Browsing by Author "Luong X, Duy"

Now showing 1 - 6 of 6
  • Thumbnail Image
    Item
    Flash joule heating synthesis method and compositions thereof
    (2024-08-06) Tour, James Mitchell; Luong X, Duy; Kittrell, Wilbur Carter; Chen, Weiyin; Rice University; United States Patent and Trademark Office
    Methods for the synthesis of graphene, and more particularly the method of synthesizing graphene by flash Joule heating (FJH). Such methods can be used to synthesize turbostratic graphene (including low-defect turbostratic graphene) in bulk quantities. Such methods can further be used to synthesize composite materials and 2D materials.
  • Thumbnail Image
    Item
    Laser-induced graphene (LIG) and laser induced graphene scrolls (LIGS) materials
    (2021-05-25) Tour, James M.; Luong X, Duy; Subramanian, Ajay; Rice University; United States Patent and Trademark Office
    Laser-induced graphene (LIG) and laser-induced graphene scrolls (LIGS) materials and, more particularly to LIGS, methods of making LIGS (such as from polyimide (PI)), laser-induced removal of LIG and LIGS, and 3D printing of LIG and LIGS using a laminated object manufacturing (LOM) process.
  • Thumbnail Image
    Item
    Laser-induced graphene sensors and methods of making and using same
    (2025-02-18) Tour, James Mitchell; Luong X, Duy; Yang, Kaichun; Arnusch, Christopher John; Singh, Swatantra Pratap; Thakur, Amit Kumar; Stanford, Michael G.; Li, John T.; Presutti, Steven E.; Rice University; B.G. NEGEV TECHNOLOGIES AND APPLICATIONS LTD., AT BEN-GURION UNIVERSITY; United States Patent and Trademark Office
    Gas sensors having laser-induced graphene (LIG) and/or LIG composites, and methods of making and using gas sensors having LIG and/or LIG composites.
  • Thumbnail Image
    Item
    Method for printing objects having laser-induced graphene (LIG) and/or laser-induced graphene scrolls (LIGS) materials
    (2023-11-07) Tour, James M.; Luong X, Duy; Subramanian, Ajay; William Marsh Rice University; United States Patent and Trademark Office
    Laser-induced graphene (LIG) and laser-induced graphene scrolls (LIGS) materials and, more particularly to LIGS, methods of making LIGS (such as from polyimide (PI)), laser-induced removal of LIG and LIGS, and 3D printing of LIG and LIGS using a laminated object manufacturing (LOM) process.
  • Thumbnail Image
    Item
    Methods of fabricating laser-induced graphene and compositions thereof
    (2021-11-02) Tour, James M.; Chyan, Yieu; Arnusch, Christopher John; Singh, Swatantra Pratap; Li, Yilun; Luong X, Duy; Kittrell, Carter; Ye, Ruquan; Miller, Jordan; Kinstlinger, Ian; Cofer, Savannah; Rice University; Ben-Gurion University; United States Patent and Trademark Office
    Methods that expand the properties of laser-induced graphene (LIG) and the resulting LIG having the expanded properties. Methods of fabricating laser-induced graphene from materials, which range from natural, renewable precursors (such as cloth or paper) to high performance polymers (like Kevlar). With multiple lasing, however, highly conductive PEI-based LIG could be obtained using both multiple pass and defocus methods. The resulting laser-induced graphene can be used, inter alia, in electronic devices, as antifouling surfaces, in water treatment technology, in membranes, and in electronics on paper and food Such methods include fabrication of LIG in controlled atmospheres, such that, for example, superhydrophobic and superhydrophilic LIG surfaces can be obtained. Such methods further include fabricating laser-induced graphene by multiple lasing of carbon precursors. Such methods further include direct 3D printing of graphene materials from carbon precursors. Application of such LIG include oil/water separation, liquid or gas separations using polymer membranes, anti-icing, microsupercapacitors, supercapacitors, water splitting catalysts, sensors, and flexible electronics.
  • Thumbnail Image
    Item
    Methods of fabricating laser-induced graphene and compositions thereof
    (2024-06-18) Tour, James M.; Chyan, Yieu; Arnusch, Christopher John; Singh, Swatantra Pratap; Li, Yilun; Luong X, Duy; Kittrell, Carter; Ye, Ruquan; Miller, Jordan; Kinstlinger, Ian; Cofer, Savannah; Rice University; B.G. Negev Technologies and Applications Ltd. at Ben-Gurion University; United States Patent and Trademark Office
    Methods that expand the properties of laser-induced graphene (LIG) and the resulting LIG having the expanded properties. Methods of fabricating laser-induced graphene from materials, which range from natural, renewable precursors (such as cloth or paper) to high performance polymers (like Kevlar). With multiple lasing, however, highly conductive PEI-based LIG could be obtained using both multiple pass and defocus methods. The resulting laser-induced graphene can be used, inter alia, in electronic devices, as antifouling surfaces, in water treatment technology, in membranes, and in electronics on paper and food Such methods include fabrication of LIG in controlled atmospheres, such that, for example, superhydrophobic and superhydrophilic LIG surfaces can be obtained. Such methods further include fabricating laser-induced graphene by multiple lasing of carbon precursors. Such methods further include direct 3D printing of graphene materials from carbon precurors. Application of such LIG include oil/water separation, liquid or gas separations using polymer membranes, anti-icing, microsupercapacitors, supercapacitors, water splitting catalysts, sensors, and flexible electronics.