The key role of carboxylate ligands in Ru@Ni-MOFs/NF in promoting water dissociation kinetics for effective hydrogen evolution in alkaline media

Li, Chengfei; Shuai, Ting-Yu; Zheng, Lirong; Tang, Haibo; Zhao, Jiawei; Li, Gao‐Ren

doi:10.1016/j.cej.2022.138618

Cited by 61 publications

(43 citation statements)

References 49 publications

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“…Surprisingly, the Ni 2+ /Ni 3+ ratio decreased from 7.0 to 6.5, indicating a shift in the high oxidation phase of Ni throughout the catalytic system, indicating that nickel sulfides also serve as catalytic sites for the OER, which revealed the synergistic interaction between nickel sulfides and MOFs in NSQDs@NiFe-TPA. 46–51 Moreover, no peaks related to S 2p were observed after the OER test (Fig. S3f†), indicating that nickel sulfides were transformed into highly active Ni–OOH, which agrees with the results of XRD.…”

Section: Resultssupporting

confidence: 85%

In situformation of nickel sulfide quantum dots embedded into a two-dimensional metal–organic framework for water splitting

Lin

Zhou

Amin

et al. 2023

Inorg. Chem. Front.

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Section: Resultssupporting

confidence: 85%

In situformation of nickel sulfide quantum dots embedded into a two-dimensional metal–organic framework for water splitting

Lin

Zhou

Amin

et al. 2023

Inorg. Chem. Front.

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“…The development of renewable and ecofriendly energy resources is crucial to meet the global growing demand for energy and alleviate environmental pollution problems caused by fossil fuel consumption. − The electrochemically driven water splitting reaction promises a convenient and promising approach for renewable energy storage in the form of hydrogen fuel, which consists of two complementary half-reactions, i.e., the anodic oxygen evolution reaction (OER) and the cathodic hydrogen evolution reaction (HER). − However, the kinetics of OER is sluggish because of its multistep proton-coupled electron transfer processes, which largely limits the efficiency of this technology. − Accordingly, active and durable electrocatalysts are urgently desired to substantially expedite the OER and thus achieve high energy conversion efficiency. Until now, Ru/Ir-based materials exhibit excellent OER catalytic performance, while their exorbitant price and scarcity pose great constraints for widespread commercial applications. − Therefore, the development of cost-efficient, stable, and environmentally friendly electrocatalysts for OER has been an imperative yet challenging issue.…”

Section: Introductionmentioning

confidence: 99%

Prussian Blue Analogue-Assisted Formation of Iron–Nickel Selenide Porous Nanosheets for Enhanced Oxygen Evolution

Chen

et al. 2023

ACS Appl. Energy Mater.

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The development of active and stable electrocatalysts made from earth-abundant elements to accelerate the oxygen evolution reaction (OER) kinetics is of great significance for improving the efficiency of overall water splitting. Herein, a Prussian blue analogue (PBA)-assisted strategy to synthesize FeSe−NiSe nanosheets is reported. With this approach, porous FeSe−NiSe nanosheets supported on conductive Ni foam (NF) are fabricated via controlled chemical etching of Ni(OH) 2 /NF with Fe(CN) 6 3− and subsequent selenylation treatment. The as-derived FeSe−NiSe/NF electrode with unique interpenetrated porous threedimensional (3D) network architecture successfully combines the desired merits including high conductivity and a large specific surface area. As a result, it exhibits enhanced electrocatalytic OER performance in alkaline media, which requires overpotentials of only 234 and 268 mV to deliver current densities of 10 and 100 mA cm −2 , respectively, outclassing its counterpart NiSe/NF. Furthermore, the catalyst possesses a very low Tafel slope (22 mV dec −1 ) and excellent durability.

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“…It was clearly observed that the peaks at 3082, 2668, 2556, and 932 cm −1 matched well with the characteristic vibration peaks of the carboxyl group and -OH in PTA ( Mohamadi et al, 2020 ). The peaks at 1695, 1611, and 731 cm −1 belonged to the 1, 4-disubstitution peak of Ar-COOH ( Li et al, 2023 ). The peaks at 1536 cm −1 were derived from the copper carboxylate of Cu-MOF-3.…”

Section: Results and Analysismentioning

confidence: 99%

The synthesis and highly effective antibacterial properties of Cu-3, 5-dimethy l-1, 2, 4-triazole metal organic frameworks

Ding²,

Liu³

et al. 2023

Front. Chem.

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The influence of metal ions, the state of metal salt, and ligands on the sterilization ability of (Metalorganic frameworks) MOFs to effectively achieve sterilization has been investigated in this study. Initially, the MOFs were synthesized by elements of Zn, Ag, and Cd for the same periodic and main group of Cu. This illustrated that the atomic structure of Cu was more beneficial for coordinating with ligands. To further induce the maximum amount of Cu2+ ions in the Cu-MOFs to achieve the highest sterilization, various Cu-MOFs synthesized by the different valences of Cu, various states of copper salts, and organic ligands were performed, respectively. The results demonstrated that Cu-MOFs synthesized by 3, 5-dimethyl-1, 2, 4-triazole and tetrakis (acetonitrile) copper(I) tetrafluoroborate presented the largest inhibition-zone diameter of 40.17 mm towards Staphylococcus Aureus (S. aureus) under dark conditions. The proposed mechanism of Cu (Ⅱ) in MOFs could significantly cause multiple toxic effects, such as the generation of reactive oxygen species, and lipid peroxidation in S. aureus cells, when the bacteria was anchored by the Cu-MOFs via electrostatic interaction. Finally, the broad antimicrobial properties of Cu-MOFs against Escherichia coli (E. coli), Acinetobacter baumannii (A. baumannii), and S. aureus were demonstrated. In conclusion, the Cu-3, 5-dimethyl-1, 2, 4-triazole MOFs appeared to be potential antibacterial catalysts in the antimicrobial field.

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The key role of carboxylate ligands in Ru@Ni-MOFs/NF in promoting water dissociation kinetics for effective hydrogen evolution in alkaline media

Cited by 61 publications

References 49 publications

In situformation of nickel sulfide quantum dots embedded into a two-dimensional metal–organic framework for water splitting

In situformation of nickel sulfide quantum dots embedded into a two-dimensional metal–organic framework for water splitting

Prussian Blue Analogue-Assisted Formation of Iron–Nickel Selenide Porous Nanosheets for Enhanced Oxygen Evolution

The synthesis and highly effective antibacterial properties of Cu-3, 5-dimethy l-1, 2, 4-triazole metal organic frameworks

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