Recent Advances in Electrocatalytic Hydrogen Evolution Using Nanoparticles

Zhu, Jing; Hu, Liangsheng; Zhao, Pengxiang; Lee, Yoon Suk; Wong, Kwok Yin

doi:10.1021/acs.chemrev.9b00248

Cited by 2,110 publications

(1,436 citation statements)

References 662 publications

Supporting

Mentioning

1,315

Contrasting

Unclassified

Order By: Relevance

“…[ 1 ] To date, the efficient electrocatalysts for hydrogen evolution reaction (HER) are mainly inorganic nanostructures. [ 2 ] The active sites of these nanostructures for HER only exist on their surface and/or edge. [ 3 ] The major unexposed metal atoms in the bulk phase are inert for HER, which strictly limits the metal atom utilization.…”

Section: Introductionmentioning

confidence: 99%

Conductive Metal–Organic Frameworks with Extra Metallic Sites as an Efficient Electrocatalyst for the Hydrogen Evolution Reaction

et al. 2020

View full text Add to dashboard Cite

The 2D conductive metal–organic frameworks (MOFs) are expected to be an ideal electrocatalyst due to their high utilization of metal atoms. Exploring a new conjugated ligand with extra active metallic center can further boost the structural advantages of conductive MOFs. In this work, hexaiminohexaazatrinaphthalene (HAHATN) is employed as a conjugated ligand to construct bimetallic sited conductive MOFs (M23(M13∙HAHATN)2) with an extra M–N2 moiety. Density functional theory (DFT) calculations demonstrate that the 2D conjugated framework renders M23(M13∙HAHATN)2 a high electric conductivity with narrow bandgap (0.19 eV) for electron transfer and a favorable in‐plane porous structure (2.7 nm) for mass transfer. Moreover, the metal atom at the extra M–N2 moiety has a higher unsaturation degree than that at M–N4 linkage, resulting in a stronger ability to donate electrons for enhancing electroactivity. These characteristics endow the new conductive MOFs with an enhanced electroactivity for hydrogen evolution reaction (HER) electrocatalysis. Among the series of M23(M13∙HAHATN)2 MOF, Ni3(Ni3∙HAHATN)2 nanosheets with the optimal structure exhibit a small overpotential of 115 mV at 10 mA cm−2, low Tafel slope of (45.6 mV dec−1), and promising electrocatalytic stability for HER. This work provides an effective strategy for designing conductive MOFs with a favorable structure for electrocatalysis.

show abstract

Section: Introductionmentioning

confidence: 99%

Conductive Metal–Organic Frameworks with Extra Metallic Sites as an Efficient Electrocatalyst for the Hydrogen Evolution Reaction

et al. 2020

View full text Add to dashboard Cite

show abstract

“…However, in case of low hydrogen coverage, hydrogen intermediates react with protons by supplying an electron to generate hydrogen, a process known as the Volmer-Heyrovsky mechanism. So, the surface chemical properties that affect the concentration of reactants at the interface are essential to the catalytic reaction process [3,24].…”

Section: Catalytic Chemical Reaction: Water Reduction/oxidation Reactionmentioning

confidence: 99%

Understanding Surface Modulation to Improve the Photo/Electrocatalysts for Water Oxidation/Reduction

Cho

Lee

2020

Molecules

View full text Add to dashboard Cite

Water oxidation and reduction reactions play vital roles in highly efficient hydrogen production conducted by an electrolyzer, in which the enhanced efficiency of the system is apparently accompanied by the development of active electrocatalysts. Solar energy, a sustainable and clean energy source, can supply the kinetic energy to increase the rates of catalytic reactions. In this regard, understanding of the underlying fundamental mechanisms of the photo/electrochemical process is critical for future development. Combining light-absorbing materials with catalysts has become essential to maximizing the efficiency of hydrogen production. To fabricate an efficient absorber-catalysts system, it is imperative to fully understand the vital role of surface/interface modulation for enhanced charge transfer/separation and catalytic activity for a specific reaction. The electronic and chemical structures at the interface are directly correlated to charge carrier movements and subsequent chemical adsorption and reaction of the reactants. Therefore, rational surface modulation can indeed enhance the catalytic efficiency by preventing charge recombination and prompting transfer, increasing the reactant concentration, and ultimately boosting the catalytic reaction. Herein, the authors review recent progress on the surface modification of nanomaterials as photo/electrochemical catalysts for water reduction and oxidation, considering two successive photogenerated charge transfer/separation and catalytic chemical reactions. It is expected that this review paper will be helpful for the future development of photo/electrocatalysts.

show abstract

“…Hydrogen, as an energy vector, could be, in principle, a possible solution to overcome the dependence from fossil fuels. Electrochemical water splitting represents one of the most convenient and promising approaches to hydrogen generation, although the catalysts used nowadays for this process are based on noble metals, such as Pt and Pd [53,54]. Due to their scarcity and high cost, the current challenge is to use cheap and relatively abundant metals, or avoid at all the use of a metal, moving the choice towards more environmentally friendly materials.…”

Section: Her and Oer Processesmentioning

confidence: 99%

Catalysis Mediated by 2D Black Phosphorus Either Pristine or Decorated with Transition Metals Species

et al. 2020

View full text Add to dashboard Cite

Among the novel class of mono-elemental two-dimensional (2D) materials, termed Xenes, phosphorene is emerging as a great promise for its peculiar chemical and physical properties. This review collects a selection of the recent breakthroughs that are related to the application of phosphorene in catalysis and electrocatalysis. Noteworthy, thanks to its intrinsic Lewis basic character, pristine phosphorene turned out to be more efficient and more selective than other non-metal catalysts, in chemical processes as the electroreduction of nitrogen to ammonia or the alkylation of nucleophiles with esters. Once functionalized with transition metals nanoparticles (Co, Ni, Pd, Pt, Ag, Au), its catalytic activity has been evaluated in several processes, mainly hydrogen and oxygen evolution reactions. Under visible light irradiation, it has shown a great improvement of the activity, demonstrating high potential as a photocatalyst.

show abstract

Recent Advances in Electrocatalytic Hydrogen Evolution Using Nanoparticles

Cited by 2,110 publications

References 662 publications

Conductive Metal–Organic Frameworks with Extra Metallic Sites as an Efficient Electrocatalyst for the Hydrogen Evolution Reaction

Conductive Metal–Organic Frameworks with Extra Metallic Sites as an Efficient Electrocatalyst for the Hydrogen Evolution Reaction

Understanding Surface Modulation to Improve the Photo/Electrocatalysts for Water Oxidation/Reduction

Catalysis Mediated by 2D Black Phosphorus Either Pristine or Decorated with Transition Metals Species

Contact Info

Product

Resources

About