固體氧化物燃料電池CuCoNi-SDC陽極的制備及表征.pdf

1、內(nèi)蒙古科技大學(xué)碩士學(xué)位論文固體氧化物燃料電池CuCoNi/SDC陽極的制備及表征姓名：張軍申請學(xué)位級別：碩士專業(yè)：材料學(xué)指導(dǎo)教師：安勝利20070430內(nèi)蒙古科技大學(xué)碩士學(xué)位論文 內(nèi)蒙古科技大學(xué)碩士學(xué)位論文 - 4 - Synthesis and Characterization of CuCoNi/SDC Anodes for SOFC Abstract The solid oxide fuel cell (SOFC) is a ki

2、nd of the whole energy transfer device of solid state operated at high temperature. Because it have many advantages of high efficiency and good environment, which is considered to be one of the key techniques in resolvin

3、g the energy problems in the 21 century. High operating temperature and carbon deposition in anode are two main problems which hampering the development of SOFC. Therefore, it is necessary to develop anode materials that

4、 should have high ion-electronic conductivity at low and intermediate temperatures, which can reduce or avoid the carbon deposition in anode. The SDC electrolyte and CuxCo0.5-xNi0.5O1.75-0.5x powder are prepared by the s

5、ol-gel low temperature burning synthesize technique. The SDC electrolyte powder and CuxCo0.5-xNi0.5O1.75-0.5x powder were molded by dry molding method. The structure, phase composition of the anod and electrolyte materia

6、ls were characterized through XRD，SEM. The conductivity of anode material and SDC electrolyte was measured by using direct current method and AC impedance technology. The experiment results showed that the gel decomposed

7、 at a lower temperature; CuxCo0.5-xNi0.5O1.75-0.5x powder prepared from different proportion of copper, cobalt and nickel oxide became a cubic structure solid solution at 1100℃; The structure of SDC electrolyte powder ca

8、lcined at 650℃ for 2h was cubic; The conductivity of SDC electrolyte is increase with the temperature; And the conductivity of anode is decrease with the temperature. Key Words：solid oxide fuel cell, CuCoNi/SDC, anode, c