We describe a novel approach to prepare cellular RANEY®-type catalysts by combining additive manufacturing (AM) of a Cu–Al alloy followed by selective leaching of Al with aqueous NaOH solutions. Three-dimensional cellular geometries of Cu–70Al were fabricated by laser-metal-deposition (LMD). After activation by an optimized leaching process, highly active and selective catalytic structures for CO hydrogenation to methanol were obtained.

中文翻译：

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增材制造的RANEY®型铜催化剂，用于甲醇合成

我们描述了一种通过结合Cu-Al合金的增材制造（AM），然后通过NaOH水溶液选择性浸出Al来制备蜂窝状RANEY®型催化剂的新方法。通过激光金属沉积（LMD）制作了Cu–70Al的三维蜂窝几何形状。通过优化的浸出工艺活化后，获得了高活性和选择性的催化结构，用于将CO加氢成甲醇。