In a high-vacuum-multilayer insulation structure (HVMLIS), H₂ is released into the vacuum jacket by manufactured materials, resulting in the deterioration of the insulation vacuum. Palladium oxide (PdO), which is expensive, is typically used as an H₂ getter in HVMLIS. However, PdO generates sparks by vigorously reacting with H₂, which are a potential threat to HVMLIS. Therefore, in this work, silver-exchanged zeolite is optimised to obtain an inexpensive and safe Ag–Z getter and a silver molecular sieve (SMS) together with a low-temperature active material getter (AMG). Moreover, an experimental platform was designed to test the H₂ sorption properties of the three getters and compare them with traditional PdO. The experiment revealed that the cumulative sorption capacities of PdO, Ag–Z, SMS and AMG were 184.8, 63.1, 124.9 and 5.28 mL/g, respectively. However, the costs of SMS, Ag–Z and AMG were only ~7.37%, 5.08% and 6.13% of the cost of PdO, respectively, indicating that SMS is a promising alternative to PdO, which is expensive. Simultaneously, the microstructure of the H₂ getters was analysed via X-ray powder diffraction. Further, PdH_0.706 and Pd₂H_1.5 were obtained in addition to Pd, after H₂ was absorbed by PdO. Ag⁺ was reduced to Ag in SMS, and Cu₈O was produced by the reaction of CuO in AMG. These findings provide a basis for the subsequent optimisation of the H₂ getters.

在高真空多层绝缘结构（HVMLIS）中，H ₂被制造材料释放到真空夹套中，导致绝缘真空恶化。氧化钯 (PdO) 价格昂贵，通常用作HVMLIS 中的 H ₂吸气剂。然而，PdO 通过与 H ₂剧烈反应产生火花，这是对 HVMLIS 的潜在威胁。因此，在这项工作中，优化银交换沸石以获得廉价且安全的 Ag-Z 吸气剂和银分子筛 (SMS) 以及低温活性材料吸气剂 (AMG)。此外，还设计了一个实验平台来测试 H ₂三种吸气剂的吸附特性，并将它们与传统的 PdO 进行比较。实验表明，PdO、Ag-Z、SMS 和 AMG 的累积吸附容量分别为 184.8、63.1、124.9 和 5.28 mL/g。然而，SMS、Ag-Z 和 AMG 的成本分别仅为 PdO 成本的 7.37%、5.08% 和 6.13%，表明 SMS 是 PdO 的有前途的替代品，而 PdO 价格昂贵。同时，通过X射线粉末衍射分析了H ₂吸气剂的微观结构。此外，在PdO吸收H ₂之后，除了Pd之外还获得PdH _0.706和Pd ₂ H _1.5。在 SMS 中Ag ⁺被还原为 Ag，Cu ₈O是由CuO在AMG中反应产生的。这些发现为H ₂吸气剂的后续优化提供了基础。