Compositional dependence of hydrodeoxygenation pathway selectivity for Ni2−xRhxP nanoparticle catalysts

Libretto, Nicole J.; Tacey, Sean A.; Zubair, Muhammad; Bui, Tuong V.; Unocic, Kinga A.; Baddour, Frederick G.; Griffin, Michael B.; Schaidle, Joshua A.; Farberow, Carrie A.; Ruddy, Daniel A.; Habas, Susan E.

doi:10.1039/d3ta02071a

J. Mater. Chem. A

2023

DOI: 10.1039/d3ta02071a

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Compositional dependence of hydrodeoxygenation pathway selectivity for Ni_2−xRh_xP nanoparticle catalysts

Nicole J. Libretto

Sean A. Tacey

Muhammad Zubair

et al.

Abstract: Controlled synthesis of Ni2−xRhxP nanoparticle catalysts enables an understanding of composition-dependent selectivity for the hydrodeoxygenation reaction of phenolic molecules.

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2024

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Cited by 2 publications

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Vacancy Mediated Electrooxidation of 5‐Hydroxymethyl Furfuryl Using Defect Engineered Layered Double Hydroxide Electrocatalysts

Zubair,

Usov,

Ohtsu

et al. 2024

Advanced Energy Materials

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Electrochemical biomass oxidation coupled with hydrogen evolution offers a promising route to generate value‐added chemicals and clean energy. The complex adsorption behavior of 5‐hydroxymethyl furfural (HMF) and hydroxyl ions (OH−) on the electrocatalyst surface during HMF electrooxidation reaction (HMFOR) necessitates an in‐depth understanding of active sites available for adsorption. Herein, oxygen vacancy (VO) defects are introduced in NiFe layered double hydroxide (LDH) using Ce dopants to manipulate electronic structure. Synchrotron‐based HE‐XRD and XAS indicate negligible VO in La‐doped NiFe while Ce doping leads to VO defects due to flexible Ce redox (Ce3+↔ Ce4+). The VO‐rich Ce‐NiFe exhibits higher Faradic efficiency of ≈90% to produce 2,5‐furan dicarboxylic acid (FDCA), far greater than ≈60% for NiFe VO in Ce‐NiFe act as alternative active sites for OH− adsorption, hence reducing adsorption competition for the same metal sites. DFT calculation results corroborate experimental findings by showcasing that the presence of VO in Ce‐NiFe manipulates the adsorption energies and facilitates the chemical adsorption OH− in VO to improve HMFOR. In situ HE‐XRD derived pair distribution function coupled to RMC simulations confirm OH− trapping in VO and HMF adsorption on metal centers as evident by interlayer distance evolution. Taken together, this work showcases routes for dual‐site electrocatalyst design for improved biomass electrooxidation.

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Vacancy Mediated Electrooxidation of 5‐Hydroxymethyl Furfuryl Using Defect Engineered Layered Double Hydroxide Electrocatalysts

Zubair,

Usov,

Ohtsu

et al. 2024

Advanced Energy Materials

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Advances in enhancing hydrodeoxygenation selectivity of lignin-derived oxygenates: From synthetic strategies to fundamental techniques

Wu,

Zhang,

et al. 2024

Green Energy & Environment

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Compositional dependence of hydrodeoxygenation pathway selectivity for Ni_2−xRh_xP nanoparticle catalysts

Abstract: Controlled synthesis of Ni2−xRhxP nanoparticle catalysts enables an understanding of composition-dependent selectivity for the hydrodeoxygenation reaction of phenolic molecules.

Cited by 2 publications

References 63 publications

Vacancy Mediated Electrooxidation of 5‐Hydroxymethyl Furfuryl Using Defect Engineered Layered Double Hydroxide Electrocatalysts

Vacancy Mediated Electrooxidation of 5‐Hydroxymethyl Furfuryl Using Defect Engineered Layered Double Hydroxide Electrocatalysts

Advances in enhancing hydrodeoxygenation selectivity of lignin-derived oxygenates: From synthetic strategies to fundamental techniques

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