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Author

Hua Guo

Bio: Hua Guo is an academic researcher from Shanghai Institute of Technology. The author has contributed to research in topics: Cuboctahedron. The author has co-authored 1 publications.
Topics: Cuboctahedron

Papers
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Journal ArticleDOI
TL;DR: In this paper, cuboctahedron nanospheres were synthesized via rapid self-assembly reactions of twelve 90° PdII-containing compounds and twenty-four 120° organic bidentate N-ligands in acetone solution.

3 citations


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TL;DR: In this paper , a metal-organic framework (MOF) based material is manufactured and productively catalyze the oxygen evolution reaction (OER), and the introduction of elemental nickel enhances the catalytic activity of Co-FcDA.

3 citations

Journal ArticleDOI
TL;DR: In this paper , three kinds of electrocatalysts with different structures and properties for the oxygen evolution reaction were constructed by using different binding sites of three different kinds of ligands following a mechanism which involved only *O and *OH species as intermediates.

2 citations

Journal ArticleDOI
TL;DR: In this article , the composition and morphology of metal-organic framework nanoclusters with bimetallic Co/Fe-incorporated PTA/FDA nanclusters is designed for efficient and durable OER electrocatalysts.
Abstract: Summary. Electrochemical water decomposition as a crucial approach for the gradual growth of renewable energy has attracted extensive attention. Metal-organic frameworks (MOFs) which benefit from ultra-high specific surface area, controllable nanostructures, and excellent porosity have been widely used as high activity catalyst for the decomposition of water by electrochemical means. Herein, the composition and morphology of metal–organic framework nanoclusters with bimetallic Co/Fe-incorporated PTA/FDA nanoclusters is designed for efficient and durable OER electrocatalysts, including CoFe-BTC/PTA, CoFe-BTC/FDA, and CoFe-PTA/FDA. The crystal structure of MOF materials is composed of alternating organic hydrocarbon BTC, PTA, or FDA and inorganic metal oxide layer. Co and Fe interact as central atoms, joining BTC, PTA, or FDA ligands to form a highly symmetric MOF structure. The electronic structures and active sites of various metals are different, and the insertion of iron atoms plays a certain role in the regulation of their electronic structures. CoFe-PTA/FDA shows significant OER overpotential η 10 = 295 mV (1.525 V vs. RHE) reached 10 mA cm-2, with 62.85 mV dec-1 for Tafel slope and pretty conspicuous stability (72 hours of continuous testing). The DFT calculation results show coordination unsaturated metal atom is the primary active center of these electrocatalytic reaction, and the coupling effect caused by adding Fe is the key to adjust the electrocatalytic activity.