0D, 1D and 2D nanomaterials for visible photoelectrochemical water splitting. A Review

Daulbayev, Chingis; Sultanov, Fail; Bakbolat, Baglan; Daulbayev, Olzhas

doi:10.1016/j.ijhydene.2020.09.101

Cited by 88 publications

(45 citation statements)

References 178 publications

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“…Apart from these hydrogen producing technologies, research in other hydrogen producing technologies such as steam reforming of glucose, steam reforming of methanol, and partial oxidation of alcohols 4 have not been scaled up to industrial scale due to high energy demands and huge emissions of carbonaceous compounds. Continuous research in hydrogen production technologies has demonstrated that hydrogen can be produced from photo catalytic pyrolysis of biomass, 5 photocatalytic water splitting using graphene/SrTiO 3 /PAN 6 , pyrolysis of water, 7 photoelectrochemical splitting of water using structured nanomaterials, 8 dark fermentation, 9 and enzyme catalyzed sugar 10 . From comparative study on characteristics of major hydrogen production technologies, 11 catalytic decomposition of methane stands out as an environmentally friendly process of producing hydrogen and carbon from methane.…”

Section: Introductionmentioning

confidence: 99%

Production of clean hydrogen from methane decomposition over molten NiO‐LiOH catalyst systems supported on CaO: Synergistic effect of molten LiOH on catalyst activity

Musamali

Isa

2021

Asia-Pacific J Chem Eng

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Mature hydrogen producing technologies like steam methane reforming, coal combustion, and hydrogenation of hydrocarbons are leading emitters of greenhouse gases into the atmosphere. Catalytic decomposition of methane into carbon and hydrogen is a sure way of controlling the net emission of this greenhouse gas into the atmosphere. In this study, we present an environmentally benign approach of producing hydrogen from methane over a supported molten metal oxide catalyst. Catalyst systems were prepared by incipient wetness impregnation and characterized for crystallinity, shape and size, and surface area using various techniques. Methane conversion experiments were done in a packed bed reactor over three different catalyst systems synthesized from nickel oxide, lithium hydroxide, and calcium oxide (CaO) under various process conditions. Gaseous products from the reactor were analyzed using gas chromatography. Using catalyst 38N12L, 45.9% hydrogen yield was obtained at 650°C and GHSV of 1.2 Lg−1cath−1. The molten environment provided by LiOH enhanced hydrogen yields by 12.6% through surface reaction and chemisorption. Calcium oxide played a bifunctional role as a catalyst support and an adsorbent of in situ generated CO/CO2 gases thereby improving hydrogen quality.

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Section: Introductionmentioning

confidence: 99%

Production of clean hydrogen from methane decomposition over molten NiO‐LiOH catalyst systems supported on CaO: Synergistic effect of molten LiOH on catalyst activity

Musamali

Isa

2021

Asia-Pacific J Chem Eng

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“…1D and 2D nanostructures offer high rate of charge carrier transportation high interfacial free energies due to providing direct pathways for these photogenerated charge carrier movement [19,20]. They also have high interfacial free energies, resulting in their aggregation and loss of active surface area during storage or photocatalytic testing [21]. To overcome this limitation, researchers are now actively exploring hierarchical photocatalyst structures, which contain 1D or 2D TiO 2 components organized into more complex 3D architectures.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic and Antibacterial Properties of a 3D Flower-Like TiO2 Nanostructure Photocatalyst

et al. 2021

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Flower-like titanium dioxide (TiO2) nanostructures are successfully synthesized using a hybrid sol-gel and a simple hydrothermal method. The sample was characterized using various techniques to study their physicochemical properties and was tested as a photocatalyst for methyl orange degradation and as an antibacterial material. Raman spectrum and X-ray diffraction (XRD) pattern show that the phase structure of the synthesized TiO2 is anatase with 80-100 nm in diameter and 150–200 nm in length of flower-like nanostructures as proved by field emission scanning electron microscope (FESEM). The energy-dispersive X-ray spectroscopy (EDS) analysis of flower-like anatase TiO2 nanostructure found that only titanium and oxygen elements are present in the sample. The anatase phase was confirmed further by a high-resolution transmission electron microscope (HRTEM) and selected area electron diffraction (SAED) pattern analysis. The Brunauer-Emmett-Teller (BET) result shows that the sample had a large surface area (108.24 m2/g) and large band gap energy (3.26 eV) due to their nanosize. X-ray photoelectron spectroscopy (XPS) analysis revealed the formation of Ti4+ and Ti3+ species which could prevent the recombination of the photogenerated electron, thus increased the electron transportation and photocatalytic activity of flower-like anatase TiO2 nanostructure to degrade the methyl orange (83.03%) in a short time (60 minutes). These properties also support the good performance of flower-like titanium dioxide (TiO2) nanostructure as an antibacterial material which is comparable with penicillin which is 13.00 ± 0.02 mm inhibition zone against Staphylococcus aureus.

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“…Such materials can be obtained by introducing electrically conductive components into the structure of insulators and poor electrical conductors. Among these materials are 1D carbon fibers, carbon nanotubes, nanowires [ 61 , 62 ], 2D graphene [ 63 ] 3D metal particles [ 64 , 65 ] and other materials.…”

Section: Electrothermal Composite Materials For De-icing Applicationsmentioning

confidence: 99%

A Mini-Review on Recent Developments in Anti-Icing Methods

et al. 2021

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An aggressive impact of the formed ice on the surface of man-made objects can ultimately lead to serious consequences in their work. When icing occurs, the quality and characteristics of equipment, instruments, and building structures deteriorate, which affects the durability of their use. Delays in the adoption of measures against icing endanger the safety of air travel and road traffic. Various methods have been developed to combat de-icing, such as mechanical de-icing, the use of salts, the application of a hydrophobic coating to the surfaces, ultrasonic treatment and electric heating. In this review, we summarize the recent advances in the field of anti-icing and analyze the role of various additives and their operating mechanisms.

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0D, 1D and 2D nanomaterials for visible photoelectrochemical water splitting. A Review

Cited by 88 publications

References 178 publications

Production of clean hydrogen from methane decomposition over molten NiO‐LiOH catalyst systems supported on CaO: Synergistic effect of molten LiOH on catalyst activity

Production of clean hydrogen from methane decomposition over molten NiO‐LiOH catalyst systems supported on CaO: Synergistic effect of molten LiOH on catalyst activity

Photocatalytic and Antibacterial Properties of a 3D Flower-Like TiO2 Nanostructure Photocatalyst

A Mini-Review on Recent Developments in Anti-Icing Methods

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