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簡(jian)要描述(shu):高(gao)(gao)電壓電化學(xue)工(gong)作站(zhan)200VPGU-200V和PGU-400 V高(gao)(gao)電壓電化學(xue)工(gong)作站(zhan)的(de)電流范(fan)圍高(gao)(gao)達±2A,同時采用了GND電阻器和帶工(gong)作感應的(de)參比電極引(yin)線,可以實現1μA到2A(8檔位(wei))的(de)電流切換(huan)。
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PGU-100 V、PGU-200 V和PGU-400 V是IPS愛譜斯(si)的(de)高(gao)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)電(dian)(dian)(dian)(dian)化學(xue)(xue)工(gong)(gong)作(zuo)(zuo)站(zhan)(zhan)系(xi)列。對(dui)于一些特殊的(de)客(ke)戶應用(例如(ru),納米管和陽極(ji)氧化、有機體系(xi)的(de)電(dian)(dian)(dian)(dian)合成、混凝(ning)土體系(xi)的(de)腐蝕測試等),都需要(yao)高(gao)于±10V的(de)高(gao)槽壓(ya)(ya)(ya)(ya)(ya)和高(gao)極(ji)化電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)的(de)電(dian)(dian)(dian)(dian)化學(xue)(xue)工(gong)(gong)作(zuo)(zuo)站(zhan)(zhan)。為此(ci),IPS愛譜斯(si)設(she)計(ji)開發了PGU-100 V高(gao)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)電(dian)(dian)(dian)(dian)化學(xue)(xue)工(gong)(gong)作(zuo)(zuo)站(zhan)(zhan)(±120V槽壓(ya)(ya)(ya)(ya)(ya)、±100V極(ji)化電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)、±2A電(dian)(dian)(dian)(dian)流(liu))、PGU-200 V高(gao)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)電(dian)(dian)(dian)(dian)化學(xue)(xue)工(gong)(gong)作(zuo)(zuo)站(zhan)(zhan)(±220V槽壓(ya)(ya)(ya)(ya)(ya)、±200V極(ji)化電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)、±2A電(dian)(dian)(dian)(dian)流(liu))和PGU-400 V高(gao)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)電(dian)(dian)(dian)(dian)化學(xue)(xue)工(gong)(gong)作(zuo)(zuo)站(zhan)(zhan)(±410V槽壓(ya)(ya)(ya)(ya)(ya)、±400V極(ji)化電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)、±2A電(dian)(dian)(dian)(dian)流(liu))。如(ru)果(guo)需要(yao)更高(gao)的(de)電(dian)(dian)(dian)(dian)流(liu),請(qing)聯系(xi)我們IPS愛譜斯(si)。
高電壓電化學工作站200V高電壓電化學工作站的主要應用:
1. 對金屬板(例如(ru)鋁(lv))進(jin)行陽極(ji)氧化
此功能通常要求(qiu)設備提供更高(gao)的(de)電壓和更高(gao)的(de)電流(liu)。通常,我們的(de) PGU-可(ke)提供 200 V@2A,也可以定制為 200 V@4A。將(jiang)程序設置為從 OCP 開始(shi)到約 100V 的斜率施加電壓,然后在長(chang)達 30 分鐘的時間內施加恒定值(斜坡結束)。 在該保持時間(jian)內形(xing)成陽極氧(yang)化層(ceng)。 陽(yang)極氧(yang)化工(gong)藝的典型過程(cheng)(cheng)(cheng)是重復,在重復過程(cheng)(cheng)(cheng)中(zhong),電(dian)流通常(chang)比第(di)一次低(di)得多(duo), 表明該(gai)過程(cheng)(cheng)(cheng)已正(zheng)常(chang)進行(xing)。
2. 高電壓電化學工作站200V 制備(bei)納米管
該過(guo)程類似于陽(yang)極氧化過(guo)程,但是納米管制(zhi)備僅需(xu)要處理一次。
3. 交流阻抗(kang) EIS
