Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Some non-fluorinated arylamines are also formed by a competitive direct reduction of the N-arylhydroxylamine intermediate. In this pair, intramolecular combination to the ortho position proceeds preferentially over that to the para position. More information can be found in the Communication by J. Jeong et al. Join ResearchGate to find the people and research you need to help your work. In amperometric determination, the limits of detection and quantification of NADH are calculated to be 0.16 μM and 0.48 μM, respectively. A green process for production of p -aminophenol from nitrobenzene hydrogenation in CO 2 /H 2 O: The promoting effects of CO 2 and H 2 O. Hong Wang, Taotao Jiang, Lei Ma, Hanbing Wang, Xiaoliang Xu, Chunshan Lu, Xiaonian Li. from the ACS website, either in whole or in part, in either machine-readable form or any other form © 2008-2020 ResearchGate GmbH. Optimized water annealing can provide a photocatalyst that performs almost as well as after thermal annealing; however, a most effective catalyst is obtained by combining both annealing treatments. Lijun Zhao, Haiyang Cheng, Tong Liu, Yan Li, Zhong Ying, Wenjing Yang, Weiwei Lin, Xiangchun Meng, Chengxue Wang, Fengyu Zhao. Good first-order kinetics were obtained for the rearrangement. Ion preference: Introduction of crown ether functionalities on the backbone of a conducting polymer chain (PEDOT analog) allows conferring ion selective features in the resulting polymer layers. The process fully avoids the need of inorganic strong acid and is environmentally benign. An activation energy similar to the experimental one was obtained. The gate‐away: Chemically cross‐linked, adhesive ion‐gel is reported. The mechanism of amino-migration of O-phenylhydroxylamine (1a) was studied. More information can be found in the Aricle by Y. Li et al. The predominance of the ortho rearrangement of 1 clearly distinguishes this process from the Bamberger rearrangement. This reaction has a general application in the preparation of hydroxyazobenzenes and hydroxyazonaphthalenes. After carbon‐coating, it delivers a high reversible capacity in Li‐ion batteries. Do me a solid: Various families of sodium‐ion conductors are evaluated in terms of ionic conductivity, chemical stability, mechanical properties and compatibility with sodium metal. On sulphated zirconia calcined at 973 K, a quantitative reaction is obtained, and the catalyst can be recycled, giving the first example of selective Bamberger rearrangement catalysed by solids.Graphical abstractSelective Bamberger rearrangement has been reported for the first time using solid acids as catalysts. All rights reserved. These results suggest that the Bamberger rearrangement occurs by an SN1 mechanism and that the elimination of water from ArNHO+H2 is rate determining. Read the corresponding Communication at 10.1002/celc.202000305. With a perspective towards practical applications, recent progress of sodium‐based solid‐state batteries is reviewed with respect to galvanostatic cycling and full cell performance. Continuous dehydration of 1,4-butanediol in flowing liquid water with carbon dioxide. Journal of the Chemical Society Perkin Transactions 2. Finding faults: Real‐time monitoring of automotive‐size fuel cells based on electrochemical impedance spectroscopy using a differential impedance analysis data post‐processing approach shows high selectivity to detect prominent fuel cell malfunctions. Find more information on the Altmetric Attention Score and how the score is calculated. Bamberger rearrangement of phenylhydroxylamine (PHA) to para-aminophenol (PAP) is investigated at 353 K, with water as solvent, on a series of solid acid catalysts. Smart coating: A new negative conversion electrode material, manganese (II) metaphosphate Mn(PO3)2 synthesized by a facile solid‐state method is reported here. Despite the excellent efficiency showed by the Si‐BDD electrodes, the CDEO reactor assembled with Ta‐BDD electrodes exposed the highest removal per unit of energy. Layer it on: Anodization of titanium in molten ortho‐phosphoric acid containing small concentrations of ethylene glycol forms high surface area TiO2 layers with a hierarchical structure containing embedded anatase nanocrystallites. The promoting effects of CO 2 and H 2 O on selective hydrogenations in CO 2 /H 2 O biphasic system. O/CO without permission from the American Chemical Society. The American Chemical Society holds a copyright ownership interest in any copyrightable Supporting Bamberger-type rearrangement [1,3] major byproducts- para hydorxy or chloro 1. A Bamberger rearrangement of N-phenylhydroxylamine, Ph-N(OH)H, to p-aminophenol was investigated by DFT calculations for the first time. Bamberger rearrangement of phenylhydroxylamine (PHA) to para-aminophenol (PAP) is investigated at 353 K, with water as solvent, on a series of solid acid catalysts. Enter your email address below and we will send you your username, If the address matches an existing account you will receive an email with instructions to retrieve your username. the Altmetric Attention Score and how the score is calculated. Taking a stand: A free‐standing flexible film composed of carbon nanotubes and polypyrrole coated MnO2 nanowires is prepared via a facile in situ reactive self‐assembly and following vacuum filtration. The slope of Hammett plots (ρ) which was obtained by plotting kobs at [H2SO4] 1.00N against the Hammett σ values was –3.19. and you may need to create a new Wiley Online Library account. Combined and aligned: Different water annealing processes of TiO2 nanotubes are benchmarked against classic thermal annealing in view of photocatalytic pollution degradation. The rate constants for 3-substituted 2-methylphenylhydroxylamines were generally greater than those for 5-substituted 2-methylphenylhydroxylamines. The result shows that steric. The catalysts are characterized by a micro-calorimetric technique using the adsorption of ammonia for acid strength. It also unveils that iron‐doping can significantly reduce the overpotential for OER. Testing diet pills: The electrochemical properties of a modified electrode covered with 2‐[2‐(4‐nitrophenoxy)ethoxy]ethylthio‐substituted porphyrazine/single‐walled carbon nanotube (SWCNT/PzNO2) hybrids are investigated. Information about how to use the RightsLink permission system can be found at References. General and fundamental conclusions for the optimal design of such a sensor are made using a numerical simulation approach. Metallic interplay in Water Splitting: A systematic electrocatalysts development based on Co−Mo−S reveals a deeper understanding of how the ratio of Co : Mo can modulate HER and OER activities. A mechanistic pathway that involves Bamberger rearrangement is proposed. The hybrid electrode exhibits a superior rate capability with 669 mAh g−1 at 200 mA g−1 and 334 mAh g−1 at 5000 mA g−1, and an unprecedented capacity retention rate of 86 % for 1000 cycles at 3000 mA g−1 with a high capacity of 349 mAh g−1. 2 The Cover Feature shows hybrid nitrogen‐doped, carbon‐layer‐constrained, structured cobalt sulfide/carbon nanotubes (NC@CoS2@CNTs) that not only increase electronic conductivity but also inhibit the volume expansion of CoS2, demonstrating excellent capacity and cycle stability. Therefore, the NC@CoS2@CNTs hybrid is deemed to be a promising next‐generation anode for sodium‐ion batteries.
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