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Thompson D, Hoffman AS, Mansley ZR, York S, Wang F, Zhu Y, Bare SR, Chen J. Synthesis of Amorphous and Various Phase-Pure Nanoparticles of Nickel Phosphide with Uniform Sizes via a Trioctylphosphine-Mediated Pathway. Inorg Chem 2024; 63:18981-18991. [PMID: 39328180 DOI: 10.1021/acs.inorgchem.4c03334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2024]
Abstract
Nickel phosphides are of particular interest because they are highly active and stable catalysts for petroleum/biorefinery and hydrogen production. Despite their significant catalytic potential, synthesizing various phase-pure nickel phosphide nanoparticles of uniform size remains a challenge. In this work, we develop a robust trioctylphosphine (TOP)-mediated route to make highly uniform phase-pure Ni12P5, Ni2P, and Ni5P4 nanoparticles. The synthetic route forms amorphous Ni70P30 nanoparticle intermediates. The reactions can be stopped at the amorphous stage when amorphous particles are desired. The amount of P incorporation can be controlled by varying the ratio of TOP to Ni(II). The mechanism for composition control involves the competition of the kinetics of two processes: the addition of the reduced Ni and the incorporation of P into Ni. Uniform Ni70P30 amorphous nanoparticles can be generated at a high TOP-to-Ni(II) ratio, where the P incorporation kinetics is made to dominate. Ni70P30 can later be transformed into phase-pure Ni12P5, Ni2P, and Ni5P4 nanocrystals of uniform size. The transformation can be controlled precisely by modulating the temperature. A UV-vis study coupled with theoretical modeling reveals Ni(0)-TOPx complexes along the synthetic path. This approach may be expanded to create other metal compounds, potentially enabling the synthesis of uniform nanoparticles of a greater variety.
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Affiliation(s)
- David Thompson
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas 72701, United States
| | - Adam S Hoffman
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Zachary R Mansley
- Interdisciplinary Science Department, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Sarah York
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas 72701, United States
| | - Feng Wang
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas 72701, United States
| | - Yimei Zhu
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Simon R Bare
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Jingyi Chen
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas 72701, United States
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Palazzolo A, Poucin C, Freitas AP, Ropp A, Bouillet C, Ersen O, Carenco S. The delicate balance of phase speciation in bimetallic nickel cobalt nanoparticles. NANOSCALE 2022; 14:7547-7560. [PMID: 35412546 DOI: 10.1039/d2nr00917j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Bimetallic nickel-cobalt nanoparticles are highly sought for their potential as catalytic and magnetic nanoparticles. These are typically prepared in organic solvents in the presence of strong stabilizing ligands such as tri-n-octylphosphine (TOP). Due to the variety of cobalt crystallographic phases and to the strong interaction of the ligands with the metallic surfaces, forming fcc nanoparticles rather than a phase mixture is a challenging endeavor. Here, using a two-step synthesis strategy that aims at a core-shell nickel-cobalt morphology, we demonstrated that many parameters have to be adjusted: concentration of the metal precursors, stoichiometry of TOP, and heating program from room temperature to 180 °C. We found optimized conditions to form size-controlled fcc NiCo nanoparticles from preformed Ni nanoparticles, and the phase attribution was confirmed with a combination of X-Ray diffraction on powder and X-Ray absorption spectroscopy at the Co K edge. We then investigated the early stages of Co nucleation on the nickel using a lower stoichiometry of Co, down to 0.05 equiv. vs. Ni. Using X-ray photoelectron spectroscopy and scanning transmission electron microscopy coupled to energy-dispersive X-Ray spectroscopy and electron energy loss spectroscopy, we showed that cobalt reacts first on the nickel nanoparticles but easily forms cobalt-rich larger aggregates in the further steps of the reaction.
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Affiliation(s)
- Alberto Palazzolo
- Sorbonne Université, CNRS, Collège de France, Laboratoire de Chimie de la Matière Condensée de Paris, 4 place Jussieu, 75005 Paris, France.
| | - Cyprien Poucin
- Sorbonne Université, CNRS, Collège de France, Laboratoire de Chimie de la Matière Condensée de Paris, 4 place Jussieu, 75005 Paris, France.
| | - Alexy P Freitas
- Sorbonne Université, CNRS, Collège de France, Laboratoire de Chimie de la Matière Condensée de Paris, 4 place Jussieu, 75005 Paris, France.
| | - Anthony Ropp
- Sorbonne Université, CNRS, Collège de France, Laboratoire de Chimie de la Matière Condensée de Paris, 4 place Jussieu, 75005 Paris, France.
| | - Corinne Bouillet
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504 CNRS-Université de Strasbourg, 23 rue du Loess, BP 43, Strasbourg Cedex 2, France
| | - Ovidiu Ersen
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504 CNRS-Université de Strasbourg, 23 rue du Loess, BP 43, Strasbourg Cedex 2, France
| | - Sophie Carenco
- Sorbonne Université, CNRS, Collège de France, Laboratoire de Chimie de la Matière Condensée de Paris, 4 place Jussieu, 75005 Paris, France.
