Results 91 to 100 of about 4,829,668 (289)

Chlorine‐Functionalized Silane‐Modified Copper Electrocatalyst for Enhanced CO2 Reduction to Multi‐Carbon Products

Advanced Science, EarlyView.
A chlorine‐functionalized silane modifier (CPTMS) is introduced to cooperatively regulate CO2 reduction to C2+ products on Cu‐based catalysts. Dual‐functional interface sequentially enhances CO2 activation, intermediates protonation and C─C coupling, delivering a 5‐fold increase in C2+ faradaic efficiency (FE, 75% vs.
Ying Ying Ch'ng, Sankhadip Saha, Ming Zhang, Shujie Zhou, Lixue Jiang, Putri Ramadhany, Jitraporn Vongsvivut, Adrian Cernescu, Priyank Vijaya Kumar, Yihao Shan, Zhipeng Ma, Xiaoxuan Luo, Rahman Daiyan, Zhaojun Han, Rose Amal   +14 more
wiley   +1 more source

Mechanism of cobalt-catalyzed CO hydrogenation: 1. Methanation [PDF]

, 2017
The mechanism of CO hydrogenation to CH4 at 260 °C on a cobalt catalyst is investigated using steady-state isotopic transient kinetic analysis (SSITKA) and backward and forward chemical transient kinetic analysis (CTKA).
Pestman, Robert, Zijlstra, B Bart, Bart Zijlstra, Filot, Ivo A.W.; id_orcid, Filot, IAW Ivo, Chen, W Wei, Emiel J. M. Hensen, Zijlstra, Bart, Robert Pestman, Chen, Wei, Hensen, EJM Emiel, Ivo A. W. Filot, Pestman, R Robert, Filot, Ivo A.W., Wei Chen, Hensen, Emiel J.M.   +15 more
core   +2 more sources

The Plant‐to‐Plant Circular Strategy: Coupling Photodegradation and Phytoremediation With Plant‐Based Nanomaterials for Plastic Degradation

Advanced Science, EarlyView.
Plant‐based nanomaterials derived from alfalfa serve as dual‐function catalysts, coupling photodegradation and phytoremediation to degrade polyethylene under UV‐A light and in soil. The nanomaterials work synergistically with alfalfa and soil microbes, achieving efficient plastic breakdown without trophic transfer.
Haoran Liu, Lena Ciric, Yuheng Wang, Ziru Pei, Manpreet Bhatti   +4 more
wiley   +1 more source

Facile preparation of a Ni/MgAl2O4 catalyst with high surface area: enhancement in activity and stability for CO methanation

Main Group Metal Chemistry, 2018
To enhance the performance of anti-coking and anti-sintering of the Ni-based catalysts during the reaction process of CO methanation, we synthesized a group of catalysts denoted as “Ni-xMgAl2O4” via the modified co-precipitation method utilizing carbon ...
Wang Shengjia, Tian Zhiwei, Liu Qing, Qiao Yingyun, Tian Yuanyu   +4 more
doaj   +1 more source

Facile synthesis of ordered mesoporous Ni-Zr-Al catalysts with high hydrothermal stability for CO methanation

, 2015
For supported nickel catalysts used for catalytic reactions with presence of water vapor, it is a great challenge to let them have high resistance to sintering, coking as well as water vapor simultaneously.
Xu, Guangwen, Li, Huifang, Zhong, Ziyi, Gu, Fangna, Su, Fabing, Liu, Qing, Jin, Guojing, Gao, Feng, Wang, Xiaoyan   +8 more
core   +1 more source

Intrinsic Phonons as a Dynamic Control Knob for Catalytic Reactivity in 2D Materials

Advanced Science, EarlyView.
Intrinsic phonon excitations are demonstrated to serve as a dynamic control knob for catalytic reactivity in 2D materials. Mode‐selective lattice vibrations reconstruct the electronic structure, lower oxygen evolution reaction barriers, establishing a phonon‐engineering paradigm for dynamically regulating electrocatalysis beyond conventional static ...
Kai Ren, Feifan Wang, Yong‐Wei Zhang, Tianyang Liu, Liangzhi Kou, Yu Jing   +5 more
wiley   +1 more source

Direct biogas methanation at moderate pressure: Mechanism investigation over Ni-based catalysts

Journal of CO2 Utilization
Direct upgrading of biogas by CO2 methanation aims to produce a gas to be injected into the grid. Operating at moderate pressures favors thermodynamics, but catalyst surface and reaction mechanism under realistic conditions are not well investigated.
Ilenia Giarnieri, Sining Chen, Daniel Ballesteros-Plata, Juan P. Holgado, Francesco Maluta, Alfonso Caballero, Francesca Ospitali, Enrique Rodríguez-Castellón, Giuseppe Fornasari, Andrew M. Beale, Patricia Benito   +10 more
doaj   +1 more source

Ru‐Doping‐Engineered Oxygen Vacancies in MoO3‐x Nanostructured Films With Ultrahigh Capacitance for Flexible Asymmetric Supercapacitors

Advanced Science, EarlyView.
Ru‐doping‐induced defect engineering enables freestanding Ru–MoO3‐x flexible films with enriched oxygen vacancies, modulated band structure, and enhanced charge transport. The optimized electrode delivers ultrahigh capacitance approaching the theoretical limit of MoO3, while assembled asymmetric supercapacitors exhibit high energy density, wide‐voltage
Xiaoqing Bin, Minhao Sheng, Norman C.‐R. Chen, Xiangyang Liu, Yingji Zhao, Yingyi Liao, Wenxiu Que, Yusuke Asakura, Yusuke Yamauchi   +8 more
wiley   +1 more source

Flame Synthesized Co–CeO₂ Catalysts for CO₂ Methanation

ACS Catalysis
Achieving selective conversion of CO2 to CO, CH4, or CH3OH remains a key challenge in catalyst design for CO2 hydrogenation. Site-specific activity at the metal-support interface plays a crucial role, motivating efforts to optimize metal particles and their interactions with supports.
Angelina Evtushkova, Jason M.J.J. Heinrichs, Alexander Parastaev, Nikolay Kosinov, Emiel J. M. Hensen   +4 more
openaire   +3 more sources

CO methanation on ordered mesoporous Ni-Cr-Al catalysts: Effects of the catalyst structure and Cr promoter on the catalytic

, 2016
CO methanation is the main route in industry to produce synthetic natural gas (SNG), and the conventional Ni-based catalysts for this reaction often deactivate severely because of sintering of the Ni particles and coke formation on them.
Xu, Guangwen, Zhong, Ziyi, Li, Huifang, Gu, Fangna, Lu, Xiaopeng, Su, Fabing, Liu, Qing, Wang, Xiaoyan   +7 more
core   +1 more source