I-Hielscher Ultrasound Technology

I-Sono-Electrochemistry kanye Nezinzuzo zayo

Lapha uzothola konke odinga ukukwazi mayelana ne-ultrasonic electrochemistry (sonoelectrochemistry): ukusebenza isimiso, izinhlelo zokusebenza, izinzuzo nemishini ye-sono-electrochemical – lonke ulwazi olufanele mayelana ne-sonoelectrochemistry ekhasini elilodwa.

Kungani Usebenzisa i-Ultrasonics ku-Electrochemistry?

Inhlanganisela yamaza asezingeni eliphansi, amandla aphezulu e-ultrasound anezinhlelo ze-electrochemical eza nezinzuzo eziningi, ezithuthukisa ukusebenza kahle kanye nezinga lokuguqulwa kokuphendula kwe-electrochemical.

Isimiso Esisebenzayo se-Ultrasonics

Ukusebenza okuphezulu kwe-ultrasonic processing, high-intensity, low-frequency ultrasound kwenziwa nge-ultrasound generator futhi kudluliswa nge-ultrasonic probe (sonotrode) ibe uketshezi. I-high-power ultrasound ibhekwa njenge-ultrasound ebangeni le-16-30kHz. Uphenyo lwe-ultrasound luyanwebeka nezinkontileka isib., Ku-20kHz, ngaleyo ndlela kudluliswe ukudlidliza okungama-20,000 ngomzuzwana kulowo ophakathi. Lapho amagagasi e-ultrasonic edabula kuketshezi, kushintshana ingcindezi ephezulu (ukuminyanisa) / ingcindezi ephansi (i-rarefaction noma ukunwetshwa) imijikelezo idala ama-bubbles omzuzu noma izimbotshana, ezikhula ngaphezu kwemijikelezo eminingi yengcindezi. Ngesikhathi sesigaba sokucindezelwa ketshezi namabhamuza, ingcindezi iba muhle, kanti isigaba se-rarefaction sikhiqiza i-vacuum (ingcindezi engemihle). Ngesikhathi semijikelezo yokwanda kokuminyanisa, izimbotshana ezikulolu ketshezi ziyakhula zize zifinyelele usayizi, lapho zingakwazi khona ukuthola amandla amaningi. Ngalesi sikhathi, bahamba ngamandla. Ukufakwa kwalezi zimbobo kuholela emiphumeleni ehlukahlukene enamandla, eyaziwa ngokuthi yinto ye-acoustic / ultrasonic cavitation. I-acoustic cavitation ibonakala ngemiphumela eminingi enamandla kakhulu, ethinta uketshezi, izinhlelo eziqinile / eziwuketshezi kanye nezinhlelo zegesi / uketshezi. Indawo yamandla aminyene noma indawo yokubamba iqhaza yaziwa njengendawo ebizwa ngokuthi indawo eshisayo, enamandla kakhulu endaweni eseduze ne-probe ye-ultrasonic futhi yehla ngamabanga akhulayo ukusuka ku-sonotrode. Izici eziyinhloko ze-cavitation ye-ultrasonic zifaka phakathi amazinga okushisa aphakeme kakhulu nezingcindezi kanye nokwehluka okuhlukile, iziphithiphithi nokusakazwa ketshezi. Ngesikhathi sokufakwa kwezikhala ze-ultrasonic ezindaweni ezishisayo ze-ultrasonic, amazinga okushisa afinyelela ku-5000 Kelvin, izingcindezi ezingafika kuma-200 atmospheres namajets wamanzi anama-1000km / h angalinganiswa. Lezi zimo ezivelele ezinamandla amakhulu zifaka isandla kumiphumela ye-sonomechanical ne-sonochemical eqinisa amasistimu kagesi ngezindlela ezahlukahlukene.

