Results 31 to 40 of about 20,169 (249)

Electronegativity‐Guided Site Differentiation in High‐Entropy Alloy for pH‐Universal Hydrogen Evolution Reactions

Angewandte Chemie, EarlyView.
Electronegativity‐guided site differentiation is realized in a CoNiCuMoW high‐entropy alloy, where Co/Ni sites optimize hydrogen binding strength, Mo/W sites promote water dissociation, and Cu‐associated sites contribute to balanced hydrogen adsorption.
Yutong Wu, Shuhao Wang, Soshan Cheong, Liang He, Chun‐Wai Chang, Zhenxing Feng, Cheng‐jun Sun, Chuan Zhao   +7 more
wiley   +2 more sources

Public Participation Using 3D Web-Based City Models: Opportunities for E-Participation in Kisumu, Kenya

ISPRS International Journal of Geo-Information, 2018
Public participation is significant for the success of any urban planning project. However, most members of the general public are not planning professionals and may not understand the technical details of a 2D paper-based plan, which might hamper their ...
Jacob R. Onyimbi, Mila Koeva, Johannes Flacke   +2 more
doaj   +1 more source

Analysis of Platinum Group Metal (PGM) Topic in Inorganic Chemistry Course in Indonesia

EduChemia, 2023
Platinum Group Metals (PGM) is one of the topics in elemental chemistry in higher education that is important to teach, considering its major role in various industries. PGM is important in various industrial applications, especially as a catalyst in the
Indah Langitasari, Ahmad Mudzakir, Sunyono Sunyono, Asep Wahyu Nugraha   +3 more
doaj   +1 more source

3D Nanorod‐Shaped Binder‐Free Ni1−xFexCo2O4 Anodes Demonstrate High Performance and Stable Operation Under Accelerated Stress Tests in Anion Exchange Membrane Water Electrolysis

Advanced Materials Interfaces, EarlyView.
3D shaping of Ni1‐xFexCo2O4 spinel electrocatalyst to form high aspect ratio nanorods, made of 25 nm grain size particles and directly grown on Nickel felt, is proposed to improve the performance of industrial catalysts based on group‐VIII transition‐metal oxides.
Ataollah Niyati, Ombretta Paladino
wiley   +1 more source

Diblock Copolymer Nanoparticles Act as Nanoreactors for the Synthesis of Sterically‐Stabilized Inorganic Oxide Particles in Non‐polar Media

Angewandte Chemie, EarlyView.
Poly(lauryl methacrylate)‐poly(2‐hydroxyethyl methacrylate) (PLMA‐PHEMA) diblock copolymer nanoparticles prepared in non‐polar media serve as nanoreactors for the in situ synthesis of silica from tetraethyl orthosilicate (TEOS). A silica mass loading of 17% as judged by thermogravimetric analysis (TGA) produces a highly transparent dispersion, and ...
Priyanka Chohan, Andi Xie, Oleksandr O. Mykhaylyk, Steven P. Armes, Giles M. Prentice, David J. Atkinson, Andrew J. Smith   +6 more
wiley   +2 more sources

Composition and Mineralogical Features of Ultramafic Rocks of Eastern Part of Southern Kraka Massif (South Urals)

Georesursy
The paper presents new data on the structure and composition of ultramafic rocks in the eastern part of the South Kraka massif. It is shown that the studied area is composed predominantly of spinel peridotites, among which the main role belongs to ...
D. E. Saveliev, A. I. Biembetov, T. D. Shabutdinov, A. A. Samigullin, R. A. Gataullin   +4 more
doaj   +1 more source

Study on the Reaction Mechanism of RuOx and Its Enhanced Hydrogen Evolution Reaction Activity

Advanced Science, EarlyView.
In situ Raman spectroscopy and DFT calculations reveal that, prior to the onset of HER, the surface of RuOx undergoes reversible reduction and structural reconstruction. The resulting Ru(II)O/Ru(IV)O2 configuration is identified as the true catalytically active species.
Liquan Zhang, Haobo Dong, Jianrui Feng, Longxiang Liu, Fei Guo, Liqun Kang, Guoliang Chai, Mohamed A. Ghanem, Xinde Chen, Ivan P. Parkin   +9 more
wiley   +1 more source

A Molten Salt Extraction Method for Palladium Recovery via the CaPd2 Intermetallic Compound

Advanced Science, EarlyView.
A designed Ca → CaPd2 → Pd pathway enables acid–free palladium recovery in molten salt. Calcium alloying forms anionic CaPd2, which is selectively oxidized by iodine from CaI2 to yield high–purity metallic Pd. ABSTRACT To address palladium scarcity and the low efficiency of conventional recovery processes, this work presents a molten–salt extraction ...
Jiapeng Zhang, Dengjie Yan, Muwen Chen, Baoqiang Xu, Bin Yang, Bingyi Song, Lingxin Kong   +6 more
wiley   +1 more source

Machine Learning–Guided Surface Strain Engineering in Connected Platinum–Nickel Nanoparticle Catalysts for Advanced Oxygen Reduction Performance

Advanced Science, EarlyView.
Machine learning‐guided strain engineering enables highly active, durable, support‐free Pt–Ni nanonetwork catalysts for the oxygen reduction reaction. Analysis of a Pt‐based catalyst dataset identifies surface compressive strain as an effective descriptor associated with enhanced activity and provided practical design guidelines.
Aparna Chitra Sudheer, Gopinathan M. Anilkumar, Hidenori Kuroki, Yuuki Sugawara, Takeo Yamaguchi   +4 more
wiley   +1 more source

PGM in chromitites of Kraka massifs (the Southern Urals): diversity and origin

Georesursy
The paper provides results of study of platinum group minerals (PGMs) from 18 ore occurrences and deposits of the Kraka massifs, most of these located in ultramafic rocks of the upper mantle section (15), and several occurrences in a crust-mantle ...
D. E. Saveliev
doaj   +1 more source