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논문 기본정보
X-ray photoelectron spectroscopic and electrochemical impedance spectroscopic analysis of RuO2-Ta2O5 thick film pH sensors
논문 개요
| 기관명 | NDSL |
|---|---|
| 저널명 | Analytica chimica acta : an international journal devoted to all branches of analytical chemistry |
| ISSN | 0003-2670,1873-4324 |
| ISBN |
논문저자 및 소속기관 정보
| 저자(한글) | Manjakkal, L.,Cvejin, K.,Kulawik, J.,Zaraska, K.,Socha, R.P.,Szwagierczak, D. |
|---|---|
| 저자(영문) | |
| 소속기관 | |
| 소속기관(영문) | |
| 출판인 | |
| 간행물 번호 | |
| 발행연도 | 2016-01-01 |
| 초록 | The paper reports on investigation of the pH sensing mechanism of thick film RuO 2 -Ta 2 O 5 sensors by using X-ray photoelectron spectroscopy (XPS) and electrochemical impedance spectroscopy (EIS). Interdigitated conductimetric pH sensors were screen printed on alumina substrates. The microstructure and elemental composition of the films were examined by scanning electron microscopy and energy dispersive spectroscopy. The XPS studies revealed the presence of Ru ions at different oxidation states and the surface hydroxylation of the sensing layer increasing with increasing pH. The EIS analysis carried out in the frequency range 10 Hz-2 MHz showed that the electrical parameters of the sensitive electrodes in the low frequency range were distinctly dependent on pH. The charge transfer and ionic exchange occurring at metal oxide-solution interface were indicated as processes responsible for the sensing mechanism of thick film RuO 2 -Ta 2 O 5 pH sensors. |
| 원문URL | http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=03553784&target=NART&cn=NART75724920 |
| 첨부파일 |
추가정보
| 과학기술표준분류 | |
|---|---|
| ICT 기술분류 | |
| DDC 분류 | |
| 주제어 (키워드) | Conductimetric pH sensor,Screen printing,Ion sensitive electrode,RuO lt,SUB gt,2 lt,/SUB gt,-Ta lt,SUB gt,2 lt,/SUB gt,O lt,SUB gt,5 lt,/SUB gt,. X-ray photoelectron spectroscopy,Impedance spectroscopy |