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This work demonstrates a wireless electroenzymatic platform using carbon microsphere electrodes co-immobilized with a rhodium catalyst and lactate dehydrogenase (LDH) for integrated NADH regeneration and pyruvate-to-L-lactate conversion in a bipolar electrochemical system. The 3D "aggregate reactor" architecture, functionalized diazonium grafting, Rh coordination, and covalent enzyme coupling, enables spatial coupling of cofactor recycling and biocatalysis, while HPLC revealed a L-lactate production rate of 0.04 mM cm h under 12.5 V cm with plenty of carbon beads attributed to enhanced mass transport. This wireless, scalable design eliminates wiring constraints and offers modular adaptability for sustainable synthesis of chiral chemicals.
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http://dx.doi.org/10.1039/d5cp02222c | DOI Listing |
J Colloid Interface Sci
August 2025
School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, China; School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China. Electronic address:
Integration of the hydrogen evolution reaction (HER) and urea oxidation reaction (UOR) is a prospective strategy for energy-efficient hydrogen generation. However, developing highly effective dual functional catalysts for both HER and UOR is still challenging. Herein, two-dimensional rhodium‑nickel (RhNi) metallene with a wrinkled nanosheet structure is prepared by a feasible two-step hydrothermal approach, which provides numerous catalytically active centers and accelerates the charge transfer during the reaction.
View Article and Find Full Text PDFACS Nano
September 2025
National & Local Joint Engineering Research Center of Precision Coal Mining, Anhui University of Science and Technology, Huainan 232001, PR China.
Using monometallic catalysts to selectively catalyze methane to methanol while suppressing the formation of liquid-phase overoxide products is beneficial for industrial applications. However, the balance between yield and selectivity over monometallic active sites remains challenging. This work proposes a strategy anchoring binary rhodium species to influence their surface dispersion properties.
View Article and Find Full Text PDFJ Colloid Interface Sci
August 2025
Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, PR China. Electronic address:
Replacing the sluggish anodic oxygen evolution reaction (OER) with thermodynamically favorable hydrazine oxidation reaction (HzOR) constitutes a transformative approach for advancing energy-efficient hydrogen (H) production. Herein, we fabricate Rh nanoparticles anchored on MoC/N-doped carbon nanofibers (MoC/NCNFs) as a bifunctional electrocatalyst for simultaneous HzOR and hydrogen evolution reaction (HER). Through optimizing Rh loading, the MoC/NCNFs-6Rh catalyst achieves a record-low potential of -0.
View Article and Find Full Text PDFJ Org Chem
August 2025
School of Chemistry and Life Resources, Renmin University of China, Beijing 100872, China.
Rhodium-catalyzed one-pot tandem reductive amination/asymmetric transfer hydrogenation of quinoline-2-carbaldehydes with anilines using HCOH/NEt reductant has been developed for enantioselective synthesis of chiral ,'-diaryl vicinal diamines. The reaction tolerates various anilines and quinoline-2-carbaldehydes, affording chiral ,'-diaryl vicinal diamines in high yields with excellent enantioselectivities (up to 99% ee). The enantiocontrol is achieved by the judicious selection of transition-metal catalyst, reductant, and additive.
View Article and Find Full Text PDFACS Appl Mater Interfaces
August 2025
Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States.
The scalable and facile preparation of single-atom catalysts remains a critical challenge. Here, we introduce diluted atomic layer deposition (DALD), a unique approach for synthesizing supported metal catalysts with precisely tunable loadings. Unlike conventional metal deposition by ALD which uses pure metal precursors, DALD employs a diluted precursor mixture, combining organometallic precursors with the corresponding free ligand in controlled ratios.
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