Magnesium Hydride Synthesis ʻo fakafou ʻi Hydrolysis

Ko e Ultrasonication ko ha founga lelei mo faingofua ia ke ngaohi magnesium hydride ki fakapaaki ʻo e storage. Fakaʻata fakavaveʻi ange ʻa e hydrolysis ʻo magnesium mo fakapaaki ʻo e kae lava ke faʻu magnesium hydride. ʻI hono fakafehoanaki atu ki he founga dissociative angamaheni chemisorption, ultrasonic hydrolysis ʻo magnesium hydride ʻoku lele ia ʻi he mafana ʻo e loki pea takai e malohi. ʻOku ʻai ʻe he meʻa ni ke faingofua, malu mo faingofua ʻa e halanga kemikale sono. ʻOku fakaʻata ʻe he ngaue fakaʻata maʻolunga ʻa e ngaohi ʻaukai mo e ʻaonga ʻo e magnesium hydride bulks.

Magnesium Hydride ki he tauhiʻanga ʻo e fakapaaki ʻo e

Magnesium hydride can be efficiently and inexpensively syntheiszed via ultrasonic hydrolysisMagnesium hydride, MgH2, kuo ne tohoakiʻi ʻa e tokanga lahi ko ha fili ki fakapaaki ʻo e storage. Ko e ngaahi tefitoʻi lelei ko ʻene maʻuʻanga tokoni lahi, ngaue maʻolunga, mamafa ʻo e mama, totongi maʻulalo, mo e malu. ʻI hono fakafehoanaki ki he ngaahi hydrides kehe ki hono fakaʻaongaʻi fakapaaki ʻo e storage, MgH2 maʻu ʻa e fakapaaki ʻo e maʻolunga taha densities ʻo aʻu ki he 7.6 Uat%. ʻE lava ke tauhi ʻa e fakapaaki ʻo e ʻi he Mg ʻi he fotunga ʻo e ukamea ʻoku fakavaʻe ʻaki e mg. ʻOku ʻiloa ʻa e founga ʻo MgH2 synthesis ko dissociative chemisorption. Ko ha founga angamaheni ke ngaohi ʻaki e ukamea ʻoku fakavaʻe ʻaki e hydride mei he Mg mo e H2, ko hono faʻu ia ʻo e mafana ʻo e 300 – 400 ° c mo ha malohi fakapaaki ʻo e ʻo e 2.4 – 40 MPa. ʻOku hoko ʻa hono faʻu oma pasikala ko ʻeni: Mg + H2 ⇌ MgH2
ʻOku hoko mai ʻa e faitoʻo vela maʻolunga ʻaki ha ngaahi nunuʻa maʻulalo ʻo e hydrides, hange ko e recrystallization, konga vahevahe, nanoparticles agglomeration mo e ala meʻa pehe. ʻIkai ngata ai, ʻoku hanga ʻe he mafana ʻa e ʻea mo e ngaahi faingataʻa ʻo ʻai ke mgH2 ʻa e ivi lahi, faingataʻa mo mamafa. Ko ha founga ʻe taha ʻoku ʻikai ke ʻi ai hano fakafuofuaʻi mo ha founga faingofua ange, ko e ultrasonically ʻoku ne poupouʻi hydrolysis ʻo magnesium hydride ʻi he mafana ʻo e loki mo takai e malohi.

Kole 'a e fakamatala




Fakatokanga'i ange 'etau Tu'utu'uni totonu fakatautaha.


Ultrasonic hydrolysis and MgH2 nano-structuring turn magnesium hydride into an efficacious technology for hydrogen storage

Ultrasonic homogenizer UIP16000hdt ki he synthesis lelei ʻo e magnesium lalahi hydride ki fakapaaki ʻo e storage

