A strong solid/liquid interfacial interaction is found between porous alumina and graphene oxide (GO) aqueous dispersion, which promotes a fast enrichment of GO on the alumina surface and results in the formation of a GO hydrogel.

Strategy and Mechanism for Controlling Direction of Defect Evolution in Graphene: Preparation of High-Quality DefectHealed and Hierarchically Porous Graphene Kecheng Cao,a Yin Tian, a Yongzhi Zhang,b Xiaodan Yang, a Chiyao Bai, a Yue Luo, a Xiaosheng Zhao, a Lijian Ma, a,* and Shoujian Li a,* a College of Chemistry, Key Laboratory of Radiation Physics & Technology, and b Institute of New Energy...

A luminescent terbium ions/reduced graphene oxide complex (Tb-RGO) was successfully and rapidly synthesized by the microwave hydrothermal reaction via the interactions between terbium ions and the active oxygen functional groups of graphene oxide. The as-prepared material was porous stacked by multilayer graphene in all directions. Thus, the resulting product owed the high specific surface area...

A unique Pd nanoparticle loaded hierarchically porous graphene network was successfully prepared through multiple synergistic interactions. The obtained architectures as electrocatalysts exhibit significantly higher activity and durability for ethanol oxidation than commercial Pd/C catalysts.

We investigated theoretically the hydrogen permeability and selectivity of a porous silicene membrane via first-principles calculations. The subnanometer pores of the silicene membrane are designed as divacancy defects with octagonal and pentagonal rings (585-divacancy). The porous silicene exhibits high selectivity comparable with graphene-based membranes for hydrogen over various gas molecule...

In this study, a graphene-doped porous silicon (G-doped/p-Si) substrate for low ppm H₂ gas detection by an inexpensive synthesis route was proposed as a potential noble graphene-based gas sensor material, and to understand the sensing mechanism. The G-doped/p-Si gas sensor was synthesized by a simple capillary force-assisted solution dropping method on p-Si substrates, whose porosity was genera...

In this study, a graphene-doped porous silicon (G-doped/p-Si) substrate for low ppm H2 17 gas detection by an inexpensive synthesis route was proposed as a potential noble graphene-based 18 gas sensor material and to understand the sensing mechanism. The G-doped/p-Si gas sensor was 19 synthesized by a simple capillary force-assisted solution dropping method on p-Si substrates, 20 whose porosity...

Three-dimensional graphene (3DG) sponge has attracted increasing attention because it 10 combines the unique properties of cellular materials and the excellent performance of graphene. 11 The preparation of 3DG sponge depends mainly on the self-assembly of graphene oxide sheets. 12 Here, we demonstrate facile fabrication of 3DG sponge with a large-scale and ordered porous 13 structure, exploiti...

Hybrid carbon films composed of graphene film and porous carbon film may give full play to the advantages of both carbon materials, and have great potential for application in energy storage and conversion devices. Unfortunately, there are very few reports on fabrication of hybrid carbon films. Here we demonstrate a simple approach to fabricate free-standing sandwich-structured hybrid carbon fi...

Lithium metal is known to possess a very high theoretical capacity of 3,842 mAh g(-1) in lithium batteries. However, the use of metallic lithium leads to extensive dendritic growth that poses serious safety hazards. Hence, lithium metal has long been replaced by layered lithium metal oxide and phospho-olivine cathodes that offer safer performance over extended cycling, although significantly co...