Hydrogenation of biomass-derived chemicals is of interest for the production of biofuels and valorized chemicals. Thermochemical processes for biomass reduction typically employ hydrogen as the reductant at elevated temperatures and pressures. Here, the authors investigate the direct electrified reduction of 5-hydroxymethylfurfural (HMF) to a precursor to bio-polymers, 2,5-bis(hydroxymethyl)furan (BHMF). Noting a limited current density in prior reports of this transformation, a hybrid catalyst consisting of ternary metal nanodendrites mixed with a cationic ionomer, the latter purposed to increase local pH and facilitate surface proton diffusion, is investigated. This approach, when implemented using Ga-doped Ag-Cu electrocatalysts designed for p-d orbital hybridization, steered selectivity to BHMF, achieving a faradaic efficiency (FE) of 58% at 100 mA cm and a production rate of 1 mmol cmh, the latter a doubling in rate compared to the best prior reports.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/adma.202312778 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Polyphenols as reactive carbonyl substances regulators: A comprehensive review of thermal processing hazards mitigation.
Food Res Int
January 2025
College of Food Science and Nutritional Engineering, National Engineering Research Centre for Fruits and Vegetables Processing, Key Laboratory of Storage and Processing of Fruits and Vegetables, Ministry of Agriculture, Engineering Research Centre for Fruits and Vegetables Processing, Ministry of Education, China Agricultural University, Beijing 100083, China. Electronic address:
Reactive carbonyl species (RCS) are a class of compounds with one or more C = O structures with highly reactive electrophilic properties. This comprehensive review delves into the multifaceted role of RCS in thermally processed foods, where they serve as both crucial intermediates in the development of food color and flavor, as well as precursors of potentially harmful compounds. By exploring the carbonyl pool concept, the impact of RCS equilibrium on the formation and reduction of hazardous substances such as acrylamide, hydroxymethylfurfural, advanced glycation end-products, and heterocyclic amines was elucidated.
View Article and Find Full Text PDFHeteroarchitectural Gas Diffusion Layer Promotes CO2 Reduction Coupled with Biomass Oxidation at Ampere-Level Current Density.
Angew Chem Int Ed Engl
January 2025
Shanghai Jiao Tong University, School of Environmental Science and Engineering, 800 Dongchuan Road, 200240, Shanghai, CHINA.
Achieving high product selectivity at ampere-level current densities is essential for the industrial application of electrochemical CO2 reduction. However, the operational stability of CO2 electrolyzers at large current density has long been hindered by flooding of gas diffusion layer (GDL). Herein, a new heteroarchitectural GDL is designed to overcome flooding.
View Article and Find Full Text PDFElectrostatic Spray Drying of a Milk Protein Matrix-Impact on Maillard Reactions.
Molecules
December 2024
Food Chemistry and Technology, Teagasc Food Research Centre, Moorepark, Fermoy, Co., P61 C996 Cork, Ireland.
Electrostatic spray drying (ESD) of a milk protein matrix comprising whey protein isolate (WPI), skim milk powder (SMP), and lactose was compared to conventional spray drying (CSD) and freeze-drying (FD). ESD and CSD were used to produce powders at low (0.12-0.
View Article and Find Full Text PDFCharge Manipulation of Porous Coordination Cages Tunes the Efficiency and Selectivity in Electrochemical Synthesis.
Angew Chem Int Ed Engl
December 2024
State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, 410082, Changsha, Hunan, China.
Electrocatalytic synthesis of high-value chemicals has been attracting growing interest owing to its environmentally benign reaction pathways. Among these processes, the electrocatalytic reduction of nitrate (NO ) to ammonia (NH), known as NORR, and the oxidation of 5-hydroxymethylfurfural (HMFOR) stand out as two cornerstone reactions; yet, their efficiency and selectivity pose ongoing challenges. In this study, we introduce a charge manipulation approach for the design of highly efficient electrocatalysts tailored for the simultaneous coupling of NORR and HMFOR.
View Article and Find Full Text PDFSelective Electroreduction of CO to CO over Ultrawide Potential Window via Implanting Active Site with Long-Range P Regulation on Periodic Pores.
Angew Chem Int Ed Engl
December 2024
School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China.
Electroreduction of CO to CO represents a highly promising way for artificial carbon cycling, but obtaining high selectivity over a wide potential window remains a challenge due to the sluggish CO generation and diffusion kinetics. Here we report an integration of long-range P modified bismuth atomic site on an ordered macroporous carbon skeleton with mesoporous "wall" (MW-BiN-POMC) for efficient electroreduction of CO. In-depth in situ investigations with theoretical computations reveal that the incorporation of long-range P atom is able to strengthen the orbital interaction between the C 2p of CO and Bi 6p, thereby establishing an electronic transport bridge for the activation of CO molecule.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!