Cobalt-based Polymerized Porphyrinic Network for Visible-light-driven CO2 Reduction DOI

Guo‐Wei Guan,

Su‐Tao Zheng,

Shuang Ni

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(25), P. 32271 - 32281

Published: June 13, 2024

Visible-light-driven conversion of carbon dioxide to valuable compounds and fuels is an important but challenging task due the inherent stability CO2 molecules. Herein, we report a series cobalt-based polymerized porphyrinic network (PPN) photocatalysts for reduction with high activity. The introduction organic groups results in addition more conjugated electrons networks, thereby altering molecular orbital levels within networks. This integration functional effectively adjusts lowest unoccupied (LUMO) highest occupied (HOMO). PPN(Co)-NO2 exhibits outstanding performance, CO evolution rate 12 268 μmol/g/h 85.8% selectivity, surpassing most similar photocatalyst systems. performance also excellent terms apparent quantum yield (AQY) production (5.7% at 420 nm). Density theory (DFT) calculations, time-resolved photoluminescence (TRPL), electrochemical tests reveal that methyl nitro leads narrower energy gap, facilitating faster charge transfer. coupling reaction this study enables formation stable C-C bonds, enhancing structural regulation, active site diversity, catalysts photocatalytic reduction. work offers facile strategy develop reliable efficient conversion.

Language: Английский

Visual self-powered platform for ultrasensitive heavy metal detection designed on graphdiyne/graphene heterojunction and DNAzyme-triggered DNA circuit strategy DOI
Jing Xu,

Yinbing liu,

Xinqi Luo

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 485, P. 150151 - 150151

Published: March 2, 2024

Language: Английский

Citations

21
Balancing dynamic evolution of active sites for urea oxidation in practical scenarios DOI Creative Commons
Jichao Zhang, Jiexin Zhu, Liqun Kang

et al.

Energy & Environmental Science, Journal Year: 2023, Volume and Issue: 16(12), P. 6015 - 6025

Published: Jan. 1, 2023

The role of single atomic Ru site for enhanced UOR performance.

Language: Английский

Citations

41
Room-temperature aqueous synthesis of MOF-808(Zr) for selective adsorption of dye mixtures DOI
Honghao Su, Jingwei Hou, Junyong Zhu

et al.

Separation and Purification Technology, Journal Year: 2023, Volume and Issue: 333, P. 125957 - 125957

Published: Dec. 6, 2023

Language: Английский

Citations

28
How to design plasmonic Ag/SrTiO3 nanocomposites as efficient photocatalyst: Theoretical insight and experimental validation DOI Creative Commons
Quang Thang Trịnh,

Tuyen Le Van,

Thi To Nga Phan

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1002, P. 175322 - 175322

Published: June 24, 2024

An integrated theoretical-experimental investigation is performed to understand the photocatalytic and optical properties of Ag/SrTiO3 nanocomposite (Ag/STO). Theoretical reveals that catalytic activity Ag/STO increased when Ag particle size smaller, while opposite correlation observed for its visible-light absorbance efficiency. These insights suggest efficient photocatalyst needs be balanced between active interfacial site density intensity by carefully controlling dosage. Furthermore, reactive oxygen species are responsible oxidative degradation organic pollutant on could identified from Density Functional Theory (DFT) calculations. Comprehensive experiments carried out using Rhodamine-B (RhB) photodegradation test in wastewater treatment application excellently validate those theoretical predictions. Over series synthesized composites with different contents, optimum 1% wt. loading has highest 92.8% efficiency RhB after 1 hour light irradiation. Trapping also confirm crucial role O2 OH species, which was predicted DFT calculations, as primary oxidizing agents RhB. This work provides a useful framework develop novel plasmonic nanocomposites other applications.

Language: Английский

Citations

13
Cu and Zn promoted Al-fumarate metal organic frameworks for electrocatalytic CO2 reduction DOI Creative Commons
Ung Thi Dieu Thuy,

Tran Ngoc Huan,

Sandrine Zanna

et al.

RSC Advances, Journal Year: 2024, Volume and Issue: 14(5), P. 3489 - 3497

Published: Jan. 1, 2024

Metal organic frameworks (MOFs) are attractive materials to generate multifunctional catalysts for the electrocatalytic reduction of CO2 hydrocarbons. Here we report synthesis Cu and Zn modified Al-fumarate (Al-fum) MOFs, in which promotes selective CO oxygenates hydrocarbons an cascade. nanoparticles (NPs) were introduced Al-fum MOF by a double solvent method promote in-pore metal deposition, resulting reduced Cu-Zn@Al-fum drop-cast on hydrophobic gas diffusion electrode electrochemical study. is active electroreduction, with loading influencing product yields. The highest faradaic efficiency (FE) 62% achieved at -1.0 V vs. RHE conversion into CO, HCOOH, CH4, C2H4 C2H5OH, FE 28% C2H5OH pH 6.8. chemically robust matrix disperse NPs, improving electrocatalyst lifetime during minimizing transition aggregation operation.

