ORCID Profile
0000-0002-8757-364X
Current Organisations
Hanoi University of Mining and Geology
,
University of Bath
,
University of Bristol
,
University of Bristol Faculty of Engineering
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Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D2YA00242F
Abstract: Nanocomposites of sulfur encapsulated in single-walled carbon nanotubes show increased hydrogen density in pores through enhanced electrostatic potential.
Publisher: MDPI AG
Date: 31-12-2019
Abstract: In this report, we explore the use of supercritical CO2 (scCO2) in the synthesis of well-known metal-organic frameworks (MOFs) including Zn-MOF-74 and UiO-66, as well as on the preparation of [Cu24(OH-mBDC)24]n metal-organic polyhedra (MOPs) and two new MOF structures {[Zn2(L1)(DPE)]∙4H2O}n and {[Zn3(L1)3(4,4′-azopy)]∙7.5H2O}n, where BTC = benzene-1,3,5-tricarboxylate, BDC = benzene-1,4-dicarboxylate, L1 = 4-carboxy-phenylene-methyleneamino-4-benzoate, DPE = 1,2-di(4-pyridyl)ethylene, 4.4′-azopy = 4,4′- azopyridine, and compare the results versus traditional solvothermal preparations at low temperatures (i.e., 40 °C). The objective of the work was to see if the same or different products would result from the scCO2 route versus the solvothermal method. We were interested to see which method produced the highest yield, the cleanest product and what types of morphology resulted. While there was no evidence of additional meso- or macroporosity in these MOFs/MOPs nor any significant improvements in product yields through the addition of scCO2 to these systems, it was shown that the use of scCO2 can have an effect on crystallinity, crystal size and morphology.
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D0FD90033H
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1FD00010A
Abstract: The heterojunction between a metal–organic framework and graphitic carbon nitride can form a novel porous structure which reduces the rate of electron–hole recombination, thus improving the photocatalytic performance of the composite for wastewater treatment.
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D2NA00333C
Abstract: The synthesis of porous high-temperature superconductors has been achieved for the first time using melamine formaldehyde as a sacrificial template.
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D0CE01259A
Abstract: The differences in valence and size between extra-framework cations exert a significant effect on the nitrogen sorption ability in the synthesised chabazite zeolites (K-CHA, Cs-CHA, Ca-CHA, Ba-CHA, Sr-CHA and Zn-CHA).
Publisher: Springer Science and Business Media LLC
Date: 26-07-2019
DOI: 10.1038/S41598-019-47314-1
Abstract: Introducing hierarchical pore structure to microporous materials such as metal-organic frameworks (MOFs) can be beneficial for reactions where the rate of reaction is limited by low rates of diffusion or high pressure drop. This advantageous pore structure can be obtained by defect formation, mostly via post-synthetic acid etching, which has been studied extensively on water-stable MOFs. Here we show that a water-unstable HKUST-1 MOF can also be modified in a corresponding manner by using phosphoric acid as a size-selective etching agent and a mixture of dimethyl sulfoxide and methanol as a dilute solvent. Interestingly, we demonstrate that the etching process which is time- and acidity- dependent, can result in formation of defective HKUST-1 with extra interconnected hexagonal macropores without compromising on the bulk crystallinity. These findings suggest an intelligent scalable synthetic method for formation of hierarchical porosity in MOFs that are prone to hydrolysis, for improved molecular accessibility and diffusion for catalysis.
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7FD90044A
Publisher: Elsevier BV
Date: 04-2018
Publisher: American Chemical Society (ACS)
Date: 21-08-2017
Location: United Kingdom of Great Britain and Northern Ireland
Location: United Kingdom of Great Britain and Northern Ireland
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for Huan Doan.