Journal ArticleDOI
A Cu-Based Nanoparticulate Film as Super-Active and Robust Catalyst Surpasses Pt for Electrochemical H2 Production from Neutral and Weak Acidic Aqueous Solutions
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TLDR
In this paper, a super-active and robust Cu-CuxO-Pt nanoparticulate electrocatalyst is reported, which displays a small Tafel slope (44 mV dec-1) and a large exchange current density (1.601 mA cm-2) in neutral buffer solution.Abstract:
Electrocatalysts that are stable and highly active at low overpotential (η) under mild conditions as well as cost-effective and scalable are eagerly desired for potential use in photo- and electro-driven hydrogen evolution devices. Here the fabrication and characterization of a super-active and robust Cu-CuxO-Pt nanoparticulate electrocatalyst is reported, which displays a small Tafel slope (44 mV dec-1) and a large exchange current density (1.601 mA cm-2) in neutral buffer solution. The catalytic current density of this catalyst film reaches 500 mA cm-2 at η = -390 ± 12 mV and 20 mA cm-2 at η = -45 ± 3 mV, which are significantly higher than the values displayed by Pt foil and Pt/C electrodes in neutral buffer solution and even comparable with the activity of Pt electrode in 0.5 m H2SO4 solution.read more
Citations
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Journal ArticleDOI
Non-Noble Metal-based Carbon Composites in Hydrogen Evolution Reaction: Fundamentals to Applications.
TL;DR: A detailed analysis of the structure-activity-pH correlations in the HER process gives an insight on the origin of the pH-dependence for HER, and provides guidance for future HER mechanism studies on non-noble metal-based carbon composites.
Journal ArticleDOI
Electro- and Solar-Driven Fuel Synthesis with First Row Transition Metal Complexes.
Kristian E Dalle,Julien Warnan,Jane J. Leung,Bertrand Reuillard,Isabell S Karmel,Erwin Reisner +5 more
TL;DR: In this paper, a review of the literature on 3D metal-based molecular catalysts is presented, focusing on their immobilization on heterogeneous solid-state supports for the synthesis of renewable fuels from abundant water or greenhouse gas CO2.
Journal ArticleDOI
Efficient Hydrogen Evolution on Cu Nanodots-Decorated Ni3S2 Nanotubes by Optimizing Atomic Hydrogen Adsorption and Desorption.
TL;DR: The strong interactions between Cu and Ni3S2 cause the Cu NDs/Ni 3S2 NTs-CFs electrocatalysts to exhibit the outstanding HER catalytic performance with low onset potential, high catalytic activity, and excellent stability.
Journal ArticleDOI
Rational Design of Nanoarray Architectures for Electrocatalytic Water Splitting
TL;DR: In this article, the authors recognized that electrochemical water splitting is a practical strategy for impelling the transformation of sustainable energy sources such as solar energy from electricity to clean hydrogen fuel.
Journal ArticleDOI
Pt-like electrocatalytic behavior of Ru–MoO2 nanocomposites for the hydrogen evolution reaction
Peng Jiang,Yang Yang,Ruohong Shi,Guoliang Xia,Jitang Chen,Jianwei Su,Qianwang Chen,Qianwang Chen +7 more
TL;DR: In this article, the authors reported the preparation of Ru-MoO2 nanocomposites via a facile in situ carburization of a Ru modified Mo-based metal-organic framework.
References
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Journal ArticleDOI
The chemistry of two-dimensional layered transition metal dichalcogenide nanosheets
TL;DR: This Review describes how the tunable electronic structure of TMDs makes them attractive for a variety of applications, as well as electrically active materials in opto-electronics.
Journal ArticleDOI
In Situ Formation of an Oxygen-Evolving Catalyst in Neutral Water Containing Phosphate and Co2+
TL;DR: A catalyst that forms upon the oxidative polarization of an inert indium tin oxide electrode in phosphate-buffered water containing cobalt (II) ions is reported that not only forms in situ from earth-abundant materials but also operates in neutral water under ambient conditions.
Journal ArticleDOI
Nanostructured Nickel Phosphide as an Electrocatalyst for the Hydrogen Evolution Reaction
Eric J. Popczun,James R. McKone,Carlos G. Read,Adam J. Biacchi,Alex M. Wiltrout,Nathan S. Lewis,Raymond E. Schaak +6 more
TL;DR: The catalytically active Ni2P nanoparticles had among the highest HER activity of any non-noble metal electrocatalyst reported to date, producing H2(g) with nearly quantitative faradaic yield, while also affording stability in aqueous acidic media.
Journal ArticleDOI
Trends in activity for the water electrolyser reactions on 3d M(Ni,Co,Fe,Mn) hydr(oxy)oxide catalysts.
Ram Subbaraman,Dusan Tripkovic,Kee-Chul Chang,Dusan Strmcnik,Arvydas P. Paulikas,Pussana Hirunsit,Maria K. Y. Chan,Jeffrey Greeley,Vojislav R. Stamenkovic,Nenad M. Markovic +9 more
TL;DR: The overall catalytic activities for these reaction as a function of a more fundamental property, a descriptor, OH-M(2+δ) bond strength (0 ≤ δ ≤ 1.5), provide the foundation for rational design of 'active sites' for practical alkaline HER and OER electrocatalysts.
Journal ArticleDOI
Enhancing Hydrogen Evolution Activity in Water Splitting by Tailoring Li+-Ni(OH)2-Pt Interfaces
Ram Subbaraman,Dusan Tripkovic,Dusan Strmcnik,Kee-Chul Chang,Masanobu Uchimura,Arvydas P. Paulikas,Vojislav R. Stamenkovic,Nenad M. Markovic +7 more
TL;DR: It is found that a controlled arrangement of nanometer-scale Ni(OH)2 clusters on platinum electrode surfaces manifests a factor of 8 activity increase in catalyzing the hydrogen evolution reaction relative to state-of-the-art metal and metal-oxide catalysts.