scholarly journals Octapod-Shaped CdSe Nanocrystals Hosting Pt with High Mass Activity for the Hydrogen Evolution Reaction

2020 ◽  
Vol 32 (6) ◽  
pp. 2420-2429 ◽  
Author(s):  
Leyla Najafi ◽  
Sebastiano Bellani ◽  
Andrea Castelli ◽  
Milena P. Arciniegas ◽  
Rosaria Brescia ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
High Mass ◽  
Cdse Nanocrystals ◽  
Mass Activity

Pt nanoparticle-decorated two-dimensional oxygen-deficient TiO2 nanosheets as an efficient and stable electrocatalyst for the hydrogen evolution reaction

Nanoscale ◽  
2020 ◽  
Vol 12 (20) ◽  
pp. 11055-11062 ◽  
Author(s):  
Keerti M. Naik ◽  
Eiji Higuchi ◽  
Hiroshi Inoue
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Platinum Nanoparticles ◽  
High Mass ◽  
Two Dimensional ◽  
Pt Nanoparticle ◽  
Tio2 Nanosheets ◽  
Mass Activity

Platinum nanoparticles dispersed on oxygen-deficient TiO2−x nanosheets exhibited high mass activity and stability for the hydrogen evolution reaction.

scholarly journals Sub-1.1 nm ultrathin porous CoP nanosheets with dominant reactive {200} facets: a high mass activity and efficient electrocatalyst for the hydrogen evolution reaction

2017 ◽  
Vol 8 (4) ◽  
pp. 2769-2775 ◽  
Author(s):  
Chao Zhang ◽  
Yi Huang ◽  
Yifu Yu ◽  
Jingfang Zhang ◽  
Sifei Zhuo ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Chemical Conversion ◽  
High Mass ◽  
Ultrathin Nanosheets ◽  
Highly Efficient ◽  
Mass Activity

We present a convenient chemical conversion strategy for the synthesis of CoP porous ultrathin nanosheets as highly efficient catalysts for the hydrogen evolution reaction.

Ultralow loading of ruthenium nanoparticles on nitrogen-doped porous carbon enables ultrahigh mass activity for the hydrogen evolution reaction in alkaline media

2021 ◽  
Author(s):  
Qianjun Zhi ◽  
Shuaibo Qin ◽  
Wenping Liu ◽  
Rong Jiang ◽  
Tingting Sun ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Porous Carbon ◽  
Alkaline Media ◽  
Ruthenium Nanoparticles ◽  
Nitrogen Doped ◽  
Ru Nanoparticles ◽  
Mass Activity

Carbon-supported ultrafine Ru nanoparticles with 0.44 wt% Ru loading displayed ultrahigh activity towards hydrogen evolution reaction in alkaline media.

scholarly journals A Molecular Tetrahedral Cobalt–Seleno-Based Complex as an Efficient Electrocatalyst for Water Splitting

Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 945
Author(s):  
Ibrahim Munkaila Abdullahi ◽  
Jahangir Masud ◽  
Polydoros-Chrisovalantis Ioannou ◽  
Eleftherios Ferentinos ◽  
Panayotis Kyritsis ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
High Mass ◽  
Alkaline Solutions ◽  
Hydrogen Evolution Reactions ◽  
Mass Activity ◽  
Turn Over Frequency ◽  
Turn Over

The cobalt–seleno-based coordination complex, [Co{(SePiPr2)2N}2], is reported with respect to its catalytic activity in oxygen evolution and hydrogen evolution reactions (OER and HER, respectively) in alkaline solutions. An overpotential of 320 and 630 mV was required to achieve 10 mA cm−2 for OER and HER, respectively. The overpotential for OER of this CoSe4-containing complex is one of the lowest that has been observed until now for molecular cobalt(II) systems, under the reported conditions. In addition, this cobalt–seleno-based complex exhibits a high mass activity (14.15 A g−1) and a much higher turn-over frequency (TOF) value (0.032 s−1) at an overpotential of 300 mV. These observations confirm analogous ones already reported in the literature pertaining to the potential of molecular cobalt–seleno systems as efficient OER electrocatalysts.

scholarly journals Synthesis of PdP Nanoparticles as Electrocatalysts for Hydrogen Evolution Reaction in an Alkaline Medium

NANO ◽  
2019 ◽  
Vol 14 (05) ◽  
pp. 1950059 ◽  
Author(s):  
Tian Xia ◽  
Ming Zhao ◽  
Bin Tong ◽  
Zinan Kang ◽  
Yanfang Wu ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Alkaline Medium ◽  
Hydrogen Evolution Reaction ◽  
Current Density ◽  
Electrocatalytic Performance ◽  
Mass Activity ◽  
Phosphorus Precursor

