Unravelling the structural‐property relations of porphyrinoids with respect to photo‐ and electro‐chemical activities

Singh, Gita; Chandra, Sudeshna

doi:10.1002/elsa.202100149

Cited by 21 publications

(5 citation statements)

References 118 publications

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“…Porphyrin and metalloporphyrin complexes present peculiar physicochemical characteristics and are easily tunable, which offers the possibility of being used in a good number of technological applications in fields such as biomedical applications, solar cells, chemical and biochemical sensors, and nanowires/nanomotors [ 1 , 2 , 3 , 4 , 5 ]. Due to their stable macrocyclic structure, porphyrins constitute an exceptional class of ligands with tailorable chemical properties, which is of high interest in the development of selective homogeneous or heterogeneous catalysts and photocatalysts [ 1 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

V-Porphyrins Encapsulated or Supported on Siliceous Materials: Synthesis, Characterization, and Photoelectrochemical Properties

et al. 2022

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Metalloporphyrin-containing mesoporous materials, named VTPP@SBA, were prepared via a simple anchoring of vanadyl porphyrin (5,10,15,20-Tetraphenyl-21H,23H-porphine vanadium(IV) oxide) through a SBA-15-type mesoporous material. For comparison, vanadyl porphyrin was also impregnated on SiO2 (VTPP/SiO2). The characterization results of catalysts by XRD, FTIR, DR-UV-vis, and EPR confirm the incorporation of vanadyl porphyrin within the mesoporous SBA-15. These catalysts have also been studied using electrochemical and photoelectrochemical methods. Impedance measurements confirmed that supporting the porphyrin in silica improved the electrical conductivity of samples. In fact, when using mesoporous silica, current densities associated with oxidation/reduction processes appreciably increased, implying an enhancement in charge transfer processes and, therefore, in electrochemical performance. All samples presented n-type semiconductivity and provided an interesting photoelectrocatalytic response upon illumination, especially silica-supported porphyrins. This is the first time that V-porphyrin-derived materials have been tested for photoelectrochemical applications, showing good potential for this use.

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Section: Introductionmentioning

confidence: 99%

V-Porphyrins Encapsulated or Supported on Siliceous Materials: Synthesis, Characterization, and Photoelectrochemical Properties

et al. 2022

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“…Nevertheless, continued research in this area could lead to transformative improvements in supercapacitor energy density and bring this technology closer to meeting storage needs for nextgeneration devices and systems. 79 Electrochemical energy storage (ECS) devices such as batteries and supercapacitors offer unprecedented deployment options that could help address climate change, fossil fuel depletion, and environmental pollution. For example, when electric vehicles accelerate or brake regeneratively, energy storage devices are crucial for implementing optimized power management strategies over driving cycles.…”

Section: Background On Energy Storage Technologiesmentioning

confidence: 99%

Progress and Prospects of MXene-Based Hybrid Composites for Next-Generation Energy Technology

Mohd Abdah,

Thakur

et al. 2023

J. Electrochem. Soc.

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MXenes are an emerging class of two-dimensional transition metal carbides and nitrides with metallic conductivity and hydrophilic surfaces. The discovery of MXenes has opened new possibilities for developing advanced hybrid composites for energy storage and conversion applications. This review summarizes recent advances in developing MXene-based hybrid composites, including their synthesis, characterization, and electrochemical performance. The heterostructure of MXenes with nanocarbons, metal oxides, polymers, and other nanomaterials can overcome the limitations of pristine MXenes and lead to enhanced lithium/sodium-ion storage, pseudocapacitive performance, and electrocatalytic activity. Various fabrication techniques have been employed to synthesize MXene composites with controlled nanostructures, morphology, and interfacial properties. Characterization by microscopy, spectroscopy, and electrochemical methods has shed light on structure-property relationships in these materials. As electrode materials, properly designed MXene hybrids have achieved high specific capacity, excellent rate capability, and long-term stability. The review also discusses strategies for further improving MXene composite energy storage performance, as well as emerging applications such as thermoelectrics and photocatalysis. Continued research to understand interfacial effects and optimize MXene heterostructures holds promise for developing next-generation energy storage technologies.

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“…The efficacy of photodynamic action is significantly related on the structure of the PS and its ability to produce ROS. While various classes of organic compounds have been explored as PS in aPDT, porphyrins and related macrocycles stand out as prime candidates. ,,− The considerable focus on synthesizing porphyrinoids, recognized for their biological relevance, is due to their unique properties suitable for a broad range of applications. − …”

Section: Introductionmentioning

confidence: 99%

Can Porphyrin–Triphenylphosphonium Conjugates Enhance the Photosensitizer Performance Toward Bacterial Strains?

Chaves,

Morais,

Vieira

et al. 2024

ACS Appl. Bio Mater.

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Antimicrobial photodynamic treatment (aPDT) offers an alternative option for combating microbial pathogens, and in this way, addressing the challenges of growing antimicrobial resistance. In this promising and effective approach, cationic porphyrins and related macrocycles have emerged as leading photosensitizers (PS) for aPDT. In general, their preparation occurs via N-alkylation of nitrogen-based moieties with alkyl halides, which limits the ability to fine-tune the features of porphyrin-based PS. Herein, is reported that the conjugation of porphyrin macrocycles with triphenylphosphonium units created a series of effective cationic porphyrinbased PS for aPDT. The presence of positive charges at both the porphyrin macrocycle and triphenylphosphonium moieties significantly enhances the photodynamic activity of porphyrin-based PS against both Gram-positive and Gram-negative bacterial strains. Moreover, bacterial photoinactivation is achieved with a notable reduction in irradiation time, exceeding 50%, compared to 5,10,15,20-tetrakis(1-methylpyridinium-4yl)porphyrin (TMPyP), used as the reference and known as good PS. The improved capability of the porphyrin macrocycle to generate singlet oxygen combined with the enhanced membrane interaction promoted by the presence of triphenylphosphonium moieties represents a promising approach to developing porphyrin-based PS with enhanced photosensitizing activity.

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Unravelling the structural‐property relations of porphyrinoids with respect to photo‐ and electro‐chemical activities

Cited by 21 publications

References 118 publications

V-Porphyrins Encapsulated or Supported on Siliceous Materials: Synthesis, Characterization, and Photoelectrochemical Properties

V-Porphyrins Encapsulated or Supported on Siliceous Materials: Synthesis, Characterization, and Photoelectrochemical Properties

Progress and Prospects of MXene-Based Hybrid Composites for Next-Generation Energy Technology

Can Porphyrin–Triphenylphosphonium Conjugates Enhance the Photosensitizer Performance Toward Bacterial Strains?

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