The electroreduction of 9,lO-diphenylanthracene (DPA) in dimethylformamide solutions was studied by polarography, cyclic voltammetry, chronopotentiometry, and coulometry. The results generally confirmed the mechanism proposed for the reduction of aromatic hydrocarbons based on polarographic experiments. Coulometric experiments demonstrated that with sufficient care in solution preparation 1 Far...

Electrochemical stripping techniques are interesting candidates for carrying out onsite speciation of environmentally relevant trace metals due to the existing low-cost portable instrumentation available and low detection limits that can be achieved. In this work, we describe initial analytical technique method development by quantifying total metal concentrations using Stripping Chronopotentio...

The work described i n t h i s thes i s deals mainly w i t h a fundamental study of two cementation react ions , i . e . , Cu(II)/Zn and Co(II)/Zn, using the electrochemical techniques of l inear potential sweep voltammetry, cycl i c vol tammetry, chronopotentiometry ( s t r ipp ing) , capacitance measurements, r ing current measurements and impedance spectroscopy. In addi t ion, solution analy...

Black liquor (BL) is a highly alkaline byproduct from pulp mills. BL rich in inorganic and organic compounds, with lignin (a natural polymer) being the most abundant. Following waste biorefinery concept, electrolysis of comprises oxidation at anode hydrogen evolution cathode. These paired electrochemical processes show promise to be carried out lower cell voltage than that used conventional wat...

Nowadays, the research community envisions smart materials composed of biodegradable, biocompatible, and sustainable natural polymers, such as cellulose. Most applications cellulose electroactive are developed for energy storage sensors, while only a few reported linear actuators. Therefore, we introduce here cellulose-multiwall carbon nanotube composite (Cell-CNT) fibers compared with pristine...

Zinc metal anodes are attracting much attention to enable more economical and sustainable energy storage devices. However, like other anodes, dendritic growths penetrations of porous separators still challenging eliminate. Introducing negative surface charges on the pore walls have been exploited enforce a uniform incoming Zn-ion flux toward electrodeposition, but induced by localized high curr...

In this study, an asymmetric supercapacitor (ASSC) device is assembled by the deposition and annealing of silver-doped mixed metal oxides on reduced graphene oxide (rGO)/Ni foam activated carbon (AC) Ni as positive negative electrodes, respectively. The best performing Ag:MnCoNiO active material synthesized rGO/Ni using chronopotentiometry combined with heat treatment. XRD study clearly confirm...

Dodecabenzylbambus[6]uril (Bn12BU[6]) is an anion receptor that binds the perchlorate ion most tightly (stability constant ~1010 M?1) of all anions due to excellent match between size in relation cavity. This new bambusuril compound was used as ionophore ion-selective membrane (ISM) develop selective electrodes (ISEs) for determination concentration utilizing poly(3,4-ethylenedioxythiophene) (P...