Ultrasonic electrodes for sonoelectrochemical applications such as nanoparticle synthesis (electrosynthesis), hydrogen synthesis, electrocoagulation, wastewater treatment, breaking emulsions, electroplating / electrodeposition

Ama-probe wamaprosesa we-ultrasonic I-UIP2000hdT (2000 watts, 20kHz) yenza njenge-cathode ne-anode esitokisini se-electrolytic

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Imiphumela ye-Ultrasonic ekusetshenzisweni kwe-Electrochemical

  • Kwandisa ukudluliswa okukhulu
  • Ukuguguleka / ukusakazeka kokuqina (ama-electrolyte)
  • Ukuphazanyiswa kwemingcele eqinile / ewuketshezi
  • Imijikelezo ephezulu yengcindezi

Imiphumela ye-Ultrasonics ku-Electrochemical Systems

Ukusetshenziswa kwe-ultrasonication ekusebenzeni kwe-electrochemical kuyaziwa ngemiphumela ehlukahlukene kuma-electrode, okusho i-anode ne-cathode, kanye nesisombululo se-electrolytic. I-Ultrasonic cavitation nokusakazwa kwe-acoustic kukhiqiza ukunyakaza okuncane okubalulekile, okufaka ama-jets oketshezi nokuyaluza kuketshezi lokuphendula. Lokhu kuholela ekuthuthukisweni kwe-hydrodynamics nokuhamba kwengxube ketshezi / eqinile. I-Ultrasonic cavitation inciphisa ubukhulu obusebenzayo besendlalelo sokusabalalisa ku-electrode. Isendlalelo sokusabalalisa esincishisiwe sisho ukuthi i-sonication inciphisa umehluko wokuhlushwa, okusho ukuhlangana kokuhlushwa endaweni eseduze ne-electrode futhi inani lokuhlushwa kusisombululo esiningi likhuthazwa nge-ultrasonically. Ithonya lokuyaluza kwe-ultrasonic kuma-gradients okuhlushwa ngesikhathi sokuphendula liqinisekisa ukondliwa unomphela kwesixazululo esisha ku-electrode nokukhishwa kwempahla esetshenzisiwe. Lokhu kusho ukuthi i-sonication ithuthukise inani eliphelele le-kinetics elisheshayo lokuphendula nokwandisa isivuno sokuphendula.
Ngokwethulwa kwamandla e-ultrasonic ohlelweni kanye nokwakheka kwe-sonochemical kwama-radicals wamahhala, ukusabela kwe-electrochemical, obekungeke kube yi-electroinactive, kungaqalwa. Omunye umphumela obalulekile wokudlidliza kwe-acoustic nokusakaza ngumphumela wokuhlanza ezindaweni ze-electrode. Izendlalelo ezidlulayo nokungcolisa kuma-electrode kukhawulela ukusebenza kahle kanye nesilinganiso sokuphendula kokuphendula kwe-electrochemical. I-Ultrasonication igcina ama-electrode ahlanzekile unomphela futhi asebenza ngokuphelele ekuphenduleni. I-Ultrasonication yaziwa kakhulu ngemiphumela yayo ye-degassing, elusizo ekuphenduleni kwe-electrochemical, nayo. Ukususa amagesi angafuneki kuketshezi, ukusabela kungasebenza ngempumelelo enkulu.

Izinzuzo ze-Ultrasonically Promoted Electrochemistry

  • Ukwandisa isivuno se-electrochemical
  • SpeedEnhanced electrochemical reaction reaction
  • Ukusebenza kahle okuthuthukisiwe
  • Izinciphisi zokusabalalisa ezincishisiwe
  • Kuthuthukiswe ukudluliswa kwesisindo ku-electrode
  • Ukusebenza komhlaba ku-electrode
  • Ukususwa kwezendlalelo ezidlulayo nokukhohliswa
  • EntialUkunciphisa amathuba amaningi we-electrode 􏰭
  • Ukunciphisa isixazululo ngendlela efanele
  • Ikhwalithi ephezulu ye-electroplating
Ultrasonic electrodes improve the efficiency, yield and conversion rate of electrochemical processes.