The synthesis of PdP nanoparticles (NPs) using triphenylphosphine as a phosphorus precursor was investigated. The electrocatalytic performance of PdP NPs in hydrogen evolution reaction in an alkaline medium was measured. It can be concluded that when the current density is 10[Formula: see text]mA[Formula: see text]cm[Formula: see text], the overpotential produced by Pd3P[Formula: see text] NPs is 75[Formula: see text]mV which is 185[Formula: see text]mV lower than that produced by commercial Pd/C. The mass activity of Pd3P[Formula: see text] NPs is more than twice as high as that of commercial Pd/C. The work indicates that PdP nanomaterials could be a potential catalyst for water splitting.

Size-selective synthesis of platinum nanoparticles on transition-metal dichalcogenides for the hydrogen evolution reaction

2021 ◽  
Author(s):  
Liang Mei ◽  
Xiaoping Gao ◽  
Zhan Gao ◽  
Qingyong Zhang ◽  
Xinge Yu ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Synergistic Effects ◽  
Transition Metal Dichalcogenides ◽  
Single Layer ◽  
Pt Nanoparticles ◽  
Mos2 Nanosheets ◽  
Type Size ◽  
Metal Dichalcogenides ◽  
Mass Activity

Pt-MoS2 composites are fabricated via growing tunable Pt nanoparticles size (NPs, 2–6 nm) on single-layer MoS2 nanosheets. Which have shown excellent performance for hydrogen evolution reaction (HER) with the Pt NPs exhibiting a volcano-type size effect toward mass activity due to the synergistic effects between the Pt NPs and MoS2.

Drop‐casted Platinum Nanocube Catalysts for Hydrogen Evolution Reaction with Ultrahigh Mass Activity

ChemSusChem ◽  
2021 ◽  
Author(s):  
Bonhyeong Koo ◽  
Jinwoo Chu ◽  
Jongsu Seo ◽  
Gihun Jung ◽  
Seung Hee Baek ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Mass Activity

scholarly journals Platinum single-atom catalyst coupled with transition metal/metal oxide heterostructure for accelerating alkaline hydrogen evolution reaction

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Kai Ling Zhou ◽  
Zelin Wang ◽  
Chang Bao Han ◽  
Xiaoxing Ke ◽  
Changhao Wang ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Three Dimensional ◽  
Precious Metals ◽  
Water Dissociation ◽  
High Mass ◽  
Single Atom ◽  
Ni Catalyst ◽  
Metal Metal ◽  
Oxide Heterostructure

AbstractSingle-atom catalysts provide an effective approach to reduce the amount of precious metals meanwhile maintain their catalytic activity. However, the sluggish activity of the catalysts for alkaline water dissociation has hampered advances in highly efficient hydrogen production. Herein, we develop a single-atom platinum immobilized NiO/Ni heterostructure (PtSA-NiO/Ni) as an alkaline hydrogen evolution catalyst. It is found that Pt single atom coupled with NiO/Ni heterostructure enables the tunable binding abilities of hydroxyl ions (OH*) and hydrogen (H*), which efficiently tailors the water dissociation energy and promotes the H* conversion for accelerating alkaline hydrogen evolution reaction. A further enhancement is achieved by constructing PtSA-NiO/Ni nanosheets on Ag nanowires to form a hierarchical three-dimensional morphology. Consequently, the fabricated PtSA-NiO/Ni catalyst displays high alkaline hydrogen evolution performances with a quite high mass activity of 20.6 A mg−1 for Pt at the overpotential of 100 mV, significantly outperforming the reported catalysts.

Engineering of Ru/Ru2P interfaces superior to Pt active sites for catalysis of the alkaline hydrogen evolution reaction

2019 ◽  
Vol 7 (10) ◽  
pp. 5621-5625 ◽  
Author(s):  
Zhao Liu ◽  
Zhe Li ◽  
Jing Li ◽  
Jie Xiong ◽  
Shunfa Zhou ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Active Sites ◽  
Synergistic Effects ◽  
Water Dissociation ◽  
Proton Reduction ◽  
Mass Activity

Based on the synergistic effects of Ru on water dissociation and Ru2P on proton reduction, Ru/Ru2P interfaces were engineered in situ, and the mass activity of the new catalyst for the alkaline HER was doubled compared to Pt/C.

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