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多孔材料已经被广泛地应用于储氢研究。本文研究了Pd负载的高度交联聚苯乙烯(Pd-HCLPS)储氢材料的制备及储氢性能。在超声的辅助下,通过简便的置换反应成功制备了Pd-HCLPS。Pd颗粒以纳米尺度均匀分散在聚合物中。通过调节超声时间,制备了一系列不同Pd含量的Pd-HCLPS样品。发现Pd含量是影响氢溢流的一个重要因素。相比于HCLPS,Pd的负载使Pd-HCLPS样品的储氢量增强了1.1～1.7倍。在173K,3.1MPa下,最大储氢量为1.46wt%。
Porous materials have been widely used in hydrogen storage. In this paper, the preparation and hydrogen storage properties of Pd-loaded highly-crosslinked polystyrene (Pd-HCLPS) hydrogen storage materials were studied. With the aid of ultrasound, Pd-HCLPS was successfully prepared by simple displacement reaction. Pd particles are uniformly dispersed in the polymer on a nanometer scale. By adjusting the ultrasonic time, a series of Pd-HCLPS samples with different Pd contents were prepared. Pd content is found to be an important factor affecting hydrogen overflow. Compared with HCLPS, the Pd loading increased the hydrogen storage capacity of Pd-HCLPS by 1.1-1.7 times. At 173K, 3.1MPa, the maximum hydrogen storage capacity of 1.46wt%.