Hydrothermal synthesis of nanocubes of sillenite type compounds for photovoltaic applications and solar energy conversion of carbon dioxide to fuels

Subramanian, Vaidyanathan; Murugesan, Sankaran

Title: Hydrothermal synthesis of nanocubes of sillenite type compounds for photovoltaic applications and solar energy conversion of carbon dioxide to fuels

Abstract

The present invention relates to formation of nanocubes of sillenite type compounds, such as bismuth titanate, i.e., Bi.sub.12TiO.sub.20, nanocubes, via a hydrothermal synthesis process, with the resulting compound(s) having multifunctional properties such as being useful in solar energy conversion, environmental remediation, and/or energy storage, for example. In one embodiment, a hydrothermal method is disclosed that transforms nanoparticles of TiO.sub.2 to bismuth titanate, i.e., Bi.sub.12TiO.sub.20, nanocubes, optionally loaded with palladium nanoparticles. The method includes reacting titanium dioxide nanotubes with a bismuth salt in an acidic bath at a temperature sufficient and for a time sufficient to form bismuth titanate crystals, which are subsequently annealed to form bismuth titanate nanocubes. After annealing, the bismuth titanate nanocubes may be optionally loaded with nano-sized metal particles, e.g., nanosized palladium particles.

Inventors:: Subramanian, Vaidyanathan; Murugesan, Sankaran

Publication Date:: Tue Apr 29 00:00:00 EDT 2014

Research Org.:: Univ. of Nevada, Reno, NV (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1130072

Patent Number(s):: 8,709,304

Application Number:: 12/967,922

Assignee:: Board of Regents of the Nevada System of Higher Education, on behalf of the University of Nevada (Reno, NV)

DOE Contract Number:: EE0000272

Resource Type:: Patent

Resource Relation:: Patent File Date: 2010 Dec 14

Country of Publication:: United States

Language:: English

Subject:: 14 SOLAR ENERGY

Citation Formats


                    Subramanian, Vaidyanathan, and Murugesan, Sankaran. Hydrothermal synthesis of nanocubes of sillenite type compounds for photovoltaic applications and solar energy conversion of carbon dioxide to fuels.  United States: N. p., 2014. 
        Web.

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                    Subramanian, Vaidyanathan, & Murugesan, Sankaran. Hydrothermal synthesis of nanocubes of sillenite type compounds for photovoltaic applications and solar energy conversion of carbon dioxide to fuels.  United States.

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                    Subramanian, Vaidyanathan, and Murugesan, Sankaran. 2014.  
        "Hydrothermal synthesis of nanocubes of sillenite type compounds for photovoltaic applications and solar energy conversion of carbon dioxide to fuels".  United States.  https://www.osti.gov/servlets/purl/1130072.

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@article{osti_1130072,

  title        = {Hydrothermal synthesis of nanocubes of sillenite type compounds for photovoltaic applications and solar energy conversion of carbon dioxide to fuels},

  author       = {Subramanian, Vaidyanathan and Murugesan, Sankaran},

  abstractNote = {The present invention relates to formation of nanocubes of sillenite type compounds, such as bismuth titanate, i.e., Bi.sub.12TiO.sub.20, nanocubes, via a hydrothermal synthesis process, with the resulting compound(s) having multifunctional properties such as being useful in solar energy conversion, environmental remediation, and/or energy storage, for example. In one embodiment, a hydrothermal method is disclosed that transforms nanoparticles of TiO.sub.2 to bismuth titanate, i.e., Bi.sub.12TiO.sub.20, nanocubes, optionally loaded with palladium nanoparticles. The method includes reacting titanium dioxide nanotubes with a bismuth salt in an acidic bath at a temperature sufficient and for a time sufficient to form bismuth titanate crystals, which are subsequently annealed to form bismuth titanate nanocubes. After annealing, the bismuth titanate nanocubes may be optionally loaded with nano-sized metal particles, e.g., nanosized palladium particles.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/1130072},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Apr 29 00:00:00 EDT 2014},

  month        = {Tue Apr 29 00:00:00 EDT 2014}

}

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Title: Hydrothermal synthesis of nanocubes of sillenite type compounds for photovoltaic applications and solar energy conversion of carbon dioxide to fuels

Abstract

Citation Formats

Preparation and Characterization of Polycrystalline Bismuth Titanate Bi 12 TiO 20 and Its Photocatalytic Properties under Visible Light Irradiation journal, January 2007

Global climate change and terrestrial net primary production journal, May 1993

Non-energy use of fossil fuels and resulting carbon dioxide emissions: bottom–up estimates for the world as a whole and for major developing countries journal, April 2009

Photocatalytic reduction of CO2 with H2O on various titanium oxide catalysts journal, October 1995

An Approach to Ideal Semiconductor Electrodes for Efficient Photoelectrochemical Reduction of Carbon Dioxide by Modification with Small Metal Particles journal, February 1998

Photocatalytic Reduction of Carbon Dioxide on p-Type CaFe2O4 Powder journal, March 1994

Visible Light Photoreduction of CO 2 Using CdSe/Pt/TiO 2 Heterostructured Catalysts journal, November 2009

Effect of TiO2 particle size on the photocatalytic reduction of CO2 journal, July 2009

Application of surface photovoltage technique in photocatalysis studies on modified TiO2 photo-catalysts for photo-reduction of CO2 journal, April 2001

