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Journal Article 8

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2023 6

2021 1

Keywords

oxygen vacancies 5

Photocatalysis 2

+ 1

Bi2MoO6 1

CO2 activation 1

Carbon nitride 1

Cr(VI) 1

Hydrogen peroxide evolution 1

Layered double hydroxide 1

N3C vacancy 1

NO 1

NO removal 1

Persulfate 1

RhB 1

SrTiO3 1

UiO-66/MoSe2 1

Vacancies 1

ZrO2 1

carbon oxygen vacancies 1

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Activated carbon induced oxygen vacancies-engineered nickel ferrite with enhanced conductivity for supercapacitor

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 2088-2100 doi: 10.1007/s11705-023-2352-6

Abstract: Activated carbon induced oxygen vacancies-engineered nickel ferrite with enhanced conductivity for supercapacitor

Keywords: nickel ferrite conductivity     carbon oxygen vacancies    

Enhanced performance of oxygen vacancies on CO adsorption and activation over different phases of ZrO

Frontiers in Energy 2023, Volume 17, Issue 4,   Pages 545-554 doi: 10.1007/s11708-023-0867-7

Abstract: The effect of oxygen vacancies on the adsorption and activation of CO2 on the surface of differentThe calculations show that the oxygen vacancies contribute greatly to both the adsorption and activationsub>2 and, m-ZrO2 surfaces is enhanced to 5, 4, and 3 folds with the help of oxygen vacanciesFurthermore, the activation of CO2 on the ZrO2 surface where oxygen vacancies areThis finding demonstrates that the presence of oxygen vacancies promotes the activation of CO2

Keywords: CO2 activation     oxygen vacancies     ZrO2     different phases    

Enhanced photocatalytic water splitting with surface defective SrTiO

Junying LIU, Zhidong WEI, Wenfeng SHANGGUAN

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 700-709 doi: 10.1007/s11708-021-0735-2

Abstract: The surface reconstruction of SrTiO nanocrystals is attributed to the introduction of surface oxygen vacanciesthe charge transfer ability of SrTiO nanocrystals are simultaneously enhanced due to surface oxygen vacancies

Keywords: SrTiO3     surface reconstruction     oxygen vacancies     photocatalytic water splitting    

Construction of defect-containing UiO-66/MoSe heterojunctions with superior photocatalytic performance for wastewater treatment and mechanism insight

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 4,   Pages 449-459 doi: 10.1007/s11705-022-2226-3

Abstract: The existence of Mo6+ and oxygen vacancies, in addition to the Z-type heterojunction promote

Keywords: UiO-66/MoSe2     photocatalysis     dye-containing wastewater     heavy metal wastewater     oxygen vacancies    

Photoreduction adjusted surface oxygen vacancy of BiMoO for boosting photocatalytic redox performance

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 1937-1948 doi: 10.1007/s11705-023-2353-5

Abstract: In this study, Bi2MoO6 with adjustable rich oxygen vacancies was prepared by aThe experiment results show that Bi2MoO6 with rich oxygen vacancies is an excellentThe results display that the band energy of the samples with oxygen vacancies was narrowed and the light

Keywords: Bi2MoO6     oxygen vacancies     photoreduction     Cr(VI)     RhB    

Oxygen-deficient MoO/NiS heterostructure grown on nickel foam as efficient and durable self-supported electrocatalysts for hydrogen evolution reaction

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 4,   Pages 437-448 doi: 10.1007/s11705-022-2228-1

