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Hongjun Niu

Researcher at University of Liverpool

Publications -  52
Citations -  4627

Hongjun Niu is an academic researcher from University of Liverpool. The author has contributed to research in topics: Perovskite (structure) & Oxide. The author has an hindex of 21, co-authored 49 publications receiving 4047 citations. Previous affiliations of Hongjun Niu include Durham University.

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Conjugated Microporous Poly(aryleneethynylene) Networks

TL;DR: Rigid wiry nets: Conjugated microporous polymer networks are formed by Sonogashira–Hagihara coupling, and the micropore size and surface area can be controlled by varying the length of the phenyleneethynylene struts.
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Synthetic Control of the Pore Dimension and Surface Area in Conjugated Microporous Polymer and Copolymer Networks

TL;DR: A series of rigid microporous poly(aryleneethynylene) (PAE) networks was synthesized by Sonogashira-Hagihara coupling chemistry and it was shown that physical properties such as micropore size, surface area, and hydrogen uptake could be controlled in a "quantized" fashion by varying the monomer strut length.
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Hydrogen Storage in Microporous Hypercrosslinked Organic Polymer Networks

TL;DR: In this article, a series of hypercrosslinked polymer networks has been synthesized by self-condensation of bischloromethyl monomers such as dichloroxylene (DCX), 4,4‘-bis(chlorometHyl)-1,1'biphenyl (BCMBP), and 9,10-bis (chloromethemyl)anthracene (BCMA), and these materials are predominantly microporous and exhibit Brunauer−Emmett−Teller (BET) surface areas of up to 1904 m2
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Conjugated microporous poly(phenylene butadiynylene)s.

TL;DR: High surface area porous poly(phenylene butadiynylene) networks were obtained (BET surface area up to 842 m(2) g(-1)) by the palladium-catalyzed homocoupling of 1,3,5-triethynylbenzene and 1,4-diethynyl benzene.
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Interstitial oxide ion conductivity in the layered tetrahedral network melilite structure

TL;DR: This work shows how the two-dimensionally connected tetrahedral gallium oxide network in the melilite structure stabilizes oxygen interstitials by local relaxation around them, affording an oxide ion conductivity of 0.02-0.1 S cm(-1) over the 600-900 degrees C temperature range.