ZIF-8: A comparison of synthesis methods

Lee, Yu-Ri; Jang, Min-Kyung; Cho, Hye-Young; Kwon, Hee-Jin; Kim, Sangho; Ahn, Wha‐Seung

doi:10.1016/j.cej.2015.02.094

Cited by 534 publications

(230 citation statements)

References 27 publications

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“…Initially, ZIF-8 was synthesized in methanol at room temperature (for details see the Supplementary Information). The synthesis route was selected because the synthesis reaction could be promoted by molecular interactions between the reagents and the solvent with hydrogen-bond donation ability, which could improve textural properties and produce a smaller particle size of ZIF-81920. According to the results of X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), and nitrogen adsorption/desorption measurements shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Nitrogen-doped Carbon Derived from ZIF-8 as a High-performance Metal-free Catalyst for Acetylene Hydrochlorination

Chao

Zou

Wan

et al. 2017

Sci Rep

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Acetylene hydrochlorination is a major industrial technology for manufacturing vinyl chloride monomer in regions with abundant coal resources; however, it is plagued by the use of mercury(II) chloride catalyst. The development of a nonmercury catalyst has been extensively explored. Herein, we report a N-doped carbon catalyst derived from ZIF-8 with both high activity and quite good stability. The acetylene conversion reached 92% and decreased slightly during a 200 h test at 220 °C and atmospheric pressure. Experimental studies and theoretical calculations indicate that C atoms adjacent to the pyridinic N are the active sites, and coke deposition covering pyridinic N is the main reason for catalyst deactivation. The performance of those N-doped carbons makes it possible for practical applications with further effort. Furthermore, the result also provides guidance for designing metal-free catalysts for similar reactions.

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Section: Resultsmentioning

confidence: 99%

“…In addition, to make the material synthesis more efficient and convenient, ZIF-8 was prepared using a solid-state synthesis, in which ZnO was mixed with ligands and heated directly to yield ZIF-81620. Although there are some differences in the crystal size and crystallinity of ZIF-8 synthesized via different routes (See Supplementary Fig.…”

Section: Resultsmentioning

confidence: 99%

Nitrogen-doped Carbon Derived from ZIF-8 as a High-performance Metal-free Catalyst for Acetylene Hydrochlorination

Chao

Zou

Wan

et al. 2017

Sci Rep

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show abstract

“…All of the methods were effective, and produced ZIF-8 with similar textural properties. However, sonochemical and dry-gel methods produced smaller primary particles, and dry-gel and mechanochemical methods enabled to obtain higher product yields than the others [143].…”

Section: Methods 4: Catalysts Derived From Metal Organic Framework (Mmentioning

confidence: 95%

Transition Metal–Nitrogen–Carbon (M–N–C) Catalysts for Oxygen Reduction Reaction. Insights on Synthesis and Performance in Polymer Electrolyte Fuel Cells

Osmieri

2019

ChemEngineering

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Platinum group metal (PGM)-free catalysts for oxygen reduction reaction (ORR) have attracted increasing interest as potential candidates to replace Pt, in the view of a future widespread commercialization of polymer electrolyte fuel cell (PEFC) devices, especially for automotive applications. Among different types of PGM-free catalysts, M–N–C materials appear to be the most promising ones in terms of activity. These catalysts can be produced using a wide variety of precursors containing C, N, and one (or more) active transition metal (mostly Fe or Co). The catalysts synthesis methods can be very different, even though they usually involve at least one pyrolysis step. In this review, five different synthesis methods are proposed, and described in detail. Several catalysts, produced approximately in the last decade, were analyzed in terms of performance in rotating disc electrode (RDE), and in H2/O2 or H2/air PEFC. The catalysts are subdivided in five different categories corresponding to the five synthesis methods described, and the RDE and PEFC performance is put in relation with the synthesis method.

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“…Then the dried PE foam were immersed into the mixture for 1 h under room temperature, washed with methanol, and dried at 80°C. The prepared ZIF‐8‐PE foam by this method was denominated PE‐ZIF‐sono .…”

Section: Methodsmentioning

confidence: 99%

Study oil/water separation property of PE foam and its improvement by in situ synthesis of zeolitic–imidazolate framework (ZIF‐8)

Chen

Wang

Nagamine

et al. 2019

Polymer Engineering & Sci

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Herein, the oil/water separation property of four polyethylene (PE) foams with two different volume expansion ratios including 15 and 30 times was studied. We found that the PE‐30‐1 foam was the best absorbent materials among these four samples, which was also superior to the commercially available products. It demonstrated high oil absorption capacities, as well as high oil/water selectivity, which was due to its small average pore size and high porosity. In addition, this work also reports two rapid and straightforward methods to fabricate PE‐30‐1‐ZIF‐8 composite with enhanced compressive property, an encouraging absorption capacity for different organic solvents, reaching 59 times of its own weight for chloroform, as well as increased oil–water selectivity of the system. Comparing with the PE foam, the organic solvent absorption capacities for PE‐ZIF‐8‐sono composite foams were improved by 6.4%, 29%, 9.1%, and 12% for chloroform, acetone, toluene and oleic acid, respectively, while the corresponding improvement for PE‐ZIF‐8‐Me(OH) was about 7.5%, 28%, 14%, and 15%, respectively. These PE‐ZIF‐8 foams could reach the requirement for oil spill cleanup, suggesting its great potential for this type of application. POLYM. ENG. SCI., 59:1354–1361 2019. © 2019 Society of Plastics Engineers

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ZIF-8: A comparison of synthesis methods

Cited by 534 publications

References 27 publications

Nitrogen-doped Carbon Derived from ZIF-8 as a High-performance Metal-free Catalyst for Acetylene Hydrochlorination

Nitrogen-doped Carbon Derived from ZIF-8 as a High-performance Metal-free Catalyst for Acetylene Hydrochlorination

Transition Metal–Nitrogen–Carbon (M–N–C) Catalysts for Oxygen Reduction Reaction. Insights on Synthesis and Performance in Polymer Electrolyte Fuel Cells

Study oil/water separation property of PE foam and its improvement by in situ synthesis of zeolitic–imidazolate framework (ZIF‐8)

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