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Yu H, Ding Y, Wang P, Nguyen Q, Xia Y, Qin D. Facile Synthesis of Ru Nanoboxes with a Hexagonal Close-Packed Structure by Templating with Ag Nanocubes and Their Catalytic Properties. Chemistry 2023; 29:e202302603. [PMID: 37718276 DOI: 10.1002/chem.202302603] [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: 08/09/2023] [Revised: 09/13/2023] [Accepted: 09/14/2023] [Indexed: 09/19/2023]
Abstract
Noble-metal nanoboxes offer an attractive form of nanomaterials for catalytic applications owing to their open structure and highly efficient use of atoms. Herein, we report the facile synthesis of Ag-Ru core-shell nanocubes and then Ru nanoboxes with a hexagonal close-packed (hcp) structure, as well as evaluation of their catalytic activity toward a model hydrogenation reaction. By adding a solution of Ru(acac)3 in ethylene glycol (EG) dropwise to a suspension of silver nanocubes in EG at 170 °C, Ru atoms are generated and deposited onto the entire surface of a nanocube. As the volume of the RuIII precursor is increased, Ru atoms are also produced through a galvanic replacement reaction, generating Ag-Ru nanocubes with a hollow interior. The released Ag+ ions are then reduced by EG and deposited back onto the nanocubes. By selectively etching away the remaining Ag with aqueous HNO3 , the as-obtained Ag-Ru nanocubes are transformed into Ru nanoboxes, whose walls are characterized by an hcp structure and an ultrathin thickness of a few nanometers. Finally, we evaluated the catalytic properties of the Ru nanoboxes with two different wall thicknesses by using a model hydrogenation reaction; both samples showed excellent performance.
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Affiliation(s)
- Hansong Yu
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia, 30332, USA
| | - Yong Ding
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia, 30332, USA
| | - Peng Wang
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia, 30332, USA
- School of Materials Science and Engineering, Shandong University of Technology, Zibo, Shandong, 255000, P. R. China
| | - Quynh Nguyen
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia, 30332, USA
| | - Younan Xia
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia, 30332, USA
| | - Dong Qin
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia, 30332, USA
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Frisch M, Ye M, Hamid Raza M, Arinchtein A, Bernsmeier D, Gomer A, Bredow T, Pinna N, Kraehnert R. Mesoporous WC x Films with NiO-Protected Surface: Highly Active Electrocatalysts for the Alkaline Oxygen Evolution Reaction. CHEMSUSCHEM 2021; 14:4708-4717. [PMID: 34498408 PMCID: PMC8596595 DOI: 10.1002/cssc.202101243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 08/11/2021] [Indexed: 06/13/2023]
Abstract
Metal carbides are promising materials for electrocatalytic reactions such as water electrolysis. However, for application in catalysis for the oxygen evolution reaction (OER), protection against oxidative corrosion, a high surface area with facile electrolyte access, and control over the exposed active surface sites are highly desirable. This study concerns a new method for the synthesis of porous tungsten carbide films with template-controlled porosity that are surface-modified with thin layers of nickel oxide (NiO) to obtain active and stable OER catalysts. The method relies on the synthesis of soft-templated mesoporous tungsten oxide (mp. WOx ) films, a pseudomorphic transformation into mesoporous tungsten carbide (mp. WCx ), and a subsequent shape-conformal deposition of finely dispersed NiO species by atomic layer deposition (ALD). As theoretically predicted by density functional theory (DFT) calculations, the highly conductive carbide support promotes the conversion of Ni2+ into Ni3+ , leading to remarkably improved utilization of OER-active sites in alkaline medium. The obtained Ni mass-specific activity is about 280 times that of mesoporous NiOx (mp. NiOx ) films. The NiO-coated WCx catalyst achieves an outstanding mass-specific activity of 1989 A gNi -1 in a rotating-disc electrode (RDE) setup at 25 °C using 0.1 m KOH as the electrolyte.
