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Wang K, He S, Zhang B, Cao Z, Zhou T, He J, Chu G. Self-Supported 3D PtPdCu Nanowires Networks for Superior Glucose Electro-Oxidation Performance. Molecules 2023; 28:5834. [PMID: 37570804 PMCID: PMC10421379 DOI: 10.3390/molecules28155834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 07/05/2023] [Accepted: 07/20/2023] [Indexed: 08/13/2023] Open
Abstract
The development of non-enzymatic and highly active electrocatalysts for glucose oxidation with excellent durability for blood glucose sensors has aroused widespread concern. In this work, we report a fast, simple, and low-cost NaBH4 reduction method for preparing ultrafine ternary PtPdCu alloy nanowires (NWs) with a 3D network nanostructure. The PtPdCu NWs catalyst presents significant efficiency for glucose oxidation-reduction (GOR), reaching an oxidative peak-specific activity of 0.69 mA/cm2, 2.6 times that of the Pt/C catalyst (0.27 mA/cm2). Further reaction mechanism investigations show that the NWs have better conductivity and smaller electron transfer resistance. Density functional theory (DFT) calculations reveal that the alloying effect of PtPdCu could effectively enhance the adsorption energy of glucose and reduce the activation energy of GOR. The obtained NWs also show excellent stability over 3600 s through a chronoamperometry test. These self-supported ultrafine PtPdCu NWs with 3D networks provide a new functional material for building blood glucose sensors and direct glucose fuel cells.
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Affiliation(s)
- Kaili Wang
- Laboratory of Xinjiang Native Medicinal and Edible Plant Resources Chemistry, Kashi University, Kashi 844008, China; (K.W.); (B.Z.)
- College Chemistry & Chemistry Engineering, Weifang University, Weifang 261061, China; (Z.C.); (T.Z.)
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Shuang He
- Department of Nephrology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China;
| | - Bowen Zhang
- Laboratory of Xinjiang Native Medicinal and Edible Plant Resources Chemistry, Kashi University, Kashi 844008, China; (K.W.); (B.Z.)
| | - Zhen Cao
- College Chemistry & Chemistry Engineering, Weifang University, Weifang 261061, China; (Z.C.); (T.Z.)
| | - Tingting Zhou
- College Chemistry & Chemistry Engineering, Weifang University, Weifang 261061, China; (Z.C.); (T.Z.)
| | - Jia He
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Ganghui Chu
- Laboratory of Xinjiang Native Medicinal and Edible Plant Resources Chemistry, Kashi University, Kashi 844008, China; (K.W.); (B.Z.)
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Wang Z, Wang H. Phase-Controlled Ruthenium Nanocrystals on Colloidal Polydopamine Supports and Their Catalytic Behaviors in Aerobic Oxidation Reactions. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37486213 DOI: 10.1021/acsami.3c06654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
The past decade has witnessed rapidly growing interest in noble metal nanostructures adopting unconventional metastable crystal phases. In the case of Ru, chemically synthesized nanocrystals typically form thermodynamically favored hexagonal close-packed (hcp) crystal lattices, whereas it remains significantly more challenging to synthesize Ru nanocrystals in the metastable face-centered cubic (fcc) phase. In this work, we have synthesized polydopamine (PDA)-supported hcp and fcc Ru nanocrystals in a phase-selective manner through one-pot thermal reduction of appropriate Ru(III) precursors in a polyol solvent. Benefiting from the unique surface-adhesion function of PDA, we have been able to grow phase-controlled sub-5 nm Ru nanocrystals directly on colloidal PDA supports without prefunctionalizing the particle surfaces with any molecular linkers or surface-capping ligands. Success in phase-controlled synthesis of capping ligand-free Ru nanocrystals dispersed on the same support material enables us to systematically compare the intrinsic mass-specific and surface-specific activities of fcc and hcp Ru nanocatalysts toward the aerobic oxidation of a chromogenic molecular substrate, 3,3',5,5'-tetramethylbenzidine (TMB), under a broad range of reaction conditions. We use UV-vis absorption spectroscopy to monitor the conversion of the reactant molecules into the one-electron and two-electron oxidation products in real time during Ru-catalyzed oxidation of TMB, which is found to be a mechanistically complex molecule-transforming process involving multiple elementary steps. The apparent reaction rates and detailed kinetic features are observed to be not only intimately related to the crystalline structures of the Ru nanocatalysts but also profoundly influenced by several other critical factors, such as the pH of the reaction medium, the initial concentration of TMB, Ru coverage on the PDA supports, and degree of nanoparticle aggregation.
