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Single‐molecule catalysis reflects the heterogeneity of each molecule, providing a unique insight into the complex catalytic mechanism through the statistics of stochastic individuals. However, the present study methods for single‐molecule catalysis are either complicated or have low throughput, limiting their rapid acquisition of single‐molecule reaction kinetics with statistical significance. Here,...
Artificial photocatalytic CO2 reduction (CO2R) holds great promise to directly store solar energy into chemical bonds. The slow charge and mass transfer kinetics at the triphasic solid–liquid–gas interface calls for the rational design of heterogeneous photocatalysts concertedly boosting interfacial charge transfer, local CO2 concentration, and exposure of active sites. To meet these requirements,...
Superelastic aerogels with rapid response and recovery times, as well as exceptional shape recovery performance even from large deformation, are in high demand for wearable sensor applications. In this study, a novel conductive and superelastic cellulose‐based aerogel is successfully developed. The aerogel incorporates networks of cellulose sub‐micron fibers and carbon black (SMF/CB) nanoparticles,...
Cellulose foams are in high demand in an era of prioritizing environmental consciousness. Yet, transferring the exceptional mechanical properties of cellulose fibers into a cellulose network remains a significant challenge. To address this challenge, an innovative multiscale design is developed for producing cellulose foam with exceptional network integrity. Specifically, this design relies on a combination...
Mimicking efficient biocatalytic cascades using nanozymes has gained enormous attention in catalytic chemistry, but it remains challenging to develop a nanozyme‐based cascade system to sequentially perform the desired reactions. Particularly, the integration of sequential hydrolysis and oxidation reactions into nanozyme‐based cascade systems has not yet been achieved, despite their significant roles...
Future renewable energy supply and green, sustainable environmental development rely on various types of catalytic reactions. Copper single‐atom catalysts (Cu SACs) are attractive due to their distinctive electronic structure (3d orbitals are not filled with valence electrons), high atomic utilization, and excellent catalytic performance and selectivity. Despite numerous optimization studies are conducted...
Practical applications of lithium‐sulfur (Li‐S) batteries have been hindered by sluggish reaction kinetics and severe capacity decay during charge‐discharge cycling due to the notorious shuttle effect of polysulfide and the unfavored deposition and dissolution of Li2S. Herein, to address these issues, a double‐defect engineering strategy is developed for preparing Co‐doped FeP catalyst containing...
Lithium‐Sulfur Batteries
In article number 2301545, Hao Sun, Shaochun Tang, and co‐workers report a novel dual‐defect catalyst comprised of Co‐doped FeP with P vacancies on MXene (CoD‐FePv@MXene), which serves as both deposition regulator and redox accelerator for Li2S electrochemistry. The P vacancies deliver more LiPSs adsorption/active sites for accelerating Li2S nucleation, and the Co doping produces...
Potassium‐ion battery represents a promising alternative of conventional lithium‐ion batteries in sustainable and grid‐scale energy storage. Among various anode materials, elemental phosphorus (P) has been actively pursued owing to the ideal natural abundance, theoretical capacity, and electrode potential. However, the sluggish redox kinetics of elemental P has hindered fast and deep potassiation...
The development of high‐performance multifunctional electrocatalysts operating in the same electrolyte is key to reduce the material and process costs of renewable energy conversion and storage devices. Herein, the fabrication of freestanding integral electrodes by combining multivariate electrospinning with surface metal organic framework functionalization to arrest pyrolytic emissions from fiber...
Bismuth–antimony alloy is considered as a promising potassium ion battery anode because of its combination of the high theoretical capacity of antimony and the excellent rate capacity of bismuth. However, the large volume change and sluggish reaction kinetic upon cycling have triggered severe capacity fading and poor rate performance. Herein, a nanoconfined BiSb in tremella‐like carbon microspheres...
The development of high‐performance but low‐cost catalysts for the electrochemical oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is of central importance for realizing the prevailing application of metal–air batteries. Herein a facile route is devised to synthesize S, N codoped carbon cubes embedding Co–Fe carbides by pyrolyzing the Co–Fe Prussian blue analogues (PBA) coated...
Fiber‐shaped supercapacitors have attracted broad attentions from both academic and industrial communities due to the demonstrated potentials as next‐generation power modules. However, it is important while remains challenging to develop dark‐environment identifiable supercapacitor fibers for enhancement on operation convenience and security in nighttime applications. Herein, a novel family of colorful...
Driven by the increasing requirements for energy supply in both modern life and the automobile industry, the lithium–air battery serves as a promising candidate due to its high energy density. However, organic solvents in electrolytes are likely to rapidly vaporize and form flammable gases under increasing temperatures. In this case, serious safety problems may occur and cause great harm to people...
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