Effects of sol–gel procedures on the photocatalysis of Cu/TiO2 in CO2 photoreduction journal, January 2004

Shape-Enhanced Photocatalytic Activity of Single-Crystalline Anatase TiO 2 (101) Nanobelts journal, May 2010

Hydrothermal Synthesis of Bi 12 TiO 20 Nanostrucutures Using Anodized TiO 2 Nanotubes and Its Application in Photovoltaics journal, April 2010

Electrochemically assisted photocatalytic degradation of methyl orange using anodized titanium dioxide nanotubes journal, December 2008

Electrochemical approaches to alleviation of the problem of carbon dioxide accumulation journal, January 2001

Electrocatalytic Activity of Nanoporous Pt–Ir Materials toward Methanol Oxidation and Oxygen Reduction journal, January 2008

Kinetic study of formic acid oxidation on carbon-supported platinum electrocatalyst journal, August 2005

Influence of Bi Modification of Pt Anode Catalyst in Direct Formic Acid Fuel Cells journal, April 2006

Quantum Mechanical Modeling of CO 2 Interactions with Irradiated Stoichiometric and Oxygen-Deficient Anatase TiO 2 Surfaces: Implications for the Photocatalytic Reduction of CO 2 journal, October 2009

Formation of self-ordered nano-tubular structure of anodic oxide layer on titanium journal, October 2005

Direct formic acid fuel cells journal, September 2002

Photocatalytic property of bismuth titanate Bi12TiO20 crystals journal, March 2003

Isopropanol-assisted hydrothermal synthesis of bismuth titanate nanophotocatalysts journal, January 2006

Photocatalytic properties of bismuth titanate Bi12TiO20 prepared by co-precipitation processing journal, February 2007

Formation and Characterization of Self-Organized TiO 2 Nanotube Arrays by Pulse Anodization journal, January 2008

Improved Photocatalytic Degradation of Textile Dye Using Titanium Dioxide Nanotubes Formed Over Titanium Wires journal, May 2009

Fabrication of Highly Ordered TiO 2 Nanotube Arrays Using an Organic Electrolyte journal, August 2005

Preparation and Characterization of Polycrystalline Bismuth Titanate Bi ₁₂ TiO ₂₀ and Its Photocatalytic Properties under Visible Light Irradiation
journal, January 2007

Global climate change and terrestrial net primary production
journal, May 1993

Non-energy use of fossil fuels and resulting carbon dioxide emissions: bottom–up estimates for the world as a whole and for major developing countries
journal, April 2009

Photocatalytic reduction of CO₂ with H₂O on various titanium oxide catalysts
journal, October 1995

An Approach to Ideal Semiconductor Electrodes for Efficient Photoelectrochemical Reduction of Carbon Dioxide by Modification with Small Metal Particles
journal, February 1998

Photocatalytic Reduction of Carbon Dioxide on p-Type CaFe2O4 Powder
journal, March 1994

Visible Light Photoreduction of CO ₂ Using CdSe/Pt/TiO ₂ Heterostructured Catalysts
journal, November 2009

Effect of TiO₂ particle size on the photocatalytic reduction of CO₂
journal, July 2009

Application of surface photovoltage technique in photocatalysis studies on modified TiO₂ photo-catalysts for photo-reduction of CO₂
journal, April 2001

Effects of sol–gel procedures on the photocatalysis of Cu/TiO₂ in CO₂ photoreduction
journal, January 2004

Shape-Enhanced Photocatalytic Activity of Single-Crystalline Anatase TiO ₂ (101) Nanobelts
journal, May 2010

Hydrothermal Synthesis of Bi ₁₂ TiO ₂₀ Nanostrucutures Using Anodized TiO ₂ Nanotubes and Its Application in Photovoltaics
journal, April 2010

Electrochemically assisted photocatalytic degradation of methyl orange using anodized titanium dioxide nanotubes
journal, December 2008

Electrochemical approaches to alleviation of the problem of carbon dioxide accumulation
journal, January 2001

Electrocatalytic Activity of Nanoporous Pt–Ir Materials toward Methanol Oxidation and Oxygen Reduction
journal, January 2008

Kinetic study of formic acid oxidation on carbon-supported platinum electrocatalyst
journal, August 2005

Influence of Bi Modification of Pt Anode Catalyst in Direct Formic Acid Fuel Cells
journal, April 2006

Quantum Mechanical Modeling of CO ₂ Interactions with Irradiated Stoichiometric and Oxygen-Deficient Anatase TiO ₂ Surfaces: Implications for the Photocatalytic Reduction of CO ₂
journal, October 2009

Formation of self-ordered nano-tubular structure of anodic oxide layer on titanium
journal, October 2005

Direct formic acid fuel cells
journal, September 2002

Photocatalytic property of bismuth titanate Bi₁₂TiO₂₀ crystals
journal, March 2003

Isopropanol-assisted hydrothermal synthesis of bismuth titanate nanophotocatalysts
journal, January 2006

Photocatalytic properties of bismuth titanate Bi₁₂TiO₂₀ prepared by co-precipitation processing
journal, February 2007

Formation and Characterization of Self-Organized TiO ₂ Nanotube Arrays by Pulse Anodization
journal, January 2008

Improved Photocatalytic Degradation of Textile Dye Using Titanium Dioxide Nanotubes Formed Over Titanium Wires
journal, May 2009

Fabrication of Highly Ordered TiO ₂ Nanotube Arrays Using an Organic Electrolyte
journal, August 2005