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The generation of an active phase through dynamic surface reconstruction is a promising strategy for improving the activity of electrocatalysts. However, studies investigating the reconstruction process and its impact on the intrinsic properties of the catalysts are scarce. Herein, the surface reconstruction of NiFe2O4 interfaced with NiMoO4 (Ru–NFO/NMO) facilitated by Ru doping is reported. The electrochemical...
Oxygen Evolution
In article number 2304822, Juhyung Choi, Yuanzhe Piao, Lawrence Yoon Suk Lee, and co‐workers demonstrate how Ru doping facilitates the surface reconstruction of NiFe2O4 interfaced NiMoO4 pre‐catalyst and improves the OER activity of the reconstructed catalyst. The surface reconstructed Ru‐doped NiFeOOH/NiOOH with optimized electronic structures and high valance Ni3.6+δ species have...
Continuous progress has been made in elucidating the relationship between material property, device design, and body function to develop surgical meshes. However, an unmet need still exists wherein the surgical mesh can handle the body motion and thereby promote the repair process. Here, the hernia mesh design and the advanced polymer properties are tailored to synchronize with the anisotropic abdominal...
Positively Charged Liposomes
Systemic delivery of positively charged fusogenic liposomes loaded with a stimulator of interferon genes (STING) agonist (PoSTING) selectively targets the tumor microenvironment and suppresses aberrant tumor angiogenesis. PoSTING can convert non‐inflamed cold tumors (upper) into inflamed hot tumors (lower) by normalizing tumor blood vessels (red) and promoting CD8+ T cell...
Although stimulator of interferon genes (STING) agonists has shown great promise in preclinical studies, the clinical development of STING agonist therapy is challenged by its limited systemic delivery. Here, positively charged fusogenic liposomes loaded with a STING agonist (PoSTING) are designed for systemic delivery and to preferentially target the tumor microenvironment. When PoSTING is administered...
Potassium‐ and sodium‐ion batteries (PIBs and SIBs) have great potential as the next‐generation energy application owing to the natural abundance of K and Na. Antimony (Sb) is a suitable alloying‐type anode for PIBs and SIBs due to its high theoretical capacity and proper operation voltage; yet, the severe volume variation remains a challenge. Herein, a preparation of N‐doped carbon‐wrapped Sb nanoparticles...
2D tellurium is a suitable electrocatalyst support that can assist electron transport while hosting active sites, yet its production remains challenging. Herein, a cathodic exfoliation method that can exfoliate Te crystal directly to Te nanosheets at low potential, also enabling simultaneous transition metal doping on Te nanosheet surface is presented. In situ Raman spectra and ex situ characterizations...
In article number 2007768, a cathodic exfoliation method for scalable production of two‐dimensional tellurium (Te) is described by Lawrence Yoon Suk Lee and co‐workers. Te crystals are exfoliated to Te nanosheets at a low potential with simultaneous transition metal doping as single‐atom electrocatalysts. The Pt‐doped Te nanosheet exhibits high catalytic activity toward H2 production via a collaborative...
With excellent performance in the hydrogen evolution reaction (HER), molybdenum disulfide (MoS2) is considered a promising nonprecious candidate to substitute Pt‐based catalysts. Herein, pulsed laser irradiation in liquid is used to realize one‐step exfoliation of bulk 2H‐MoS2 to ultrastable few‐layer MoS2 nanosheets. Such prepared MoS2 nanosheets are rich in S vacancies and metallic 1T phase, which...
2D titanium carbide (Ti3C2Tx MXene) is recognized as a promising material for pseudocapacitor electrodes in acidic solutions, while the current studies in neutral electrolytes show much poorer performances. By a simple hydrothermal method, vanadium‐doped Ti3C2Tx 2D nanosheets are prepared to tune the interaction between MXene and alkali metal adsorbates (Li+, Na+, and K+) in the neutral electrolyte...
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