title: Novel porous gold-palladium nanoalloy network-supported graphene as an advanced catalyst for non-enzymatic hydrogen peroxide sensing.
abstract: In an effort to develop electrocatalysts associated with effective design, testing, and fabrication, novel porous gold-palladium nanoalloy network-supported graphene (AuPd@GR) nanohybrids were successfully synthesized via electroless deposition followed by a chemical vapor deposition (CVD) method for the first time. The AuPd@GR nanohybrids were obtained as a continuous, porous, transparent, bendable, and ultrathin film with good assembly of the AuPd nanoalloy particles (<10nm) within the GR. The AuPd@GR nanohybrids exhibited excellent catalytic activity towards H2O2 detection with a wide detection range (5μM-11.5mM), high sensitivity (186.86μAmM(-1)cm(-2)), low limit of detection (1μM), fast response (3s), and long-term working stability (2500s). Furthermore, the AuPd@GR nanohybrids demonstrated outstanding durability, along with negligible interference from ascorbic acid, dopamine, uric acid, urea, potassium ions, chloride ions, and glucose. These findings open a new pathway to fabricate electrocatalysts for application in high performance electrochemical sensors and bioelectronics.
authors.affiliation: Advanced Materials Institute of BIN Convergence Technology (BK21 plus Global) & Dept. of BIN Convergence Technology, Chonbuk National University, Jeonju, Jeonbuk 54896, Republic of Korea.
authors.forename: Tran Duy
authors.initials: TD
authors.lastname: Thanh
authors.affiliation: Advanced Materials Institute of BIN Convergence Technology (BK21 plus Global) & Dept. of BIN Convergence Technology, Chonbuk National University, Jeonju, Jeonbuk 54896, Republic of Korea; Carbon Composite Research Centre, Department of Polymer & Nanoscience and Technology, Chonbuk National University, Jeonju, Jeonbuk 54896, Republic of Korea.
authors.forename: Jayaraman
authors.initials: J
authors.lastname: Balamurugan
authors.affiliation: Advanced Materials Institute of BIN Convergence Technology (BK21 plus Global) & Dept. of BIN Convergence Technology, Chonbuk National University, Jeonju, Jeonbuk 54896, Republic of Korea.
authors.forename: Seung Hee
authors.initials: SH
authors.lastname: Lee
authors.affiliation: Advanced Materials Institute of BIN Convergence Technology (BK21 plus Global) & Dept. of BIN Convergence Technology, Chonbuk National University, Jeonju, Jeonbuk 54896, Republic of Korea.
authors.forename: Nam Hoon
authors.initials: NH
authors.lastname: Kim
authors.affiliation: Advanced Materials Institute of BIN Convergence Technology (BK21 plus Global) & Dept. of BIN Convergence Technology, Chonbuk National University, Jeonju, Jeonbuk 54896, Republic of Korea; Carbon Composite Research Centre, Department of Polymer & Nanoscience and Technology, Chonbuk National University, Jeonju, Jeonbuk 54896, Republic of Korea. Electronic address: jhl@chonbuk.ac.kr.
authors.forename: Joong Hee
authors.initials: JH
authors.lastname: Lee
mesh_terms: D000497:Alloys / Q000737:chemistry; D015374:Biosensing Techniques / Q000379:methods; D002384:Catalysis; D055664:Electrochemical Techniques / Q000379:methods*; D004566:Electrodes; D006046:Gold / Q000737:chemistry*; D006108:Graphite / Q000737:chemistry*; D006801:Humans; D006861:Hydrogen Peroxide / Q000032:analysis / Q000097:blood*; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure; D010165:Palladium / Q000737:chemistry*
chemical_list: D000497:Alloys; D010165:Palladium; D006046:Gold; D006108:Graphite; D006861:Hydrogen Peroxide
keywords: Chemical vapor deposition; Electrocatalyst; Gold-palladium nanoalloy; Graphene; Hydrogen peroxide sensors; Nanoporous network