Ultrasonic Hydrolysis ʻo Magnesium Hydride

ʻOku ʻiloa ʻa e Ultrasonication ʻi heʻene malava ko ia ke kamata mo fakavaveʻi e ngaahi toʻonga kemikale, ke takiekina e ngaahi hala ʻo e kemikale mo fakaleleiʻi e lavameʻa fakalukufua ʻo ha tali. ʻOku ʻiloa ʻa e ngaahi ola lelei ʻo e tuʻo lahi, fakaʻata malohi ʻi he ngaahi toʻonga kemikale ko e sono-kemisitulii.
Kuo ʻosi fakaʻaongaʻi ʻa e malohi fakaʻata ki ha ngaahi toʻonga heterogeneous lahi, catalyses mo syntheses ʻi he R&T mo e tuʻunga ʻo e ngaahi meʻa fakapisinisi ke fakatupulaki ʻa e tukulolo, vave ʻo e ului mo e tali fakalukufua. Kuo ʻosi fakamoʻoniʻi ʻa e hydrolytic synthesis ʻo magnesium hydride, sonication ke ʻaonga ʻaupito.
ʻOku fakalakalaka ʻa e Sonication ʻi hono feʻaveʻaki ʻo e tali, pea tokoni ke ikunaʻi ʻa e thermodynamic mo kinetics ʻa e ʻa vahevahe. ʻOku fie maʻu ʻa e ivi thermal, hange ko e ʻea vela, ke ne teke ʻa e absorption/desorption hydrogenation founga ʻi magnesium. Ko hono fakaʻaongaʻi ʻo e ngaahi maʻuʻanga tokoni ʻoku ʻikai fakahangatonu hange ko e malohi fakaʻata ko ha fili lelei ia kae lava ke destabilize magnesium hydride.
Naʻe fakatotoloʻi ʻe he kulupu fekumi ʻo Hiroi et Al. (2011) ʻa e ola ʻo e ultrasonication ʻi he frequencies kehekehe ʻi he hydrolysis ʻo magnesium hydride (MgH2). Naʻa nau ʻilo ko e fakaʻata maʻulalo taha ʻa e founga lelei taha kae lava ke maʻu ha tuʻunga maʻolunga ʻo e ului. Naʻe aʻu e vave ʻo e hydrolysis ʻi he tuʻo siʻi sonication "ki he maʻolunga tatau mo e 76% ʻi he tuʻunga ʻo e tali ʻi he 7.2 ks ʻi ha ultrasonic tuʻo lahi ʻo e 28 kHz. Naʻe laka hake ʻi he tuʻo 15 ʻa e mahuʻinga ko ʻeni naʻe maʻu ʻi he sipinga naʻe ʻikai sonicated, ʻo fakahaaʻi ai ha meʻa tatau fakapaaki ʻo e density ʻo e 11.6% ʻi he fakavaʻe ʻo e mamafa ʻo mgH2. "
Naʻe fakaha mai ʻe he ngaahi ola ʻe hanga ʻe fakaʻata ʻo fakalahi ʻa e tali hydrolysis ʻo e MgH2 ʻaki hono fakatupulaki maʻu pe ʻa e tali koeʻuhi ko e toʻu tangata ʻo e fototehina mo exfoliating ʻa e mg (ʻOI) 2 ʻi he unreacted MgH2 koeʻuhi ko e toʻu tangata ʻo e ngaahi malohi lahi ʻo e mg. (Hiroi et Al. 2011)

Palopalema: fakatuaiʻi Hydrolysis ʻo Magnesium Hydride

Ko hono tuʻuaki ʻo e MgH2 hydrolysis ʻo fakafou ʻi he milling fuopotopoto, faitoʻo vai vela pe kemikale additives kuo fakatotoloʻi, ka naʻe ʻikai maʻu ia ke fakalahi ʻa e lahi ʻo e ului ʻa e kemikale ʻi ha founga mahuʻinga. Fekauʻaki mo hono tanaki atu ʻo e kemikale, additives kemikale, hange ko uesia kau fakafofonga, chelators, mo e ion kau no paʻanga, ʻa ia naʻe tokoni ke taʻofi hono faʻu ʻo ha passivating Mg (ʻOI) 2, ʻa ia naʻe faʻu ʻaki e ʻuli ʻi he founga ʻo e heka pasikala.

