Aluminosilicate SSZ-39 zeolite shows the excellent catalytic performance in selective catalytic reduction of NO_x with NH₃ (NH₃-SCR) reaction, but their synthesis is still not efficient due to the use of a large amount of water as a solvent under hydrothermal condition. Herein, for the first time, we report a solvent-free synthesis of aluminosilicate SSZ-39 zeolite without addition of water in the presence of N,N-dimethyl-3,5-dimethylpiperidine (DMDMP) cation as an organic structure-directing agent. Various characterizations, including powder X-ray diffraction (XRD), scanning electron microscopy (SEM), thermogravimetry-differential thermal analysis (TG-DTA), N₂ sorption, inductively coupled plasma optical emission spectroscopy (ICP-OES) analysis, solid nuclear magnetic resonance (NMR) and NH₃-temperature-programmed desorption (NH₃-TPD), show that the aluminosilicate SSZ-39 zeolite displays high crystallinity, uniform sheet-like morphology, large surface area, four-coordinated aluminum species, strong acidic sites and excellent hydrothermal stability. Compared with the conventional synthesis for aluminosilicate SSZ-39 zeolite, the solvent-free synthesis of aluminosilicate SSZ-39 zeolite has the obvious advantages such as high product yield, simple synthesis procedures, and the reduction of pollutants. More importantly, the copper-exchanged aluminosilicate SSZ-39 zeolite shows the good catalytic performance in NH₃-SCR reaction, which is fully comparable with that of the Cu-SSZ-39 zeolite synthesized under hydrothermal condition from the reported literature.

硅铝酸盐SSZ-39沸石的节目在选择性催化还原NO的优异的催化性能_X与NH ₃（NH ₃ -SCR）反应，但它们的合成仍然是效率不高，由于使用大量的水作为水热下的溶剂健康）状况。在此，我们首次报道了在作为有机结构导向剂的N，N-二甲基-3,5-二甲基哌啶（DMDMP）阳离子存在下，无溶剂合成铝硅酸盐SSZ-39沸石而无需添加水的方法。各种表征，包括粉末X射线衍射（XRD），扫描电子显微镜（SEM），热重分析-差热分析（​​TG-DTA），N ₂吸附，电感耦合等离子体发射光谱（ICP-OES）分析，固体核磁共振（NMR）和NH _3-温度程序解吸（NH ₃ -TPD）表明，铝硅酸盐SSZ-39沸石具有高结晶度，均一性片状形态，大表面积，四配位的铝物种，强酸性位点和出色的水热稳定性。与常规合成硅铝酸盐SSZ-39沸石相比，无溶剂合成硅铝酸盐SSZ-39沸石具有明显的优点，如产物收率高，合成步骤简单，减少污染物。更重要的是，铜交换硅铝酸盐SSZ-39沸石在NH _3中显示出良好的催化性能。-SCR反应，与文献报道的在水热条件下合成的Cu-SSZ-39沸石完全可比。