Abstract: High-performance and ultra-durable electrocatalysts are vital for hydrogen evolution reaction (HER) during water splitting. Herein, by one-pot solvothermal method, MoOx/Ni3S2 spheres comprising Ni3S2 nanoparticles inside and oxygen-deficient amorphous MoOx outside in situ grow on Ni foam (NF), to assembly the heterostructure composites of MoOx/Ni3S2/NF. By adjusting volume ratio of the solvents of ethanol to water, the optimized MoOx/Ni3S2/NF-11 exhibits the best HER performance, requiring an extremely low overpotential of 76 mV to achieve the current density of 10 mA∙cm‒2 (η10 = 76 mV) and an ultra-small Tafel slope of 46 mV∙dec‒1 in 0.5 mol∙L‒1 H2SO4. More importantly, the catalyst shows prominent high catalytic stability for HER (> 100 h). The acid-resistant MoOx wraps the inside Ni3S2/NF to ensure the high stability of the catalyst under acidic conditions. Density functional theory calculations confirm that the existing oxygen vacancy and MoOx/Ni3S2 heterostructure are both beneficial to the reduced Gibbs free energy of hydrogen adsorption (|∆GH*|) over Mo sites, which act as main active sites. The heterostructure effectively decreases the formation energy of O vacancy, leading to surface reconstruction of the catalyst, further improving HER performance. The MoOx/Ni3S2/NF is promising to serve as a highly effective and durable electrocatalyst toward HER.

Keywords: molybdenum oxides     oxygen vacancies     heterostructure     electrocatalysts     hydrogen evolution reaction    

Defective Nickle–Iron Layered Double Hydroxide for Enhanced Photocatalytic NO Oxidation with Significant Alleviation of NO2 Production

Xiaoyu Li,Xiaoshu Lv,Jian Pan,Peng Chen,Huihui Peng,Yan Jiang,Haifeng Gong,Guangming Jiang,Li'an Hou,

Engineering doi: 10.1016/j.eng.2023.06.017

Abstract: Herein, we developed a facile N2H4-driven etching (et) approach that introduces dual Ni2+ and OH− vacanciesExperimental and theoretical data reveal that the dual vacancies promote the production of reactive oxygen

Keywords: Vacancies     Layered double hydroxide     NO     +     Photocatalysis     NO removal    

Persulfate-Induced Three Coordinate Nitrogen (N3C) Vacancies in Defective Carbon Nitride for Article

Wei Miao, Yijie Wang, Ying Liu, Hehe Qin, Chengcheng Chu, Shun Mao

Engineering 2023, Volume 25, Issue 6,   Pages 214-221 doi: 10.1016/j.eng.2021.12.016

Abstract: However, the photocatalytic mechanism of the N vacancies is ambiguous and different types of N vacanciesto prepare the g-C3N4 with abundant three coordinate nitrogen (N3C) vacanciesOur results showed that the introduction of N3C vacancies in the g-C3N4 successfullyThis study demonstrates a novel strategy to introduce N3C vacancies in g-C3N4, which offers a new method

Keywords: Carbon nitride     N3C vacancy     Hydrogen peroxide evolution     Photocatalysis     Persulfate    

Title Author Date Type Operation

Activated carbon induced oxygen vacancies-engineered nickel ferrite with enhanced conductivity for supercapacitor

Journal Article

Enhanced performance of oxygen vacancies on CO adsorption and activation over different phases of ZrO

Journal Article

Enhanced photocatalytic water splitting with surface defective SrTiO

Junying LIU, Zhidong WEI, Wenfeng SHANGGUAN

Journal Article

Construction of defect-containing UiO-66/MoSe heterojunctions with superior photocatalytic performance for wastewater treatment and mechanism insight

Journal Article

Photoreduction adjusted surface oxygen vacancy of BiMoO for boosting photocatalytic redox performance

Journal Article

Oxygen-deficient MoO/NiS heterostructure grown on nickel foam as efficient and durable self-supported electrocatalysts for hydrogen evolution reaction

Journal Article

Defective Nickle–Iron Layered Double Hydroxide for Enhanced Photocatalytic NO Oxidation with Significant Alleviation of NO2 Production

Xiaoyu Li,Xiaoshu Lv,Jian Pan,Peng Chen,Huihui Peng,Yan Jiang,Haifeng Gong,Guangming Jiang,Li'an Hou,

Journal Article

Persulfate-Induced Three Coordinate Nitrogen (N3C) Vacancies in Defective Carbon Nitride for

Wei Miao, Yijie Wang, Ying Liu, Hehe Qin, Chengcheng Chu, Shun Mao

Journal Article