Founga fakaleleiʻi: ultrasonic fakamovetevete ʻo Magnesium Hydride

Ko e ultrasonic fakamovetevetea mo e milling viviku ko ha founga lelei ʻaupito ia ke maʻu ai ha ngaahi momoʻi meʻa nano mo ha Kilisitala ʻoku fuʻu fasiʻi. ʻI hono fakamovetevetea magnesium hydride ʻi he lahi nano, ʻoku toe fakalahi atu leva ʻa e feituʻu ʻoku malohi ai. ʻIkai ngata ai, ʻoku toʻo ʻe sonication ʻa e passivating pea fakalahi mo e feʻaveʻaki paʻanga ki he lahi ʻo e kemikale ʻoku maʻolunga ange hono fakaului. Ultrasonic milling, fakamovetevetea, deagglomeration mo e konga ki lalo ʻo e fakamaʻa ʻo e ngaahi founga milling kehe ʻi he lavameʻa, ala falalaʻanga mo faingofua.

The ultrasonicator UIP1000hdT is a powerful disperser for medium-sized production scale.

ultrasonicator UIP1000hdT ki he hokohoko atu ʻo e ngaue magnesium hydride

Kole 'a e fakamatala




Fakatokanga'i ange 'etau Tu'utu'uni totonu fakatautaha.


Ultrasonic milling and dispersing is a highly efficient method for particle size reduction, e.g. magnesium hydride

Ko e ultrasonic viviku-milling mo e fakamovetevetea ko ha founga lelei ʻaupito ia ki hono fakasiʻisiʻi e lahi ʻo e size, hange ko e magnesium hydride

Ultrasonic Nanostructuring ʻo MgH2

ʻE lava ke toe fakalahi atu ʻa e ngaahi fale Nano/nano-magnesium hange ko MgH2 nanoparticles mo nanofibres ʻaki hono fakasiʻisiʻi ʻa e kihiʻi konga siʻi mo e lahi ʻo e keleni, ʻo fakasiʻisiʻi ai ʻenau hydride hono faʻu ʻo e enthalpy ΔH. Ko ultrasonic nanostructuring ko ha founga lelei ʻaupito ia ʻoku ne fakaʻata ke liliu ʻa e ivi malohi ʻo magnesium hydride ʻo ʻikai uesia ai ʻa e ivi fakapaaki ʻo e. ʻOku fakahaaʻi ʻe he ultra lelei MgH2 nanoparticles ha meʻa mahuʻinga fakapaaki ʻo e desorption malava.

Ultrasonic poupouʻi Magnesium Hydride Synthesis

  • Tali 'a e toe vave ange
  • Tuʻunga maʻolunga ange ʻo e ului
  • Toʻo ʻo e passivating kuta
  • Ko e tali kakato ange
  • fakalahi hono fakamafola lahi fau 'o e fe'ave'aki pa'anga
  • 'Omi ma'olunga ange
  • Nanostructured MgH2
  • Fakaleleiʻi fakapaaki ʻo e sorption

Ultrasonicators ngaue maʻolunga maʻa e MgH2 Hydrolysis

Sonochemistry – hono fakaʻaongaʻi ʻo e malohi fakaʻata ki he ngaahi toʻonga kemikale – ko ha tekinolosia ngaue falalaʻanga, ʻa ia ʻoku ne fakafaingofuaʻi mo fakavaveʻi ange ʻa ʻa e syntheses, catalytic ngaahi toʻonga mo e ngaahi toʻonga hetergeneous kehe. ʻOku ʻufiʻufi ʻe Hielscher Ultrasonics lekooti ʻa e ngaahi meʻa kotoa mei he fale fakatotolo fakakemi ultrasonicators ki he ngaahi founga lalahi sonochemical ki he faʻahinga kemikale kotoa pe hange ko e hydrolysis ʻo magnesium hydride mo hono nano-milling/nano-structuring. ʻE lava heni ke mau ʻi Hielscher ke ʻoatu ʻa e ultrasonicator feʻunga taha ki hoʻo envisaged MgH2 synthesis. ʻE tokoniʻi koe ʻe heʻetau kau ngaue taimi loloa mei feasibility ngaahi sivi mo e founga ngaue optimisation ki hono fokotuʻu hoʻo polokalama ultrasonic ʻi he tuʻunga fakaʻosi.
ʻOku hanga ʻe he kiʻi paaki fute siʻisiʻi ʻo ʻetau ultrasonic homogenizers pea pehe ki heʻenau versatility ʻi he ngaahi fili ki hono fola, ʻo ʻai ke nau feʻunga ʻo aʻu ki he ngaahi fale ngaue siʻisiʻi. ʻOku fokotuʻu ʻa ultrasonic processors ʻi he funga ʻo e mamani ʻi he kemisitulii lelei, petro-kemisitulii, mo e ngaahi naunau ngaohiʻanga naunau nano.

