Rational design and synthesis of hetero-nanostructured electrospun PU@PANI@FeS2: A surface tailored hybrid catalyst for H2 production via electrochemical splitting of water

Manjunatha, C; Patil, Rahul S.; Sudeep, M.; Srinivasa, N.; Kumar, Ravi; Aan, M.P. Sham; Ashoka, S.

doi:10.1016/j.surfin.2020.100445

Cited by 17 publications

(8 citation statements)

References 27 publications

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“…Noble metals like platinum, iridium, and ruthenium exhibit a good catalytic activity but it is too expensive (3,4). Many metal oxide semiconductors like titanium oxide, nickel oxide and zinc oxide were extensively used as catalyst for both HER and OER (5)(6)(7)(8)(9)(10). The high band gap energy and formation of free radicals in presence of UV light are considered as main disadvantage of these metal oxides (11,12).…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Hydrogen Evolution Reaction Using First-Row Transition Metal Complexes as Catalyst

Swathika¹,

Arunadevi²

2022

ECS Trans.

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The precise use of an electrocatalyst for the HER reaction mainly depends on synthesis cost, durability, and over potential. Recently there is promising research for electrocatalyst synthesis using first-row transition metals. Working towards this herein we present synthesis, physio-chemical characterization, and hydrogen evolution activity of amino guanidium metal naphthoate complexes. The obtained electrocatalysts were characterized by element analysis, IR spectra, UV-Visible spectroscopy, TG-DTA, and powder-XRD. The thermal behavior of these compounds has been studied by simultaneous TG-DTA techniques. The isomorphic nature of the metal complexes is evident from powder-XRD data.

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Section: Introductionmentioning

confidence: 99%

Recent Advances in Hydrogen Evolution Reaction Using First-Row Transition Metal Complexes as Catalyst

Swathika¹,

Arunadevi²

2022

ECS Trans.

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“…In this process Hydrogen is readily generated by various forms of renewable and non-renewable energy sources. Hybrid systems like photocatalysis are more thermodynamically favourable when compared to non-hybrid systems [7,8]. In a photocatalytic reaction, both oxidative and reductive processes occur simultaneously.…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Efficient Nanostructured Photocatalysts for Hydrogen Fuel Production: A Short Review

et al. 2022

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Various techniques developed to produce the H2 gas, photocatalytic H2 generation from water splitting is found to be clean and green technology which is in line with the global environment and energy suitability. It involves separation of charge, migration of charge, and chemical reaction on the surface. Various kinds of photocatalysts are used which are made of metal oxides, metal chalcogenides, and graphene-based nanocomposites. This review describes the development of various photocatalysts, such as TiO2, ZnO, MoS2, and their composites. The three-way nitrogen-doped carbon tube covered MoS2 TNCT@MoS2 was reported to be a more efficient photocatalyst. SEM images, XRD results, and diffraction patterns of the above composites were described to correlate with the photocatalytic property. The production of hydrogen using TNCT@MoS2 was found to be much more productive than usual MoS2. In addition to metal oxide and sulfide, the review also covers the photocatalytic behavior of graphene, and S/Se based metal chalcogenide-based compounds and composites (MCCs) were also discussed. The structural features of all these important photocatalysts using XRD, SEM, EDX, and UV-V is techniques were revealed. Finally, the photocatalytic H2 generation efficiency, possible mechanism of all these catalysts, was compared. In summary, we have reviewed the photocatalytic hydrogen production efficiency of metal oxides, metal chalcogenides, and graphene-based nanocomposites.

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“…For example, a pure PU electrospinning fiber mat was made, and then, in situ chemical polymerization of aniline monomers on the surface of PU nanofibers was performed to deposit a conductive PANI layer, showing an electrical conductivity of 0.43 S/cm at 120 min polymerization time; also, the same PU electrospinning fiber mat was in situ polymerized with aniline . FeS 2 together with PANI were deposited on electrospun PU nanofibers via simultaneous precipitation and polymerization to produce the PU@PANI@FeS 2 fiber . Also, both needles were electrospun simultaneously to prepare the PU/PANI/other polymer fiber mat, in which one needle is PU solution and the other is PANI/other polymer solution .…”

Section: Introductionmentioning

confidence: 99%

Self-Adhesion Conductive Sub-micron Fiber Cardiac Patch from Shape Memory Polymers to Promote Electrical Signal Transduction Function

Feng

Shi

Yang

et al. 2021

ACS Appl. Mater. Interfaces

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Myocardial infarction (MI) constitutes the first cause of morbidity and mortality in our life, so using highly conductive and elastic materials to produce an engineered cardiac patch is an effective way to improve the myocardium infarction area function. Here, shape memory polymers of the polyurethane/polyaniline/silicon oxide (PU/PANI/SiO2) electrospinning sub-micron fiber patch were precisely produced in the case of the hydrogen bonding effect and interaction between the carboxyl groups to provide compatibility, phase mixing/miscibility, and stability. The sub-micron fiber patch prepared by our group has some remarkable characteristics, such as sub-micron fibers, 3D porous structure, special thickness to simulate the extracellular matrix (ECM), elastic deformation, good properties in conducting weak electrical signals, stability to maintain the whole structure, and self-adhesion. This sub-micron fiber material has been proven to be effective, easy, and reliable. Through precise design of the material system, structure regulation, and performance optimization, the aim is to produce a sub-micron fiber cardiac patch to simulate the myocardium ECM and improve conductive signal transduction for potential MI therapy.

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Rational design and synthesis of hetero-nanostructured electrospun PU@PANI@FeS2: A surface tailored hybrid catalyst for H2 production via electrochemical splitting of water

Cited by 17 publications

References 27 publications

Recent Advances in Hydrogen Evolution Reaction Using First-Row Transition Metal Complexes as Catalyst

Recent Advances in Hydrogen Evolution Reaction Using First-Row Transition Metal Complexes as Catalyst

Recent Advances in Efficient Nanostructured Photocatalysts for Hydrogen Fuel Production: A Short Review

Self-Adhesion Conductive Sub-micron Fiber Cardiac Patch from Shape Memory Polymers to Promote Electrical Signal Transduction Function

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