Showing papers in "Chem in 2020"

TL;DR: In this article, the authors soberly reflect the charge transfer mechanism from many perspectives and are finally aware of the fundamental challenges they face to ensure a correct understanding, it is necessary to share their analysis with others Moreover, step-scheme heterojunctions, consisting of a reduction photocatalyst and an oxidizer with staggered band structure, are introduced to avoid misinterpretation.

TL;DR: In this article, metal-organic framework (MOF)-derived carbon materials (CMs) have drawn great interest in many fields of application, such as energy storage and conversion, environmental remediation, and catalysis.

TL;DR: In this paper, the uniqueness and basic design principles of metal-organic frameworks (MOFs) for gas separation in terms of their specific pore chemistry and molecular recognition are discussed.

TL;DR: In this article, a cobalt single-atom catalyst (Co SAC) anchored in nitrogen-doped graphene, with optimized adsorption energy of the *OOH intermediate, exhibited a high H2O2 production rate, which even slightly outperformed the state-of-the-art noble metal-based electrocatalysts.

TL;DR: In this article, a perspective summarizes the latest exciting developments in controlled radical polymerization during the last decade (2010-2020) and highlights strengths and weaknesses of recent achievements and portray how these discoveries have expanded the scope of tailor-made polymeric materials.

TL;DR: In this paper, a PVK-based Z-scheme heterojunction, α-Fe2O3/Amine-RGO/CsPbBr3, was proposed for high-efficiency CO2 reduction in the presence of H2O.

TL;DR: In this paper, the authors employed layered PEDOTN4V3O8 (PEDOT-NVO) as a cathode material, which produces an enlarged interlayer spacing of 10.8 mAh g−1 by effectively conducting polymer intercalation.

TL;DR: Energy transfer can leverage the enormous potential of excited-state reactivity as discussed by the authors, allowing for, e.g., cycloadditions, fragmentations, rearrangements, or challenging organometallic steps.

TL;DR: In this article, it is shown that it is possible to etch, and delaminate, MXenes in the absence of water, by using organic polar solvents in the presence of ammonium dihydrogen fluoride.

TL;DR: A better understanding of the roles played by metal compounds at a mechanistic level will help to deliver new metal-based therapies to the clinic, by providing an alternative, targeted and rational approach, to supplement non-targeted screening of novel chemical entities for biological activity.

TL;DR: In this paper, the authors identify the activity origins and design principles of nickel-based catalysts for nucleophile oxidation reaction (NOR) on anode, which is vital to the development of hydrogen generation and organic electrosynthesis.

TL;DR: In this paper, the authors focus on the recent development of high-performance n-type polymer structures, particularly those based on the most investigated and novel electron-deficient building blocks, as well as summarizes the performance achieved in the above devices.

TL;DR: In this article, four representative examples of contemporary organic electrosynthesis that have attracted major attention toward a toolbox for sustainable synthetic chemists have been presented, and compared to our work.

TL;DR: In this article, the authors show that interfacial polarization is an efficient scenario to enhance N≡N fracture to boost electrocatalytic N2 reduction reaction (NRR) and demonstrate that protrusion-shaped Fe single-atom catalysts immobilized onto MoS2 nanosheets engender electric fields to polarize N2.

TL;DR: This work utilizes the biocompatible CaCO3 nanoparticles as the template to guide the formation of pH-dissociable hollow coordination nanostructures, in which meso-tetra-(4-carboxyphenyl)porphine (TCPP) acts as the organic bridging molecule and ferric ion serves as the metallic center.

TL;DR: In this paper, the exact structure of catalytic centers and insights into a spin-crossover-involved mechanism for oxygen reduction reaction (ORR) using operando Raman, X-ray absorption spectroscopies, and the developed operando 57Fe Mossbauer spectroscopy.

TL;DR: In this paper, a redox comediation strategy is proposed and an organopolysulfide (di-t-butyl disulfide, DtbDS) is introduced as a model comediator to accelerate the sulfur redox kinetics.

TL;DR: In this paper, a review of advances in anion complexation in the years 2017 and 2018 is presented, focusing on the applications of anion receptor chemistry, including sensing, self-assembly, extraction, transport, and catalysis.

TL;DR: Li-S batteries have long been at the pinnacle in the realm of high-energy Li-metal batteries as mentioned in this paper, however, there is not yet any report with stable theoretical capacity output due to the complexity of electrode conversion reactions during battery operation.

TL;DR: In this article, the authors examined the current challenges of achieving the record power conversion efficiency (PCE) of 25.2% and outline directions toward the theoretical power conversion efficiencies (PCE) of 30%.

TL;DR: In this article, the authors employed alkali molten salts as catalysts to achieve facile and large-scale (over decagram) synthesis of a family of 2D layered transition-metal nitrides (TMNs), such as MoN1.7W0.3N 1.5, and Mo0.2, under atmospheric pressure.

TL;DR: In this article, a structure-based machine learning platform for diverse applications in organic chemistry was presented, where an input based on multiple fingerprint features (MFFs) as a versatile molecular representation was developed that was shown to be applicable over a range of diverse problem sets.

TL;DR: Recent advances in Ni/photoredox dual catalysis are explored, the current challenges are state, and perspectives on the design of new catalytic systems are discussed.

TL;DR: In this paper, a review of fluorescent probes for reactive oxygen species (ROS) detection in pathophysiological models is presented, including in chemical and bacteria-triggered inflammation, drug-induced organ toxicity, specific diseases, injury of different tissues and organs, and other pathophysiology processes.

TL;DR: In this article, the core principles that help to design energy-dissipating chemical reaction cycles that can drive molecular assemblies are discussed, and strategies for coupling these reaction cycles to building blocks for the materials.

TL;DR: In this paper, the voltage losses in state-of-the-art A-DA′D-A NFA-based OSCs were discussed and new molecular design strategies were proposed to achieve PCE over 20% in OSC based on these new acceptors by further decreasing their total voltage losses.

TL;DR: In this article, a stable dual-ion sodium metal battery employing a multifunctional gel polymer electrolyte, which was facilely prepared by in situ polymerizing an ethoxylated pentaerythritol tetraacrylate monomer in an optimized liquid electrolyte with fluoroethylene carbonate as co-solvent and 1,3-propanesultone as additive.

TL;DR: In this article, a pH-responsive chemiluminescent and chemodynamic system (ultrathin Mn-oxides [MnOx] nanosheet - semiconducting polymer nanoparticles [SPNs]) was developed to generate 1O2 under the trigger of acidity.

TL;DR: In this paper, the requirements, features, and challenges of late-stage functionalization (LSF) reactions accompanied by representative examples have been discussed, and the analysis will be helpful as a guiding principle in the field.

TL;DR: The highly atroposelective synthesis via a C−H functionalization strategy of axially chiral styrenes with an open-chained alkene with potent application of the styrene atropisomers is reported.