Two new Zn (II) bdc Metal-Organic Frameworks based on benzene 1, 4-dicarboxylic acid: Synthesis, Crystal structures, Luminescent properties and Electrochemical studies

Omkaramurthy, B. M.; Krishnamurthy, G.; Prasad, N. L.

doi:10.1016/j.matpr.2020.03.298

Cited by 10 publications

(7 citation statements)

References 30 publications

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“…As shown in Figure c, a weak wide band at 3596 cm –1 and a wide band in the region from 3000 to 3515 cm –1 correspond to the coordinated −OH and H 2 O, respectively . The two strong separated bands of 1568 and 1377 cm –1 demonstrate that −COO– is bidentate coordinated with Ni/Fe ions. − The extensional vibration band (1500 cm –1 ) of the para-aromatic C–H group and bending vibration band (810 and 747 cm –1 ) of the aromatic ring demonstrate the existence of the benzene ring. , In the enlarged view (Figure d), O–Ni–O corresponds to the peaks at 439, 524, and 676 cm –1, and the weak peak at 540 cm –1 in the Fe–MOF is attributed to Fe–O . Percentage of atomic content for different elements is shown in Table S1, and the actual atomic ratio of Ni to Fe is close to the target ratio.…”

Section: Resultsmentioning

confidence: 88%

Room-Temperature Mixed-Potential Type ppb-Level NO Sensors Based on K₂Fe₄O₇ Electrolyte and Ni/Fe–MOF Sensing Electrodes

Zhang

et al. 2021

ACS Sens.

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Portable and sensitive mixed-potential type solid-state electrolyte (MPSE) gas sensors can detect exhaled biomarkers in a noninvasive and inexpensive way, which is significant for convenient disease diagnosis and saving medical resources. However, high working temperature is still one of the main bottlenecks for hindering MPSE gas sensors’ applications in disease diagnosis. Here, we, for the first time, developed and fabricated new room-temperature MPSE gas sensors utilizing K2Fe4O7 electrolyte and Ni/Fe–MOF (Ni/Fe clusters are coordinated with 1,4-H2BDC) sensing electrodes (SEs) for the detection of ppb-level NO. Among different MOF SEs, the sensor attached with the Ni–MOF SE presents the highest NO sensitivities. This is attributed to a reducing oxygen reduction reaction activity and enhancing NO electrochemical catalytic reaction activity, verified by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) tests. In addition, the presented sensor also shows a low detection limit (20 ppb), fast response/recovery characteristic (17 s/6 s to 50 ppb NO), excellent selectivity, acceptable repeatability, and long-term stability of 34 days to NO at 25 °C and 60%RH. Simultaneously, the mechanism of humidity effect on the sensing performance was investigated by EIS and CV tests. Our work provides new insight into the development of room-temperature solid-state electrolyte gas sensors based on the mixed-potential mechanism and enlarges the potential application domain.

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Section: Resultsmentioning

confidence: 88%

Room-Temperature Mixed-Potential Type ppb-Level NO Sensors Based on K₂Fe₄O₇ Electrolyte and Ni/Fe–MOF Sensing Electrodes

Zhang

et al. 2021

ACS Sens.

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“…If these organic linkers’ traits are correlated with a particular application, this interpretation could assist in accumulating all the application-specific MOFs. For instance, BDC derivative MOFs have been found to have superior luminescence properties and can be utilized for luminescent applications . BTC-based MOFs exhibit several applications ranging from gas storage, catalysis, gas separation, energy storage, and so forth .…”

Section: Resultsmentioning

confidence: 99%

“…For instance, BDC derivative MOFs have been found to have superior luminescence properties and can be utilized for luminescent applications. 46 BTC-based MOFs exhibit several applications ranging from gas storage, catalysis, gas separation, energy storage, and so forth. 47 Recently, Cu-BTC-derived composites demonstrated outstanding potential for carbon dioxide capture applications.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Building Unit Extractor for Metal–Organic Frameworks

Halder

Prerna

Singh

2021

J. Chem. Inf. Model.

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Metal−organic frameworks (MOFs) have relevance in extensive applications such as gas adsorption, separation, and energy storage. The tunability demonstrated by MOFs has encouraged research on MOF database generation via distinct methodologies. One of the crucial stages of these procedures is pre-processing, which often includes extraction of the building units (BUs). The process of BU extraction is intricate, and it is further amplified with the presence of solvent molecules/ions in the structure. This work presents MOF BU developer (mBUD), a platform to deconstruct the BUs, such as metal nodes, organic linkers, and functional groups of the MOF structure. The deconstruction algorithm has been assessed on the MOF structures of the CoRE MOF 2019 database. A total of 2,580 BUs have been extracted and provided as a database. This platform has been utilized to create a ready-to-use database of unique BUs deconstructed from the CoRE MOF database. We have also provided the web version of mBUD that can be easily used to extract BUs. These BUs can be employed to develop hypothetical MOF structures. It is envisaged that the BU database built with the deconstruction platform will aid the design of novel applicationspecific MOFs.