Kulupu (batch) mo e Tuhituhi

ʻE lava ke fakaʻaongaʻi ʻa e sonochemical equipmment ʻa Hielscher ki he kulupu (batch) mo e hokohoko atu ʻo e ngaue. ʻOku feʻunga ʻa e kulupu (batch) ultrasonic ki hono siviʻi ʻo e founga ngaue, optimisation mo e siʻisiʻi ki he tuʻunga ʻo e ngaohiʻanga koloa. Ke maʻu ha ngaahi naunau lahi, ʻe lava ke ʻaonga kiate ange ʻa e ngaue ki he laine ʻo e laine. ʻOku fie maʻu ha fokotuʻutuʻu lelei ki hono tuifio ʻo e laine ʻoku tuifio ai – ʻa ia ʻoku kau ʻi ha pamu, housi pe paipa mo e tangike, ka ʻoku lelei ʻaupito, vave pea fie maʻu ke siʻisiʻi ange ʻene ngaue. ʻOku maʻu ʻe Hielscher Ultrasonics ʻa e fokotuʻutuʻu lelei taha sonochemical ki hoʻo tali sono-synthesis, ngaue ki he leʻolahi mo e ngaahi taumuʻa.

Ultrasonic Probes mo e niʻihi ʻoku nau mgH2 Hydrolysis ʻi ha faʻahinga meʻafua pe

UIP4000hdT fehufaki to'oto'o ki he sonication 'i he ngaue 'a e me'afuaʻOku ʻufiʻufi ʻe Hielscher Ultrasonics ʻa e tuʻunga kakato ʻo ultrasonic processors mei he loki fakatotolo fakakemi ultrasonicators ʻi he ngaahi founga ʻa e sea ki ʻolunga mo e pailate ki he ngaahi ultrasonic processors mo e malava ko ia ke ngaue fonu fonu loli ʻenau he houa. ʻOku fakaʻata kitautolu ʻe he koloa kakato ke tau ʻoatu ʻa e ultrasonic homogenizer feʻunga taha ki hoʻo founga ngaue mo e ngaahi taketi.
ʻOku feʻunga ʻa ultrasonic benchtop systems ki feasibility siviʻi mo e founga ngaue optimization. ʻOku hanga ʻe he meʻafua ʻo e telinga ʻo makatuʻunga ʻi he ngaahi fakangatangata kuo fokotuʻu ʻo ʻai ke faingofua ʻaupito hono fakatupulaki ʻo e ngaue mei he fanga kiʻi meʻa iiki ange ki he faiva fakakomesiale kakato. ʻE lava ke fai ʻa e Scaling ʻaki hano fola ha ʻiuniti ultrasonic malohi ange pe clustering ha ultrasonicators ʻoku faitatau mo ia. ʻI he UIP16000, ʻoku ʻomi ai ʻe Hielscher ʻa e ultrasonic malohi taha homogenizer fakaemamani lahi.

