A Review on Ceo<sub>2</sub>‐Based Electrocatalyst and Photocatalyst in Energy Conversion

Li, Qingqing; Song, Lianpeng; Liang, Zhong; Sun, Ming; Wu, Tong; Huang, Bolong; Luo, Feng; Du, Yaping; Yan, Chun‐Hua

doi:10.1002/aesr.202170004

Cited by 38 publications

(14 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is well known that CeO 2 easily activates CO 2 and reduces it to produce methanol . Electrochemical reduction of CO 2 to methanol is also reported in which CeO 2 assists the dehydrogenation of adsorbed methanol on the catalyst surface. , The occurrence of various carbonate, formate, and carboxylate species on the CeO 2 surface exemplifies that CeO 2 has suitable active sites for CO 2 adsorption . CeO 2 application is not only limited to its acidic–basic properties, but it also exhibits excellent activity in the oxidation reaction.…”

Section: Introductionmentioning

confidence: 97%

“…49,50 The occurrence of various carbonate, formate, and carboxylate species on the CeO 2 surface exemplifies that CeO 2 has suitable active sites for CO 2 adsorption. 51 CeO 2 application is not only limited to its acidic−basic properties, but it also exhibits excellent activity in the oxidation reaction. Morphologically tuned facet-dependent activity of CeO 2 with a suitably exposed plane (100) has been found useful for oxidation reactions.…”

Section: ■ Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Efficient Activation of CO₂ over Ce-MOF-derived CeO₂ for the Synthesis of Cyclic Urea, Urethane, and Carbamate

Srivastava

2021

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

The synthesis of various commodity chemicals like cyclic urea, urethanes, and carbamates via effective utilization of CO2 has proved to be highly advantageous. Production of the chemicals mentioned above from CO2 requires a complicated catalyst design and stringent reaction conditions. A simple catalyst possessing suitable sites that can effectively adsorb and activate CO2 is required to synthesize these valuable chemicals. The catalyst should also have optimum acidity for amine adsorption to facilitate these reactions. This study demonstrates the synthesis of a highly efficient catalyst, Ce-BTC MOF-derived CeO2, for CO2 activation. Ce-BTC-MOF is synthesized and calcined to obtain Ce-BTC MOF-derived CeO2. The presence of various facets and the oxygen vacancy required for CO2 activation and adsorption is confirmed using Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and high-resolution transmission electron microscopy (HRTEM). CO2 adsorption efficiency is evaluated using the adsorption experiments. The acidity and basicity of the catalyst are evaluated using the temperature-programmed desorption (TPD) analysis. Cyclic urea is produced by the reaction of diamine and CO2 at low CO2 pressure, while the CO2 and amino alcohol reaction produce cyclic urethane. The reaction between CO2 and primary amine produces carbamate. The calcination of Ce-BTC MOF at 573 K generates a CeO2 catalyst, which offers an excellent activity for producing these chemicals. Ce-BTC MOF-derived CeO2 exhibits efficient recyclability and stability. The developed ecofriendly and robust catalyst will be of significant scientific interest because it can be industrially deployed in producing these commercial synthetic intermediates.

show abstract

Section: Introductionmentioning

confidence: 97%

Section: ■ Introductionmentioning

confidence: 99%

Efficient Activation of CO₂ over Ce-MOF-derived CeO₂ for the Synthesis of Cyclic Urea, Urethane, and Carbamate

Srivastava

2021

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

show abstract

“…Tuning such interactions is possible by varying the type and amount of such oxides in the catalyst support as well as the synthesis procedure. This has been shown recently with Pd–CeO 2 /C materials for alkaline electro-oxidation reactions. − …”

Section: Introductionmentioning

confidence: 52%

Improving Alkaline Hydrogen Oxidation Activity of Palladium through Interactions with Transition-Metal Oxides

Pagliaro

Wen

et al. 2022

ACS Catal.

View full text Add to dashboard Cite

Anion-exchange membrane fuel cells (AEMFCs) are a promising electrochemical power generation technology that will most likely find applications in stationary power supply and mobile applications such as electric vehicles in the future. One of the main technological challenges with AEMFCs is developing catalysts with improved activities to reduce the current overpotential losses in the cell. A historically underappreciated challenge for AEMFC catalyst development is the sluggish hydrogen oxidation reaction (HOR) kinetics at the anode that still requires high loadings of platinum group metals. Here, we demonstrate that the alkaline HOR activity of palladium nanoparticles is enhanced through strong interactions with transitionmetal oxides. A series of transition-metal oxides in the IV oxidation state (ZrO 2 , CeO 2 , SnO 2 , and RuO 2 ) were deposited onto Vulcan XC-72 carbon. Pd nanoparticles (20 wt %) were then grown on each support. This series of catalysts were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, and high-resolution transmission electron microscopy. The alkaline HOR activity was investigated using cyclic voltammetry and linear sweep voltammetry. Of the several systems that were considered, Pd−RuO 2 /C displayed the highest HOR surface-specific activity (49 μA cm Pd −2). It had an onset for CO electro-oxidation at around 200 mV, which is lower than the other materials analyzed herein. The results were explained using first-principles calculations by investigating Tafel and Volmer reactions. These results suggested that increased HOR activity is favored by the population of the Pd surface with OH − groups at lower overpotentials. These insights are valuable for the future design of next-generation catalysts with high activity toward alkaline HOR required by future highperformance AEMFCs.

