CAJ | 학술논문

以钨粉、硫粉为原料，以K2 HPO4为矿化剂，在500℃的密闭条件下，利用固相法合成了WS2纳米微粒；采用X射线衍射仪、扫描电子显微镜等表征了产物的结构，分析了矿化剂对WS2尺寸和形貌的影响。结果表明，当反应体系中存在适量的K2 HPO4时，合成的WS2晶体呈饼干状，厚度约50 nm ，且结晶性良好。研究发现，在高温条件下，WS2晶粒在熔融K2 HPO4中的形成和生长受到抑制，从而有利于其形貌和尺寸的控制。
이오분、류분위원료，이K2 HPO4위광화제，재500℃적밀폐조건하，이용고상법합성료WS2납미미립；채용X사선연사의、소묘전자현미경등표정료산물적결구，분석료광화제대WS2척촌화형모적영향。결과표명，당반응체계중존재괄량적K2 HPO4시，합성적WS2정체정병간상，후도약50 nm ，차결정성량호。연구발현，재고온조건하，WS2정립재용융K2 HPO4중적형성화생장수도억제，종이유리우기형모화척촌적공제。
WS2 nanoparticles were synthesized at 500 ℃ via an airtight solid-phase route in the presence of W powder and S powder as the raw materials and K2 HPO4 as the mineralizer .The structure of as-synthesized product was characterized by means of X-ray diffraction and scan-ning electron microscopy ,and the effect of the mineralizer on the size and morphology of WS 2 was investigated .It was found that the WS2 crystal obtained in the presence of an appropriate amount of K2 HPO4 is cookie-like shaped and has a thickness of 50 nm and good crystallinity as well .It was also found that ,under elevated temperature ,the formation and growth of WS2 grains in molten K2 HPO4 is hindered thereby favoring the control of their morphology and size .