【摘要】 采用溶胶-凝胶法合成了碱钨青铜（M_xWO₃,M=Cs,Rb中的1种或2种）粉体,探究了铯、铷分别单掺杂和铯、铷共掺杂对钨青铜粉体晶相、形貌的影响。利用X射线衍射仪（XRD）、X射线能谱仪（EDS）、扫描电子显微镜（SEM）、X射线光电子能谱仪（XPS）、紫外可见近红外光谱（UV-Vis-NIR）、隔热膜温度测试仪对所合成碱钨青铜粉体的物相、形貌、光学性能和隔热性能进行了表征。结果表明:溶胶-凝胶法所合成的碱钨青铜粉体结晶性较好、粒径较小;Cs、Rb共掺杂的透明绝热指数K=157.34比Rb单掺杂提高了23.92,改善了Cs单掺杂在1076 nm处透过率突变的情况;Cs、Rb共掺杂的温差（与起始温度相比）为4.9℃,比Rb单掺杂的温差下降了5.7℃。更多还原

【Abstract】 Powders of alkali tungsten bronze（M_xWO₃, M=Cs, Rb） were synthesized by sol-gel method. The effects of caesium doping, rubidium doping and caesium/rubidium co-doping on the crystal phase and morphology of tungsten bronze powders were investigated. The X-ray diffractometer（XRD）, X-ray energy spectrometer（EDS）, scanning electron microscope（SEM）, X-ray photoelectron spectroscopy（XPS）, UV-visible near-infrared spectroscopy（UV-Vis-NIR） and thermal film temperature tester were used to characterize the structure, morphology, optical properties and thermal insulation properties of the synthesized alkali tungsten bronze powders. The results show that the alkali-tungsten bronze powders synthesized by sol-gel method possess good crystallinity and small particle size. Moreover, the transparent adiabatic index（K=157.34） of Cs/Rb co-doped tungsten bronze powders is 23.92 higher than that of the Rb doped tungsten bronze powders. Additionally, the transmission rate mutation at 1076 nm of Cs doped tungsten bronze powders is improved by Cs/Rb co-doping. Finally, the temperature difference of Cs/Rb co-doped tungsten bronze powders is 4.9 ℃, lower than that of the Rb doped tungsten bronze powders（decreased by 5.7 ℃）.更多还原