Polyaniline-metal organic framework (Fe-BTC) composite for electrochemical applications

Milakin, Konstantin A.; Gavrilov, Nemanja; Pašti, Igor A.; Morávková, Zuzana; Acharya, Udit; Unterweger, Christoph; Breitenbach, Stefan; Zhigunov, Alexander; Bober, Patrycja

doi:10.1016/j.polymer.2020.122945

Cited by 30 publications

(19 citation statements)

References 54 publications

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“…34 A series of bands associated with the aromatic ring are listed as follows: (i) bands at 1560 and 1445 cm −1 are attributed to CC stretching, (ii) bands at 1106 cm −1 represent in-plane CH bending patterns, and (iii) two bands at 730 and 713 cm −1 represent out-of-plane CH bending patterns. 35…”

Section: Resultsmentioning

confidence: 99%

Fe–Co–Ni trimetallic organic framework chrysanthemum-like nanoflowers: efficient and durable oxygen evolution electrocatalysts

Deng

Yin

et al. 2022

J. Mater. Chem. A

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Section: Resultsmentioning

confidence: 99%

Fe–Co–Ni trimetallic organic framework chrysanthemum-like nanoflowers: efficient and durable oxygen evolution electrocatalysts

Deng

Yin

et al. 2022

J. Mater. Chem. A

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“…The table does not include the papers describing composites or doped materials based on the commercial Basolite F300. [48] Method Powder 1312 [c] 1.41 [45] Direct precipitation few minutes, room T (aged 24 h) Trimesic acid-Iron nitrate in methanol Powder 6.17 [c] 0.036 [18] [a] N,N dimethylformamide. For the first time, this research contribution showed the preparation of FeÀ BTC material gels induced by ultrasonic irradiation; the present work opens up novel opportunities that sonochemistry may offer in obtaining MOFs gels.…”

Section: Discussionmentioning

confidence: 99%

Formation of Iron (III) Trimesate Xerogel by Ultrasonic Irradiation

et al. 2022

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Fe−BTC materials have attracted vast attention owing to their high chemical stability, adaptable synthesis, and potential applications. Herein, we describe, for the first time, the preparation of iron trimesate gels by ultrasonic (US) irradiation of an aqueous solution of Iron (III) nitrate and trimesic acid. Two different procedures were used: (1) sonication for 10 or 20 minutes, (2) 3 minutes sonication under controlled pH (pH 3–5). After drying, stable Fe−BTC xerogels were obtained from both procedures. The xerogels consisted of interconnected spherical nanoparticles with similar microstructure when analyzed by FT‐IR and PXRD and similar thermal behavior under oxygen in the range of 25–900 °C. When analyzed by Nitrogen adsorption‐desorption at 77 K, all samples showed a permanent porosity with a narrow micropore distribution below 10 Å. Different textural properties were found among samples obtained with the same procedure. The product of 10 minutes sonication had a specific surface area (SSA) of 1042 m2/g.

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“…Metal–organic frameworks (MOFs) are novel materials with a modular structure, which consists of metal cluster nodes bound by organic linkers . Due to their flexible composition and functionalization paired with porous structure and high specific surface area, they can be used for drug delivery, − catalysis, − sensing, − or gas storage − and can be attractive templates for PANI-based composites. ,, However, they are considered to have relatively low thermal, hydrothermal, and chemical stability, which can hinder their applicability . Development of Zr-based MOFs, such as UiO-66 and its derivatives, showing superior thermal stability is a step toward overcoming the mentioned drawbacks. , UiO-66, which consists of Zr 6 O 4 (OH) 4 clusters bound by terephthalic acid ligands, and its derivative UiO-66-NH 2 with 2-aminoterephthalic acid as a ligand have been successfully used as templates for the synthesis of PANI-based composites. − PANI-UiO-66 or PANI-UiO-66-NH 2 was prepared by either chemical − or electrochemical approaches and used as sensors, , adsorbents, , and supercapacitor electrode materials. − The most common chemical polymerization procedure included oxidative polymerization of aniline in the presence of the MOF dispersion. − , The resulting composite materials were found to have high specific surface area ,, and excellent electrochemical performance. , However, most of the published works do not study the effect of the MOF nature and functionalization on the structure and properties of the prepared materials, which is important for their further development and designing the products with desired characteristics.…”

Section: Introductionmentioning

confidence: 99%

Effect of a Zr-Based Metal–Organic Framework Structure on the Properties of Its Composite with Polyaniline

Milakin

Gupta

Kobera

et al. 2023

ACS Appl. Mater. Interfaces

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Composites of polyaniline (PANI) and Zr-based metal–organic frameworks (MOFs), UiO-66 and UiO-66-NH2, were synthesized by the oxidative polymerization of aniline in the presence of MOF templates with the MOF content in the resulting materials (78.2 and 86.7 wt %, respectively) close to the theoretical value (91.5 wt %). Scanning electron microscopy and transmission electron microscopy showed that the morphology of the composites was set by the morphology of the MOFs, whose structure was mostly preserved after the synthesis, based on the X-ray diffraction data. Vibrational and NMR spectroscopies pointed out that MOFs participate in the protonation of PANI and conducting polymer chains were grafted to amino groups of UiO-66-NH2. Unlike PANI-UiO-66, cyclic voltammograms of PANI-UiO-66-NH2 showed a well-resolved redox peak at around ≈0 V, pointing at the pseudocapacitive behavior. The gravimetric capacitance of PANI-UiO-66-NH2, normalized per mass of the active material, was also found to be higher compared to that of pristine PANI (79.8 and 50.5 F g–1, respectively, at 5 mV s–1). The introduction of MOFs into the composites with PANI significantly improved the cycling stability of the materials over 1000 cycles compared to the pristine conducting polymer, with the residual gravimetric capacitance being ≥100 and 77%, respectively. Thus, the electrochemical performance of the prepared PANI-MOF composites makes them attractive materials for application in energy storage.

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Polyaniline-metal organic framework (Fe-BTC) composite for electrochemical applications

Cited by 30 publications

References 54 publications

Fe–Co–Ni trimetallic organic framework chrysanthemum-like nanoflowers: efficient and durable oxygen evolution electrocatalysts

Fe–Co–Ni trimetallic organic framework chrysanthemum-like nanoflowers: efficient and durable oxygen evolution electrocatalysts

Formation of Iron (III) Trimesate Xerogel by Ultrasonic Irradiation

Effect of a Zr-Based Metal–Organic Framework Structure on the Properties of Its Composite with Polyaniline

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