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“…So the present investigation is designed to achieve the requisite electrochemical performance for this system through physico‐chemical and electrochemical performance for the first time and exploring the concentration effect of the reduced graphene oxide (rGO) in situ performance with zinc phosphate @ BDC through facile microwave synthesis route and fabricating as a supercapacitor electrode without using binder is attempted for the first time and thereafter studying the HSC device performance are the novel approach in the present investigation. [ 23–26 ]…”

Section: Introductionmentioning

confidence: 99%

“…So the present investigation is designed to achieve the requisite electrochemical performance for this system through physico-chemical and electrochemical performance for the first time and exploring the concentration effect of the reduced graphene oxide (rGO) in situ performance with zinc phosphate @ BDC through facile microwave synthesis route and fabricating as a supercapacitor electrode without using binder is attempted for the first time and thereafter studying the HSC device performance are the novel approach in the present investigation. [23][24][25][26] The possibility of preparing the working electrode without binder is presumably owing to the inherent adhesive nature of zinc phosphate. Since active substance is zinc phosphate, it is default cementation onto the current collector substrate thereby performing as an effective binder.…”

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confidence: 99%

Investigation of Benzene 1,4‐Dicarboxylic Acid MOF Linker Encapped Zinc Phosphate @ rGO‐Based Binder‐Free Electrode for Hybrid Supercapacitor Applications

Ravi

Vickraman

Raja

2023

Physica Status Solidi (a)

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Maneuvering, railing, capturing, harvesting, and storing of energy tractable from renewable and nonrenewable sources brings forth natural stumbling block, which necessitated the emergence of alternative resources rather electrochemical storage devices since 19 th /20 th centuries. [1] The portable electronic gadgets have demanded better performance in terms of two vital electrochemical components energy density (ED) and power density (PD). [2,3] The researchers have a tandem approach on these parameters depending upon the threshold for utility advented another energy (besides rechargeable batteries) storage device, namely, electrochemical capacitors or ultracapacitors or the commonality refers to the supercapacitors (SCs). [4,5] Then the perception of SCs has transcended based on their working mechanism presented their the elusive state of art as EDLC, pseudo, and hybrid SCs. [6,7] Consequently, the innovative methodology has been engineered on electrodes befitting for SCs (symmetric, asymmetric, and hybrid), and their physio-chemical intricacies have been evolved empirically so as to accomplish the basic requisites appropriately demanded for electrodes for the energy storage materials. [8] As far as the stability and higher specific capacitance are concerned on SCs with the specific reference to implicit electrodes implored, the researchers have come across transition metal oxides, nitrides, phosphides, chalcogenides, phosphates, and so on have been identified as suitable material matrices for electrodes of SCs. [9] In particular, the specific functionality of the hybrid SCs has superseded EDLC and pseudo SCs because of the hybrid composites. [10][11][12][13] In the recent past, the back-up background for hybrid electrodes has imperatively summoned to be highly flexible without compromising their hold up lattice profile strongly coordinated geometry refers to metal-organic framework (MOF), which might certainly be promising toward technological improvisation onto the electrodes stability performance @ higher cycles for SCs device applications. [14][15][16][17] Numerous research works on MOF-based transition metals (TM) based oxides, chalcogenides, and phosphides are found to be promising for hybrid supercapacitor (HSC) applications. [18][19][20] In this line, Shigeyuki et al. attempted zinc @ BDC and reported Cs of 245 F g À1 @ 1 A g À1 with binder. [21] The role of the binder is to hold on both current collector and the active material. The disadvantage of the binder is its electrochemical inactiveness and its unnecessary loading constitutes "the dead mass," which constricts the electrochemical activity of the active material that might be resulting in lower Cs which is not the requisite for SC device applications. The novelty of the present investigation is to enhance the Cs, ED, and cyclic stability of the requisite SCs device performance without using a binder and improving the active material's performance in the present investigation. However, PO 3À 4 coordinated TM-based MOF have not yet been explored. Th...

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Two new Zn (II) bdc Metal-Organic Frameworks based on benzene 1, 4-dicarboxylic acid: Synthesis, Crystal structures, Luminescent properties and Electrochemical studies

Cited by 10 publications

References 30 publications

Room-Temperature Mixed-Potential Type ppb-Level NO Sensors Based on K₂Fe₄O₇ Electrolyte and Ni/Fe–MOF Sensing Electrodes

Room-Temperature Mixed-Potential Type ppb-Level NO Sensors Based on K₂Fe₄O₇ Electrolyte and Ni/Fe–MOF Sensing Electrodes

Building Unit Extractor for Metal–Organic Frameworks

Investigation of Benzene 1,4‐Dicarboxylic Acid MOF Linker Encapped Zinc Phosphate @ rGO‐Based Binder‐Free Electrode for Hybrid Supercapacitor Applications

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Two new Zn (II) bdc Metal-Organic Frameworks based on benzene 1, 4-dicarboxylic acid: Synthesis, Crystal structures, Luminescent properties and Electrochemical studies

Cited by 10 publications

References 30 publications

Room-Temperature Mixed-Potential Type ppb-Level NO Sensors Based on K2Fe4O7 Electrolyte and Ni/Fe–MOF Sensing Electrodes

Room-Temperature Mixed-Potential Type ppb-Level NO Sensors Based on K2Fe4O7 Electrolyte and Ni/Fe–MOF Sensing Electrodes

Building Unit Extractor for Metal–Organic Frameworks

Investigation of Benzene 1,4‐Dicarboxylic Acid MOF Linker Encapped Zinc Phosphate @ rGO‐Based Binder‐Free Electrode for Hybrid Supercapacitor Applications

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Product

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Room-Temperature Mixed-Potential Type ppb-Level NO Sensors Based on K₂Fe₄O₇ Electrolyte and Ni/Fe–MOF Sensing Electrodes

Room-Temperature Mixed-Potential Type ppb-Level NO Sensors Based on K₂Fe₄O₇ Electrolyte and Ni/Fe–MOF Sensing Electrodes