Results 141 to 150 of about 101,670 (302)

Metal‐Free Covalent Organic Frameworks for Photocatalytic CO2 Reduction

ChemistryEurope, EarlyView.
This review presents an environmentally sustainable strategy to address the critical issue of escalating atmospheric CO2 levels. It explores the application of metal‐free covalent organic frameworks in a photocatalytic approach, offering a green and efficient strategy for carbon dioxide reduction and contributing to climate change mitigation.
Supriti Dutta, Akhtar Alam, Pekham Chakrabortty, Pradip Pachfule   +3 more
wiley   +1 more source

Synthesis and Characterization of π‐Extended Azulenes via Nucleophilic Substitution and Intramolecular Cyclization of 5‐Alkynyl‐6‐Fluoroazulenes

ChemistryEurope, EarlyView.
A modular synthetic approach enables the preparation of azulene‐fused heterocycles via nucleophilic aromatic substitution followed by intramolecular cyclization of alkynyl fluoroazulenes. The method allows the incorporation of various heteroatoms (N, O, S, Se, and Te), leading to structurally diverse heteroannulated azulenes.
Martin C. Dietl, Matthias Scherr, Christopher Hüßler, Henrik T. Habeck, Carmen L. M. Henel, Jürgen Graf, Frank Rominger, Matthias Rudolph, A. Stephen K. Hashmi   +8 more
wiley   +1 more source

CO2 Electroreduction to Multicarbon Products in Acidic Electrolyte via Structural Reconstruction of a Molybdenum Porphyrin Dimer

Advanced Energy & Sustainability Research
The electrochemical reduction of CO2 into valuable hydrocarbon fuels offers a promising pathway for sustainable energy. This study develops a novel catalyst for this reaction: an oxo‐molybdenum dimer synthesized via a solid‐phase reaction, characterized ...
Tesfaye Alamirew Dessie, Yohannes Ayele Awoke, Woldesenbet Bafe Dilebo, Keseven Lakshmanan, Fikiru Temesgen Angerasa, Chia‐Yu Chang, Yao‐Chang Lee, Nozomu Hiraoka, Nigus Gabbiye Habtu, Meng‐Che Tsai, Wei‐Nien Su, Bing Joe Hwang   +11 more
doaj   +1 more source

Establishing Indium in Frustrated Lewis Pair Chemistry: From Synthesis to Catalytic Applications

ChemistryEurope, EarlyView.
Not that hard: The effects of chemical hardness of the soft FLP tBu2InCH2PtBu2 and its pyridine‐adduct tBu2In(py)CH2PtBu2 were examined in adduct formation reactions toward H2, CO2, and CS2. The frustrated Lewis pair shows catalytic activity in the reduction of CO2 with pinacolborane.
Daniel N. Heuer, Jan‐Hendrik Lamm, Hans‐Georg Stammler, Beate Neumann, Andreas Mix, Yury V. Vishnevskiy, Norbert W. Mitzel   +6 more
wiley   +1 more source

Practical Investigation of Single Cylinder Spark Ignition Engine Performance Operated With Various Hydrocarbon Fuels and Hydrogen

Journal of Engineering and Sustainable Development, 2010
Hydrogen, natural gas, and liquefied petroleum gas are the most important alternative fuels for gasoline in spark-ignition engines, for many reasons, such as the large world reserve of these gases, high heating value, high octane number, low emissions ...
Miqdam T. Chaichan, Adel M. Saleh
doaj  

Simultaneous Photoactivation of Copper and Ti‐Doped CeO2−x Enables Optimal Acceleration of the RWGS Reaction

Carbon Energy, EarlyView.
A combination of visible light and thermal energy accelerates the CO formation rate up to 57 times compared to dark conditions using a 3Cu/CeTiO2−x catalyst. Kinetic analysis, as well as steady state and transient spectroscopy, was applied under photocatalytic conditions to analyze and disentangle the reaction channels under dark and illuminated ...
Miha Okorn, Kristijan Lorber, Matjaž Mazaj, Nataša Novak Tušar, Petar Djinović   +4 more
wiley   +1 more source

Hydrocarbon Fuels [PDF]

, 1975
openaire   +1 more source

Precision Catalysis in Dehydrogenation of Liquid Organic Hydrogen Carriers: Molecular Structure‐Geometry‐Electronic Interplay for Enhanced Hydrogen Evolution

Carbon Energy, EarlyView.
Atomic‐scale design principles for LOHC dehydrogenation: Tailoring geometric and electronic effects in metal catalysts to bridge the molecular structure of LOHC and dehydrogenation performance. ABSTRACT The advancement of hydrogen‐based energy systems necessitates innovative solutions for safe, efficient hydrogen storage and transportation.
Yongxiao Tuo, Jingying Qu, Huailu Sun, Hongwei Gai, Xiangyuan Qu, Junlun Zhu, Xiaohui Sun, De Chen, Xiang Feng   +8 more
wiley   +1 more source

Synergistic CO2‐Philic/H2O‐Phobic Interface Engineering in PEDOT/NHCS/Au Composite for High‐Efficiency CO2 Electroreduction With Suppressed Hydrogen Evolution Reaction

Carbon Energy, EarlyView.
The mechanism of CO2RR on NHCS/Au and PEDOT/NHCS/Au. ABSTRACT The electrocatalytic CO2 reduction reaction (CO2RR) offers a viable solution for the conversion and storage of renewable energy. Utilizing electronic metal‐support interactions (EMSI) to adjust the electronic properties of metal catalysts has demonstrated effectiveness in enabling highly ...
Nuramina Abdukirim, Tursun Abdiryim, Ruxangul Jamal, Shuyue Xie, Zhigang Wang, Yaoming Yu, Zhouliang Tan, Feng Xu   +7 more
wiley   +1 more source

Asymmetric‐Coordinated Indium Single Atoms for Highly Selective Photocatalytic CO2 Reduction

Carbon Energy, EarlyView.
This work develops an indium single‐atom photocatalyst (In‐NTO) featuring unique Inδ⁺–N3O2 coordination sites for highly selective CO2 photoreduction. The specific atomic interface steers the reaction pathway exclusively toward CO (95.9% selectivity) by lowering the overall energy barrier and converting the critical *CO protonation step from ...
Fengyu Tian, Yaohao Li, Xuemin Yan, Huiwen Zhu, Jiayu Liang, Honglei Zhang, Ning Han   +6 more
wiley   +1 more source