Brakat Abdelrahman, Zhu Hongwei
State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China.
Nanomaterials (Basel). 2023 Aug 23;13(17):2399. doi: 10.3390/nano13172399.
In the pursuit of advanced functional materials, the role of low-dimensional van der Waals (vdW) heterointerfaces has recently ignited noteworthy scientific interest, particularly in assemblies that incorporate quasi-2D graphene and quasi-1D nanocellulose derivatives. The growing interest predominantly stems from the potential to fabricate distinct genres of quasi-2D/1D nanoarchitecture governed by vdW forces. Despite the possibilities, the inherent properties of these nanoscale entities are limited by in-plane covalent bonding and the existence of dangling π-bonds, constraints that inhibit emergent behavior at heterointerfaces. An innovative response to these limitations proposes a mechanism that binds multilayered quasi-2D nanosheets with quasi-1D nanochains, capitalizing on out-of-plane non-covalent interactions. The approach facilitates the generation of dangling bond-free iso-surfaces and promotes the functionalization of multilayered materials with exceptional properties. However, a gap still persists in understanding transition and alignment mechanisms in disordered multilayered structures, despite the extensive exploration of monolayer and asymmetric bilayer arrangements. In this perspective, we comprehensively review the sophisticated aspects of multidimensional vdW heterointerfaces composed of quasi-2D/1D graphene and nanocellulose derivatives. Further, we discuss the profound impacts of anisotropy nature and geometric configurations, including in-plane and out-of-plane dynamics on multiscale vdW heterointerfaces. Ultimately, we shed light on the emerging prospects and challenges linked to constructing advanced functional materials in the burgeoning domain of quasi-3D nanoarchitecture.
在追求先进功能材料的过程中,低维范德华(vdW)异质界面的作用最近引发了显著的科学兴趣,特别是在包含准二维石墨烯和准一维纳米纤维素衍生物的组装体中。这种兴趣的不断增长主要源于制造由范德华力控制的不同类型准二维/一维纳米结构的潜力。尽管有这些可能性,但这些纳米级实体的固有特性受到面内共价键和悬空π键的限制,这些限制抑制了异质界面处的新兴行为。针对这些限制的一种创新应对方法提出了一种利用面外非共价相互作用将多层准二维纳米片与准一维纳米链结合的机制。该方法有助于生成无悬空键的等表面,并促进具有特殊性能的多层材料的功能化。然而,尽管对单层和不对称双层排列进行了广泛探索,但在理解无序多层结构中的转变和排列机制方面仍然存在差距。从这个角度出发,我们全面回顾了由准二维/一维石墨烯和纳米纤维素衍生物组成的多维范德华异质界面的复杂方面。此外,我们讨论了各向异性性质和几何构型的深远影响,包括面内和面外动力学对多尺度范德华异质界面的影响。最终,我们阐明了在新兴的准三维纳米结构领域构建先进功能材料所面临的新前景和挑战。