如果將(jiang)高壓設備(bei)用于 EIS,典型的應用(yong)是 AC 交流腐(fu)蝕研究。 客戶應(ying)該知道(dao),高壓設備的(de) EIS 功能與普(pu)通電化(hua)學工(gong)作站的 EIS 測量無法并行比較。 在高壓設(she)備上,交流幅(fu)度必須更高,幾毫伏的振幅(fu)(±10mV)幾乎是高壓設(she)備(bei)的基(ji)本(ben)噪(zao)聲。 因此(ci),使(shi)用高壓設(she)備(bei) EIS 的典型值為±100mV,如果測量對樣品破(po)壞不大,至少還(huan)應該再高。如果考慮 AC 交流腐(fu)蝕,振幅可以設為±100V。 但是客戶應該(gai)知道,功率越大(da),速(su)度(du)越低。 在(zai)
±100V 時,我們只能達到幾(ji)百 Hz 得頻率(最大約 300Hz);在(zai)較(jiao)低(di)的振幅下,我們可(ke)以(yi)實現約 20 kHz 的 EIS 測試。
高壓設備配有兩個正弦波發生器。為了研究 AC 交流電腐蝕,客戶可以在一個通道上施加特定頻率的 AC 交流擾動(例如 50Hz,或 60Hz 或 16.666Hz 或其它需求頻率)。在另一個通道上,客戶可以使用固定頻率測試,也可以使用從 20 kHz 到 0.001Hz 的區域測試。自帶的 EcmWin 軟件可以分離不同頻率(要求第一通道和第二通道的頻率要不一(yi)樣,甚至最好(hao)不要接近)。因(yin)此高(gao)壓設(she)備可以像普通電化學工作站一樣進行 EIS 測試。
除了自動(dong)模(mo)式(shi)外,還可(ke)以使(shi)用(yong)手動(dong)模(mo)式(shi)。因此,客戶可(ke)以在一個通道(dao)上施加(jia)恒(heng)定頻(pin)(pin)率(lv),而在另一通道(dao)上檢測第(di)二(er)頻(pin)(pin)率(lv)。通過不同頻(pin)(pin)率(lv)去(qu)檢測什么(me)時(shi)候(hou)發生反應。
PGU-200 V和PGU-400 V高電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)電(dian)(dian)(dian)(dian)(dian)(dian)化學(xue)工作(zuo)站(zhan)既可以手動控制也可以通過(guo)EcvWin軟(ruan)件控制。同時高電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)電(dian)(dian)(dian)(dian)(dian)(dian)化學(xue)工作(zuo)站(zhan)都會配(pei)備(bei)一(yi)個(ge)安全(quan)箱(xiang),它不僅(jin)是一(yi)個(ge)法拉第(di)屏(ping)蔽箱(xiang),也是一(yi)個(ge)安全(quan)箱(xiang)。測試正(zheng)在運行時,如果箱(xiang)門(men)被打開(kai),它會觸(chu)發自帶的保護(hu)電(dian)(dian)(dian)(dian)(dian)(dian)路,以斷(duan)開(kai)對電(dian)(dian)(dian)(dian)(dian)(dian)極回路,禁(jin)止輸出電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)。此外當實(shi)際(ji)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)超過(guo)所(suo)選(xuan)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)檔位的15%時,此安全(quan)箱(xiang)也會自動斷(duan)開(kai)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya),形(xing)成保護(hu)。
高(gao)電(dian)壓(ya)電(dian)化(hua)學工(gong)(gong)作(zuo)(zuo)站工(gong)(gong)作(zuo)(zuo)站PGU-200V和PGU-400 V高(gao)電(dian)壓(ya)電(dian)化(hua)學工(gong)(gong)作(zuo)(zuo)站的(de)電(dian)流范圍高(gao)達±2A,同時采用了(le)GND電(dian)阻器和帶工(gong)(gong)作(zuo)(zuo)感應的(de)參比電(dian)極引線,可以實現1μA到2A(8檔位(wei))的(de)電(dian)流切(qie)換。此外PGU-200V和PGU-400 V高(gao)電(dian)壓(ya)電(dian)化(hua)學工(gong)(gong)作(zuo)(zuo)站還配置了(le)兩個(ge)內(nei)(nei)置的(de)電(dian)位(wei)計和兩個(ge)BNC連接器,用于(yu)設置內(nei)(nei)部和/或(huo)外部電(dian)源的(de)電(dian)位(wei),此模式(shi)特別適合于(yu)手動操作(zuo)(zuo)。
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