Exploring the CO2 reduction reaction mechanism on Pt/TiO2 with the ambient-pressure X-ray photoelectron spectroscopy

2021 ◽  
pp. 150933
Author(s):  
Huan Zhang ◽  
Lei Xie ◽  
Chaoqin Huang ◽  
Zhiguo Ren ◽  
Hongbing Wang ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Photoelectron Spectroscopy ◽  
Ambient Pressure ◽  
Co2 Reduction ◽  
Reduction Reaction ◽  
X Ray ◽  
Co2 Reduction Reaction

Probing the Reaction Mechanism in CO2 Hydrogenation on Bimetallic Ni/Cu(100) with Near-Ambient Pressure X-Ray Photoelectron Spectroscopy

2019 ◽  
Vol 12 (2) ◽  
pp. 2548-2554
Author(s):  
Yinjuan Ren ◽  
Chunyu Xin ◽  
Zhongkai Hao ◽  
Haicheng Sun ◽  
Steven L. Bernasek ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Photoelectron Spectroscopy ◽  
Ambient Pressure ◽  
Co2 Hydrogenation ◽  
X Ray

scholarly journals Fast real time and quantitative gas analysis method for the investigation of the CO2 reduction reaction mechanism

2018 ◽  
Vol 89 (11) ◽  
pp. 114102 ◽  
Author(s):  
Robin Mutschler ◽  
Wen Luo ◽  
Emanuele Moioli ◽  
Andreas Züttel
Keyword(s):  
Reaction Mechanism ◽  
Real Time ◽  
Co2 Reduction ◽  
Reduction Reaction ◽  
Gas Analysis ◽  
Analysis Method ◽  
Co2 Reduction Reaction

scholarly journals Understanding the Oxygen Evolution Reaction Mechanism on CoOx using Operando Ambient-Pressure X-ray Photoelectron Spectroscopy

2017 ◽  
Vol 139 (26) ◽  
pp. 8960-8970 ◽  
Author(s):  
Marco Favaro ◽  
Jinhui Yang ◽  
Silvia Nappini ◽  
Elena Magnano ◽  
Francesca M. Toma ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Oxygen Evolution ◽  
Photoelectron Spectroscopy ◽  
Oxygen Evolution Reaction ◽  
Ambient Pressure ◽  
X Ray

scholarly journals Reaction mechanism on Ni-C2-NS single-atom catalysis for the efficient CO2 reduction reaction

2021 ◽  
Vol 16 (1) ◽  
pp. 256-265
Author(s):  
Qi Yuan ◽  
Youyong Li ◽  
Peiping Yu ◽  
Bingyun Ma ◽  
Liang Xu ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Co2 Reduction ◽  
Reduction Reaction ◽  
Single Atom ◽  
Co2 Reduction Reaction

CO2 Reduction to Propanol by Copper Foams: A Pre- and Post-Catalysis Study

2020 ◽  
Author(s):  
Jennifer A. Rudd ◽  
Ewa Kazimierska ◽  
Louise B. Hamdy ◽  
Odin Bain ◽  
Sunyhik Ahn ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Photoelectron Spectroscopy ◽  
Carbon Capture ◽  
Surface Composition ◽  
Co2 Reduction ◽  
Structural Rearrangement ◽  
Copper Electrode ◽  
Ex Situ ◽  
X Ray ◽  
Copper Electrodes

The utilization of carbon dioxide is a major incentive for the growing field of carbon capture. Carbon dioxide could be an abundant building block to generate higher value products. Herein, we describe the use of porous copper electrodes to catalyze the reduction of carbon dioxide into higher value products such as ethylene, ethanol and, notably, propanol. For <i>n</i>-propanol production, faradaic efficiencies reach 4.93% at -0.83 V <i>vs</i> RHE, with a geometric partial current density of -1.85 mA/cm<sup>2</sup>. We have documented the performance of the catalyst in both pristine and urea-modified foams pre- and post-electrolysis. Before electrolysis, the copper electrode consisted of a mixture of cuboctahedra and dendrites. After 35-minute electrolysis, the cuboctahedra and dendrites have undergone structural rearrangement. Changes in the interaction of urea with the catalyst surface have also been observed. These transformations were characterized <i>ex-situ</i> using scanning electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. We found that alterations in the morphology, crystallinity, and surface composition of the catalyst led to the deactivation of the copper foams.

Graphene Supported Tungsten Carbide as Catalyst for Electrochemical Reduction of CO2

2019 ◽  
Author(s):  
Sahithi Ananthaneni ◽  
Rees Rankin
Keyword(s):  
Tungsten Carbide ◽  
Electrochemical Reduction ◽  
Low Cost ◽  
Co2 Reduction ◽  
Platinum Group Metal ◽  
Reduction Reaction ◽  
Metal Carbides ◽  
Depth Study ◽  
Reduction Of Co2 ◽  
Co2 Reduction Reaction

<div>Electrochemical reduction of CO2 to useful chemical and fuels in an energy efficient way is currently an expensive and inefficient process. Recently, low-cost transition metal-carbides (TMCs) are proven to exhibit similar electronic structure similarities to Platinum-Group-Metal (PGM) catalysts and hence can be good substitutes for some important reduction reactions. In this work, we test graphenesupported WC (Tungsten Carbide) nanocluster as an electrocatalyst for the CO2 reduction reaction. Specifically, we perform DFT studies to understand various possible reaction mechanisms and determine the lowest thermodynamic energy landscape of CO2 reduction to various products such as CO, HCOOH, CH3OH, and CH4. This in-depth study of reaction energetics could lead to improvements and develop more efficient electrocatalysts for CO2 reduction.<br></div>

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