نتایج جستجو برای: alkaline fuel cell
تعداد نتایج: 1772558 فیلتر نتایج به سال:
Despite over a century of study and decades of intensive research, few fuel cell products have appeared on the market. The major inhibitor to mass commercialisation is cost. H2/air alkaline fuel cells (AFCs) containing KOH(aq) electrolyte promise the lowest cost devices, with the ability to use non-Pt catalysts. The fundamental problem with AFCs is that the KOH(aq) electrolyte reacts with CO2 (...
Although numerous reports on nonprecious metal catalysts for replacing expensive Pt-based catalysts have been published, few of these studies have demonstrated their practical application in fuel cells. In this work, we report graphitic carbon nitride and carbon nanofiber hybrid materials synthesized by a facile and gram-scale method via liquid-based reactions, without the use of toxic material...
This paper reports on the performance of an alkaline-acid direct chloro ethanol fuel cell (AA-DCLEFC) that is composed of an alkaline anode, a membrane and an acid cathode. The effects of membrane thickness and the concentration of various species at both the anode and cathode on the cell performances are investigated. It has been demonstrated that the peak power density of this AA-DCLEFC that ...
Recently, Alkaline Polymer Electrolyte Membrane Fuel Cells (APEMFCs) have been attracting worldwide attention mainly due to the prospect of using non–platinum–group metal catalysts. In addition, there is growing evidence that these fuel cells can operate with the presence of carbonate. This mini review will introduce the state–of–the–art in understanding of alkaline anion–exchange membranes (AA...
Fuel cells (FC) have been developed for automobiles and stationary power units. In addition to a generator function, we propose new application of hydrogen isotope separation. this paper, deuterium (D) separation is investigated by two types AFCs with platinum (Pt) or ruthenium (Ru) anode catalysts. The characteristics the are evaluated pure protium (H) gas separately. case Pt catalyst, cell cu...
background: bone marrow mesenchymal stem cells (mscs) are one of the undifferentiated multipotential cell sources of human body. methods: mscs have the capacity to form a variety of cell types, especially chondrocytes and osteocytes. learning about responses of mscs to external milieu and chemical factors such as ph could recommend new approaches for preparation of suitable scaffolds for bone a...
N,S,Fe-doped graphene nanosheets were directly synthesized from aminothiazole, a precursor molecule that contains N and S atoms, through Fe catalysis under heat treatment. The graphene nanosheets exhibited high electrocatalytic activity toward oxygen reduction reaction in both acidic and alkaline media during rotating disk electrode half-cell and fuel cell tests.
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