燃料化学学报（中英文）2023，Vol.51Issue(5)：665-672,8.DOI:10.1016/S1872-5813(23)60342-1
球磨介质对铜铝尖晶石缓释催化甲醇水蒸气重整制氢的影响
Effects of ball milling medium on Cu-Al spinel sustained release catalyst for H2 generation from methanol steam reforming
摘要
Abstract
Using pseudo-boehmite and ultrafine copper hydroxide as the raw materials with n(Cu/Al) = 1:3, the effects of ball milling medium on the Cu-Al spinel sustained release catalysts prepared via the solid-state reaction method are explored. The obtained catalysts are characterized by XRD, BET, and H2-TPR techniques, and their catalytic properties in methanol steam reforming (MSR) are evaluated. The results demonstrate that Cu-Al spinel solid solution can be synthesized by both dry and wet mechanical ball milling methods, and more Cu2 + ions are found to be incorporated into the spinel lattice through the latter method. The crystalline sizes of as-synthesized spinels are similar; however, the specific surface areas and pore volumes are different as well as their reduction properties. Compared with the dry milling method, the wet ball milling method can facilitate the solid phase reaction, generating catalysts with solely spinel crystalline phase, higher specific surface area, and larger pore volume. Furthermore, catalysts derived from the wet milling method demonstrate improved catalytic activity and stability, and lower CO selectivity in MSR. The highest activity is obtained over CuHAl-Ac-950 prepared using ethanol (95％) as the ball milling medium.关键词
铜铝尖晶石/缓释催化剂/甲醇水蒸气重整/球磨介质Key words
Cu-Al spinel/sustained release catalyst/methanol steam reforming/ball milling medium分类
化学化工引用本文复制引用
刘雅杰,覃发玠,侯晓宁,高志贤..球磨介质对铜铝尖晶石缓释催化甲醇水蒸气重整制氢的影响[J].燃料化学学报（中英文）,2023,51(5):665-672,8.基金项目
The project was supported by the National Natural Science Foundation of China(21673270,22202093)and the Natural Science Foundation for Young Scientists of Shanxi Province of China(20210302123358,20210302124338). （21673270,22202093）
