DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Dynamical Change of Valence States and Structure in NiCu3 Nanoparticles during Redox Cycling

Journal Article · · Journal of Physical Chemistry. C

Alloyed materials are promising candidates to improve catalytic processes. Ni–Cu nanoparticles are used for various reactions, including processes with biomass-derived components. However, dynamical restructuring effects alter the catalytic properties and can deactivate the sample. To understand these structural modifications, a multimodal investigation of NiCu3/C was performed to determine compositional and morphological changes during a redox cycle to simulate reduction and oxidation of the catalyst during reaction. We exploit a novel correlative, multimodal approach that combines in situ X-ray absorption spectroscopy (XAS) and in situ scanning transmission electron microscopy and electron energy-loss spectroscopy (STEM-EELS) to describe changes that occur in the sample in realistic conditions. In the fresh sample, there are two morphologies present: core–shell and hollow. Segregation of Cu was observed in both types of particles after synthesis, with Cu being more oxidized in the hollow structures. Upon reduction for 2 h under H2 at 400 °C, the Cu was reduced, although segregation of Cu and Ni was still observed. Subsequent exposure to O2 at 400 °C led to a strong reoxidation of Cu with the formation of hollow particles with compositional heterogeneities. The oxidation of metals and segregation phenomena can be related to known catalytic properties of NiCu3/C particles, especially regarding the hydrodeoxygenation of 5-hydroxymethylfurfural to 2,5-dimethylfuran.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
Grant/Contract Number:
SC0012704; SC0012573
OSTI ID:
1844590
Report Number(s):
BNL--222719-2022-JAAM
Journal Information:
Journal of Physical Chemistry. C, Journal Name: Journal of Physical Chemistry. C Journal Issue: 4 Vol. 126; ISSN 1932-7447
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (48)

