采用立体光固化（Stereo Lithography Appearance，SLA）3D打印技术制备了直通道圆孔蜂窝、波纹通道方孔蜂窝与金字塔斜边框架拓扑3种不同结构的α-Al₂O₃支撑体。各项物理参数表明金字塔斜边框架拓扑结构的α-Al₂O₃支撑体以最小的质量（1.90 g）达到了最大的表面积（8 342 mm²），实现了催化剂的轻量化。通过浸渍法在3种支撑体表面负载硝酸镍并煅烧后得到NiAl₂O₄（镍铝尖晶石）结构催化剂。结果表明，在甲烷干重整反应（DRM）中，金字塔斜边框架拓扑NiAl₂O₄结构催化剂表现出最优的催化性能，在950℃时对CH₄、CO₂的转化率可达97.50%、99.07%。

α-Al₂O₃ supports with three different structures, including a straight-channel circular hole honeycomb, a corrugated channel square hole honeycomb, and a pyramid oblique frame topology, are prepared through using stereo lithography appearance (SLA) 3D printing technology.Various physical parameters indicate that the α-Al₂O₃ support with a pyramid oblique frame topology structure achieves the maximum surface area (8 342 mm²) with the minimum mass (1.90 g), realizing the lightweight of the catalyst.Nickel nitrate is loaded on the surface of these three supports via the impregnation method, and calcined to obtain NiAl₂O₄ (Ni-Al spinel) structural catalyst.It is found that in the dry reforming of methane (DRM), the topology NiAl₂O₄ catalyst exhibits the highest catalytic activity, over which the conversion rates of CH₄ and CO₂ achieve 97.50% and 99.07%, respectively at 950℃.

张光才(1996-),男,硕士生,研究方向为3D打印在能源化工中的应用,m17853309706@163.com