Uphenyo lwe-ultrasonic lusebenza njenge-electrode. Amagagasi e-ultrasound akhuthaza ukusabela kwe-electrochemical okuholela ekusebenzeni okuthuthukile, isivuno esiphakeme kanye namazinga wokuguqula ngokushesha.
Lapho i-sonication ihlanganiswa ne-electrochemistry, lokhu kuyi-sono-electrochemistry.

Izicelo zeSonoelectrochemistry

I-Sonoelectrochemistry ingasetshenziswa kuzinqubo ezahlukahlukene nasezimbonini ezahlukahlukene. Izicelo ezivame kakhulu ze-sonoelectrochemistry zifaka okulandelayo:

  • Ukuhlanganiswa kweNanoparticle (electrosynthesis)
  • Ukuhlanganiswa kwe-Hydrogen
  • Electrocoagulation
  • Ukwelashwa kwamanzi angcolile
  • Ukuqhekeza imulsions
  • Electroplating / Electrodeposition

I-Sono-Electrochemical Synthesis yamaNanoparticles

I-Ultrasonication iphumelele ukusetshenziswa ukuhlanganisa ama-nanoparticles ahlukahlukene ohlelweni lwe-electrochemical. Magnetite, cadmium-selenium (CdSe) nanotubes, platinum nanoparticles (NPs), gold NPs, metallic magnesium, bismuthene, nano-silver, ultra-fine copper, tungsten-cobalt (W-Co) alloy nanoparticles, samaria / ukunciphisa graphene oxide nanocomposite , i-sub-1nm poly (i-acrylic acid) ene-nanoparticles yethusi ehlanganiswe nezinye izimpushana ezilingana nano zikhiqizwe ngosizi kusetshenziswa i-sonoelectrochemistry.
Izinzuzo ze-sonoelectrochemical nanoparticle synthesis zifaka phakathi

  • ukugwema okwehlisa amanxusa kanye nama-surfactants
  • ukusetshenziswa kwamanzi njenge-solvent
  • ukulungiswa kosayizi we-nanoparticle ngamapharamitha ahlukahlukene (amandla e-ultrasonic, amandla wamanje, amandla okubekwa kanye nezikhathi ze-ultrasonic vs electrochemical pulse times)

U-Ashasssi-Sorkhabi noBagheri (2014) bahlanganise amafilimu e-polypyrrole sonoelectrochemically futhi baqhathanisa imiphumela namafilimu we-polypyrrole ahlanganiswe ngogesi. Imiphumela ikhombisa ukuthi i-galvanostatic sonoelectrodeposition ikhiqize ifilimu ye-polypyrrole (PPy) enamathela ngokuqinile futhi ebushelelezi, enesisindo samanje se-4 mA cm-2 ku-0.1 M oxalic acid / 0.1 M pyrrole solution. Kusetshenziswa i-sonoelectrochemical polymerization, bathole ukumelana okuphezulu namafilimu anzima e-PPy anendawo ebushelelezi. Kukhonjisiwe ukuthi ukumbozwa kwe-PPy okulungiselelwe yi-sonoelectrochemistry kunikela ngokuvikela okukhulu kokugqwala kwensimbi ye-St-12. Ukumbozwa okwenziwe kahle bekufana futhi kukhombisa ukumelana nokugqwala okuphezulu. Yonke le miphumela ingabangelwa ukuthi i-ultrasound ithuthukise ukudluliswa okukhulu kwama-reactants futhi yabangela amazinga aphezulu okusabela kwamakhemikhali nge-acoustic cavitation kanye namazinga aphezulu okushisa nezingcindezi. Ukuba semthethweni kwedatha ye-impedance yensimbi ye-St-12 / imidwebo emibili ye-PPy / isikhombimsebenzisi semidiya esonakalisayo kuhlolwe kusetshenziswa ukuguqulwa kwe-KK, futhi kwabonwa amaphutha aphakathi nendawo.

