We report the first transformation between crystalline vinylene-linked two-dimensional (2D) polymers and cyclobutane-linked three-dimensional (3D) polymers. Specifically, absorption-edge irradiation of 2D poly(arylenevinylene) covalent organic frameworks (COFs) results in topological [2 + 2] cycloaddition cross-linking π-stacked layers 3D COFs. The reaction is reversible, heating to 200 °C leads a cycloreversion while retaining COF crystallinity. resulting difference connectivity manifested...

Abstract Deoxyribonucleic acid (DNA) hydrogels are a unique class of programmable, biocompatible materials able to respond complex stimuli, making them valuable in drug delivery, analyte detection, cell growth, and shape‐memory materials. However, unmodified DNA the literature very soft, rarely reaching storage modulus 10 3 Pa, they lack functionality, limiting their applications. Here, DNA/small‐molecule motif create stiff from DNA, 5 Pa is used. The consists an interaction between...

Abstract Promising Li 7 La 3 Zr 2 O 12 (LLZO) garnet electrolytes for solid batteries are highly sensitive to doping modify performance. Herein, LLZO samples with 59 different elemental dopants synthesized substitutions on each of the sites (177 total materials). Many potential successfully integrate into crystal structure (either cubic or tetragonal), while optimum site predicted from either previous DFT calculations far cheaper bond valence promotes phase. Room temperature ionic...

This study investigates and compares arsenic, As(V), removal from aqueous media using the water-stable zinc metal–organic frameworks (Zn-MOF-74) prepared via room-temperature precipitation (RT-Zn-MOF-74) a solvothermal procedure (HT-Zn-MOF-74). The Zn-MOF-74 crystals possess average particle sizes of 66 nm 144 μm for RT-Zn-MOF-74 HT-Zn-MOF-74, respectively. Moreover, nanosized exhibited superior performance to HT-Zn-MOF-74. While Brunauer–Emmett–Teller surface area was smaller than that...

Na–Fe–Mn–O cathodes hold promise for environmentally benign high‐energy sodium‐ion batteries, addressing material scarcity concerns in Li‐ion batteries. To date, these materials show poor stability the air and suffer significant Fe/Mn dissolution during use. These two detrimental surface effects have so far prevented commercialization of materials. Herein, high‐throughput experiments to make hundreds substitutions into a previously optimized are utilized. Numerous single‐phase made with good...

In optimizing solid electrolytes, metal substitutions have played a pivotal role. To evaluate the impact of substitutions, numerous properties must be evaluated simultaneously to ensure improved performed in complete all-solid batteries.

Boroxine and dioxaborole are the first some of most studied synthons covalent organic frameworks (COFs). Despite their wide application in design functional COFs over last 15 years, synthesis still relies on original Yaghi's condensation boronic acids (with itself or with polyfunctional catechols), which difficult to prepare, poorly soluble, unstable presence water. Here, we propose a new synthetic approach boroxine (on basis transesterification pinacol aryl boronates (aryl-Bpins) methyl...

Over 448 compositions of Na–Fe–Mn–O sodium-ion battery cathodes were made and characterized to determine structure, electrochemical performance, air stability. Two materials (P2 P3) are found have particularly significant improvements.

Na–Mn–O cathodes are very promising for sodium-ion batteries but suffer major setbacks related to long-term cycling and stability in air. With our high-throughput approach, a systematic investigation of 52 different dopants Na0.66MnO2 from across the periodic table was performed. The chemical composition Na0.66Mn0.9M0.1O2+δ (M = dopant) is utilized unravel impact on layered structure investigate how influence battery performance air moisture stability. A broad range doping possible, with 20...

This study aims to characterize rhodamine B (Rh B) loaded poly(D,L-lactide-co-glycolide) (PLGA) nanoparticles (NPs) and their interactions with cardiac myocytes. PLGA NPs were formulated using single emulsion solvent evaporation technique. The influence of varying parameters such as the stabilizer concentration, sonication time, organic aqueous ratio investigated. diameter, dispersity, encapsulation efficiency zeta potential optimized about 184 nm, 0.19, 40% -21.7 mV respectively. In vitro...

