Results 71 to 80 of about 729,228 (244)

Obtenção de nanotubos de carbono a partir da reação de decomposição catalítica do metano sobre catalisadores de ferro, cobalto e níquel suportados em alumina [PDF]

, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2013.Este trabalho teve como objetivo a obtenção de nanotubos de carbono através da reação de ...
Araujo, Luiza Rosa de
core  

Atom–Cluster Synergy in Scalable Fe–Ru Dual‐Site Architectures Accelerates Alkaline Hydrogen Evolution

Advanced Materials, EarlyView.
A mechanochemically synthesized dual‐site electrocatalyst (RuNC@Fe1NC) accelerates alkaline hydrogen evolution via atomic‐level spatial decoupling. Oxophilic Fe single atoms effectively dissociate water, while adjacent Ru nanoclusters rapidly recombine hydrogen.
Jae‐Hoon Baek, Seong Hyeon Kweon, Sun Gwan Cha, Se Jung Lee, Jinwoo Baek, Dong Hyeok Kwon, Hojeong Lee, Youngkook Kwon, Sang Kyu Kwak, Jong‐Beom Baek   +9 more
wiley   +1 more source

Nickel-plated copper foam as a scalable catalyst for hydrogen generation in alkaline media

Discover Electrochemistry
The development of effective, affordable catalysts for water splitting is essential to achieving sustainable hydrogen production. Herein, we report the electrochemical synthesis of nickel-plated copper foam (Ni–Cu foam) as a scalable and admirable ...
Manisha Das, Syed Shaheen Shah, Takaya Ogawa   +2 more
doaj   +1 more source

Liquid-phase hydrogenation of sunflower oil over platinum and nickel catalysts: Effects on activity and stereoselectivity

Results in Engineering
This study presents the results of comparative hydrogenation of sunflower oil over a platinum catalyst supported on activated diatomite and an industrial nickel catalyst (Pricat-9910).
Kainaubek Toshtay
doaj   +1 more source

How “Green” is Your Functional Material? Assessing Environmental Impacts of Multi‐Step Synthetic Protocols in Material Sciences at Various Technology Levels

Advanced Materials, EarlyView.
Environmental Synthesis Radar (ESR) evaluates the environmental impact of (early‐stage) multi‐step chemical syntheses, providing a holistic view by using 18 midpoint impact categories. Unlike conventional life‐cycle assessment (LCA) approaches, ESR reveals three complementary metrics: overall impact Vtotal, environmental hotspots VEF, and critical ...
Laura Plein, Alexander Schommer, Florian Dietrich, Moritz Gutsch, Heike Klesper, Kevin Schuller, Lars Jahnke, Jens Leker, Klaus Meerholz   +8 more
wiley   +1 more source

Vapor-Phase Hydrogenation of Levulinic Acid to γ-Valerolactone Over Bi-Functional Ni/HZSM-5 Catalyst

Frontiers in Chemistry, 2018
The hydrogenation of levulinic acid (LA) to γ-valerolactone (GVL) in vapor-phase is economically more viable route if compared to reaction in liquid-phase.
Margarita Popova, Petar Djinović, Alenka Ristić, Hristina Lazarova, Goran Dražić, Albin Pintar, Alina M. Balu, Nataša Novak Tušar, Nataša Novak Tušar   +8 more
doaj   +1 more source

A Cu2S/NiOOH Heterojunction Enables Highly Selective Ammonia‐to‐Nitrite Electrooxidation at Industrially Relevant Current Densities

Advanced Materials, EarlyView.
Cu2S/NiOOH heterojunction enables efficient ammonia electrooxidation coupled with hydrogen evolution. Interfacial electronic modulation of Ni sites promotes selective NH3‐to‐NO2− electrooxidation at high current density. In a membrane electrode assembly, Cu2S/NiOOH maintains over 90% Faradaic efficiency of nitrite at 800 mA cm−2, highlighting its ...
Ke Wang, Hongzhe Anna Xu, Xin Mao, Xuefei Wang, Min Zheng, Chun‐Chuan Kao, Limei Yang, Jiashu Wang, Boming Sun, Shokoofeh Varshooy, Aijun Du, Qi‐Long Zhu, Jian Liu, Zhenguo Huang   +13 more
wiley   +1 more source

The development of a resin-in-pulp process for the recovery of nickel and cobalt from laterite leach slurries [PDF]

, 2005
The processing of laterite ores for the recovery of nickel and cobalt has increased as the reserves of exploitable sulphide ores have become depleted.
Zainol, Zaimawati
core  

Building sustainability: a review of company performance in the commercial real estate and property sector [PDF]

, 2013
The commercial real estate and property sector is a vital part of the Australian economy. Compared to global peers, property companies in Australia and New Zealand are considered to be at the front of the pack in terms of acknowledging, measuring and ...
Tui Swinnen, Schofield, J, Martijn Boersma, Jo-anne Schofield, Swinnen, T, Boersma, M   +5 more
core   +1 more source

Interface‐Mediated Catalysis for Improved Hydrogen Storage in Reactive Hydride Composites

Advanced Materials, EarlyView.
Catalyst–hydride interfaces are engineered in Co@C‐ and Ni@C‐modified 2LiH + MgB2 reactive hydride composites to accelerate hydrogen uptake and release. Multiscale scattering, in‐situ synchrotron radiation powder x‐ray diffraction and density functional theory calculations reveal the structural and electronic origin of the catalytic enhancement ...
Yuanyuan Shang, Pawan Kumar Soni, Han Ge, Weijie Yang, Fahim Karimi, Thi Thu Le, Tamás Simon, Michael Fröba, Jitendra Mata, Joshua King, Hai‐Wen Li, Thomas Klassen, Claudio Pistidda   +12 more
wiley   +1 more source