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Affiliation(s)
- Marvin Frisch
- Department of ChemistryTechnische Universität BerlinStrasse des 17. Juni 12410623BerlinGermany
| | - Meng‐Yang Ye
- Department of ChemistryTechnische Universität BerlinStrasse des 17. Juni 12410623BerlinGermany
| | - Muhammad Hamid Raza
- Institut für Chemie und IRIS AdlershofHumboldt-Universität zu BerlinBrook-Taylor-Strasse 212489BerlinGermany
| | - Aleks Arinchtein
- Department of ChemistryTechnische Universität BerlinStrasse des 17. Juni 12410623BerlinGermany
| | - Denis Bernsmeier
- Department of ChemistryTechnische Universität BerlinStrasse des 17. Juni 12410623BerlinGermany
| | - Anna Gomer
- Mulliken Center for Theoretical ChemistryUniversität BonnBeringstrasse 453115BonnGermany
| | - Thomas Bredow
- Mulliken Center for Theoretical ChemistryUniversität BonnBeringstrasse 453115BonnGermany
| | - Nicola Pinna
- Institut für Chemie und IRIS AdlershofHumboldt-Universität zu BerlinBrook-Taylor-Strasse 212489BerlinGermany
| | - Ralph Kraehnert
- Department of ChemistryTechnische Universität BerlinStrasse des 17. Juni 12410623BerlinGermany
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Pang L, Miao Y, Bhange SN, Barras A, Addad A, Roussel P, Amin MA, Kurungot S, Szunerits S, Boukherroub R. Enhanced electrocatalytic activity of PtRu/nitrogen and sulphur co-doped crumbled graphene in acid and alkaline media. J Colloid Interface Sci 2021; 590:154-163. [PMID: 33524716 DOI: 10.1016/j.jcis.2021.01.049] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 01/12/2021] [Accepted: 01/17/2021] [Indexed: 12/30/2022]
Abstract
The low mass activity and high price of pure platinum (Pt)-based catalysts predominantly limit their large-scale utilization in electrocatalysis. Therefore, the reduction of Pt amount while preserving the electrocatalytic efficiency represents a viable alternative. In this work, we prepared new PtRu2 nanoparticles supported on sulphur and nitrogen co-doped crumbled graphene with trace amounts of iron (PtRu2/PF) electrocatalysts. The PtRu2/PF catalysts exhibited enhanced electrocatalytic performance and stability for the hydrogen evolution reaction (HER) at pH = 0. Moreover, the prepared PtRu2/PF electrocatalyst displayed higher HER activity than commercial 20% Pt/C. The PtRu2/PF catalyst achieved a current density of 10 mA cm-2 at an overpotential value of only 22 mV for HER, performing better activity than many other Pt-based electrocatalysts. Besides, the PtRu2/PF revealed a good performance for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in alkaline media. The PtRu2/PF catalyst recorded a current density of 10 mA cm-2 at an overpotential of only 270 mV for OER in KOH (1.0 M) solution and an onset potential of 0.96 V vs. RHE (at 1 mA cm-2) for ORR in KOH (0.1 M) solution.
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Affiliation(s)
- Liuqing Pang
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520, IEMN, F-59000 Lille, France
| | - Yuanyuan Miao
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520, IEMN, F-59000 Lille, France
| | - Siddheshwar N Bhange
- Physical & Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune, Maharashtra, India
| | - Alexandre Barras
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520, IEMN, F-59000 Lille, France
| | - Ahmed Addad
- Univ. Lille, CNRS, UMR 8207 - UMET, F-59000 Lille, France
| | - Pascal Roussel
- Univ. Lille, CNRS, ENSCL, Centrale Lille, Univ. Artois, UMR8181, UCCS-Unité de Catalyse et Chimie du Solide, Lille F-59000, France
| | - Mohammed A Amin
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia; Department of Chemistry, Faculty of Science, Ain Shams University, 11566 Abbassia, Cairo, Egypt.
| | - Sreekumar Kurungot
- Physical & Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune, Maharashtra, India
| | - Sabine Szunerits
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520, IEMN, F-59000 Lille, France
| | - Rabah Boukherroub
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520, IEMN, F-59000 Lille, France.
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Zheng X, Li L, Deng M, Li J, Ding W, Nie Y, Wei Z. Understanding the effect of interfacial interaction on metal/metal oxide electrocatalysts for hydrogen evolution and hydrogen oxidation reactions on the basis of first-principles calculations. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00960a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Interfacial M–O and M–TM interactions of M/TMO contribute differently to the surface properties and HER/HOR pathway.
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Affiliation(s)
- Xingqun Zheng
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization
- Chongqing Key Laboratory of Theoretical and Computational Chemistry
- School of Chemistry and Chemical Engineering
- Chongqing University
| | - Li Li
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization
- Chongqing Key Laboratory of Theoretical and Computational Chemistry
- School of Chemistry and Chemical Engineering
- Chongqing University
| | - Mingming Deng
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization
- Chongqing Key Laboratory of Theoretical and Computational Chemistry
- School of Chemistry and Chemical Engineering
- Chongqing University
| | - Jing Li
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization
- Chongqing Key Laboratory of Theoretical and Computational Chemistry
- School of Chemistry and Chemical Engineering
- Chongqing University
| | - Wei Ding
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization
- Chongqing Key Laboratory of Theoretical and Computational Chemistry
- School of Chemistry and Chemical Engineering
- Chongqing University
| | - Yao Nie
- Chongqing Key Laboratory of Green Synthesis and Applications
- College of Chemistry
- Chongqing Normal University
- Chongqing 401331
- China
| | - Zidong Wei
- The State Key Laboratory of Power Transmission Equipment & System Security and New Technology
- Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization
- Chongqing Key Laboratory of Theoretical and Computational Chemistry
- School of Chemistry and Chemical Engineering
- Chongqing University
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