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Geng Y, Lang M, Li G, Yin W, Yang Z, Li H. Hydrodeoxygenation of Vanillin over Ni2P/Zeolite Catalysts: Role of Surface Acid Density. Catal Letters 2022. [DOI: 10.1007/s10562-022-04021-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Lera IL, Khasnabis S, Wangatia LM, Femi OE, Ramamurthy PC. Insights into electrochemical behavior and kinetics of NiP on PEDOT:PSS/reduced graphene oxide as high-performance electrodes for alkaline urea oxidation. J Solid State Electrochem 2021. [DOI: 10.1007/s10008-021-05080-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Hu J, Cao X, Zhao X, Chen W, Lu GP, Dan Y, Chen Z. Catalytically Active Sites on Ni 5P 4 for Efficient Hydrogen Evolution Reaction From Atomic Scale Calculation. Front Chem 2019; 7:444. [PMID: 31263695 PMCID: PMC6590065 DOI: 10.3389/fchem.2019.00444] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 05/29/2019] [Indexed: 11/15/2022] Open
Abstract
Ni5P4 has received considerable attention recently as a potentially viable substitute for Pt as the cathode material for catalytic water splitting. The current investigation focuses on theoretical understandings of the characteristics of active sites toward water splitting using first-principle calculations. The results indicate that the activity of bridge NiNi sites is highly related on the bond number with neighbors. If the total bond number of NiNi is higher than 14, the sites will exhibit excellent HER performance. For the top P sites, the activity is greatly affected by the position of coplanar atoms besides the bond number. Data of bond length with neighbors can be used to predict the activity of P sites as reviewed by machine learning. Partial density of state (PDOS) analysis of different P sites illustrates that the activity of P sites should form the appropriate bond to localize some 3p orbits of the P atoms. Bond number and position of neighbors are two key parameters for the prediction of the HER activity. Based on the current work, most of the low-energy surfaces of Ni5P4 are active, indicating a good potential of this materials for hydrogen evolution reactions.
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Affiliation(s)
- Jun Hu
- School of Chemical Engineering, Northwest University, Xi'an, China.,School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Xiaofei Cao
- School of Chemical Engineering, Northwest University, Xi'an, China
| | - Xin Zhao
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Wei Chen
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou, China
| | - Guo-Ping Lu
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore.,School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, China
| | - Yong Dan
- School of Chemical Engineering, Northwest University, Xi'an, China
| | - Zhong Chen
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
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Ortuño MA, López N. Reaction mechanisms at the homogeneous–heterogeneous frontier: insights from first-principles studies on ligand-decorated metal nanoparticles. Catal Sci Technol 2019. [DOI: 10.1039/c9cy01351b] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The frontiers between homogeneous and heterogeneous catalysis are progressively disappearing.
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Affiliation(s)
- Manuel A. Ortuño
- Institute of Chemical Research of Catalonia (ICIQ)
- Barcelona Institute of Science and Technology (BIST)
- 43007 Tarragona
- Spain
| | - Núria López
- Institute of Chemical Research of Catalonia (ICIQ)
- Barcelona Institute of Science and Technology (BIST)
- 43007 Tarragona
- Spain
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Albani D, Karajovic K, Tata B, Li Q, Mitchell S, López N, Pérez‐Ramírez J. Ensemble Design in Nickel Phosphide Catalysts for Alkyne Semi‐Hydrogenation. ChemCatChem 2018. [DOI: 10.1002/cctc.201801430] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Davide Albani
- Department of Chemistry and Applied BiosciencesInstitute for Chemical and Bioengineering ETH Zurich Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
| | - Konstantin Karajovic
- The Barcelona Institute of Science and TechnologyInstitute of Chemical Research of Catalonia (ICIQ) Av. Països Catalans 16 43007 Tarragona Spain
| | - Bharath Tata
- Department of Chemistry and Applied BiosciencesInstitute for Chemical and Bioengineering ETH Zurich Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
| | - Qiang Li
- The Barcelona Institute of Science and TechnologyInstitute of Chemical Research of Catalonia (ICIQ) Av. Països Catalans 16 43007 Tarragona Spain
| | - Sharon Mitchell
- Department of Chemistry and Applied BiosciencesInstitute for Chemical and Bioengineering ETH Zurich Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
| | - Núria López
- The Barcelona Institute of Science and TechnologyInstitute of Chemical Research of Catalonia (ICIQ) Av. Països Catalans 16 43007 Tarragona Spain
| | - Javier Pérez‐Ramírez
- Department of Chemistry and Applied BiosciencesInstitute for Chemical and Bioengineering ETH Zurich Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
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