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Hydrogen peroxide (H2O2) is a highly value‐added and environmental‐friendly chemical with various applications. The production of H2O2 by electrocatalytic 2e− oxygen reduction reaction (ORR) has emerged as a promising alternative to the energy‐intensive anthraquinone process. High selectivity Catalysts combining with superior activity are critical for the efficient electrosynthesis of H2O2. Earth‐abundant...
Highly robust flexible multifunctional film with excellent electromagnetic interference shielding and electrothermal/photothermal characteristics are highly desirable for aerospace, military, and wearable devices. Herein, an asymmetric gradient multilayer structured bacterial cellulose@Fe3O4/carbon nanotube/Ti3C2Tx (BC@Fe3O4/CNT/Ti3C2Tx) multifunctional composite film is fabricated with simultaneously...
Multicolor Electrochromic Devices
In article number 2310229, Guofa Cai and co‐workers propose an ingenious electrochromic strategy based on reversible manganese oxide electrodeposition, endowing electrochromic devices with the features of dual‐band regulation for the ultraviolet‐visible light, multicolor display as well as excellent areal capacity.
Electrochromic technology offers exciting opportunities for smart applications such as energy‐saving and interactive systems. However, achieving dual‐band regulation together with the multicolor function is still an unmet challenge for electrochromic devices. Herein, an ingenious electrochromic strategy based on reversible manganese oxide (MnO2) electrodeposition, different from traditional ion intercalation/deintercalation‐type...
The increasing demand for wearable electronics calls for advanced energy storage solutions that integrate high electrochemical performances and mechanical robustness. Ionogel is a promising candidate due to its stretchability combined with high ionic conductivity. However, simultaneously optimizing both the electrochemical and mechanical performance of ionogels remains a challenge. This paper reports...
Many existing synthetic hydrogels are inappropriate for repetitive motions because of large hysteresis, and their mechanical properties in warm and saline physiological conditions remain understudied. In this study, a stretch‐rate‐independent, hysteresis‐free, elastic, and tough nanocomposite hydrogel that can maintain its mechanical properties in phosphate‐buffered saline of 37 °C similar to warm...
Heterogeneous Catalysis
In article number 2308934, Bong‐Joong Kim and co‐workers devise a method to exsolve metal dopants from amorphous perovskite oxides, followed by the crystallization of these oxides through vacuum‐annealing at elevated temperatures. This process extracts all heavily doped Co atoms from SrTiO3, resulting in uniformly distributed, high‐density CoO nanoparticles embedded in the...
Exsolution generates metal nanoparticles anchored within crystalline oxide supports, ensuring efficient exposure, uniform dispersion, and strong nanoparticle–perovskite interactions. Increased doping level in the perovskite is essential for further enhancing performance in renewable energy applications; however, this is constrained by limited surface exsolution, structural instability, and sluggish...
The long‐term inflammatory microenvironment is one of the main obstacles to inhibit acute spinal cord injury (SCI) repair. The natural adipose tissue‐derived extracellular matrix hydrogel shows effective anti‐inflammatory regulation because of its unique protein components. However, the rapid degradation rate and removal of functional proteins during the decellularization process impair the lasting...
The key to design an advanced oxygen reduction reaction (ORR) electrocatalyst is a well‐balance between the adsorption and desorption of oxygen intermediates. This study systematically evaluated the ORR activity of HCP and FCC cobalt core–shell cobalt/N‐doped carbon (Cobalt@NC) catalyst via theoretical and experimental studies. The electronic structure calculations using density functional theory...
Multifunction superhydrophobic coatings that facilitate water harvesting are attractive for addressing the daunting water crisis, yet, they are caught in a double bind when their durability is considered, as durable coatings will require both tough micro‐textures to survive concentrated stress and high‐surface‐energy chemistry to form chemical bonds within the matrix. To date, a universal bulk‐phase...
Superhydrophobic Coatings
In article number 2307561, Youfa Zhang and co‐workers develop a binary cooperative cell design that eliminates the mutual exclusion between the features of functions and mechanical stability of superhydrophobic coatings. The coating is structurally strong and exhibits almost all aspects of enhancement including ultra‐durability and over 1000% enhancement in water harvesting...
A flexible sensor that simultaneously senses temperature and pressure is crucial in various fields, such as human‐machine interaction, artificial intelligence, and biomedical applications. Previous research has mainly focused on single‐function flexible sensors for e‐skins or smart devices, and integrated bimodal sensing of temperature and pressure without complex crosstalk decoupling algorithms remains...
Type‐I photosensitizers have shown advantages in addressing the shortcomings of traditional oxygen‐dependent type‐II photosensitizers for the photodynamic therapy (PDT) of hypoxic tumors. However, developing type‐I photosensitizers is yet a huge challenge because the type‐II energy transfer process is much faster than the type‐I electron transfer process. Herein, from the fundamental point of view,...
Transition metal‐based sulfides exhibit remarkable potential as electrocatalysts for oxygen evolution reaction (OER) due to the unique intrinsic structure and physicochemical characteristics. Nevertheless, currently available sulfide catalysts based on transition metals face a bottleneck in large‐scale commercial applications owing to their unsatisfactory stability. Here, the first fabrication of...
The search for high‐performance and low‐cost electrocatalysts in acid conditions still remains a challenging target. Herein, iridium (Ir) doped strontium manganate (named as Irx‐SMO) is proposed as an efficient and durable low‐iridium electrocatalyst for water oxidation in acidic media. The Ir0.1‐SMO with 75% less iridium in comparison to that of iridium dioxide (IrO2) exhibits excellent performance...
Li‐O2 batteries could deliver ultra‐high theoretical energy density compared to current Li‐ion batteries counterpart. The slow cathode reaction kinetics in Li‐O2 batteries, however, limits their electrocatalytic performance. To this end, MoSe2 and Ni0.85Se nanoflakes were decorated in carbon hollow nanoflowers, which were served as the cathode catalysts for Li‐O2 batteries. The hexagonal Ni0.85Se...
Current practices for delivering agrochemicals are inefficient, with only a fraction reaching the intended targets in plants. The surfaces of nanocarriers are functionalized with sucrose, enabling rapid and efficient foliar delivery into the plant phloem, a vascular tissue that transports sugars, signaling molecules, and agrochemicals through the whole plant. The chemical affinity of sucrose molecules...
Microbial fuel cells (MFCs) are of great potential for wastewater remediation and chemical energy recovery. Nevertheless, limited by inefficient electron transfer between microorganisms and electrode, the remediation capacity and output power density of MFCs are still far away from the demand of practical application. Herein, a pore‐matching strategy is reported to develop uniform electroactive biofilms...
Microbial Fuel Cells
In article number 2304754, Jianmeng Chen, Shihan Zhang, Jingkai Zhao, and co‐workers provide a pore‐matched strategy to develop an excellent bioanode to boost electron extraction in microbial fuel cells. Due to the suitable pore size range of the sponge‐like electrode matching with microbial cells, the microbial cells can be attached individually and wired with the abiotic substrate...
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