Hydrogen evolution on NiPx alloys: the influence of sorbed hydrogen

Burchardt, Trygve

doi:10.1016/s0360-3199(01)00053-2

Cited by 62 publications

(31 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The origin of higher HER activity with the (amorphous-like) nc-Ni 100 catalyst can also be linked to the higher affinity for hydrogen absorption, as reported elsewhere [19][20][21]. In addition, Burchardt has claimed that the high activity of an amorphous NiP x HER catalyst originates from a change in its electronic structure caused by the absorption of hydrogen [19]. At a higher overpotential of −0.45 V RHE , the current density of HER with the ncNi 100 catalyst also showed a 32% enhancement of activity compared with that of the c-Ni 100 catalyst.…”

Section: Methodssupporting

confidence: 56%

“…Paseka [37] once reported the changes in the double layer capacitances of Ni-P electrode using various methods to observe the amounts of absorbed hydrogen at different potentials. The origin of higher HER activity with the (amorphous-like) nc-Ni 100 catalyst can also be linked to the higher affinity for hydrogen absorption, as reported elsewhere [19][20][21]. In addition, Burchardt has claimed that the high activity of an amorphous NiP x HER catalyst originates from a change in its electronic structure caused by the absorption of hydrogen [19].…”

Section: Methodsmentioning

confidence: 71%

“…Ni has been known as a prospective HER catalyst material [9], and further enhancement of its activity has been investigated by forming NiM alloys (M = Fe, Co, Cu, Mo, W, etc.) [10][11][12][13][14][15][16][17][18], synthesizing Ni composites (e.g., NiP x and NiS x ) [19][20][21][22][23], and controlling Ni nanostructures [24][25][26]. The origin of the alloys' high activities is typically explained by a changed lattice parameter and electronic structure of Ni, as affected by the addition of varied amounts of M into the Ni [11,12].…”

Section: Introductionmentioning

confidence: 99%

“…The origin of the alloys' high activities is typically explained by a changed lattice parameter and electronic structure of Ni, as affected by the addition of varied amounts of M into the Ni [11,12]. On the other hand, the composites' enhanced activities have been described by the large amount of hydrogen absorbed into their amorphous structures [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

“…They also claimed that when there is a sufficiently high overpotential for the rapid reduction of metal ions to have random orientations, the formation of amorphous deposit occurs [33]. Similarly, it is believed that the deposition of NiP x forms amorphous structure rather than thermodynamically favored phase (crystalline), due to the suppressed surface rearrangement by the phosphorous [19,33,34]. In addition, morphology control is also a significant factor in the enhancement of catalyst activity, especially for a gas-evolving catalyst [35].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

High-activity electrodeposited NiW catalysts for hydrogen evolution in alkaline water electrolysis

Hong

Ahn

Choi

et al. 2015

Applied Surface Science

View full text Add to dashboard Cite

Section: Methodssupporting

confidence: 56%

Section: Methodsmentioning

confidence: 71%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

High-activity electrodeposited NiW catalysts for hydrogen evolution in alkaline water electrolysis

Hong

Ahn

Choi

et al. 2015

Applied Surface Science

View full text Add to dashboard Cite

The Hydrogen Electrode Reaction

2019

Fundamentals of Electrocatalyst Materials and Interfacial Characterization

View full text Add to dashboard Cite

Self‐Organized Formation of Layered Nanostructures by Oscillatory Electrodeposition

Nakanishi

2008

Nanostructured Materials in Electrochemistry

View full text Add to dashboard Cite

Solid surfaces with ordered nanostructures, such as layers, dots, holes, and grooves (or ridges), have provided unique microelectronic, optical, magnetic, and micromechanical properties, as summarized in a recent review [1]. Focused photon-, electron-, ion-, and molecular-beam lithography (top-down method) have been widely used for creating desired nanostructures at the surface. However, these techniques are now facing serious problems, such as difficulties in mass production and cost increases due to the use of expensive, specialized apparatus. In the hope of overcoming those problems associated with the conventional techniques, a self-organization method (bottom-up method) has recently attracted much attention.In general, self-organization methods in chemistry can be categorized into two different types. One type is self-organization under thermodynamically equilibrium conditions, in which the ordered structures are formed on the basis of specific properties of intermolecular forces. Self-assembled structures, such as lipidbilayers, close-packed layers of nanospheres, and monolayers of thiol molecules on gold surfaces, are the representative examples. Many studies have been performed on this type of self-organization, as summarized in reviews [2][3][4][5][6][7][8][9][10]. At present, the main issues to be tackled for these methods are to improve their regularity and to be able to place nanostructures of desired size at desired locations. In the other type of self-organization, the ordered structures are formed under thermodynamically nonequilibrium conditions. A wide variety of dynamic spatiotemporal orders, such as oscillations and spatiotemporal patterns, appear in a self-organization manner [10][11][12][13].The spatiotemporal patterns in the dynamic self-organization phenomena have some unique and attractive properties for producing materials of ordered structures: j267 Nanostructured Materials in Electrochemistry. Edited by Ali Eftekhari . The patterns appear spontaneously, without any external control. . The observed patterns have a long-range order. . Various ordered patterns are obtained simply by changing experimental parameters.In fact, several studies have been performed on the application of dynamic selforganization for the formation of ordered structures. For example, the self-organized formation of 2-dimensional (2D) ordered patterns on nano-and micro-meter scales have been achieved by use of , etching [15,16], and dewetting processes [17,18]. These ordered 2D patterns on solid surfaces have already been used in practical applications as templates for constructing three-dimensional (3D) structures and substrates for the incubation of biological cells. 268j 6 Self-Organized Formation of Layered Nanostructures by Oscillatory Electrodeposition 274j 6 Self-Organized Formation of Layered Nanostructures by Oscillatory Electrodeposition

show abstract

Hydrogen evolution on NiPx alloys: the influence of sorbed hydrogen

Cited by 62 publications

References 13 publications

High-activity electrodeposited NiW catalysts for hydrogen evolution in alkaline water electrolysis

High-activity electrodeposited NiW catalysts for hydrogen evolution in alkaline water electrolysis

The Hydrogen Electrode Reaction

Self‐Organized Formation of Layered Nanostructures by Oscillatory Electrodeposition

Contact Info

Product

Resources

About