UHass noGedanken (2008) babike ngempumelelo eyi-sono-electrochemical synthesis of metallic magnesium nanoparticles. Ukusebenza kahle kwenqubo ye-sonoelectrochemical ye-Gringard reagent ku-tetrahydrofuran (THF) noma kusixazululo se-dibutyldiglyme kwakungu-41.35% no-33.08%, ngokulandelana. Ukungeza i-AlCl3 kusisombululo se-Gringard kukhulise ukusebenza kahle okukhulu, kwenyusa kwaba ngu-82.70% no-51.69% ku-THF noma ku-dibutyldiglyme, ngokulandelana.

Ukukhiqizwa kweSono-Electrochemical Hydrogen

I-electrolysis ekhuthazwa nge-Ultrasonically inyusa kakhulu isivuno se-hydrogen kusuka emanzini noma kuzixazululo ze-alkaline. Chofoza lapha ukuze ufunde kabanzi mayelana ne-ultrasonically accelerated electrolytic hydrogen synthesis!

I-Electrocoagulation Esizwe Nge-Ultrasonically

The application of low-frequency ultrasound to electrocoagulcation systems is known as sono-electrocoagulation. Studies show that sonication influences electrocoagulation positively resulting e.g., in higher removal efficiency of iron hydroxides from wastewater. The positive impact of ultrasonics on electrocoagulation is explained by the reduction of electrode passivation. Low-frequency, high-intensity ultrasound destructs deposited solid layer and removes them efficiently, thereby keeping the electrodes continuously fully active. Furthermore, ultrasonics activates both ion types, i.e. cations and anions, present in the electrodes reaction zone. Ultrasonic agitation results in high micro-movement of the solution feeding and carrying away raw material and product to and from the electrodes.
Izibonelo zezinqubo ze-sono-electrocoagulation eziphumelelayo ukwehliswa kwe-Cr (VI) kuya ku-Cr (III) emanzini angcolile, ukususwa kwe-phosphorus ephelele emikhakheni ye-fine chemical industry nge-phosphorus ukususa kahle kwaba yi-99.5% kungakapheli i-10 min., ukususwa kombala nokususwa kwe-COD kokungcola kopulazi nomkhakha wephepha njll. Kubikwe ukusebenza kahle kombala, i-COD, i-Cr (VI), i-Cu (II) ne-P kwakungu-100%, 95%, 100%, 97.3%, no-99.84% , ngokulandelana. (bheka i-Al-Qodah & I-Al-Shannag, 2018)

Ukwehliswa kweSono-Electrochemical kokungcola

I-Ultrasonically ikhuthaza i-electrochemical oxidation kanye / noma ukusabela kokunciphisa kusetshenziswa njengendlela enamandla yokwehlisa ukungcola kwamakhemikhali. Izindlela ze-Sonomechanical ne-sonochemical zikhuthaza ukonakaliswa kwe-electrochemical kokungcola. I-cavitation ekhiqizwe nge-Ultrasonically ibangela ukuyaluza okukhulu, ukuxubana okuncane, ukudluliswa kobuningi nokususwa kwezendlalelo ezihamba phambili kuma-electrode. Le miphumela ye-cavitational iholela kakhulu ekuthuthukisweni kokudluliswa kobuningi obuqinile phakathi kohlobo lwama-electrode nesisombululo. Imiphumela ye-Sonochemical ithinta ngqo ama-molecule. Ukuqhekeka kwe-homolytic kwama-molecule kudala ama-oxidants asebenza kakhulu. Kuma-aqueous media naphambi komoya-mpilo, kwenziwa imishanguzo efana no-HO •, HO2 • no-O •. • Ama-radicals e-OH ayaziwa ukuthi abalulekile ekonakaleni kahle kwezinto eziphilayo. Sekukonke, ukonakala kwe-sono-electrochemical kukhombisa ukusebenza kahle okuphezulu futhi kufanelekile ukwelashwa imiqulu emikhulu yemifudlana yamanzi angcolile nolunye uketshezi olungcolisiwe.
Isibonelo, uLllanos et al. (2016) kutholakale ukuthi umphumela obalulekile wokusebenzisana utholwe ukutholakala kwegciwane emanzini lapho uhlelo lwe-electrochemical luqiniswa yi-sonication (i-sono-electrochemical disinfection). Lokhu kwanda kwezinga lokubulala amagciwane kutholakale ukuthi kuhlobene nokucindezelwa kwama-coli cell aggolomerates kanye nokukhiqizwa okuthuthukisiwe kwezinhlobo ze-disinfectant. U-Esclapez et al. (2010) ikhombise ukuthi i-reactor sonoelectrochemical reactor (nokho ayenziwanga kahle) isetshenzisiwe ngesikhathi kukalwa ukonakala kwe-trichloroacetic acid (TCAA), ukutholakala kwenkundla ye-ultrasound eyenziwe nge-UIP1000hd kunikeze imiphumela engcono 26%, ukukhetha 0.92 nokusebenza kahle kwamanje 8%) ngamandla aphansi e-ultrasonic nasekugelezeni kwevolumetric. Ngokubheka iqiniso, ukuthi i-pre-pilot sonoelectrochemical reactor ibingakenziwa ngcono, kungenzeka ukuthi le miphumela ingathuthukiswa kakhulu.