Multimodal Spectroscopic Study of Surface Termination Evolution in Cr 2 TiC 2 T x MXene journal January 2021
Nickel Poisoning of a Cracking Catalyst Unravelled by Single‐Particle X‐ray Fluorescence‐Diffraction‐Absorption Tomography journal January 2020
Synergistic Catalysis over Bimetallic Alloy Nanoparticles journal January 2013
Operando Characterization of Catalysts through use of a Portable Microreactor journal October 2015
Generation of copper, nickel, and CuNi alloy nanoparticles by spark discharge journal August 2016
Engineering the composition of bimetallic nanocrystals to improve hydrodeoxygenation selectivity for 2-acetylfuran journal September 2020
Base metal-Pt alloys: A general route to high selectivity and stability in the production of biofuels from HMF journal December 2016
Concerns of corrosive effects with respect to lightning protection systems journal November 2015
Oxidation studies on mono (Cu, Ni) and bimetallic (Cu–Ni) nanoparticles and its impact on catalytic activity journal March 2020
Selective conversion of furfural to methylfuran over silica-supported NiFe bimetallic catalysts journal November 2011
Dilute Pd-in-Au alloy RCT-SiO2 catalysts for enhanced oxidative methanol coupling journal June 2021
Atomically resolved mapping of EELS fine structures journal July 2017
Reaction pathways of furfural, furfuryl alcohol and 2-methylfuran on Cu(111) and NiCu bimetallic surfaces journal October 2016
Towards atomically resolved EELS elemental and fine structure mapping via multi-frame and energy-offset correction spectroscopy journal January 2018
In Situ TEM Study of Catalytic Nanoparticle Reactions in Atmospheric Pressure Gas Environment journal September 2013
Determination of Platinum, Palladium, and Rhodium in Automotive Catalysts Using High-Energy Secondary Target X-ray Fluorescence Spectrometry journal July 2007
Catalytic Transfer Hydrogenolysis/Hydrogenation of Biomass-Derived 5-Formyloxymethylfurfural to 2, 5-Dimethylfuran Over Ni–Cu Bimetallic Catalyst with Formic Acid As a Hydrogen Donor journal March 2019
A Quantitative Scale of Oxophilicity and Thiophilicity journal August 2016
Heterodimers for in Situ Plasmonic Spectroscopy: Cu Nanoparticle Oxidation Kinetics, Kirkendall Effect, and Compensation in the Arrhenius Parameters journal February 2019
Binary Transition-Metal Oxide Hollow Nanoparticles for Oxygen Evolution Reaction journal June 2018
Tuning the Electrocatalytic Oxygen Reduction Reaction Activity of Pt–Co Nanocrystals by Cobalt Concentration with Atomic-Scale Understanding journal July 2019
Mechanisms for High Selectivity in the Hydrodeoxygenation of 5-Hydroxymethylfurfural over PtCo Nanocrystals journal May 2016
Support Induced Control of Surface Composition in Cu–Ni/TiO 2 Catalysts Enables High Yield Co-Conversion of HMF and Furfural to Methylated Furans journal May 2017
Identifying Dynamic Structural Changes of Active Sites in Pt–Ni Bimetallic Catalysts Using Multimodal Approaches journal April 2018
Achieving High Selectivity for Alkyne Hydrogenation at High Conversions with Compositionally Optimized PdAu Nanoparticle Catalysts in Raspberry Colloid-Templated SiO 2 journal November 2019
Insights into the Promotion with Ru of Co/TiO 2 Fischer–Tropsch Catalysts: An In Situ Spectroscopic Study journal May 2020
Nickel, Copper and Some of their Alloys as Catalysts for Ethylene Hydrogenation 1 journal February 1954
Pt-Decorated PdCo@Pd/C Core−Shell Nanoparticles with Enhanced Stability and Electrocatalytic Activity for the Oxygen Reduction Reaction journal December 2010
Noncrystalline-to-Crystalline Transformations in Pt Nanoparticles journal August 2013
Conjugation-Driven “Reverse Mars–van Krevelen”-Type Radical Mechanism for Low-Temperature C–O Bond Activation journal June 2016
Oxidation of Cupro–Nickel Alloys in Steam–Oxygen Mixtures journal October 1962
Oxidation of Cupro-Nickel Alloys in Steam–Oxygen Mixtures journal October 1962
Operando time-resolved X-ray absorption spectroscopy reveals the chemical nature enabling highly selective CO2 reduction journal July 2020
Unlocking synergy in bimetallic catalysts by core–shell design journal May 2021
Large scale synthesis of copper nickel alloy nanoparticles with reduced compressibility using arc thermal plasma process journal April 2021
Bimetallic synergy in cobalt–palladium nanocatalysts for CO oxidation journal December 2018
Enhancing catalytic performance of dilute metal alloy nanomaterials journal April 2020
NixCuy/Al2O3 based catalysts for hydrogen production journal January 2008
Unraveling the surface state and composition of highly selective nanocrystalline Ni–Cu alloy catalysts for hydrodeoxygenation of HMF journal January 2017
Spectroscopic characterization of a highly selective NiCu 3 /C hydrodeoxygenation catalyst journal January 2018
Resolving single Cu nanoparticle oxidation and Kirkendall void formation with in situ plasmonic nanospectroscopy and electrodynamic simulations journal January 2019
Highly efficient alloyed NiCu/Nb 2 O 5 catalyst for the hydrodeoxygenation of biofuel precursors into liquid alkanes journal January 2020
Oxygen binding energy of doped metal: a shortcut to efficient Ni-based bimetallic catalysts for the hydrodeoxygenation reaction journal January 2021
Alloys in catalysis: phase separation and surface segregation phenomena in response to the reactive environment journal January 2012
Size dependent reduction–oxidation–reduction behaviour of cobalt oxide nanocrystals journal January 2013
Oxidation of nanoscale Au-In alloy particles as a possible route toward stable Au-based catalysts journal June 2013
The Role of a Displacement Reaction in the Kinetics of Oxidation of Alloys journal January 1961
Lignocellulosic Biomass Transformations via Greener Oxidative Pretreatment Processes: Access to Energy and Value-Added Chemicals journal April 2018