Ko hono mapuleʻi Amplitudes ki he ngaahi ola lelei

Ko e ultrasonicators Hielscher kotoa pe ʻoku mapuleʻingofua pea ʻoku ʻi ai ha fanga hoosi ngaue falalaʻanga. Ko e amplitude ko e taha ia ʻo e ngaahi fakangatangata mahuʻinga ʻoku ne takiekina ʻa e lavameʻa mo e ola lelei ʻo e ngaahi toʻonga sonochemical Hielscher's industrial processors of the hdT series can be comfortable and user-friendly operated via browser remote control. Hielscher ultrasonics kotoa pe’ processors fakaʻata ʻa e tuʻunga totonu ʻo e amplitude. Ko e Sonotrodes mo e meʻatui ʻoku ʻikai ke ʻi ai ha ngaahi naunau ia ʻoku ne fakaʻata ke liliu ʻa e amplitude ʻi ha ngaahi meʻa lahi ange. ʻE lava ʻe he ultrasonic processors ʻa Hielscher ʻo fakahaofi ha amplitudes maʻolunga ʻaupito pea ʻave ʻa e malohi ultrasonic ʻoku fie maʻu ki hono fakaʻaongaʻi. Amplitudes ʻo aʻu ki 200μm ʻe faingofua pe ke lele hokohoko ʻi he tafa 24/7.
ʻOku ʻoatu ʻe he ngaahi feituʻu amplitude totonu mo hono vakaiʻi maʻu pe ʻo e ngaahi fakangatangata ʻo e founga ngaue ultrasonic ʻo fakafou ʻi he polokalama smart Software ʻa e malava ko ia ke ke tokangaʻi hoʻo reagants ʻaki ʻa e ngaahi tuʻunga lelei taha ultrasonic. Tokolahi lelei sonication ki ha vave ʻo e ului ʻa e kemikale!
ʻOku fakaʻata ʻe he robustness ʻo e meʻangaue ultrasonic ʻa Hielscher ʻa e ngaue ʻe 24/7 ʻi he fatongia mamafa pea mo e ngaahi ʻatakai ʻoku femoʻuekina. ʻOku ngaohi ʻe he meʻa ni ʻa e meʻangaue ultrasonic ʻa Hielscher ko ha meʻangaue falalaʻanga ʻoku ne fulfils e ngaahi fie maʻu ki hoʻo kemikale.

ʻulungaanga maʻolunga taha – Faʻu mo Manufactured ʻi Siamane

'I he hoko ko ha pisinisi 'a e famili mo e fakalele fakafamili, 'oku Hielscher fakalelei ai 'a e ngaahi tu'unga mo'ui ma'olunga taha ki hono ultrasonic processors. Na'e fa'ufa'u 'a e ngaahi ultrasonicators kotoa, manufactured mo sivi'i kakato 'i he'etau FakasosialeFakataha kau ngaue 'i Teltow ofi ki Pealini 'i Siamane. 'Oku hoko 'a e Robustness mo e ala falala'anga 'o e me'angaue ultrasonic 'a Hielscher ko ha hoosi ngaue 'i he polokalama. 24/7 ko e ngaue kakato 'i he kavenga pea 'i he ngaahi 'atakai faingata'a, ko e 'ulungaanga fakanatula ia 'o e mixers 'oku fakahoko 'e he Hielscher.
Ultrasonics 'o e Hielscher’ ʻe lava ʻe he ultrasonic lalahi processors ʻo fakahaofi ha amplitudes maʻolunga ʻaupito. Amplitudes ʻo aʻu ki 200μm ʻe faingofua pe ke lele hokohoko ʻi he tafa 24/7. ʻOku lava ke maʻu ha amplitudes maʻolunga ange fakapatonu ultrasonic sonotrodes.

'Oku 'omi 'e he e tepile 'i lalo ha faka'ilonga ia 'o e tu'unga 'o e ngaue ki he fakafuofua'i 'o e hotau ultrasonicators:

Kulupu (batch) 'o e tohi 'Oku tafe mai 'a e 'ea 'Oku fokotu'u atu 'a e ngaahi me'angaue
mL 'o e 1 ki he 500 10 ki he 200mL/miniti 'e UP100H
mL 'i he 10 ki he 2000 20 ki he 400mL/miniti 'e UP200Ht, UP400St
0.1 ki he 20L 0.2 ke 4L/miniti 'e UIP2000hdT
10 ki he 100L 2 ki he 10L/miniti 'e UIP4000hdT
n.a. 10 ki he 100L/miniti 'e UIP16000
n.a. lalahi fakataha'i 'o e UIP16000

Fetu'utaki mai kiate kimautolu! / Kole kiate kitautolu!

