The storage of H₂ is one of the critical issues to be resolved to expand H₂-based energy. Herein, MXene was employed in combination with GO for the first time for H₂ gas barrier coating on nylon 6 substrate (commonly used in storage tanks). A facile two-step method was acquired to covalently bond MXene and GO through 3-aminopropyl triethoxysilane (APTES) by employing carbodiimide reaction. The MXene-GO hybrid nanofiller (f-MXene-GO) exhibited a higher gallery gap between the nanosheets than that of the pristine MXene and GO. Besides, GO was also partially reduced by the amine functional groups of APTES. To the best of our knowledge, the stitching of MXene and GO using APTES has not yet been discussed in the literature. When f-MXene-GO was dispersed in poly (ethylene-co-acrylic acid) (EAA), a significant improvement in the mechanical properties was observed. An increase in the gallery gap between the MXene layers in f-MXene-GO/EAA nanocomposite as compared to MXene/EAA suggested the effectiveness of APTES grafting to enhance the interaction with EAA. MXene/EAA exhibited a higher H₂ gas barrier and mechanical properties than GO/EAA, whereas the adhesion of MXene/EAA to the nylon 6 substrate was weak. f-MXene-GO/EAA exhibited a judicious combination of both barrier and adhesion properties. The 10 wt% f-MXene-GO/EAA coated layer showed a very low H₂ permeability coefficient (0.03 cc.mm.m⁻².d⁻¹.atm⁻¹) and a significant 89% reduction in the H₂ gas transmission rate with respect to nylon 6.

H ₂的储存是扩展H ₂基能源需要解决的关键问题之一。在此，MXene 首次与 GO 结合用于尼龙 6 基材（通常用于储罐）上的H ₂气体阻隔涂层。通过采用碳二亚胺反应，获得了一种简便的两步法，通过 3-氨基丙基三乙氧基硅烷 (APTES) 共价键合 MXene 和 GO。与原始 MXene 和 GO 相比，MXene-GO 混合纳米填料 ( f -MXene-GO) 在纳米片之间表现出更高的画廊间隙。此外，GO也被APTES的胺官能团部分还原。据我们所知，文献中尚未讨论使用 APTES 拼接 MXene 和 GO。什么时候f -MXene-GO 分散在聚（乙烯-共聚-丙烯酸）（EAA）中，观察到机械性能的显着改善。与 MXene/EAA 相比，f -MXene-GO/EAA 纳米复合材料中MXene 层之间的通道间隙的增加表明 APTES 接枝对增强与 EAA 的相互作用的有效性。MXene/EAA 表现出比 GO/EAA更高的 H ₂气体阻隔性和机械性能，而 MXene/EAA 对尼龙 6 基材的附着力较弱。f -MXene-GO/EAA 表现出阻隔性和粘附性的明智组合。10 wt% f -MXene-GO/EAA 涂层显示出非常低的 H ₂渗透系数（0.03 cc.mm.m ^-2 .d^-1 .atm ^-1 ) 并且与尼龙 6 相比，H ₂气体传输率显着降低了 89% 。