I-Ultrasonic Voltammetry ne-Electrodeposition

I-Electrodeposition yenziwa nge-galvanostatic ngobuningi bamanje be-15 mA / cm2. Izixazululo zifakwe ku-ultrasonication ngaphambi kwe-electrodeposition imizuzu engu-5-60. I-Hielscher I-UP200S probe-type ultrasonicator yasetshenziswa ngesikhathi sokujikeleza esingu-0.5. I-Ultrasonication itholwe ngokufaka ngqo iphenyo ye-ultrasound kusixazululo. Ukuhlola umthelela we-ultrasonic kusixazululo ngaphambi kwe-electrodeposition, i-cyclic voltammetry (i-CV) isetshenziselwe ukuveza isimilo ngokuziphatha futhi yenza kube nokwenzeka ukubikezela izimo ezifanele zokufakwa kwe-electrodeposition. Kuyabonakala ukuthi lapho isixazululo sikhonjelwa ku-ultrasonication ngaphambi kokubekwa kwe-electrodeposition, ukuthunyelwa kuqala ngamanani amancane angaba namandla. Lokhu kusho ukuthi njengamanje kusisombululo asidingi amandla amancane, njengoba izinhlobo ezisesixazululweni ziziphatha zisebenza kakhulu kunezingezona ezenziwa ngama-ultrasonicated. (isib. Yurdal & I-Karahan 2017)

I-Ultrasonic UIP2000hdT (2000 watts, 20kHz) njenge-Cathode kanye / noma i-Anode eTank

I-Ultrasonic UIP2000hdT (2000 watts, 20kHz) njenge-Cathode kanye / noma i-Anode eTank

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Ama-High-Performance Electrochemical Probes nama-SonoElectroReactors

I-Hielscher Ultrasonics ingumlingani wakho wesikhathi eside onolwazi wezinhlelo ze-ultrasonic ezisebenza kakhulu. Sakha futhi sisabalalisa ama-probe e-state-of-the-art ultrasonic kanye nama-reactors, asetshenziselwa umhlaba wonke ekusetshenzisweni komsebenzi onzima ezindaweni ezifuna kakhulu. Nge-sonoelectrochemistry, i-Hielscher ithuthukise ama-probe akhethekile e-ultrasonic, angenza njenge-cathode kanye / noma i-anode, kanye namaseli we-reactor e-ultrasonic afanele ukusabela kwe-electrochemical. Ama-electrode e-Ultrasonic namaseli ayatholakala kuma-galvanic / voltaic kanye nezinhlelo ze-electrolytic.

