The Formation of Free Standing NiO Nanostructures on Nickel Foam for Supercapacitors

Atalay, F.E.; Aydoğmuş, Ercan; Yigit, H.; Avcu, D.; Kaya, H.; Atalay, S.

doi:10.12693/aphyspola.125.224

Cited by 8 publications

(6 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The highest activation effect was achieved after 20-times treatment in a solution of oxalic acid: the specific capacity has increased more than 60 times, from 0.333 F/cm 2 (sample R) to 20.003 (sample ROx20). Comparison of the obtained data with other published papers is complicated, because other papers cite specific capacities of nickel hydroxide or films in Farads per gram [32,[35][36][37]. However, when conducting this research, the change in the mass of nickel foam samples was lower than the sensitivity of analytical scales (0.0001 g), which did not allow for the calculation of such value.…”

Section: Discussion Of Results Of Studying the Influence Of Activatiomentioning

confidence: 82%

“…Nickel oxide film on the surface of Ni has been prepared chemically using the solvothermal method [35], head deposition [36,37], including induction [38], and also thermal oxidation in air [39]. In this case, the nickel hydroxide film is a conversion coating (i. e. formed by conversion of the substrate material [40]) and possesses high electrochemical activity.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

See 1 more Smart Citation

Activation of the nickel foam as a current collector for application in supercapacitors

Кovalenko

Kotok

Коваленко

2018

EEJET

View full text Add to dashboard Cite

Пінонікель широко використовується як струмовідвод та основа гідроксиднонікелевого фарадеєвського електроду гібридних суперконденсаторов. Активація пінонікелю дозволить збільшити ємність гідроксиднонікелевого електроду або сформувати високошвидкісні електроди без нанесення додаткової активної маси. Для активації пінонікелю запропонована багаторазова (1-20 раз) короткотривала (5 хв) обробка в 0,1 М розчині HCl, H 3 BO 3 або H 2 C 2 O 4. Вивчена можливість активації комерційних зразків пінонікелю виробництва «Новомет-Пермь» (Російська Федерація) та «Linyi Gelon LIB Co Ltd» (Китай). Активовані та неактивовані зразки пінонікеля вивчені методами ренгенофазового аналізу та скануючої електронної мікроскопії, електрохімічні характеристики визначені циклічною вольтамперометрією та гальваностатичним зарядно-розрядним циклування в режимі суперконденсатора. Порівняльний аналіз зразків піноникелю китайського та російського виробництва виявив суттєву пасивність та складність активації пінонікелю китайського виробництва. Висловлено припущення, що висока пасивність визначається тим, що зразок складається із сплаву NiP або NiB. Максимальна питома ємність 0,084 Ф/см 2 отримана при 20-ти кратній обробці в розчині HCl. Механізм активації-збільшення питомої активної поверхні нікелю. Однак це значення менше питомої ємності неактивованого пінонікелю російського виробництва (0,333 Ф/см 2). Показано, що пінонікель російського виробництва легко активується. Максимальний активаційний ефект проявляється при обробці в розчині щавлевої кислоти: питомі ємності склали 1,213 Ф/см 2 (при 1-но кратній обробці), 6,578 Ф/см 2 (при 5-ти кратній обробці) та 20,003 Ф/см 2 (при 20-ти кратній обробці). Механізм активації-утворення на поверхні пінонікеля шару оксалату нікелю. За результатами порівняльного аналізу показано ефективність активації пінонікелю російського зразка шляхом багаторазової короткотермінової обробки в розчині щавлевої кислоти. Зроблено висновок щодо неефективності активації зразка пінонікелю китайського виробництва шляхом багаторазової короткотермінової обробки в розчині щавлевої, соляної та борної кислоти. Для активації пінонікелю китайського виробництва необхідна розробка іншого методу Ключові слова: пінонікель, питома ємність, суперконденсатор, травління, щавлева кислота, соляна кислота, струмовідвод

show abstract

Section: Discussion Of Results Of Studying the Influence Of Activatiomentioning

confidence: 82%

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Activation of the nickel foam as a current collector for application in supercapacitors

Кovalenko

Kotok

Коваленко

2018

EEJET

View full text Add to dashboard Cite

show abstract

“…A nickel oxide film on a Ni surface is formed by a solvothermal process [36], thermal deposition [37,38], including the induction one [39], and thermal oxidation in the air [40].…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Comparative investigation of different types of nickel foam samples for application in supercapacitors and other electrochemical devices

