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Showing papers in "Chem in 2021"


Journal ArticleDOI
08 Jul 2021-Chem
TL;DR: In this article, the authors provide a timely theoretical and experimental overview of recent advances in the electrocatalytic conversion of N2 to NH3 underlining the development of novel electro catalysts.

171 citations


Journal ArticleDOI
10 Jun 2021-Chem
TL;DR: In this article, a review integrates fundamentals and applications of catalytic transformations of seven major plastics and outlines relevant systems for 13 frontrunner routes based on heterogeneous, homogeneous, and biocatalysis.

150 citations


Journal ArticleDOI
11 Feb 2021-Chem
TL;DR: This study demonstrates the rational design of peroxidase-specific nanozymes and precise regulation of their enzymatic properties.

150 citations


Journal ArticleDOI
11 Mar 2021-Chem
TL;DR: In this paper, a new design philosophy aiming at significantly enhanced specific host-guest interactions and obtaining a nitrogen-rich covalent organic framework material by introducing a bipyridine group into the building block for the simultaneous capture of both iodine gas through enhanced electron-pair effect and organic iodide via the methylation reaction was presented.

139 citations


Journal ArticleDOI
11 Feb 2021-Chem
TL;DR: In this article, a critical review summarizes some typical persistent and stable organic radicals, together with their chemical synthesis and physicochemical properties, and the up-to-date practical applications in magnetic, electronic, optoelectronic, and biologic fields based on functional organic radicals are presented.

117 citations


Journal ArticleDOI
14 Jan 2021-Chem
TL;DR: In this article, a review focusing on the research progress on 2e-WOR is presented, including basic principles, catalyst development, and H2O2 detection, and various experimental reports on catalysts are summarized.

115 citations


Journal ArticleDOI
11 Mar 2021-Chem
TL;DR: Metal NPs@MOF composites would be an ideal platform integrating the inherent activity of well-accessible metal sites with engineered microenvironment via readily tunable MOFs.

110 citations


Journal ArticleDOI
13 May 2021-Chem
TL;DR: In this paper, a comprehensive review of homogeneous Mn-catalyzed hydrogenation and dehydrogenation reactions from the beginning of 2016 till now is provided, including the hydrogenation of unsaturated C−O, C−N, and C−C bonds, and the catalytic cascade dehydrogenative transformation of alcohols.

104 citations


Journal ArticleDOI
09 Sep 2021-Chem
TL;DR: In this paper, the critical effects brought by the electrolyte recipes in stabilizing Li/Na metal batteries are identified and elucidated, based on a thorough discussion on these effects, they propose strategies that should be taken further.

101 citations


Journal ArticleDOI
13 May 2021-Chem
TL;DR: In this article, a hydrogen-pyrolysis etching strategy was developed to precisely manipulate the uncoordinated N dopants in the Fe-N-C catalyst, which preferentially eliminate pyridinic and pyrrolic N atoms while leaving graphitic N. The resulting catalyst gave a CO faradaic efficiency (FECO) above 90% over a broad window from −0.3 to − 0.8 V.

97 citations


Journal ArticleDOI
11 Feb 2021-Chem
TL;DR: In this paper, various types of well-defined graphene nanoribbons, nanographenes, and graphene-like molecules with open-shell character are summarized, particularly, chemistry and electronic properties of graphene fragments with one, two, and three pairs of parallel zigzag edges.

Journal ArticleDOI
11 Feb 2021-Chem
TL;DR: In this article, a single-site [PtZn4] catalyst by assembling atomically ordered intermetallic alloy (IMA) as a selective and ultrastable PDH catalyst was described.

Journal ArticleDOI
14 Jan 2021-Chem
TL;DR: In this article, the authors compare the two modes of dissipative self-assembly and reveal that multiple analogies exist between chemically and light-fueled systems, and they hope that these considerations will facilitate further development of the field of dissipation.

Journal ArticleDOI
08 Apr 2021-Chem
TL;DR: In this paper, the authors summarized and analyzed the recent advances in catalytic HAS from direct CO2 hydrogenation, including a noble-metal class of catalysts, modified Co-based catalysts and modified Cu-based catalyst.

Journal ArticleDOI
09 Sep 2021-Chem
TL;DR: In this article, a review of catalytic hydrogenation of CO2 with renewable H2 is considered as one of the most practical approaches for reducing CO2 and the synthesis of valuable chemicals and fuels.

Journal ArticleDOI
11 Nov 2021-Chem
TL;DR: In this paper, the carboxyl group at the edge sites of graphitic carbons is the major active site for the 2e− oxygen reduction reaction (ORR), and the carbonyl group is a secondary active site.