show abstract

“…Recently, CeO 2 has been introduced as an electrocatalyst material for various electrochemical applications, such as OER, HER, ORR (oxygen reduction reaction), MOR/EOR (methanol/ethanol oxidation reaction), and NRR (nitrogen reduction reaction). 20 The unique property of reversible shuttling between Ce 3+ and Ce 4+ oxidation states, abundant oxygen vacancy defects, and surface oxygen ion exchange not only makes CeO 2 a potential candidate to possess considerable electrochemical activities but also offers to generate strong interaction with other materials as a matrix. 21 Hence, the conjugation of CuO x with CeO 2 is of prime interest due to the synergistic effect and cooperative redox property.…”

Section: Cuo Ohmentioning

confidence: 99%

Effect of Cooperative Redox Property and Oxygen Vacancies on Bifunctional OER and HER Activities of Solvothermally Synthesized CeO₂/CuO Composites

Ghosh

Pradhan

2023

Langmuir

View full text Add to dashboard Cite

Herein, we report the synthesis of the CeO 2 /CuO composite as a bifunctional oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) electrocatalyst in a basic medium. The electrocatalyst with an optimum 1:1 CeO 2 /CuO shows low OER and HER overpotentials of 410 and 245 mV, respectively. The Tafel slopes of 60.2 and 108.4 mV/dec are measured for OER and HER, respectively. More importantly, the 1:1 CeO 2 /CuO composite electrocatalyst requires only a 1.61 V cell voltage to split water to achieve 10 mA/cm 2 in a two-electrode cell. The role of oxygen vacancies and the cooperative redox activity at the interface of the CeO 2 and CuO phases is explained in the light of Raman and XPS studies, which play the determining factor for the enhanced bifunctional activity of the 1:1 CeO 2 /CuO composite. This work provides guidance for the optimization and design of a low-cost alternative electrocatalyst to replace the expensive noble-metalbased electrocatalyst for overall water splitting.

show abstract

A Review on Ceo₂‐Based Electrocatalyst and Photocatalyst in Energy Conversion

Cited by 38 publications

References 0 publications

Efficient Activation of CO₂ over Ce-MOF-derived CeO₂ for the Synthesis of Cyclic Urea, Urethane, and Carbamate

Efficient Activation of CO₂ over Ce-MOF-derived CeO₂ for the Synthesis of Cyclic Urea, Urethane, and Carbamate

Improving Alkaline Hydrogen Oxidation Activity of Palladium through Interactions with Transition-Metal Oxides

Effect of Cooperative Redox Property and Oxygen Vacancies on Bifunctional OER and HER Activities of Solvothermally Synthesized CeO₂/CuO Composites

Contact Info

Product

Resources

About

A Review on Ceo2‐Based Electrocatalyst and Photocatalyst in Energy Conversion

Cited by 38 publications

References 0 publications

Efficient Activation of CO2 over Ce-MOF-derived CeO2 for the Synthesis of Cyclic Urea, Urethane, and Carbamate

Efficient Activation of CO2 over Ce-MOF-derived CeO2 for the Synthesis of Cyclic Urea, Urethane, and Carbamate

Improving Alkaline Hydrogen Oxidation Activity of Palladium through Interactions with Transition-Metal Oxides

Effect of Cooperative Redox Property and Oxygen Vacancies on Bifunctional OER and HER Activities of Solvothermally Synthesized CeO2/CuO Composites

Contact Info

Product

Resources

About

A Review on Ceo₂‐Based Electrocatalyst and Photocatalyst in Energy Conversion

Efficient Activation of CO₂ over Ce-MOF-derived CeO₂ for the Synthesis of Cyclic Urea, Urethane, and Carbamate

Efficient Activation of CO₂ over Ce-MOF-derived CeO₂ for the Synthesis of Cyclic Urea, Urethane, and Carbamate

Effect of Cooperative Redox Property and Oxygen Vacancies on Bifunctional OER and HER Activities of Solvothermally Synthesized CeO₂/CuO Composites