Кovalenko

Kotok

2021

EEJET

View full text Add to dashboard Cite

Nickel foam is widely used as a current lead/current collector and the basis of nickel hydroxide electrodes for various electrochemical devices – batteries, hybrid supercapacitors, devices for electrocatalytic oxidation of organic substances. The characteristics of commercial samples of nickel foam produced by Novomet-Perm (Russian Federation) obtained by electroless and then electrochemical nickel plating and Linyi Gelon LIB Co Ltd (China) obtained by electroless nickel plating were studied. The nature of passivity was determined by forming model samples of electrochemical and electroless nickel on a steel base. For the passive sample, activation was carried out by applying a layer of electrochemical nickel from an impact nickel plating solution. Activated, non-activated samples of nickel foam, as well as model samples, were studied by the methods of cyclic voltammetry and galvanostatic charge-discharge cycling in the supercapacitor mode. Comparative analysis of Chinese-made and Russian-made nickel foam samples showed significant passivity of the former – in cyclic voltammetry, the activity was 4.8 times lower, with galvanostatic charge-discharge cycling – 2.59 times lower. It was suggested that high passivity was determined by the fact that the sample consisted of Ni-P or Ni-B alloy. This assumption was proved by the method of natural simulation. The electrochemical activity of electroless nickel was 1.25 times lower than that of electrochemical nickel (according to cyclic voltammetry data) and 1.58 times lower (according to galvanostatic cycling data). For the first time, Chinese-made nickel foam (electroless nickel) was activated by applying a layer of electrochemical nickel from an impact nickel electrolyte. The high activation efficiency was shown as follows – on the cyclic curve, the specific current of the anodic peak increased 8.71 times, and with galvanostatic cycling, the increase in specific capacity was from 1.73 times (at i=120 mA/cm2) to 4.84 times (at i=20 mA/cm2)

show abstract

“… 17 Some studies have been reported in which supercapacitor electrodes were produced with the use of biological materials such as algae, fungi, viruses, and pollen. 19 , 20 Among these structures, pollen attracts attention in terms of being obtainable from nature directly, in the easiest and cheapest way, with unique surface structures and surface diversity. Supercapacitor electrodes were usually made of carbonized pollen (camellia, 21 , 22 lotus, 22 , 23 peony, 22 oilseed rape, 22 or pine 24 ) as an active carbon source.…”

Section: Introductionmentioning

confidence: 99%

“…The most important factors affecting the electrochemical performance of supercapacitor electrodes are the specific surface area, pore shape and structure, pore shape distribution, surface functionality, and electrical conductivity of the active material used in the electrode design . Some studies have been reported in which supercapacitor electrodes were produced with the use of biological materials such as algae, fungi, viruses, and pollen. , Among these structures, pollen attracts attention in terms of being obtainable from nature directly, in the easiest and cheapest way, with unique surface structures and surface diversity. Supercapacitor electrodes were usually made of carbonized pollen (camellia, , lotus, , peony, oilseed rape, or pine) as an active carbon source.…”

Section: Introductionmentioning

confidence: 99%

Different Plant Sporopollenin Exine Capsules and Their Multifunctional Usage

Atalay

Culum

Kaya

et al. 2022

ACS Appl. Bio Mater.

View full text Add to dashboard Cite

Sporopollenin exine capsules (SECs) are highly resistant to heat and various acids and bases. They are also cheap, highly porous, eco-friendly polymer biomaterials with stable microencapsulation capacity. Due to their strong and uniquely shaped exine layers, they can allow growth on metal oxide materials, as a biotemplate for use in different applications. In this study, first, a single SEC extraction method was applied to three different pollens from Pinus , Fraxinus excelsior , and Tilia . Scanning electron microscopy (SEM), Brunauer–Emmett–Teller (BET) analysis, and thermogravimetric/differential thermal analysis (TGA/DTA) measurements both before and after the extraction process were performed to observe changes in surface area, morphology, porous structure, and degradation properties. The protein content and removal were analyzed by elemental and spectrophotometric analyses. Then, SECs were loaded by passive and centrifuge loading for drug delivery, and the loading capacities were analyzed by Fourier transform infrared spectroscopy and spectrophotometry. The method was successful in opening the pores and maintaining the structural integrity of SECs. It was determined that the morphology and porosity affected the encapsulation efficiency. According to the loading capacities, Tilia SECs were the most efficient SECs for both loading methods. In addition, three different SECs were hydrothermally coated with cobalt and then heat-treated to obtain a metal oxide structure. A CO 3 O 4 supercapacitor electrode constructed using CO 3 O 4 - F. excelsior SEC powder had the best surface area parameters. The electrode showed a maximum specific capacity of 473 F/g for over 3000 continuous cycles of galvanostatic charge–discharge (GCD).

show abstract

The Formation of Free Standing NiO Nanostructures on Nickel Foam for Supercapacitors

Cited by 8 publications

References 10 publications

Activation of the nickel foam as a current collector for application in supercapacitors

Activation of the nickel foam as a current collector for application in supercapacitors

Comparative investigation of different types of nickel foam samples for application in supercapacitors and other electrochemical devices

Different Plant Sporopollenin Exine Capsules and Their Multifunctional Usage

Contact Info

Product

Resources

About