Facile synthesis of metal/metal oxide nanoparticles inside a nanoporous carbon matrix (M/MO@C) through the morphology-preserved transformation of metal–organic framework

Bak, Woojeong; Kim, Hee Soo; Chun, Hyungphil; Yoo, Won Cheol

doi:10.1039/c5cc01701g

Cited by 49 publications

(27 citation statements)

References 33 publications

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“…The Barrett–Joyner–Halenda pore size distribution shows two mesopore sizes of 2.2 and 9.5 nm (Figure g). Both the large surface area and the mesopore characteristics contribute to the highly exposed surface area of the active materials and the fast mass transfer of the electrolytes, which can further enhance the electrocatalytic activity …”

Section: Resultsmentioning

confidence: 99%

CuCo Hybrid Oxides as Bifunctional Electrocatalyst for Efficient Water Splitting

Kuang

Han

Wang

et al. 2016

Adv Funct Materials

267

163

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Solar-driven water splitting is a promising approach for renewable energy, where the development of efficient and stable bifunctional electrocatalysts for simultaneously producing hydrogen and oxygen is still challenging. Herein, combined with the hydrogen evolution reaction (HER) activity of a copper(I) complex and oxygen evolution reaction (OER) activity of cobalt-based oxides, a type of 1D copper-cobalt hybrid oxide nanowires (CuCoO-NWs) is developed via a facile two-step growth-conversion process toward a bifunctional water splitting catalyst. The CuCoO-NWs exhibit excellent catalytic performances for both HER and OER in the same basic electrolyte, with optimized low onset overpotentials and high current densities. The efficient HER activity is ascribed to the formation of Cu 2 O, while the activity for OER is primarily enabled by Co-based oxides and abundant oxygen vacancies. The CuCoO-NWs allow for the assembly of a water electrolyzer with strong alkaline media, with a current density of 10 mA cm −2 at 1.61 V. Further combination with a commercial silicon photovoltaic allows the direct use of solar energy for spontaneous water splitting with excellent stability for over 72 h, suggesting the potential as a promising bifunctional electrocatalyst for efficient solar-driven water splitting.

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Section: Resultsmentioning

confidence: 99%

CuCo Hybrid Oxides as Bifunctional Electrocatalyst for Efficient Water Splitting

Kuang

Han

Wang

et al. 2016

Adv Funct Materials

267

163

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“…Recently, W. Bak et al have synthesized Cu/Cu 2 O@C composite materials from MOF through vapor phase polymerization of phenolic resin inside the nanopores of the MOFs followed by thermolysis under an inert atmosphere [16]. The as-prepared composites preserved the morphology of MOF with micropores.…”

Section: Introductionmentioning

confidence: 99%

MOF derived porous carbon supported Cu/Cu 2 O composite as high performance non-noble catalyst

Niu

Liu

Cai

et al. 2016

Microporous and Mesoporous Materials

156

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a b s t r a c tPorous carbon supported copper composite (Cu/Cu 2 O/C) was synthesized with a facile, low cost and novel method and used as non-noble-metal catalyst for reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) by NaBH 4 . In the synthetic strategy, metal organic framework Cu 3 (BTC) 2 (also denoted as HKUST-1) was used as both sacrificial template and copper precursor, and phenol formaldehyde resin as carbon precursor. The catalytic Cu/Cu 2 O nanoparticles (Cu/Cu 2 O NPs) about 40 nm-indiameter distributed uniformly both on the internal and external surface of the porous carbon flakes, and took up 33.38e37.56 wt% of the Cu/Cu 2 O/C composite. Compared with noble metal catalysts, the prepared composite showed comparable high catalytic activity, which was mainly due to their porous structure facilitating diffusion of reactants and products, and the high dispersion of accessible catalytic Cu/Cu 2 O NPs on porous carbon. Moreover, the synthesized catalyst can be reused for at least five cycles due to its good stability. These results confirmed that the as-prepared Cu/Cu 2 O/C is promising candidate to replace noble metal for catalytic application.

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“…Systematic investigation on the transformation of NMOFs into metal nanostructures supported on a porous carbon matrix has been carried out by Bak et al . In this study, a two‐step method was employed to afford M/C composites with efficient control over the size of the metal particles and the porosity of the host carbon matrix, while retaining the original morphology of the initial NMOF crystals.…”

Section: Thermally‐induced Solid‐state Conversion Of Nmofsmentioning

confidence: 99%

“…The NMOF crystals first undergo vapor phase polymerization; this is followed by M@C composite formation via thermolysis; Post‐thermolytic treatment converts these metal nanoparticles into metal oxide species. SEM images b) of the polymer@MOF and c) Cu@C. Low magnification TEM (SEM in inset) images of d) Cu 2 O@C and e) CuO@C . Reproduced with permission from the Royal Society of Chemistry.…”

Section: Thermally‐induced Solid‐state Conversion Of Nmofsmentioning

confidence: 99%

Nano Metal‐Organic Framework‐Derived Inorganic Hybrid Nanomaterials: Synthetic Strategies and Applications

Duy

Rafiq

Yoo

2017

Chemistry A European J

111

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Nano- (or micro-scale) metal-organic frameworks (NMOFs), also known as coordination polymer particles (CPPs), have received much attention because of their structural diversities and tunable properties. Besides the direct use, NMOFs can be alternatively used as sacrificial templates/precursors for the preparation of a wide range of hybrid inorganic nanomaterials in straightforward and controllable manners. Distinct advantages of using NMOF templates are correlated to their structural and functional tailorability at molecular levels that is rarely acquired in any other conventional template/precursor. In addition, NMOF-derived inorganic nanomaterials with distinct chemical and physical properties are inferred to dramatically expand the scope of their utilization in many fields. In this review, we aim to provide readers with a comprehensive summary of recent progress in terms of synthetic approaches for the production of diverse inorganic hybrid nanostructures from as-synthesized NMOFs and their promising applications.

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Facile synthesis of metal/metal oxide nanoparticles inside a nanoporous carbon matrix (M/MO@C) through the morphology-preserved transformation of metal–organic framework

Cited by 49 publications

References 33 publications

CuCo Hybrid Oxides as Bifunctional Electrocatalyst for Efficient Water Splitting

CuCo Hybrid Oxides as Bifunctional Electrocatalyst for Efficient Water Splitting

MOF derived porous carbon supported Cu/Cu 2 O composite as high performance non-noble catalyst

Nano Metal‐Organic Framework‐Derived Inorganic Hybrid Nanomaterials: Synthetic Strategies and Applications

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