Pt atoms stabilized on hexagonal boron nitride as efficient single-atom catalysts for CO oxidation: a first-principles investigation

RSC Advances ◽  
2015 ◽  
Vol 5 (14) ◽  
pp. 10452-10459 ◽  
Author(s):  
Xin Liu ◽  
Ting Duan ◽  
Changgong Meng ◽  
Yu Han
Keyword(s):  
Electronic Structure ◽  
Boron Nitride ◽  
Co Oxidation ◽  
First Principles ◽  
Hexagonal Boron Nitride ◽  
Single Atom ◽  
Vacancy Defects

Taking CO oxidation as a probe, we investigated the electronic structure and reactivity of Pt atoms stabilized by vacancy defects on hexagonal boron nitride (h-BN) by first-principles-based calculations.

scholarly journals First-Principles Investigations of Single Metal Atoms (Sc, Ti, V, Cr, Mn, and Ni) Embedded in Hexagonal Boron Nitride Nanosheets for the Catalysis of CO Oxidation

2019 ◽  
Vol 4 (3) ◽  
pp. 65 ◽  
Author(s):  
Yi Liu ◽  
Li-Ming Yang ◽  
Eric Ganz
Keyword(s):  
Co Oxidation ◽  
First Principles ◽  
Low Temperatures ◽  
Hexagonal Boron Nitride ◽  
Superior Performance ◽  
Single Atom ◽  
Boron Nitride Nanosheets ◽  
Metal Atoms ◽  
Transition Metal Atoms ◽  
Reaction Processes

We evaluated isolated transition metal atoms (Sc, Ti, V, Cr, Mn, and Ni) embedded in hexagonal-BN as novel single atom catalysts for CO oxidation. We predicted that embedded Ni atoms should have superior performance for this task. Ti, V, and Mn bind CO2 too strongly and so the reaction will not proceed smoothly. We studied the detailed reaction processes for Sc, Cr, and Ni. The Langmuir–Hinshelwood (LH), Eley–Rideal (ER), and the new termolecular Eley–Rideal (TER) processes for CO oxidation were investigated. Sc was not effective. Cr primarily used the ER process, although the barrier was relatively large at 1.30 eV. Ni was the best of the group, with a 0.44 eV barrier for LH, and a 0.47 eV barrier for TER. Therefore, we predicted that the LH and TER processes could operate at relatively low temperatures between 300 and 500 K.

Copper atoms embedded in hexagonal boron nitride as potential catalysts for CO oxidation: a first-principles investigation

RSC Advances ◽  
2014 ◽  
Vol 4 (73) ◽  
pp. 38750-38760 ◽  
Author(s):  
Xin Liu ◽  
Ting Duan ◽  
Yanhui Sui ◽  
Changgong Meng ◽  
Yu Han
Keyword(s):  
Charge Transfer ◽  
Boron Nitride ◽  
Co Oxidation ◽  
First Principles ◽  
Hexagonal Boron Nitride

The embedment in h-BN makes Cu states compatible to reactant states and facilitates the charge transfer for reaction to proceed.

scholarly journals First-Principles Identification of Single Photon Emitters Based on Carbon Clusters in Hexagonal Boron Nitride

2021 ◽  
Vol 125 (6) ◽  
pp. 1325-1335 ◽  
Author(s):  
Cesar Jara ◽  
Tomáš Rauch ◽  
Silvana Botti ◽  
Miguel A. L. Marques ◽  
Ariel Norambuena ◽  
...  
Keyword(s):  
Boron Nitride ◽  
First Principles ◽  
Single Photon ◽  
Hexagonal Boron Nitride ◽  
Carbon Clusters ◽  
Single Photon Emitters

First principles and machine learning based superior catalytic activities and selectivities for N2 reduction in MBenes, defective 2D materials and 2D π-conjugated polymer-supported single atom catalysts

2021 ◽  
Author(s):  
Mohammad Zafari ◽  
Arun S. Nissimagoudar ◽  
Muhammad Umer ◽  
Geunsik Lee ◽  
Kwang S. Kim
Keyword(s):  
Machine Learning ◽  
Nitrogen Fixation ◽  
First Principles ◽  
Conjugated Polymer ◽  
2D Materials ◽  
Single Atom ◽  
Vacancy Defects ◽  
Catalytic Activities ◽  
Polymer Supported ◽  
New Machine

The catalytic activity and selectivity can be improved for nitrogen fixation by using hollow sites and vacancy defects in 2D materials, while a new machine learning descriptor accelerates screening of efficient electrocatalysts.

scholarly journals Effects of Hexagonal Boron Nitride Encapsulation on the Electronic Structure of Few-Layer MoS2

2019 ◽  
Vol 123 (23) ◽  
pp. 14797-14802 ◽  
Author(s):  
Xu Han ◽  
Jiangxiazi Lin ◽  
Junwei Liu ◽  
Ning Wang ◽  
Ding Pan
Keyword(s):  
Electronic Structure ◽  
Boron Nitride ◽  
Hexagonal Boron Nitride
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