Results 91 to 100 of about 143,821 (315)

Co1/Ru Single‐Atom Alloy Catalyst for Sustainable Polypropylene Hydrogenolysis to Long‐Chain Liquid Products

Advanced Materials, EarlyView.
A titania‐supported Co1/Ru single‐atom alloy catalyst enables efficient polypropylene hydrogenolysis. Ru─Co─Ru motifs maintain Ru activity while suppressing excessive chain scission to gaseous products. Both virgin and waste plastics achieve high, environmentally and economically optimal C11+ liquid yields, supporting sustainable chemical recycling ...
Yuzhen Ge, Yimeng Jin, Alexandra Krestnikova, Sibei Zou, Antonio J. Martín, Gonzalo Guillén‐Gosálbez, Javier Pérez‐Ramírez   +6 more
wiley   +1 more source

Effect of waste cooking-oil biodiesel on performance and exhaust emissions of a diesel engine

Egyptian Journal of Petroleum, 2018
The ever increase in global energy demand, consumption of depletable fossil fuels, exhaust emissions and global warming, all these led to search about alternative fuels. Biodiesel was produced from waste cooking-oil by transesterification process. Blends
K.A. Abed, A.K. El Morsi, M.M. Sayed, A.A. El Shaib, M.S. Gad   +4 more
doaj   +1 more source

Performance and Exhaust Emissions in a Natural-Gas Fueled Dual-Fuel Engine

JSME International Journal Series B, 2000
In order to establish the optimum fueling in a natural gas fueled dual fuel engine, tests were made for some operational parameters and their combination on the engine performances and the exhaust emissions. The results show that the gas oil quantity should be increased and gas oil injection timing should be advanced to suppress unburned hydrocarbon ...
SHIOJI, Masahiro, ISHIYAMA, Takuji, IKEGAMI, Makoto, MITANI, Shinichi, SHIBATA, Hiroaki   +4 more
openaire   +3 more sources

Variations in carbon emissions from vehicles at signalised intersections

, 2011
Carbon emissions from road transport make up 20% of the total greenhouse gas emissions in the UK. Therefore, reducing carbon emissions from road transport is significant in reaching carbon reduction targets.
Ing, Koh
core  

Linker‐Engineered Dimeric Acceptors Afford Efficient Organic Photocatalytic Hydrogen Evolution via Tailored Nanomorphology for Long‐Lived Charge Accumulation

Advanced Materials, EarlyView.
We developed a new series of monomeric (MY) and dimeric acceptors incorporating unfused (DY1) and fused (DY2) linkers, which establish a controlled self‐aggregation trend of MY > DY2 > DY1. The DY2‐based system yields a bulk‐heterojunction nanoparticle morphology that appears to balance phase separation and interfacial accessibility, consistent with ...
Jin‐Woo Lee, Cheng Sun, Yang Song, Guanru Dong, Keren Ai, Stanley Alfred Cazaly, Flurin Eisner, Bumjoon J. Kim, Zeinab Hamid, Iain McCulloch, Yun‐Hi Kim, James R. Durrant   +11 more
wiley   +1 more source

Combustion and emission characteristics of multiple fuel injections on a dual fuel engine

Transactions of the JSME (in Japanese), 2018
In DFE, it is known that emission and thermal efficiency improve by dividing the diesel injection into two at low load. However, the effect by dividing the diesel injection more than two, has not been investigated. Therefore, in this study, the effect of multiple diesel fuel injections on the combustion and exhaust emission characteristics of DFE using
Hiroaki ICHIHASHI, Yudai YAMASAKI, Shigehiko KANEKO   +2 more
openaire   +3 more sources

Variation of Engine Performance and Emissions using Ethanol Blends

, 2010
The limited fossil fuel resources along with the increased public concerns about pollution levels have increased the need for alternative fuels for use in internal combustion engines.
Abuhabaya, Abdullah, Fieldhouse, John D.
core  

Efficient Osmotic Energy Conversion Enabled by Self‐Standing COF Membranes With Varied Sulfonic Acid Group Density

Advanced Materials, EarlyView.
Self‐standing, strong sulfonated covalent organic framework membranes with varied ionic‐group density are developed for osmotic energy conversion. Optimized charge‐governed nanochannels enable highly selective ion transport, delivering a power density of 24.53 W m−2 under seawater/freshwater salinity gradients.
Xi Ma, Xiaoxiao Cheng, Tamara Fischer, Jürgen Senker, Qi Sun, Seema Agarwal   +5 more
wiley   +1 more source

Importance of fossil fuel emission uncertainties over Europe for CO2 modeling: model intercomparison

, 2011
Inverse modeling techniques used to quantify surface carbon fluxes commonly assume that the uncertainty of fossil fuel CO2 (FFCO2) emissions is negligible and that intra-annual variations can be neglected.
Rödenbeck, C., Krol, M.C., Houweling, S., Karstens, U., Peylin, P.   +4 more
core   +1 more source

Interfacial Acid Sites‐Mediated ZnO‐Based Electrocatalysts for Sustainable Dual‐Pathway H2O2 Production and Rechargeable Zn‐H2O2 Electrochemical Cell

Advanced Materials, EarlyView.
In this work, a synergistic strategy introduces interfacial acid sites, oxygen vacancies, and built‐in electric field into ZnSe/ZnO heterojunction to optimize its electronic structure and electrode micro‐environment. This overcomes sluggish oxygen reduction reaction kinetics and low H2O2 selectivity, achieving record H2O2 productivity (754.4 M gcat−1 ...
Lijun Yang, Sitong Liu, Wencheng He, Fengzhan Sun, Shubing Bi, Hongge Pan, Lingfeng Zhu, Tianyi Ma, Lei Zhang   +8 more
wiley   +1 more source