Language: Английский

Citations

12
Large-area phosphorene for stable carbon-based perovskite solar cells DOI Creative Commons
Purevlkham Myagmarsereejid, Selengesuren Suragtkhuu, Quang Thang Trịnh

et al.

npj 2D Materials and Applications, Journal Year: 2024, Volume and Issue: 8(1)

Published: June 8, 2024

Abstract Carbon-based perovskite solar cells (c-PSCs) have attracted increasing attention due to their numerous advantages including ease of fabrication, the potential assembling flexible devices, low manufacturing costs as well large-scale production. However, c-PSCs suffer from limited hole extraction and high charge carrier recombination inadequate interface contact between carbon electrode film. Herein, we report fabrication planar with efficiency excellent stability by employing electrochemically produced large-area phosphorene flakes a hole-transporting layer (HTL). Large-area shows well-aligned band energy levels perovskite, thus led efficient reduced hysteresis behaviour. Consequently, while exhibiting under various harsh testing conditions, devices HTL delivered power conversion over 15% an open-circuit voltage 1.082 V, which is highest reported value for without traditional transporting materials date.

Language: Английский

Citations

8
Insights into the role of water and surface OH species in methane activation on copper oxide: a combined theoretical and experimental study DOI
Kartavya Bhola, Quang Thang Trịnh, Dapeng Liu

et al.

Catalysis Science & Technology, Journal Year: 2023, Volume and Issue: 13(23), P. 6764 - 6779

Published: Jan. 1, 2023

An integrated theoretical and experimental investigation reveals how the presence of water alters activity metal oxide catalysts in gas-phase activation conversion methane.

Language: Английский

Citations

15
Construction of Ni/In2O3 Integrated Nanocatalysts Based on MIL-68(In) Precursors for Efficient CO2 Hydrogenation to Methanol DOI

Yiling Wu,

Kaiji Xu,

Jian Tian

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(13), P. 16186 - 16202

Published: March 22, 2024

The efficient and economic conversion of CO2 renewable H2 into methanol has received intensive attention due to growing concern for anthropogenic emissions, particularly from fossil fuel combustion. Herein, we have developed a novel method preparing Ni/In2O3 nanocatalysts by using porous MIL-68(In) nickel(II) acetylacetonate (Ni(acac)2) as the dual precursors In2O3 Ni components, respectively. Combined with in-depth characterization analysis, it was revealed that utilization favored good distribution nanoparticles (∼6.2 nm) on support inhibited metal sintering at high temperatures. varied catalyst fabrication parameters were explored, indicating designed (Ni content 5 wt %) exhibited better catalytic performance than compared prepared In(OH)3 precursor In2O3. obtained also showed excellent durability in long-term tests (120 h). However, loading (31 would result formation Ni-In alloy phase during hydrogenation which CO selectivity 69%. This phenomenon is more obvious if had strong interaction, depending methods. In addition, aid situ diffuse reflectance infrared Fourier transform spectroscopy density functional theory (DFT) calculations, predominantly follows formate pathway methanol, HCOO* *H3CO major intermediates, while small size particles beneficial species based DFT calculation. study suggests nanocatalyst fabricated metal–organic frameworks can effectively promote thermal methanol.

Language: Английский

Citations

6
Electrocatalytic and Photocatalytic CO2 Methanation: From Reaction Fundamentals to Catalyst Developments DOI

Junbo Tian,

Wenqing Xu,

Jiajian Gao

et al.

ChemCatChem, Journal Year: 2024, Volume and Issue: 16(9)

Published: Jan. 5, 2024

Abstract Transitioning from fossil fuels to renewable energy sources is demanded due the gradual depletion of petroleum oil/gas and environmental impact carbon dioxide (CO 2 ) emissions into atmosphere. Electrocatalytic photocatalytic CO reduction methane (CH 4 using crucial for sustainable chemical/fuel production greenhouse gas reduction. In recent years, extensive research has focused on understanding fundamental aspects two approaches, such as reaction mechanisms active sites, exploring/designing novel catalytic materials. This review initially discusses fundamentals, including performance evaluation indexes, reactors, mechanisms, understand reactions. Subsequently, various catalyst preparation strategies characterization methods are summarized, trying outline design principle based obtained mechanisms. Finally, challenges perspectives future development in this area discussed presented. It expected provide a comprehensive photo/electrocatalytic methanation, valuable knowledge novice researchers, helpful reference endeavors.

Language: Английский

Citations

4
Seeding Atomic Silver into Internal Lattice Sites of Transition Metal Oxide for Advanced Electrocatalysis DOI
Wenjun Song, Kun He, Chenghang Li

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(28)

Published: April 17, 2024

Transition metal oxides (TMOs) are widely studied for loading of various catalysts due to their low cost and high structure flexibility. However, the prevailing close-packed nature most TMOs crystals has restricted available sites surface only, while internal bulk lattice remains unactuated inaccessible narrow space that blocks out key reactants and/or particulate catalysts. Herein, using tunnel-structured MnO

Language: Английский

Citations

4