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ
Octahydrotriborate de sodium NaB3H8 matΓ©riau pour le stockage chimique de lβhydrogΓ¨ne ou combustible de pile Γ combustible liquide ?
National audienc
Stack optimization and testing for its integration in a rSOC-based renewable energy storage system
International audienceStacks dedicated to rSOC operation require improvements as compared to stacks dedicated to purely SOEC or SOFC mode. Starting from an electrolysis stack, improvements have been performed in the European project REFLEX, mainly to enhance reactants distribution, reduce pressure drops, integrate new cells specifically developed as part of REFLEX project, and finally integrate larger cells to reduce stack and system cost and footprint. For easier handling, mechanical connection to the system was optimized. Long-term degradation tests were performed both for reference and optimized cells within two 5-cell stacks. A full size 25-cell stack was assembled integrating optimized connections to gases lines, specific stack clamping system and internal electrical insulation required for stack integration into REFLEX modules. For prospective reason enlarged cells were produced and integrated within first a 5-cell stack, and then a 25-cell stack. Finally, stability of performance along pre-serial manufacturing process was checked for 20 stacks before their delivery forintegration into REFLEX modules