Showing papers by "FengChao Wang published in 2023"
TL;DR: In this paper , a pyro-layering approach was used to fabricate heterostructured membranes from boron nitride nanosheets as the main scaffold and graphene from a chitosan precursor as the filler.
Abstract: Abstract Engineering different two-dimensional materials into heterostructured membranes with unique physiochemical properties and molecular sieving channels offers an effective way to design membranes for fast and selective gas molecule transport. Here we develop a simple and versatile pyro-layering approach to fabricate heterostructured membranes from boron nitride nanosheets as the main scaffold and graphene nanosheets derived from a chitosan precursor as the filler. The rearrangement of the graphene nanosheets adjoining the boron nitride nanosheets during the pyro-layering treatment forms precise in-plane slit-like nanochannels and a plane-to-plane spacing of ~3.0 Å, thereby endowing specific gas transport pathways for selective hydrogen transport. The heterostructured membrane shows a high H 2 permeability of 849 Barrer, with a H 2 /CO 2 selectivity of 290. This facile and scalable technique holds great promise for the fabrication of heterostructures as next-generation membranes for enhancing the efficiency of gas separation and purification processes.
1 citations
TL;DR: In this paper , the distribution of olefinic-bond-containing aromatic hydrocarbon (OAH) and the effect of OAH on coke formation during heavy oil thermal cracking have been studied.
TL;DR: In this paper , a theoretical model was proposed to quantitatively describe the link between the pinning force on the contact line and the molecular asymmetry in the local distribution of liquid atoms.
TL;DR: In this paper , the SARA fractions at 250-400 °C were studied to gain an insight into the coke induction process and the interactions among fractions for thermal coking were discussed.
TL;DR: In this article , the authors comprehensively analyzed the interaction and destruction of various hydrated ion bridges (HIB) and water bridges (WB) and found that ions can increase the oil-rock interaction strength.