Farr Nicholas T H, Davies Matthew, Nohl James, Abrams Kerry J, Schäfer Jan, Lai Yufeng, Gerling Torsten, Stehling Nicola, Mehta Danielle, Zhang Jingqiong, Mihaylova Lyudmila, Willmott Jon R, Black Kate, Rodenburg Cornelia
Department of Materials Science and Engineering, Sir Robert Hadfield Building, Mappin Street University of Sheffield, Sheffield, S1 3JD, UK.
Insigneo Institute for In Silico Medicine, The Pam Liversidge Building, Sheffield, S1 3JD, UK.
Adv Sci (Weinh). 2024 Mar;11(10):e2306561. doi: 10.1002/advs.202306561. Epub 2023 Dec 25.
Palladium films hold signicance due to their remarkable affinity for hydrogen diffusion, rendering them valauble for the seperation and purification of hydrogen in membrane reactors. However, palladium is expensive, and its films can become brittle after only a few cycles of hydrogen separation. Alloying with silver has been shown to overcome the problem of palladium embrittlement. Palladium-silver films have been produced via several methods but all have drawbacks, such as difficulties controlling the alloy composition. This study explores two promising jet printing methods: Inkjet and Aerosoljet. Both methods offer potential advantages such as direct patterning, which reduces waste, enables thin film production, and allows for the control of alloy composition. For the first time, palladium-silver alloys have been produced via inkjet printing using a palladium-silver metal organic decomposition (MOD) ink, which alloys at a temperature of 300 °C with nitrogen. Similarly, this study also demonstrates a pioneering approach for Aerosol Jet printing, showing the potential of a novel room-temperature method, for the deposition of palladium-silver MOD inks. This low temperature approach is considered an important development as palladium-silver MOD inks are originally designed for deposition on heated substrates.
钯膜因其对氢扩散具有显著亲和力而具有重要意义，使其在膜反应器中用于氢气的分离和纯化方面具有价值。然而，钯价格昂贵，并且其薄膜在仅经过几个氢分离循环后就会变脆。已证明与银合金化可克服钯脆化问题。钯银薄膜已通过多种方法制备，但都存在缺点，例如难以控制合金成分。本研究探索了两种有前景的喷射印刷方法：喷墨印刷和气溶胶喷射印刷。这两种方法都具有潜在优势，如直接图案化，可减少浪费、实现薄膜生产并能控制合金成分。首次通过使用钯银金属有机分解（MOD）油墨的喷墨印刷制备了钯银合金，该油墨在300°C与氮气作用下合金化。同样，本研究还展示了一种气溶胶喷射印刷的开创性方法，显示了一种新型室温方法用于沉积钯银MOD油墨的潜力。这种低温方法被认为是一项重要进展，因为钯银MOD油墨最初设计用于在加热的基板上沉积。
