Results 21 to 30 of about 196,302 (193)

Rh/CeO2+Pt/Ba/Mn/Al2O3 model NSR catalysts: Effect of Rh/Pt weight ratio

Catalysis Communications, 2021
A series of model NOx storage-reduction (NSR) catalysts with different Rh/Pt weight ratios were prepared independently by wet impregnation and then mechanically mixed to investigate the effect of the Rh/Pt weight ratio on the overall NOx removal ...
Dezhi Ren, Chengxiong Wang, Dongxia Yang, Yangjia Rong, Junchen Du, Yunkun Zhao   +5 more
doaj   +1 more source

Pt-Sn/SAPO-11: A preferred high-performance, stable, and regenerable hydrogenation catalyst for Jatropha oil

Fuel Processing Technology
The sustainable aviation fuel derived from Jatropha oil helps to reduce the dependence of the aviation industry on fossil energy and decrease total carbon emissions.
Miaoxin Guo, Qiang Liu, Junchen Du, Feng Feng, Yubao Chen, Aimin Zhang   +5 more
doaj   +1 more source

Hydrophilic non-precious metal nitrogen-doped carbon electrocatalysts for enhanced efficiency in oxygen reduction reaction [PDF]

, 2015
Exploring the role of surface hydrophilicity of non-precious metal N-doped carbon electrocatalysts in electrocatalysis is challenging. Herein we discover an ultra-hydrophilic non-precious carbon electrocatalyst, showing enhanced catalysis efficiency on ...
Bachmatiuk, Alicja, Hao, Guang-Ping, Kaskel, Stefan, Krause, Simon, Oschatz, Martin, Sahraie, Nastaran Ranjbar, Strasser, Peter, Zhang, Qiang   +7 more
core   +2 more sources

MATERIAL COMPOSITION, ISOTOPIC-GEOCHRONOLOGICAL STUDIES AND METALLOGENIC POTENTIAL OF GRANITES OF THE KHOTUGU-EYEKIT MASSIF AND RHYOLITE DIKE OF THE SOLOLI UPLIFT

Геодинамика и тектонофизика
The paper describes the petrographic and petro-geochemical composition of granitoids of the Khotugu-Eyekit massif and the rhyolite dike of the Sololi uplift. It was revealed that the rocks of the massif are represented by microcline granites.
A. I. Ivanov, B. B. Gerasimov, M. S. Ivanov, A. I. Zhuravlev, D. A. Vasiliev, A. I. Kondratiev   +5 more
doaj   +1 more source

Process for making a noble metal on tin oxide catalyst [PDF]

, 1989
A quantity of reagent grade tin metal or compound, chloride-free, and high-surface-area silica spheres are placed in deionized water, followed by deaerating the mixture by boiling and adding an oxidizing agent, such as nitric acid.
Davis, Patricia, Miller, Irvin M., Upchurch, Billy T.   +2 more
core   +1 more source

Geology, fluid inclusions, mineral and (S-O) isotope chemistry of the Badran orogenic Au deposit, Yana-Kolyma belt, eastern Siberia: implications for ore genesis

Frontiers in Earth Science
The Badran orogenic gold deposit is located in the Yana-Kolyma belt, Eastern Siberia; it has proven reserves of ∼9.3 t of gold and an average grade of 7.8 ppm. The total gold production at the Badran deposit since 1984 amounts to ∼34 t.
Valery Fridovsky, Sergey Kryazhev, Sergey Kryazhev, Lena Polufuntikova, Maxim Kudrin, Galina Anisimova   +5 more
doaj   +1 more source

Ichnofossils of the Permian-Triassic sediments in the Southern Verkhoyansk Region (Tiryakh-Kobyume section, Republic of Sakha (Yakutia), Russia)

Учёные записки Казанского университета: Серия Естественные науки, 2021
The paper presents the first detailed evidence for the Permian and Early Triassic ichnofossils of the Southern Verkhoyansk Region. The possibility of using ichnofossils for reconstruction of terrigenous sedimentation at high latitudes, including ...
D.N. Miftakhutdinova, R.V. Kutygin
doaj   +1 more source

Nanoporous Copper-Nickel - Macroscopic bodies of a strong and deformable nanoporous base metal by dealloying

, 2018
Uniform macroscopic samples of nanoporous metal with high deformability have so far been limited to precious metals such as Au, Pd and Pt. Here we propose nanoporous Copper-Nickel (npCN) as a nanoporous base metal that can be made with mm dimensions and ...
Lührs, Lukas, Weissmüller, Jörg
core   +1 more source

Metal-Free Dihydrogen Oxidation by a Borenium Cation:A Combined Electrochemical/Frustrated Lewis Pair Approach [PDF]

, 2014
In order to use H2 as a clean source of electricity, prohibitively rare and expensive precious metal electrocatalysts, such as Pt, are often used to overcome the large oxidative voltage required to convert H2 into 2 H+ and 2 e−. Herein, we report a metal-
Bard, Chiu, Clark, Clark, Eisenberger, Erker, Farrell, Jutzi, Lawrence, Lawrence, Matsumoto, Matsumoto, Rablen, Stephan, Ueng, Welch   +15 more
core   +1 more source

Coenzyme-based elastomeric adhesive patch as iron ion capturer to regulate iron metabolism for diabetic oral ulcer repair

Bioactive Materials
Iron metabolism imbalance under high-glucose and nutrient-rich conditions is a key factor inhibiting the healing of diabetic oral ulcers. This study confirms the extensive iron accumulation and ferroptosis occurrence in diabetic oral ulcers.
Rong Yang, Jiaxing Shao, Qian Zhang, Yage Sun, Xinrui Zhao, Chunyan Cui, Wenguang Liu   +6 more
doaj   +1 more source