Abstract High voltage cathodes are attractive for high energy density Li‐ion batteries. However, candidates such as LiCoPO 4 have presented numerous challenges stemming from poor electronic/ionic conductivities that typical solutions involving nanosizing result in extremely cycling performance. Here, high‐throughput methods applied to develop near‐micron sized carbon‐coated with improved and capacity retention. In total, 1300 materials 46 different substituents synthesized characterized. A...

A great number of candidates exist for solid electrolytes in all-solid Li batteries. This study represents the first a series using combinatorial synthesis, X-ray diffraction (XRD), and impedance spectroscopy to screen better electrolytes. Herein, over 576 Li–La–Ti–O samples are synthesized characterized by XRD. Phase compositions determined automated Rietveld refinement, resulting phase stabilities provide important insights into this class materials. system includes lithium lanthanum...

In the search for better performing battery materials, researchers have increasingly ventured into complex composition spaces, including numerous pseudo-quaternaries, with further substitutions being either explored experimentally or proposed based on computation. Given vast spaces that need exploring, experimental combinatorial science can play an important role in accelerating development of advanced materials and is arguably best means to obtain a sufficiently large data set truly bring...

All-solid lithium batteries are an important technology to achieve safer with potentially longer life. Efforts over the past decade have generated a vast list of candidate solid electrolytes. High-throughput methods already been useful in this context, but studies limited room temperature ionic conductivities. Although high conductivity is necessary, single property insufficient ensure function battery. Herein, suite high-throughput introduced where 64 samples synthesized simultaneously. we...

Lithium lanthanum titanate solid electrolyte has high bulk conductivity and stability at potentials but suffers from low grain boundary instability potentials. In order to mitigate these two limitations, the effect of single partial substitutions on perovskite (Li-La-Ti-O) materials was studied. The X-ray diffraction patterns showed that numerous substituents enable pure-phase perovskite, a feat could not previously be accomplished in unsubstituted materials. Bond valence mismatch is used as...

The development of solid-state electrolytes for lithium-ion batteries (LIBs) focuses on enhancing the safety, lifetime, and energy density. Lithium borosilicate glass ceramics (LBS) have garnered interest due to their electrochemical stability deformability. However, achieving highly ionic conductive glasses requires fully glassy LBS compositions at high lithium contents this remains a challenge. To date, only handful Li–B–Si–O been studied as prospective solid electrolytes. Herein, we...

Developments in lithium-ion batteries for energy storage are currently focused on improving density, increase cycle life, and reducing cost to match targets set by the automotive industry. An important class of cathodes, known as Li-rich layered oxides, Li–Ni–Mn–Co–O, is considered promising next-generation electrode materials, yet a poor understanding number detrimental processes, which underlying mechanisms not clear, has hindered their commercialization. Numerous model systems have been...

The distinctive layered structure, chemical stability and tunability of double hydroxides (LDHs) have led to extensive investigations in various areas photocatalysis, including photocatalytic water splitting, carbon dioxide photoreduction, degradation organic pollutants. Here, a series visible light active cadmium-aluminum (CdAl LDHs) with Cd2+ : Al3+ ratios is synthesized via the reaction-diffusion framework (RDF) leading thereby hierarchal spherical structure LDH. aim this study develop an...

We report the first transformation between crystalline vinylene-linked two-dimensional (2D) polymers and cyclobutane-linked three-dimensional (3D) polymers. Specifically, absorption-edge irradiation of 2D poly(arylenevinylene) covalent organic frameworks (COFs) results in topological [2+2] cycloaddition cross-linking π-stacked layers 3D COFs. The reaction is reversible heating to 200°C leads a cycloreversion while retaining COF crystallinity. resulting difference connectivity manifested...

Delafossite silver cobaltites show a remarkable range of content in materials made by ion-exchange on single-crystal precursors. The results are partly exfoliated with charge carrier densities that vary an order magnitude.