Tuning up catalytical properties of electrochemically prepared nanoconical Co-Ni deposit for HER and OER

Skibińska, Katarzyna; Wojtaszek, Konrad; Krause, Lukas; Kula, A.; Yang, Xuegeng; Marzec, Mateusz; Wojnicki, Marek; Żabiński, Piotr

doi:10.1016/j.apsusc.2022.155004

Cited by 11 publications

(13 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Components such as the hard cover, the polymer-based PMMA window required for the optical observation of the hydrogen bubbles, the salt bridge channel, and various inlets and outlets were adhered with ARALDITE 2013-1 and 2014-2 (Huntsman Advanced Materials). The basic design of the cell and the cathode holder was an adapted, nonflow-through version of the cell setup used in refs and .…”

Section: Methodsmentioning

confidence: 99%

“…Such modifications can be achieved by electrode structuring using lasers, 23,24 lithography 25 or photolithography, 26 electroless deposition, 18 or electrodeposition. 20 One-step electrodeposition, with the use of capping agents that modify the crystallization, enables the template-free, cost-effective production of highly active nanostructures that are made from inexpensive materials 27−29 and whose activity can be further enhanced by the addition of minuscule amounts of Pt group metals. 30 In addition to altering the wettability properties, the usage of micro-or nanostructuring makes it possible to enlarge the electrocatalytically active surface area (ECSA) that is involved in the reaction.…”

Section: Introductionmentioning

confidence: 99%

“…R c , θ, and γ denote the gas–solid contact radius, the contact angle, and the electrolyte surface tension. , These attracting forces can be minimized to favor earlier bubble detachment, releasing nucleation sites more quickly and thus increasing efficiency . This is possible through the purposeful manipulation of either the surface chemistry or the morphology ,, of the electrocatalyst to generate hydrophilic surface properties.…”

Section: Introductionmentioning

confidence: 99%

“…Such modifications can be achieved by electrode structuring using lasers, , lithography or photolithography, electroless deposition, or electrodeposition . One-step electrodeposition, with the use of capping agents that modify the crystallization, enables the template-free, cost-effective production of highly active nanostructures that are made from inexpensive materials − and whose activity can be further enhanced by the addition of minuscule amounts of Pt group metals …”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Hydrogen Bubble Size Distribution on Nanostructured Ni Surfaces: Electrochemically Active Surface Area Versus Wettability

Krause

Skibińska

Rox

et al. 2023

ACS Appl. Mater. Interfaces

Self Cite

View full text Add to dashboard Cite

Emerging manufacturing technologies make it possible to design the morphology of electrocatalysts on the nanoscale in order to improve their efficiency in electrolysis processes. The current work investigates the effects of electrodeattached hydrogen bubbles on the performance of electrodes depending on their surface morphology and wettability. Ni-based electrocatalysts with hydrophilic and hydrophobic nanostructures are manufactured by electrodeposition, and their surface properties are characterized. Despite a considerably larger electrochemically active surface area, electrochemical analysis reveals that the samples with more pronounced hydrophobic properties perform worse at industrially relevant current densities. High-speed imaging shows significantly larger bubble detachment radii with higher hydrophobicity, meaning that the electrode surface area that is blocked by gas is larger than the area gained by nanostructuring. Furthermore, a slight tendency toward bubble size reduction of 7.5% with an increase in the current density is observed in 1 M KOH.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Hydrogen Bubble Size Distribution on Nanostructured Ni Surfaces: Electrochemically Active Surface Area Versus Wettability

Krause

Skibińska

Rox

et al. 2023

ACS Appl. Mater. Interfaces

Self Cite

View full text Add to dashboard Cite

show abstract

“…The synthesis of Zn-Ni [33], Zn-Mg [34], and Zn-Ni-Mg [35] from gluconate baths has been also investigated. Besides that, the metallization of 3D prints [36][37][38] and electrochemical synthesis of 1D nanostructures by the one-step method [39][40][41][42] have been studied. The superhydrophobic properties of coatings are also in interest of scientists [43].…”

Section: Agh University Of Science and Technologymentioning

confidence: 99%

Electrochemistry at Krakowian research institutions

Skibińska

Żabiński

2023

J Solid State Electrochem

Self Cite

View full text Add to dashboard Cite

The electrochemistry research team activity from Poland is marked by significant increase in the last 20 years. The joining of European Community in 2004 gives an impulse for the development of Polish science. The development of electrochemistry has been stimulated by cooperation with industry and the establishment of technology transfer centers, technology parks, business incubators, etc. and the mostly by simplified international collaborations. Five research institutions from Krakow reports work in the field of electrochemistry. The achievements of all teams are briefly described.

show abstract

Interface Engineering Induced Multi‐Scale Self‐Assembly NiFe‐LDH Heterostructures for High‐Performance Water Electrolysis

Han,

Yuan,

Chen

et al. 2024

ChemSusChem

View full text Add to dashboard Cite

Confronted with the pressing issue of energy scarcity, the development of an economical and potent bifunctional catalyst is of paramount importance. We adopt an interface engineering strategy to modify the surface of NiFe‐LDH nanoplates with O2 plasma treatment. This process enhances the local electric field of NiFe‐LDH, resulting in the formation of a self‐assembled polycrystalline nanowire array on the nanoplate surface. After O2 plasma treatment for 30 min, the NiFe‐LDH‐P30 not only formed a heterostructure with rough surface, but also regulated the exposure of crystal surfaces. Due to the strong interface coupling between the self‐assembled 3D nanoflowers, 2D nanoplates and 1D nanowires, the NiFe‐LDH‐P30 exhibits an excellent structural stability. Moreover, it demonstrated exceptional HER and OER activities in alkaline condition, achieving a low overpotentials of 154 mV and 242 mV at 10 mA cm‐2, respectively. Furthermore, NiFe‐LDH‐P30 as the dual‐electrode material for the cathode and anode in the process of water splitting results in a low voltage of 1.63 V at a current density of 10 mA cm‐2. Through the strategic application of interface engineering, this work has pioneered a novel approach to the creation of transition metal‐based electrocatalysts, which is benefit to a range of practical energy applications.

show abstract

Tuning up catalytical properties of electrochemically prepared nanoconical Co-Ni deposit for HER and OER

Cited by 11 publications

References 41 publications

Hydrogen Bubble Size Distribution on Nanostructured Ni Surfaces: Electrochemically Active Surface Area Versus Wettability

Hydrogen Bubble Size Distribution on Nanostructured Ni Surfaces: Electrochemically Active Surface Area Versus Wettability

Electrochemistry at Krakowian research institutions

Interface Engineering Induced Multi‐Scale Self‐Assembly NiFe‐LDH Heterostructures for High‐Performance Water Electrolysis

Contact Info

Product

Resources

About