2016
DOI: 10.1149/07210.0019ecst
|View full text |Cite
|
Sign up to set email alerts
|

Core-Shell Rhodium Sulfide Catalyst for HER/HOR in HBr Solution

Abstract: Synthesis and characterization of high electrochemical surface area core-shell RhxSy catalysts for HER/HOR in HBr solution are discussed. Catalysts with RhxSy as shell and different percentage (5%, 10%, and 20%) platinum on carbon as core material are synthesized. Cyclic voltammetry was used to evaluate the Pt- equivalent mass specific ECSA and durability of these catalysts. The results show that the catalyst with core-shell structure has better performance compared to commercial catalyst (RhxSy/C catalyst fro… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1
1
1

Citation Types

0
6
0

Year Published

2018
2018
2020
2020

Publication Types

Select...
3

Relationship

3
0

Authors

Journals

citations
Cited by 3 publications
(6 citation statements)
references
References 6 publications
0
6
0
Order By: Relevance
“…Note that the slope of HOR measured is larger than that of HER for similar catalysts as observed in previous studies. 6,7,21,22 This is attributed to the bi-functional catalytic property of rhodium sulfide in the HOR/HER. For the HOR, only the rhodium sites on the surface of the catalyst can catalyze the dissociation of a H 2 molecule and oxidation of H to H + .…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…Note that the slope of HOR measured is larger than that of HER for similar catalysts as observed in previous studies. 6,7,21,22 This is attributed to the bi-functional catalytic property of rhodium sulfide in the HOR/HER. For the HOR, only the rhodium sites on the surface of the catalyst can catalyze the dissociation of a H 2 molecule and oxidation of H to H + .…”
Section: Resultsmentioning
confidence: 99%
“…The advantage of using a GDE as a working electrode instead of the conventional glassy carbon rotating electrode (RDE) is the ability to obtain an accurate measurement of the mass of the catalyst; this was needed in order to accurately calculate the mass specific surface area. 21,22 Finally, 2%-wt Nafion ionomer solution was applied on the surface of the catalyst layer. The Nafion ionomer was used as a binder for the catalyst layer.…”
Section: Synthesis Of Rhodium Sulfide Catalyst-the Synthesis Process ...mentioning
confidence: 99%
“…The carbon paper was pretreated in 2 M HNO 3 solution to make it hydrophilic to make it easier for the electrolyte to penetrate into the electrode. The catalyst loading process can be found in our previous work [23][24][25]31].…”
Section: Electrode Preparationmentioning
confidence: 99%
“…The reference electrode was placed adjacent to the working electrode. Details of the working electrode set-up can be found in our previous publications [23,31]. Unstirred nitrogen-saturated 1 M H 2 SO 4 served as the electrolyte.…”
Section: Cyclic Voltammetrymentioning
confidence: 99%
See 1 more Smart Citation