Sreedhar Adem, Noh Jin-Seo
Department of Physics, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Gyeonggi-do, Seongnam-si 461-701, Republic of Korea.
Nanomaterials (Basel). 2025 Apr 28;15(9):673. doi: 10.3390/nano15090673.
The current world is increasingly focusing on renewable energy sources with strong emphasis on the economically viable use of renewable energy to reduce carbon emissions and safeguard human health. Solid-state hydrogen (H) storage materials offer a higher density compared to traditional gaseous and liquid storage methods. In this context, this review evaluates recent advancements in binary, ternary, and complex metal hydrides integrated with 2D TiC MXene for enhancing H storage performance. This perspective highlights the progress made in H storage through the development of active sites, created by interactions between multilayers, few-layers, and internal edge sites of TiC MXene with metal hydrides. Specifically, the selective incorporation of TiC MXene content has significantly contributed to improvements in the H storage performance of various metal hydrides. Key benefits include low operating temperatures and enhanced H storage capacity observed in TiC MXene/metal hydride composites. The versatility of titanium multiple valence states (Ti, Ti, Ti, and Ti) and Ti-C bonding in TiC plays a crucial role in optimizing the H absorption and desorption processes. Based on these promising developments, we emphasize the potential of solid-state TiC MXene interfaces with various metal hydrides for fuel cell applications. Overall, 2D TiC MXenes represent a significant advancement in realizing efficient H storage. Finally, we discuss the challenges and future directions for advancing 2D TiC MXenes toward commercial-scale H storage solutions.
当今世界越来越关注可再生能源，尤其强调以经济可行的方式利用可再生能源来减少碳排放并保障人类健康。与传统的气态和液态储存方法相比，固态氢（H）储存材料具有更高的密度。在此背景下，本综述评估了与二维TiC MXene结合的二元、三元和复合金属氢化物在提高储氢性能方面的最新进展。这一观点强调了通过TiC MXene的多层、少层与内部边缘位点与金属氢化物之间的相互作用所产生的活性位点的开发，在储氢方面取得的进展。具体而言，TiC MXene含量的选择性掺入对各种金属氢化物的储氢性能提升做出了显著贡献。主要优点包括在TiC MXene/金属氢化物复合材料中观察到的低操作温度和增强的储氢容量。钛的多种价态（Ti²⁺、Ti³⁺、Ti⁴⁺和Ti⁰）以及TiC中Ti-C键的多功能性在优化氢吸收和解吸过程中起着关键作用。基于这些有前景的进展，我们强调固态TiC MXene与各种金属氢化物的界面在燃料电池应用中的潜力。总体而言，二维TiC MXene在实现高效储氢方面代表了一项重大进展。最后，我们讨论了将二维TiC MXene推进到商业规模储氢解决方案所面临的挑战和未来方向。
