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| 1 | 铝掺杂氧化锌陶瓷的冷烧结制备及性能研究显示文摘采用两步冷烧结工艺(TS-CSP)在300℃超低温度下制备了高密度的铝掺杂氧化锌(AZO)陶瓷。采用XRD、密度测试仪、SEM、四探针测试系统等对AZO陶瓷的物相、相对密度、微观结构和电学性能进行了测试及表征。结果表明,Al掺杂量对AZO陶瓷的结构与性能有重要影响。当Al_(2)O_(3)掺杂量为2.0 wt.%时,可制备出无杂相、结构致密、电学性能良好的AZO陶瓷,经退火处理后其相对密度高达99.46%,电阻率低至3.43×10^(-3)Ω·cm。该方法制备的AZO陶瓷具有重要的应用前景。 | 傅维宁 江旭鹏 尹荣 龙神峰 韦婷婷 蓝峥 王琦 关英文 徐华蕊 张秀云 张坚 朱归胜 | 2023 | 陶瓷学报2023，44，2： | 0 |
| 2 | A Modified Co-precipitation Method to Prepare Cu/ZnO/Al2O3 Catalyst and Its Application in Low Temperature Water-gas Shift(LT-WGS)Reaction显示文摘A modified co-precipitation method for the production of Cu/ZnO/Al_2O_3 complex was studied. The modification was that part of Al was introduced by adding Al^(3+) into Cu^(2+)/Zn^(2+) solution, and the rest of Al was added after co-precipitation step in the form of pseudo-boehmite. The prepared samples were characterized by different techniques such as X-ray diffraction, N_2 adsorption, H_2-N_2O titration, temperature programmed reduction and scanning electron microscopy. X-ray diffraction characterizations revealed that Al^(3+) can be doped in aurichalcite lattice, and the maximum doping amount of Al^(3+) was 5.0% of total Cu and Zn atoms. The Cu/ZnO/Al_2O_3 sample produced by the modified method, in which co-precipitated Al^(3+) was 2.5% of total Cu and Zn atoms showed much better activity and stability in water-gas shift reaction than commercial sample. The high Cu surface area(26.1 m^2/g) obtained by decompositon of doped aurichalcite is believed to be responsible for the activity enhancement. The stability was enhanced mainly because of the support effect of γ-Al_2O_3, which was decomposed from pseudo-boehmite in the calcination step. | 许龙龙 PENG Dong LIU Wenhui FENG Yimin HOU Yanan LI Xiongjian 黄驰 | 2018 | Journal of Wuhan University of Technology(Materials Science)2018，33，4： | 0 |
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