Ethylene production by locule gel tissue excised from immature tomato fruit was inhibited by exposure to 4.5 mmol l C2H4, and 1-aminocyclopropane-1-carboxylic acid (ACC) content was reduced. In contrast, CO2 production, ethylene forming capacity (EFC), red colour development, tissue liquefaction and seed maturation as measured by subsequent germination rate were stimulated by C2H4, and, in imma...

Mo/ZSM-5-catalyzed methane conversion into aromatic hydrocarbons is an important reaction to produce ethylene and benzene, but the detailed reaction mechanism has not been investigated due to its high complexity. In the present study, density functional theory combined with a periodic model was used to investigate the reaction mechanism of direct methane conversion into aromatic hydrocarbons ca...

Separating ethene (C2H4) from ethane (C2H6) is of paramount importance and difficulty. Here we show that C2H4 can be efficiently purified by trapping the inert C2H6 in a judiciously designed metal-organic framework. Under ambient conditions, passing a typical cracked gas mixture (15:1 C2H4/C2H6) through 1 litre of this C2H6 selective adsorbent directly produces 56 litres of C2H4 with 99.95%+ pu...

Exposing pericarp tissue excised from immature tomato fruit to 4.5 mmol l C2H4 revealed a negative C2H4 feedback mechanism in relation to its biosynthesis since ACC concentration and C2H4 production by the tissue were reduced. An opposite trend (positive C2H4 feedback mechanism) was observed in pericarp tissue excised from fruit at the pink stage. At the mature-green stage however, tissue showe...

The reaction of the donor functionalised N,N-bis[2-(pyrid-2-yl)ethyl]hydroxylamine [HON(C2H4-o-py)2] and three equivalents of the Lewis-acids AlMe3, GaMe3 or InMe3 resulted in the formation of dimethylhydroxylaminato-metal complexes of the general constitution [MMe2ON(C2H4-o-py)2 x 2 MMe3] with M = Al (1), Ga (2) or In (3) by methane elimination. An alternative method to generate complexes 1 an...

Ethylene is an ideal CO2 product in electrocatalytic reduction reaction (CO2RR) with high economic value. This paper synthesised Al-doped octahedral Cu2O (Al–Cu2O) nanocrystal by a simple wet chemical method. The selectivity of CO2RR products was improved doping Al onto the surface Cu2O. Al–Cu2O used as efficient electrocatalyst for selective ethylene production. exhibited % Faradic efficiency ...

This work presents a solid-state ionic-based device to selectively detect C2H4 in car exhaust gases. The sensor consists of 8YSZ as the electrolyte and two electrodes: Fe0.7Cr1.3O3/8YSZ LSM/8YSZ. main aim this is optimize catalytic behavior working electrode reduce cross-sensitivity toward CO H2O. Several catalyst nanoparticles were infiltrated tailor adsorption electrochemical oxidation proper...

In most envisioned applications, the full utilization of a graphene-carbon nanotube (CNT) construct requires maintaining the integrity of the graphene layer during the CNT growth step. In this work, we exhibit an approach toward controlled CNT growth atop graphene substrates where the reaction equilibrium between the source hydrocarbon decomposition and carbon saturation into and precipitation ...

Our group recently reproduced the water-assisted growth method, so-called "SuperGrowth", of millimeter-thick single-walled carbon nanotube (SWNT) forests by using C2H4/H2/H2O/Ar reactant gas and Fe/Al2O3, catalyst. In this current work, a parametric study was carried out on both reaction and catalyst conditions. Results revealed that a thin Fe catalyst layer (about 0.5 nm) yielded rapid growth ...

Electrocatalytic semihydrogenation of acetylene provides a clean pathway to the production ethylene (C2H4), one most widely used petrochemical feedstocks. However, its performance is still well below that thermocatalytic route, leaving practical feasibility this electrochemical process questionable. Here our techno-economic analysis shows becomes profitable if Faraday efficiency exceeds 85% at ...