http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Jazdzewska (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
-
Photoelectrochemical activity of Cu2O electrochemically deposited at different temperatures
Karolina Syrek,Magdalena Jazdzewska,Marcin Kozieł,Leszek Zaraska 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.115 No.-
Cuprous oxide (Cu2O) is considered one of the most promising candidates for photocathodes in photoelectrochemicalsystems due to its favorable properties including p-type conductivity and narrow bandgap. Therefore, Cu2O thin films were electrochemically deposited on FTO-coated glass from the bath containing0.2 M CuSO4 and 3 M lactic acid (pH=12) at the potential of 0.5 V vs SCE for 1 h at three differenttemperatures (20 C, 40 C, and 60 C). The obtained materials were characterized using various techniquesincluding SEM/EDS, XRD, UV–vis DRS, and EIS measurements. It was found that rising the electrodepositiontemperature causes not only an increase in the oxide growth rate but also influences thecrystallite orientation preference (the higher preferred orientation of the h111i plane was observed athigher temperatures). Photoelectrochemical measurements confirmed the superior performance of theFTO/Cu2O cathode synthesized at the highest studied temperature (60 C), most likely due to the greaterthickness of the deposit as well as higher material texture. On the contrary, the optical and electrochemicalband gaps were found to be independent of the temperature applied during deposition. Finally, thepossibility of using such kind of electrochemically synthesized FTO/Cu2O photocathodes for solar lightinducedammonia synthesis was also demonstrated.
-
Corrosion behavior of concrete produced with diatomite and zeolite exposed to chlorides
Husnu Gerengi,Yilmaz Kocak,Agata Jazdzewska,Mine Kurtay 사단법인 한국계산역학회 2017 Computers and Concrete, An International Journal Vol.19 No.2
Chloride induced reinforcement corrosion is widely accepted to be the most frequent mechanism causing premature degradation of reinforced concrete structures. The electrochemical impedance of reinforcing steel in diatomite- and zeolite-containing concrete exposed to sodium chloride was assessed. Chemical, physical and mineralogical properties of three concrete samples (20% diatomite, 20% zeolite, and a reference containing neither) were correlated with corrosion investigations. The steel-reinforced samples were exposed to 3.5% NaCl solution for 500 days, and measured every 15 days via EIS method. Results indicated that porosity and capillary spaces increase the diffusion rate of water and electrolytes throughout the concrete, making it more susceptible to cracking. Reinforcement in the reference concrete was the most corroded compare to the zeolite and the diatomite samples.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
