Zobrazeno 1 - 10
of 4 805
pro vyhledávání: '"noble-metals"'
Autor:
Elena G. Panova, Svyatoslav Yu. Engalychev, Yaroslav Yu. Fadin, Galina A. Oleinikova, Irina Yu. Tikhomirova
Publikováno v:
Записки Горного института, Vol 269, Pp 789-802 (2024)
The content of noble metals and rhenium in the Lower Paleozoic black shales of the eastern Baltic paleobasin in Russia was estimated. Shales are enriched in platinoids (PGM to 0.12 g/t) and rhenium (to 1.54 g/t). The main accessory elements of noble
Externí odkaz:
https://doaj.org/article/914715b8eb004a98bcf34a7d4bfba7a5
Autor:
Yawen Zhan, Guobin Zhang, Junda Shen, Binbin Zhou, Chenghao Zhao, Junmei Guo, Ming Wen, Zhilong Tan, Lirong Zheng, Jian Lu, Yang Yang Li
Publikováno v:
Nano Materials Science, Vol 6, Iss 3, Pp 305-311 (2024)
Surface-enhanced Raman Spectroscopy (SERS) is a nondestructive technique for rapid detection of analytes even at the single-molecule level. However, highly sensitive and reliable SERS substrates are mostly fabricated with complex nanofabrication tech
Externí odkaz:
https://doaj.org/article/8e2de8db3ae64f93a830bc5e467b1a71
Autor:
Maria Lykaki, Evridiki Mandela, Georgios Varvoutis, Athanasios Lampropoulos, George E. Marnellos, Michalis Konsolakis
Publikováno v:
Discover Chemical Engineering, Vol 4, Iss 1, Pp 1-49 (2024)
Abstract The unprecedented increase of atmospheric CO2 concentration and the associated climate change calls for the urgent implementation of CO2 mitigation approaches. Among the various proposed measures, CO2 capture from several industrial point so
Externí odkaz:
https://doaj.org/article/09bf175bfac34b6aae5acaa93e3d7005
Publikováno v:
Molecules, Vol 29, Iss 20, p 4970 (2024)
The solid phase extraction of Au, Ir, Pd, Pt, and Rh on a polymer gel modified with ionic liquid containing methylimidazolium groups (MIA-PG) has been investigated. The positively charged surface of the sorbent is highly suitable for the sorption of
Externí odkaz:
https://doaj.org/article/f0285e160f014d7397c2349b8b56ea41
Publikováno v:
Nanomaterials, Vol 14, Iss 20, p 1654 (2024)
Surface-enhanced Raman scattering (SERS) is vital in many fields because of its high sensitivity, fast response, and fingerprint effect. The surface-enhanced Raman mechanisms are generally electromagnetic enhancement (EM), which is mainly based on no
Externí odkaz:
https://doaj.org/article/c2ebf7b092334e86ab57997c5efeab4a
Publikováno v:
Bibechana, Vol 21, Iss 2 (2024)
Thermodynamic, structural, surface and transport properties of Au-Cu liquid alloy were calculated on the basis of different theoretical modeling equations. The thermodynamic properties, such as excess Gibbs free energy of mixing, enthapy of mixing an
Externí odkaz:
https://doaj.org/article/703f23f7f5fa47d7b16554d21465edbc
Publikováno v:
Advanced Energy & Sustainability Research, Vol 5, Iss 6, Pp n/a-n/a (2024)
Direct ethanol fuel cells (DEFCs) are better than others in commercially used FCs due to easy availability, less toxicity, and C‐2‐type alcohol. Ethanol has a high theoretical efficiency of 97% and is a safe, plentiful, and renewable resource tha
Externí odkaz:
https://doaj.org/article/19ec8007177644aea80bfebe8d98c128
Publikováno v:
Chimica Techno Acta, Vol 11, Iss 2 (2024)
In this work, the photoelectrochemical properties of g-C3N4 modified with Pt, Ir and Ir/Pt bimetallic co-catalysts were studied. All prepared photoelectrodes were tested in a two-electrode cell by cyclic voltammetry, impedance spectroscopy, and the M
Externí odkaz:
https://doaj.org/article/d95455f3e8324635a5b9fc4f068f7d79
Publikováno v:
Metals, Vol 14, Iss 9, p 990 (2024)
This study explores the impact of nitrate ions on the efficiency of cementing noble metals from diluted waste solutions at a temperature of 30 °C. The research involved measuring the effectiveness of different cementing metals (such as Zn, Al, Mg, a
Externí odkaz:
https://doaj.org/article/b12ab2f7bec549d4a00fb666b9d53e06