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Affiliation(s)
- Zixin Wang
- Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, South Carolina 29208, United States
| | - Hui Wang
- Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, South Carolina 29208, United States
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Wang Z, Wang W, Wamsley M, Zhang D, Wang H. Colloidal Polydopamine Beads: A Photothermally Active Support for Noble Metal Nanocatalysts. ACS APPLIED MATERIALS & INTERFACES 2022; 14:17560-17569. [PMID: 35380793 DOI: 10.1021/acsami.2c03183] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Polydopamine (PDA) is a unique bioinspired synthetic polymer that integrates broadband light absorption, efficient photothermal transduction, and versatile surface-adhesion functions in a single material entity. Here, we utilize colloidal PDA beads in the submicron particle size regime as an easily processable and photothermally active support for sub-10 nm Pd nanocatalysts to construct a multifunctional material system that allows us to kinetically boost thermal catalytic reactions through visible and near-infrared light illuminations. Choosing the Pd-catalyzed nitrophenol reduction by ammonium formate as a model transfer hydrogenation reaction exhibiting temperature-dependent reaction rates, we demonstrate that interfacial molecule-transforming processes on metal nanocatalyst surfaces can be kinetically modulated by harnessing the thermal energy produced through photothermal transduction in the PDA supports.
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Affiliation(s)
- Zixin Wang
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Wei Wang
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Max Wamsley
- Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762, United States
| | - Dongmao Zhang
- Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762, United States
| | - Hui Wang
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
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Wang W, Wang Z, Sun M, Zhang H, Wang H. Ligand-free sub-5 nm platinum nanocatalysts on polydopamine supports: size-controlled synthesis and size-dictated reaction pathway selection. NANOSCALE 2022; 14:5743-5750. [PMID: 35348174 DOI: 10.1039/d2nr00805j] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Noble metal nanoparticles exhibit intriguing size-dependent catalytic activities toward a plethora of important chemical reactions. A particularly interesting but rarely explored scenario is that some catalytic molecule-transforming processes may even inter-switch among multiple reaction pathways when the dimensions of a metal nanocatalyst are deliberately tuned within specific size windows. Here, we take full advantage of the adhesive surface properties of polydopamine to kinetically maneuver the surface-mediated nucleation and growth of Pt nanocrystals, which enables us to synthesize polydopamine-supported sub-5 nm Pt nanocatalysts with precisely tunable particle sizes, narrow size distributions, ligand-free clean surfaces, and uniform dispersion over the supports. The success in precisely tuning the particle size of ligand-free Pt nanocatalysts within the sub-5 nm size window provides unique opportunities for us to gain detailed, quantitative insights concerning the intrinsic particle size effects on the pathway selection of catalytic molecular transformations. As exemplified by Pt-catalyzed nitrophenol reduction by ammonia borane, catalytic transfer hydrogenation reactions may inter-switch between two fundamentally distinct bimolecular reaction pathways, specifically the Langmuir-Hinshelwood and the Eley-Rideal mechanisms, as the size of the Pt nanocatalysts varies in the sub-5 nm regime.
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Affiliation(s)
- Wei Wang
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA.
| | - Zixin Wang
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA.
| | - Mengqi Sun
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA.
| | - Hui Zhang
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA.
| | - Hui Wang
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA.
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Wen X, Yin S, Yin H, Ding Y. A displacement dealloying route to dilute nanoporous PtAu alloys for highly active formic acid electro-oxidation. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.137884] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Yuan M, Xu H, Wang Y, Jin L, Wang C, Chen C, Wang Y, Shang H, Du Y. Three‐Dimensional PdCuRu Alloy Porous Nanosheets as Efficient Electrocatalysts for Hydrogen Evolution Reaction in Varied Electrolytes. ChemElectroChem 2020. [DOI: 10.1002/celc.202000764] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Mengyu Yuan
- College of Chemistry, Chemical Engineering and Materials ScienceSoochow University Suzhou 215123 P.R. China
| | - Hui Xu
- College of Chemistry, Chemical Engineering and Materials ScienceSoochow University Suzhou 215123 P.R. China
| | - Yuan Wang
- College of Chemistry, Chemical Engineering and Materials ScienceSoochow University Suzhou 215123 P.R. China
| | - Liujun Jin
- College of Chemistry, Chemical Engineering and Materials ScienceSoochow University Suzhou 215123 P.R. China
| | - Cheng Wang
- College of Chemistry, Chemical Engineering and Materials ScienceSoochow University Suzhou 215123 P.R. China
| | - Chunyan Chen
- College of Chemistry, Chemical Engineering and Materials ScienceSoochow University Suzhou 215123 P.R. China
| | - Yong Wang
- College of Chemistry, Chemical Engineering and Materials ScienceSoochow University Suzhou 215123 P.R. China
| | - Hongyuan Shang
- College of Chemistry, Chemical Engineering and Materials ScienceSoochow University Suzhou 215123 P.R. China
| | - Yukou Du
- College of Chemistry, Chemical Engineering and Materials ScienceSoochow University Suzhou 215123 P.R. China
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