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RSC Adv 2022 Mar 11;12(13):7996-8002. Epub 2022 Mar 11.

Dept. Interface Design, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH Berlin Germany

Combinatorial material science crucially depends on robust, high-throughput characterization methods. While X-ray photoelectron spectroscopy (XPS) may provide detailed information about chemical and electronic properties, it is a time-consuming technique and, therefore, is not viewed as a high-throughput method. Here we present preliminary XPS data of 169 measurement spots on a combinatorial 72 × 72 cm Cu Ni O compositional library to explore how characterization and evaluation routines can be optimized to improve throughput in XPS for combinatorial studies. Read More

J Colloid Interface Sci 2022 Jun 17;616:347-359. Epub 2022 Feb 17.

MOE Key Laboratory of Material Physics and Chemistry Under Extraordinary Conditions, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, China. Electronic address:

Flexible N-doped carbon fibers decorated with Cu/CuO particles (NCF-Cu/CuO) are synthesized through electrospinning, preoxidation and carbonization processes in this work. The characterization results indicate that HKUST-1 is embedded in polyacrylonitrile (PAN) fibers, and a special structure in which Cu/CuO particles are strung together by carbon fibers is formed after preoxidation and carbonization. NCF-Cu/CuO is mixed with paraffin in different mass ratios (5%, 10%, 15%, 20% and 25%) to study electromagnetic (EM) wave absorption performance at frequencies from 2. Read More

J Colloid Interface Sci 2021 Jul 10;594:254-264. Epub 2021 Mar 10.

State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Science, 568 Zhongshan Road, Dalian 116023, China. Electronic address:

Developing low-cost non-precious metals as efficient catalysts for the reduction of toxic 4-nitrophenol (4-NP) to useful 4-aminophenol (4-AP) have received increasing attention in recent years. Herein, a novel and efficient Cu-based catalyst Cu/[email protected] (carbon doped with nitrogen) was prepared via a facile method from pyrolysis of bi-ligand MOFs material Cu(BDC)(BPY) (BDC = p-Phthalic acid, BPY = 4,4'-bipyridyl) in Ar atmosphere. Characterization results revealed that N doping in carbon matrix favors the development of mesoporous structure, the formation of more defect sites in carbon matrix, better dispersion of Cu/CuO nano particles, and maintenance of Cu species in metallic Cu state (the active site), all of which contribute to a superior catalytic activity for 4-NP reduction with a pseudo-first-order rate constant as high as 0. Read More

ACS Appl Mater Interfaces 2021 Feb 9;13(7):8191-8205. Epub 2021 Feb 9.

Department of Applied Chemistry, School of Engineering, University of Toyama, Gofuku 3190, Toyama 930-8555, Japan.

Cu/ZnO catalysts with varied Cu/(Cu + Zn) molar ratios were prepared by a facile solid-state method. The Cu/(Cu + Zn) molar ratio displayed a significant effect on the oxygen vacancy formation of the calcined catalysts, thereby influencing the CuO-ZnO interaction and the reducibility of CuO. The Cu/(Cu + Zn) molar ratio also exhibited a significant effect on Cu surface area, oxygen vacancy, the ratio of ZnO(002) plane to ZnO(100) plane, as well as the basicity and acidity of the reduced catalysts, thereby affecting the catalytic performance for low-temperature methanol synthesis from syngas containing CO. Read More

J Colloid Interface Sci 2020 Oct 11;578:726-737. Epub 2020 Jun 11.

Gas Processing Center, Qatar University, P. O. Box 2713, Doha, Qatar.

Herein we report a catalyst consisting of CuAg/CuO nanoparticles (NPs), synthesized on the two-dimensional carbon nitride (CN) surface via galvanic exchange route for electrocatalytic methanol oxidation and carbon dioxide reduction. The lower reduction potential of copper ([Cu(aq) + e → Cu(s)], + 0.52 eV) compared to Ag ([Ag(aq) + e → Ag(s)], +0. Read More