A fantastic two-dimensional MoS2 material based on the inert basal planes activation: Electronic structure, synthesis strategies, catalytic active sites, catalytic and electronics properties

2019 ◽  
Vol 399 ◽  
pp. 213020 ◽  
Author(s):  
Lei Lei ◽  
Danlian Huang ◽  
Guangming Zeng ◽  
Min Cheng ◽  
Danni Jiang ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Active Sites ◽  
Two Dimensional ◽  
Structure Synthesis ◽  
Catalytic Active Sites

Fluorination Activates the Basal Plane HER Activity of ReS2: A Combined Experimental and Theoretical Study

2021 ◽  
Author(s):  
Yonggang Liu ◽  
Haijing Li ◽  
Junfu Li ◽  
Xiaoshuang Ma ◽  
Zhiming Cui ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Basal Plane ◽  
Active Sites ◽  
Theoretical Study ◽  
Two Dimensional ◽  
Catalytic Active Sites

Two-dimensional (2D) rhenium disulfide (ReS2) has been attracting immense interests as highly promising hydrogen evolution reaction (HER) electrocatalyst recently. However, the HER catalytic active sites of ReS2 are still limited...

The electronic structure and geometric structure of nanoclusters as catalytic active sites

2013 ◽  
Vol 2 (5) ◽  
pp. 515-528 ◽  
Author(s):  
Hao Li ◽  
Linsen Li ◽  
Yadong Li
Keyword(s):  
Electronic Structure ◽  
Heterogeneous Catalysis ◽  
Metal Nanoparticles ◽  
Research Methods ◽  
Geometric Structure ◽  
Active Sites ◽  
Catalytic Effect ◽  
The Past ◽  
Catalytic Active Sites ◽  
Made In

AbstractIn the past few decades, metal nanoparticles applied in heterogeneous catalysis have attracted extensive attention. The term nanocatalysis is broadly referred to as the unique catalytic effect of this series of materials. Although considerable progress has been made in nanocatalysis, it still remains a great challenge to fully understand the nature of active sites in the nanoscale. Many concepts and models have been put forwarded to describe the properties and performances of nano- and subnanoparticles in catalysis. In this review, we propose our perspective on the active sites of heterogeneous catalysis from the aspects of electronic structure and geometric structure of nanoclusters and consider briefly how these clusters function in catalysis. The challenge in nanocatalysis research methods is also discussed.

Defect engineering in two-dimensional electrocatalysts for hydrogen evolution

Nanoscale ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 4283-4294 ◽  
Author(s):  
Junfeng Xie ◽  
Xueying Yang ◽  
Yi Xie
Keyword(s):  
Electronic Structure ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Active Sites ◽  
Active Species ◽  
Multiple Roles ◽  
Two Dimensional ◽  
Defect Engineering

Defect engineering could provide rich active sites, optimized electronic structure and intimate anchoring of active species, displaying multiple roles in promoting the electrocatalytic hydrogen evolution reaction.

The triple structure design of 2D amorphous Fe-doped indium phosphate nanosheets as a highly efficient electrocatalyst for water oxidation

2020 ◽  
Vol 8 (35) ◽  
pp. 18232-18243
Author(s):  
Jianxin Han ◽  
Qinghui Wei ◽  
Jifu Zhang ◽  
Bo Zhang ◽  
Can Li ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Active Sites ◽  
Structure Design ◽  
Intrinsic Activity ◽  
Two Dimensional ◽  
Fe Doping ◽  
Metal Phosphates ◽  
Engineering Strategy ◽  
Catalytic Active Sites ◽  
Structure Engineering

A triple structure engineering strategy, combining amorphization, two-dimensional morphology design and Fe doping, is developed to promote the OER activity of metal phosphates, simultaneously enhancing the catalytic active sites and intrinsic activity.