Kole ki ha fakamatala lahi ange

Kataki 'o ngaue 'aki e foomu 'i lalo ke kole ha toe fakamatala ki he ultrasonic processors, faka'aonga'i mo e totongi. Te mau fiefia ke alea'i e founga 'oku mo 'i ai mo ho'omou ngaahi fie ma'u ultrasonic he polokalama!









Kataki 'o fakatokanga'i ange 'etau Tu'utu'uni totonu fakatautaha.


Ultrasonic high-shear homogenizers are used in lab, bench-top, pilot and industrial processing.

Hielscher Ultrasonics ʻa e ngaohiʻanga koloa maʻolunga ultrasonic homogenizers ki hono tuifio ʻo e ngaahi polokalama, fakamovetevetea, emulsification mo e toʻo hingoa ʻi he fale fakatotolo fakakemi, pailate mo e meʻafua ki he ngaahi meʻa fakapisinisi.

Ngaahi tohi/fakamo'oni fakafolofola



Ngaahi mo'oni'i me'a 'oku mahu'inga ke 'ilo'i

Ngaahi lelei ʻo Magnensium Hydride ki fakapaaki ʻo e storage

  • Lelei mo potupotutatau gravimetric
  • Ivi volumetric maʻolunga ange density
  • ʻIkai fakamole
  • ʻOku lava ke maʻu ʻaupito
  • Faingofua ke matuʻuaki (naʻa mo e ʻea)
  • ʻE lava ke fai ha tali fakahangatonu ki he vai
  • ʻE lava ke fakafeʻungaʻi ʻa e tali kinetics ki ha ngaahi polokalama pau
  • Tali maʻolunga mo e malu ʻo e koloa
  • ʻIkai kona mo malu ke fakaʻaongaʻi
  • Environmentally anga fakakaumeʻa

Ko e ha ʻa Magnesium Hydride?

Magnesium hydride (MgH2; ʻOku toe ʻiloa foki ia ko magnesium dihydride) ʻoku ʻi ai hono faʻunga tetragonal pea ʻoku ne fakaʻaliʻali mai ʻa e fotunga ʻo ha colourless Crystal pe efu hinehina. ʻOku fakaʻaongaʻi ia ko ha maʻuʻanga tokoni hdyrogen ki he puha penisini ʻi lalo 10, 000W. ʻOku maʻolunga ange ʻa e lahi ʻo e fakapaaki ʻo e ʻoku tukuange ʻe he vai ʻi he 14.8 uat%, ʻa ia ʻoku maʻolunga ange ia ʻi he lahi fakapaaki ʻo e ʻo e paʻanga ne tuku atu ʻi ha kasa maʻolunga fakapaaki ʻo e (70MPa, ~ 5.5 wt%) mo e ngaahi naunau tukuʻanga koloa fakapaaki ʻo e mamafa (<2wt%). Furthermore, magnesium hydride is safe and highly efficient, which turns it into a promising technology for efficacious hydrogen storage. Hydrolysis of magnesium hydride is used as supply hydrogen system in proton-exchange membrane fuel cells (PEMFC), which improve energy density of the system significantly. Solid / semi-solid Mg-H fuel battery systems with high-energy density are also in development. Their promising advantage is an energy density 3-5 times higher than that of lithium-ion batteries. Synonyms: Magnesium dihydride, magnesium hydride (hydrogen storage grade) Used as material for hydrogen storage Molecular Formula: MgH2 Molecular Weight:26.32 Density:1.45g/mL Melting Point:>250 °C
Solubility: insoluble ʻi he founga angamaheni


Hielscher Ultrasonics supplies high-performance ultrasonic homogenizers from lab to industrial size.

Ngaue ultrasonics maʻolunga! ʻOku ʻufiʻufi ʻe he koloa ʻa Hielscher ʻa e tuʻunga kakato mei he fale fakatotolo fakakemi ultrasonicator ʻi he ngaahi ʻiuniti ʻi ʻolunga ki he ngaahi polokalama ultrasonic lalahi.