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  • Electroreduction of CO2 in coupled tandem electrolyzers is an enabling technology that can produce valuable chemicals, utilizing different reaction environments in each cell. Now, a kilowatt-scale tandem CO2 electrolysis stack has demonstrated that the selective conversion of CO2 to acetate can achieve competitive prices.

    • Huiyue Liu
    • Tianyu Zhang
    • Jingjie Wu
    News & Views
  • Accurately modeling CO2 electroreduction is key to advancing the technology and understanding its productivity and CO2 utilization trends. Now, Marcus–Hush–Chidsey theory offers accurate predictions of experimental results, leading to further insights beyond reaction kinetics.

    • Ahmad Elgazzar
    • Haotian Wang
    News & Views
  • Transitioning to more sustainable chemicals will require the challenging replacement of fossil resources with renewable carbon and energy sources in their production. Now, integrating industrial sectors offers an interim solution to mitigate emissions in the chemical industry until technologies for closing the carbon loop can be deployed at scale.

    • Gonzalo Guillén-Gosálbez
    • Lucas Francisco dos Santos
    News & Views
  • Liquid–liquid extraction is an indirect separation technique requiring solvent regeneration, and if a back-extraction is needed, it typically reduces the concentration. Now, using an electrochemical reaction, the concentration can be pumped up to 16 times the feed concentration.

    • Boelo Schuur
    News & Views
  • Electric fields offer an easy means to manipulate liquid metal droplets. Now, directed droplet transfer between immersed electrodes is achieved in an alkaline electrolyte without electrical short circuit.

    • Gerd Mutschke
    • Tom Weier
    News & Views
  • Properly maintaining the skin temperature is critical for wound healing, especially outdoors. Now, a lightweight and skin-friendly wound dressing is reported that can continuously cool the skin without energy input.

    • Ronghui Wu
    • Po-Chun Hsu
    News & Views
  • Conventional linearly responsive methods for quantifying host–guest complexation in supramolecular chemistry have a fairly narrow dynamic range. Now, a logarithmically responsive electrochemical method promises to facilitate the measurement of complex equilibria over a larger dynamic range in host–guest systems.

    • Pall Thordarson
    News & Views
  • Fine chemical production mostly relies on petroleum-based chemical synthesis. Now, a process is established to produce benzyl acetate, the main fragrance molecule in jasmine scent, from renewable sugars with engineered bacteria.

    • Nika Sokolova
    • Kristina Haslinger
    News & Views
  • Directing CO2 electroreduction toward a single C2 product poses challenges because the reaction mechanism is unclear. Now, oxygen affinity is identified as a potential key descriptor to manipulate the selectivity of ethylene versus ethanol.

    • Yuting Xu
    • Fanglin Che
    News & Views
  • Designing liquid devices with liquid pathways that can be reconfigured on-demand is important to many chemical and biological applications. Now, a facile approach enables reconfigurable liquid devices through precisely arranged connected liquid droplets that can be rapidly assembled and disassembled.

    • Ting Wang
    • Zuankai Wang
    News & Views
  • Fibers featuring anisotropic structures for liquid transport are often limited to specific liquids and are impractical for large-scale manufacturing. Now, a microfluidic fabrication technique produces continuous hemline-shaped microfibers with improved liquid transport properties and tunable flexibility.

    • Chase Gabbard
    • Joshua Bostwick
    News & Views
  • Removing trace alkyne contaminants in crude ethylene is challenging by traditional catalytic hydrogenation. Now, adsorptive separation through advanced materials design selectively sequesters alkynes in a single-step pathway to produce high-purity ethylene from complex mixtures.

    • Yi Xie
    • Banglin Chen
    News & Views
  • Lignin contains both C–O and C–C bonds, where C–C bonds are highly resistant to cleavage. Now, a bifunctional catalyst enables the cleavage of the challenging C–C bonds in lignin to produce biofuels.

    • Elena Subbotina
    • Joseph S. M. Samec
    News & Views