Results 61 to 70 of about 143,072 (310)

Atomic Tuning of Metal‐Support Interactions for Pathway‐Selective CO2 Photoreduction on TiO2

Advanced Science, EarlyView.
Single‐atom Fe and Cu catalysts anchored on TiO2 steer photocatalytic CO2 reduction toward distinct pathways. Fe sites favor rapid *CO desorption and selective CO formation, whereas Cu sites stabilize *CHO intermediates, enabling deep reduction and C─C coupling. Combined spectroscopy and DFT calculations reveal how metal–support interactions and oxygen
Dongyun Kim, Wonjae Ko, Byoung‐Hoon Lee, Sanghoon Kim, Yun Do Kim, Hyunsoo Ahn, Yoon Jung, Chan Woo Lee, Kug‐Seung Lee, Eunhee Gong, Junho Lee, Minho Kim, Taeghwan Hyeon, Su‐Il In   +13 more
wiley   +1 more source

Topology‐Dependent Coke Formation in the Catalytic Pyrolysis of Phenol Over HFAU and HZSM‐5 Zeolites

Angewandte Chemie, EarlyView.
The coke formation and speciation during the catalytic pyrolysis of lignin over different zeolite topologies were studied with a combination of operando EPR spectroscopy and ex situ pulsed techniques aided with DFT calculations. Operando EPR data showed that the coke formation in HFAU is fast compared to HZSM‐5.
Jörg W. A. Fischer, Allen Puente‐Urbina, Zeyou Pan, Mikhail Agrachev, Patrick Hemberger, Gunnar Jeschke, Jeroen A. van Bokhoven   +6 more
wiley   +2 more sources

General method for prediction of thermal conductivity for well-characterized hydrocarbon mixtures and fuels up to extreme conditions using entropy scaling [PDF]

, 2019
A general and efficient technique is developed to predict the thermal conductivity of well-characterized hydrocarbon mixtures, rocket propellant (RP) fuels, and jet fuels up to high temperatures and high pressures (HTHP).
Akhmedova-Azizova, Arcoumanis, Arikol, Ashutosh Gupta, Assael, Assael, Assael, Assael, Assael, Baroncini, Baroncini, Baroncini, Baroncini, Battistoni, Briggs, Burgess, Chickos, Chung, Chung, Deng, Fareleira, Fareleira, Fouad, Gharagheizi, Gharagheizi, Gharagheizi, Giannadakis, Gross, Guo, Hopp, Houman B. Rokni, Huber, Huber, Huber, Jia, Joshua D. Moore, Kashiwagi, Kesler, Lashkarbolooki, Latini, Latini, Lazzús, Liang, Lötgering-Lin, Manolis Gavaises, Mark A. McHugh, Mathias, Nagvekar, Park, Pomraning, Rajendar R. Mallepally, Ramos-Pallares, Ramos-Pallares, Rastorguev, Rodenbush, Rokni, Rokni, Rosenfeld, Roy, Sastri, Sauer, Schilling, Schmidt, Stiel, Tamouza, Teja, Teja, Thi, Tihic, Wada, Wakeham, Wu, Xu   +72 more
core   +1 more source

Efficient Electrocatalytic Conversion of CO2 to Pure Formic Acid Solutions via Strain‐Engineered Bismuth Nanosheets

Advanced Science, EarlyView.
Tensile‐strained bismuth nanosheets (TS‐BiNs) achieve a formate Faradaic efficiency of 92% at −1000 mA cm−2 and enable stable production of pure formic acid (HCOOH) in a solid‐state electrolyte reactor. Theoretical calculations reveal that the introduced strain lowers the energy barrier for *OCHO intermediate formation, fundamentally enhancing the ...
Shiqi Li, Yuefeng Zhang, Panzhe Qiao, Cuo Wu, Xinya Tian, Yufeng Xu, Yun Zhang, Peng Wang, Tingting Li, Muhammad Afaq, Xinlin Luo, Tang Wang, Chunxiao Liu, Zi‐You Yu, Chuan Xia, Min‐Rui Gao, Zhen‐Yu Wu   +16 more
wiley   +1 more source

Room‐Temperature Gas‐Phase CO2‐to‐C3 Coupling by a 4f‐Aromatic Cluster

Angewandte Chemie, EarlyView.
We engineered a 4f metalla aromatic cluster, PrB2C2−, that enables efficient sequential C−C coupling with CO2 at room temperature, yielding a linear C3 backbone. This system provides a complete theoretical catalytic cycle and establishes a new design principle for lanthanide mediated CO2 activation.
Feng‐Xiang Zhang, Xiao‐Wang Li, Ning‐Zheng Li, Sheng‐Gui He, Yu‐Chen Zhang, Li‐Li Xing, Donald G. Truhlar, Jia‐Bi Ma   +7 more
wiley   +2 more sources

ANALYSIS OF HYDROCARBON TREATING SYSTEM TO THE EMISSION OFF SPARK-IGNITION FOUR-STROKE ENGINE

Media Mesin, 2016
The reduction of carbon monoxide (CO), unburnthydrocarbon (UHC) emission and fuel consumption on spark-ignition four-stroke engine is continuously attempted. The purposes from this research were to determine the effect of Hydrocarbon Treating System (HTS)
Binyamin Binyamin, Subroto Subroto, Tri Tjahjono   +2 more
doaj  

Fire-extinguishing efficiency and environmental performance of foam for extinguishing a warehouse space with oil [PDF]

E3S Web of Conferences, 2019
This article analyzes the fire extinguishing efficiency of hydrocarbon and fluorinated film-forming foaming agent. It was revealed that fluorinated blowing agents have a number of significant advantages over hydrocarbon.
Degaev Evgeniy
doaj   +1 more source

Studies of Thermochemical Heat Recovery of Exhaust Gases of Furnaces [PDF]

, 2017
The review of schemes and methods of thermochemical heat recovery (TCR) of exhaust flue gas for different power plants operating on hydrocarbon fuels have been performed.
Gubinskiy, M.V., Nikitina, I.P., Timoshenko, Yevhen   +2 more
core  

Dynamic Regulation of Supramolecular Chirality in an Amphiphilic Dimeric Macrocycle Through Azobenzene‐Based Photoisomerization

Advanced Science, EarlyView.
A stimuli‐responsive supramolecular system has been rationally designed enabling hierarchical control over supramolecular handedness. This hybrid architecture retains orthogonal host‐guest properties and displays unique amphiphilicity‐directed chiral self‐assembly.
Minzan Zuo, Yi Shi, Xueqi Tian, Tao Zhang, Jianmin Jiao, Yuhong Shen, Yutong Xie, Jianwen Wei, Xiao‐Yu Hu   +8 more
wiley   +1 more source

Fire extinguishing efficiency of hydrocarbon and fluorinated film-forming foaming agent [PDF]

E3S Web of Conferences, 2019
This article analyzes the fire extinguishing efficiency of hydrocarbon and fluorinated film-forming foaming agent. It was revealed that fluorinated blowing agents have a number of significant advantages over hydrocarbon.
Vlasov Nikolay, Melnikov Artem
doaj   +1 more source