SWCNT Photocatalyst for Hydrogen Production from Water upon Photoexcitation of (8, 3) SWCNT at 680-nm Light

  title={SWCNT Photocatalyst for Hydrogen Production from Water upon Photoexcitation of (8, 3) SWCNT at 680-nm Light},
  author={Noritake Murakami and Yuto Tango and Hideaki Miyake and Tomoyuki Tajima and Yuta Nishina and Wataru Kurashige and Yuichi Negishi and Yutaka Takaguchi},
  journal={Scientific Reports},
Single-walled carbon nanotubes (SWCNTs) are potentially strong optical absorbers with tunable absorption bands depending on their chiral indices (n, m). Their application for solar energy conversion is difficult because of the large binding energy (>100 meV) of electron-hole pairs, known as excitons, produced by optical absorption. Recent development of photovoltaic devices based on SWCNTs as light-absorbing components have shown that the creation of heterojunctions by pairing chirality… Expand
18 Citations
Hydrogen-Evolving CNT-Photocatalysts for Effective Use of Solar Energy
H2-evolving photocatalysts based on semiconducting single-walled carbon nanotubes (s-SWCNTs) were fabricated via a physical modification of s-SWCNTs using poly(amidoamine) dendrimer having C60 or anExpand
Photo-induced H2 evolution from water via the dissociation of excitons in water-dispersible single-walled carbon nanotube sensitizers.
To observe a clear-cut example of the formation of mobile carriers from excitons on semiconducting single-walled carbon nanotubes (s-SWCNTs) surrounded by a medium with a high dielectric constant,Expand
Dye-sensitized H2 evolution from water facilitated by photoinduced electron transfer between molecules on the inside and the outside of a carbon nanotube
Dye-encapsulated single-walled carbon nanotubes (dye@SWCNTs) were physically modified to fabricate a water-dispersible dye@SWCNT/dendrimer hybrid. A photocatalytic H2 evolution reaction that usesExpand
Molecular design of benzothiadiazole-based dyes for working with carbon nanotube photocatalysts
Abstract A donor–acceptor–donor (D–A–D) dye consisting of ferrocene units (donors) and a benzothiadiazole unit (acceptor) was synthesized to use the photosensitizer for hydrogen evolution reactionExpand
Construction of Zn0.5Cd0.5S nanosheets and the hybridization with onion-like carbon for enhanced photocatalytic hydrogen production
  • Tao Liu, Qi Li, +4 authors Xina Wang
  • Materials Science
  • 2020
Abstract ZnCdS alloy is an attractive photocatalyst for hydrogen generation because of the tunable band gap and high photostability. However, the nanosheet construction and further hybridization withExpand
Incorporating a TiOx shell in single-walled carbon nanotube/fullerodendron coaxial nanowires: increasing the photocatalytic evolution of H2 from water under irradiation with visible light
A custom-tailored single-walled carbon nanotube (SWCNT) photocatalyst with an electron-extracting TiOx shell, i.e., a SWCNT/fullerodendron/TiOx coaxial nanowire, has been fabricated. Due to theExpand
Photoinduced electron transfer from carbon nanotubes to fullerenes: C60versus C70.
It is found that with low E11 excitation, electron transfer takes place from CNT65 to C60 and C70 in both heterojunctions, which is consistent with recent experiments and could be useful to guide the design of excellent interfaces of mixed-dimensional hybrid carbon materials for various optoelectronic applications. Expand
Selective growth of chirality-enriched semiconducting carbon nanotubes by using bimetallic catalysts from salt precursors.
Using salts as precursors to prepare tungsten-cobalt bimetallic catalysts is flexible and convenient and offers an efficient pathway for the large-scale preparation of chirality enriched semiconducting SWNTs. Expand
Efficient hydrogen generation over a novel Ni phyllosilicate photocatalyst
Abstract Nickel phyllosilicate (NiPS) materials (made from 5, 10 Ni wt.% on SiO2; 5NiPS and 10NiPS) were prepared by a hydrothermal method. The obtained materials were characterized by XRD, TEM,Expand
Photoreforming driven by indium hydroxide/oxide nano-objects
Abstract In(OH)3/In2O3 nano-objects (plates and tubes) were prepared under controlled mild reaction conditions by simple basic thermal hydrolysis of 1-(2-methoxy-ethyl)-3-methyl imidazoliumExpand


Highly Asymmetric Phthalocyanine as a Sensitizer of Graphitic Carbon Nitride for Extremely Efficient Photocatalytic H2 Production under Near-Infrared Light
Highly asymmetric zinc phthalocyanine derivative (Zn-tri-PcNc) with intense near-IR light (650–800 nm) absorption is utilized as a sensitizer to extend the spectral response region of graphiticExpand
Spectroscopic Characterization of Nanohybrids Consisting of Single-walled Carbon Nanotubes and Fullerodendron
Hydrogen gas, which can be used in fuel cells to generate electricity, is considered the ultimate clean energy source. Recently, it was reported that a photo-induced electron transfer systemExpand
Photocatalytic hydrogen evolution on dye-sensitized mesoporous carbon nitride photocatalyst with magnesium phthalocyanine.
Spectral sensitization of a mesoporous graphite carbon nitride photocatalyst was investigated by depositing magnesium phthalocyanine to expand the absorption to wavelengths longer than those of the principal mpg-C(3)N(4), and the obtained action spectra of hydrogen evolution confirm that the introduced MgPc functioned as a photocatalytic sensitizer. Expand
Carbon Nanotube Chirality Determines Efficiency of Electron Transfer to Fullerene in All-Carbon Photovoltaics
Nanocarbon-based photovoltaics offer a promising new architecture for the next generation of solar cells. We demonstrate that a key factor determining the efficiency of single-walled carbon nanotubeExpand
Probing the Diameter Limit of Single Walled Carbon Nanotubes in SWCNT: Fullerene Solar Cells
In this work, for the first time, the diameter limit of surfactant wrapped single walled carbon nanotubes (SWCNTs) in SWCNT:C60 solar cells is determined through preparation of monochiral small andExpand
Recent advances in visible-light-responsive photocatalysts for hydrogen production and solar energy conversion--from semiconducting TiO2 to MOF/PCP photocatalysts.
The present perspective describes recent advances in visible-light-responsive photocatalysts intended to develop novel and efficient solar energy conversion technologies, including water splittingExpand
Recent advances in semiconductors for photocatalytic and photoelectrochemical water splitting.
This introductory review covers the fundamental aspects of photocatalytic and photoelectrochemical water splitting and recent advances in the water splitting reaction under visible light will be presented with a focus on non-oxide semiconductor materials to give an overview of the various problems and solutions. Expand
Aggregation-Dependent Photoluminescence Sidebands in Single-Walled Carbon Nanotube
Aggregation of single-walled carbon nanotubes (SWCNTs) is one of the major obstacles for many nanotube fundamental studies and practical applications, such as nanocomposites, electronic devices,Expand
Visible light water splitting using dye-sensitized oxide semiconductors.
The approach to two problems in solar water splitting are described: the organization of molecules into assemblies that promote long-lived charge separation, and catalysis of the electrolysis reactions, in particular the four-electron oxidation of water. Expand
Photosensitized hydrogen evolution from water using single-walled carbon nanotube/fullerodendron/Pt(II) coaxial nanohybrids
Direct incorporation of a Pt(II) complex into the shell of SWCNT/fullerodendron coaxial nanohybrids produces a new coaxial nanowire, SWCNT/fullerodendron/Pt(II), that shows efficient photocatalyticExpand