Journal ArticleDOI
11 Mar 2021-Chem
TL;DR: This review aims to embrace all the aspects of transition-metal-promoted C–H allylation reactions and shows that they trigger the allylic selectivity of an unsaturated hydrocarbon under proper metal-ligand combination.

Journal ArticleDOI
08 Jul 2021-Chem
TL;DR: In this paper, the 2D/3D perovskite interface forms a p-n junction that is capable of reducing the electron density at the hole transport layer interface and ultimately suppresses interfacial recombination.

Journal ArticleDOI
Laiquan Li1, Cheng Tang1, Huanyu Jin1, Kenneth Davey1, Shi-Zhang Qiao1 
09 Nov 2021-Chem
TL;DR: In this article, the main-group elements (MGEs) with manifold physicochemical properties and intrinsically poor hydrogen adsorption ability could provide superiority to address the challenges mentioned earlier.

Journal ArticleDOI
14 Oct 2021-Chem
TL;DR: In this paper, the atomically dispersed metal Ni (Ni in Ni-N-C is 54.9 wt %) with high loading was achieved by ultrahigh N-doping carbon (N/N−C:29.5 wt%) during discharging process of nickel sulfide, leading to good reversibility and high capacity maintenance owing to ultrahigh phase contact during long cycling for sodium-ion batteries.

Journal ArticleDOI
08 Apr 2021-Chem
TL;DR: This review highlights examples of molecular containers with preordained binding pockets and focuses on cavity-enabled functions, such as selective capture, controlled release, and efficient catalysis.

Journal ArticleDOI
08 Apr 2021-Chem
TL;DR: In this article, the synthesis and pollutant-capturing abilities of covalent polymeric structures, including Covalent organic polymers and organic frameworks that contain organic macrocycles in the backbone of their structures are discussed.

Journal ArticleDOI
13 May 2021-Chem
TL;DR: Recent advances in DNA nanocarrier-based formulation for cancer therapy are summarized and the challenges and opportunities in designer DNA nanostructure-enabled therapeutics are discussed.

Journal ArticleDOI
11 Mar 2021-Chem
TL;DR: In this article, a hybrid monomer design strategy that synergistically couples a high ceiling temperature (HCT) sub-structure for high polymerizability and performance properties with a low ceiling temperature sub-structured for high depolymerization and recyclability within the same monomer structure was introduced.

Journal ArticleDOI
11 Mar 2021-Chem
TL;DR: A review of the current knowledge of excited states in carbon nanocolloids and related properties can be found in this paper, where the authors point out the fundamental problems associated with their structure, photophysics, and photochemistry and highlight multiple directions of current and future research of carbon nanomaterials.

Journal ArticleDOI
08 Apr 2021-Chem
TL;DR: A new family of mechanophores based on the oxazine (OX) structural motif exhibit faster and reversible mechanochromism without any sign of fatigue, and are anticipated to bring deeper understanding to a broad range of soft materials by in situ monitoring the local mechanics.

Journal ArticleDOI
14 Jan 2021-Chem
TL;DR: In this paper, a selective, catalytic oxidation of C-H bonds in commodity polyethylenes with varying molecular weights and architectures is described. But the results show that the functionalized materials exhibit physical properties that are absent in unmodified polyolefins, such as strong adhesion and the ability to be painted with common waterborne latex paint.

Journal ArticleDOI
11 Nov 2021-Chem
TL;DR: A systematic crystal engineering study of C2H2 removal from CO2 in a family of hybrid ultramicroporous materials (HUMs) reveals that one sorbent, SIFSIX-21-Ni, was the first C 2H2 selective sorbent that combines exceptional separation selectivity with high adsorption capacity (4 mmol·g−1).

Journal ArticleDOI
13 May 2021-Chem
TL;DR: In this article, the fundamental understanding of the chemical states and structures of conjugated coordination polymers based on previous works and other literatures is disclosed. And the synthetic control for a desired/ideal structure with high crystallinity and the variation of chemical states during the charge storage further deepen the understanding of CCPs.

Journal ArticleDOI
11 Nov 2021-Chem
TL;DR: In this paper, a set of design principles for next-generation kinetically trapped, intrinsically circular polymers (iCPs) are discussed, which are inherently, selectively, and expediently depolymerizable to their monomer state once their kinetic barriers of deconstruction are overcome, thereby enabling not only the ideal shortest chemicalcircularity but also tunable performance properties.