Ama-Amplitudes Alawulekayo Kahle Emiphumela Engcono

Hielscher's industrial processors of the hdT series can be comfortable and user-friendly operated via browser remote control.Onke ama-processor we-Hielscher ultrasonic alawulwa kahle futhi ngaleyo ndlela anokwethenjelwa amahhashi omsebenzi ku-R&D nokukhiqizwa. I-amplitude ingenye yezinqubo ezibalulekile zenqubo ezithonya ukusebenza kahle nokusebenza kwe-sonochemically ne-sonomechanically reaction. Zonke Hielscher Ultrasonics’ amaprosesa avumela ukumiswa okuqondile kwe-amplitude. Amaprosesa aseHielscher ezimboni ze-ultrasonic angaletha ama-amplitudes aphakeme kakhulu futhi ahambise ukuqina kwe-ultrasonic okudingekayo kokufuna i-sono-electrochamical applications. Amplitudes afika ku-200µm angaqhutshwa ngokuqhubekayo ngokuqhubekayo ekusebenzeni okungama-24/7.
Amasethingi we-amplitude aqondile nokuqapha unomphela kwamapharamitha wenqubo ye-ultrasonic nge-smart software kukunikeza ithuba lokuthonya ukusabela kwe-sonoelectrochemical ngokunembile. Ngesikhathi ngasinye sokusebenza kwe-sonication, wonke amapharamitha we-ultrasonic arekhodwa ngokuzenzekelayo ekhadini le-SD elakhelwe ngaphakathi, ukuze ukugijima ngakunye kuhlolwe futhi kulawulwe. I-sonication efanelekile yokuphendula okuhle kakhulu kwe-sonoelectrochemical!
Yonke imishini yakhelwe ukusetshenziswa kwe-24/7/365 ngaphansi komthwalo ogcwele futhi ukuqina nokuthembeka kwayo kuyenza ihhashi lomsebenzi enqubeni yakho ye-electrochemical. Lokhu kwenza imishini ye-ultrasonic ye-Hielscher ithuluzi lomsebenzi elinokwethenjelwa eligcwalisa izidingo zakho zenqubo ye-sonoelectrochemical.

Ikhwalithi ephezulu kakhulu – Yakhelwe Yakheka EJalimane

Njengebhizinisi eliphethwe ngumndeni neliphethwe ngumndeni, i-Hielscher ibeka phambili amazinga aphezulu ekhwalithi yamaprosesa ayo e-ultrasonic. Onke ama-ultrasonicators aklanyelwe, akhiqizwa futhi ahlolwa kahle ekomkhulu lethu lasekhaya eTeltow ngaseBerlin, eJalimane. Ukuqina nokuthembeka kwemishini ye-ultrasonic ye-Hielscher kuyenza ihhashi lomsebenzi ekukhiqizeni kwakho. Ukusebenza okungu-24/7 ngaphansi kokulayishwa okugcwele futhi ezindaweni ezifunayo kuyisici semvelo samaprosesa aphezulu we-ultrasonic nama-reactors.

Xhumana nathi manje futhi usitshele ngezidingo zakho zenqubo ye-electrochemical! Sizokuncoma ama-electrode e-ultrasonic afaneleka kakhulu kanye nokusethwa kwesikhungo

Xhumana nathi! / Cela Us!

Cela ulwazi oluthe xaxa

Uyacelwa ukuthi usebenzise ifomu elingezansi ukucela ulwazi olungeziwe mayelana nezinhlelo zokusebenza ze-ultrasonic, izinhlelo zokusebenza nentengo. Sizokujabulela ukuxoxa ngenqubo yakho nawe futhi sikunikeze uhlelo lwe-ultrasonic oluhlangabezana nezidingo zakho!









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

I-Hielscher Ultrasonics ikhiqiza ama-homogenizers asebenza ngokusebenza okuphezulu wokuxuba izinhlelo, ukusabalalisa, ukumisa nokukhipha ilebhu, umshayeli kanye nesikali sezimboni.

Izincwadi / Izikhombo