Blue hydrogen produced from fossil fuels is recognized as a promising large‐scale technology for realizing the hydrogen economy. Membrane‐based separation is emerging as a viable alternative to traditional hydrogen purification technologies. Here, we present a facile strategy for fabricating carbon molecular sieve (CMS) hollow fiber membranes containing uniformly dispersed palladium (Pd) nanoparticles. The Pd nanoparticles, anchored in the carbon strands of CMS membranes, induced the carbon matrix toward a more ordered structure arrangement through a synergistic effect of entropy‐driven size exclusion and acceleration of graphitization. As a result, the doped Pd nanoparticles facilitated the formation of ultramicropores <3.3 Å in the CMS membranes, which enabled a precise molecular sieving ability between H2 and CO2 with H2/CO2 selectivity up to 247. Furthermore, the membrane presented good mixed gas separation performances and was stable for over 250 h under simulated harsh industrial conditions.

中文翻译：

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使用金属掺杂超微孔碳膜进行精确分子筛分以分离 H2

由化石燃料产生的蓝氢被认为是实现氢经济的有前途的大规模技术。基于膜的分离正在成为传统氢气纯化技术的可行替代方案。在这里，我们提出了一种简单的策略来制造含有均匀分散的钯（Pd）纳米颗粒的碳分子筛（CMS）中空纤维膜。锚定在 CMS 膜碳链中的 Pd 纳米粒子，通过熵驱动的尺寸排阻和加速石墨化的协同效应，诱导碳基质形成更有序的结构排列。结果，掺杂的 Pd 纳米颗粒促进了 CMS 膜中 <3.3 Å 超微孔的形成，从而实现了 H 之间的精确分子筛分能力。2和二氧化碳2与 H2/CO2选择性高达247。此外，该膜表现出良好的混合气体分离性能，在模拟恶劣工业条件下稳定超过250小时。