Two-dimensional graphene-like MoSe2 nanosheets anchored on hollow carbon nanofibers as a cathode catalyst for rechargeable Li–O2 batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (24) ◽  
pp. 19843-19847 ◽  
Author(s):  
Yanqing Lai ◽  
Wei Chen ◽  
Zhian Zhang ◽  
Yongqing Gan ◽  
Xing Yang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Carbon Nanofibers ◽  
Active Sites ◽  
Electronic Conductivity ◽  
Cathode Catalyst ◽  
Two Dimensional ◽  
Catalytic Active Sites ◽  
Hollow Carbon

MoSe2@HCNF hybrids are used as the catalyst of Li–O2 batteries and exhibit superior catalytic activity. The more catalytic active sites and the enhanced electronic conductivity make the MoSe2@HCNF hybrids exhibit improved catalytic activity.

One-step synthesis of cobalt-doped MoS2 nanosheets as bifunctional electrocatalysts for overall water splitting under both acidic and alkaline conditions

2018 ◽  
Vol 54 (31) ◽  
pp. 3859-3862 ◽  
Author(s):  
Qizhong Xiong ◽  
Xian Zhang ◽  
Haojie Wang ◽  
Guoqiang Liu ◽  
Guozhong Wang ◽  
...  
Keyword(s):  
Free Energy ◽  
Electronic Structure ◽  
Water Splitting ◽  
Active Sites ◽  
Hydrogen Adsorption ◽  
Mos2 Nanosheets ◽  
Adsorption Free Energy ◽  
Alkaline Conditions ◽  
One Step ◽  
Catalytic Active Sites

Cobalt covalent doping in MoS2 effectively regulates its electronic structure to decrease the hydrogen adsorption free energy for high HER and simultaneously contributes additional catalytic active sites for the OER.

Accelerating oxygen evolution electrocatalysis of two-dimensional NiFe layered double hydroxide nanosheets via space-confined amorphization

Nanoscale ◽  
2019 ◽  
Vol 11 (40) ◽  
pp. 18894-18899 ◽  
Author(s):  
Shilong Jiao ◽  
Zhaoyu Yao ◽  
Mengfan Li ◽  
Ce Mu ◽  
Huawei Liang ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Oxygen Evolution ◽  
Layered Double Hydroxide ◽  
Active Sites ◽  
Two Dimensional ◽  
Double Hydroxide

Boosting OER activity of the ultrathin 2D NiFe-LDH nanosheets via the introduction of space-confined amorphism that induces the increased active sites and optimized electronic structure.

scholarly journals Ordered clustering of single atomic Te vacancies in atomically thin PtTe2 promotes hydrogen evolution catalysis

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Xinzhe Li ◽  
Yiyun Fang ◽  
Jun Wang ◽  
Hanyan Fang ◽  
Shibo Xi ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Thermal Treatment ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Active Sites ◽  
Catalytic Properties ◽  
Reactive Intermediates ◽  
Two Dimensional ◽  
Binding Strength ◽  
Highly Active

AbstractExposing and stabilizing undercoordinated platinum (Pt) sites and therefore optimizing their adsorption to reactive intermediates offers a desirable strategy to develop highly efficient Pt-based electrocatalysts. However, preparation of atomically controllable Pt-based model catalysts to understand the correlation between electronic structure, adsorption energy, and catalytic properties of atomic Pt sites is still challenging. Herein we report the atomically thin two-dimensional PtTe2 nanosheets with well-dispersed single atomic Te vacancies (Te-SAVs) and atomically well-defined undercoordinated Pt sites as a model electrocatalyst. A controlled thermal treatment drives the migration of the Te-SAVs to form thermodynamically stabilized, ordered Te-SAV clusters, which decreases both the density of states of undercoordinated Pt sites around the Fermi level and the interacting orbital volume of Pt sites. As a result, the binding strength of atomically defined Pt active sites to H intermediates is effectively reduced, which renders PtTe2 nanosheets highly active and stable in hydrogen evolution reaction.

Sign in / Sign up

Export Citation Format

Share Document