Improving the pore properties of porous aromatic frameworks in two aspects via partition strategy DOI Open Access

Hengtao Lei,

Zhaofu Zhang,

Yuhui Zhai

et al.

Chemical Synthesis, Journal Year: 2024, Volume and Issue: 4(4)

Published: Oct. 14, 2024

Microporous solids are famous for their high surface area and pore size at the molecular scale, which crucial applications of adsorption, separation catalysis. An ideal porous solid would simultaneously have a nanopores with desired opening size. However, due to uncontrollable reaction process organic frameworks (POFs), acquisition such is still technically limited. Herein, we reported simple but platform-wide partition strategy improve porosity aromatic (PAFs) in two aspects. This was achieved by introducing unit flexible linkage segment original voids PAFs into multiple micropore domains. The obtained partitioning 130%-217% increments creation extra accessible surfaces while pores segmented smaller ones. Notably, showed significantly increased adsorption capacity CO2 improved area. At same time, narrowed allowed selective capture dye molecules differences. Similar parent PAFs, retained stability harsh environments. A universal will be an important step improving PAF functions.

Language: Английский

Perovskite Crystallization and Hot Carrier Dynamics Manipulation Enables Efficient and Stable Perovskite Solar Cells with 25.32% Efficiency DOI
Tai‐Sing Wu, Peng Wang,

Liangding Zheng

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(24)

Published: April 29, 2024

Abstract Modulating perovskite crystallization and understanding hot carriers (HCs) dynamics in films are very critical to achieving high‐performance solar cells (PSCs). Herein, a small organic molecule (6BAS) with multisite anchors (C═O) as an efficient additive is introduced into PbI 2 precursors modulate during two‐step sequential deposition. The chemical interaction between 6BAS enables more preferential crystal enlarged interplanar spacing of lattice, which beneficial the penetration ammonium salts layer complete conversion perovskite, consequently promoting realize high‐quality larger grain size reduced defect state. By ultrafast spectroscopy, it found that incorporation can efficiently prolong HCs cooling, helps enhance transfer retard charge carrier recombination device. As result, doped‐PSCs efficiency significantly enhances 25.32% from 22.91%. target device achieves enhanced long‐term stability. Only 6% degradation realized for un‐encapsulated after 70 days under N . Meanwhile, 6BAS‐treated retains 95% its initial PCE 1160 h operation at maximum power point continuous AM 1.5 G illumination.

Language: Английский

Citations

18
Towards operation‐stabilizing perovskite solar cells: Fundamental materials, device designs, and commercial applications DOI Creative Commons

Jian-Fang Qin,

Zhigang Che,

Yifei Kang

et al.

InfoMat, Journal Year: 2024, Volume and Issue: 6(4)

Published: Feb. 1, 2024

Abstract Over the last decade, perovskite solar cells (PSCs) have drawn extensive attention owing to their high power conversion efficiency (single junction: 26.1%, perovskite/silicon tandem: 33.9%) and low fabrication cost. However, short lifespan of PSCs with initial still blocks practical applications. This operational instability may originate from intrinsic extrinsic degradation materials or devices. Although lifetime has been prolonged through component, crystal, defect, interface, encapsulation engineering, so on, systematic analysis failure regularity for perspective devices against multiple operating stressors is indispensable. In this review, we start elaboration predominant pathways mechanism under working stressors. Then strategies improving long‐term durability respect fundamental materials, interface designs, device summarized. Meanwhile, key results discussed understand limitation assessing stability, potential applications in indoor photovoltaics wearable electronics are demonstrated. Finally, promising proposals, encompassing material processing, film formation, strengthening, structure designing, encapsulation, provided improve stability promote commercialization. image

Language: Английский

Citations

16
Advanced Porous Aromatic Frameworks: A Comprehensive Overview of Emerging Functional Strategies and Potential Applications DOI

Hamid Ali,

Yasin Orooji, Abdullah Yahya Abdullah Alzahrani

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 18, 2025

Porous aromatic frameworks (PAFs) are a fundamental group of porous materials characterized by their distinct structural features and large surface areas. These synthesized from building units linked strong carbon–carbon bonds, which confer exceptional rigidity long-term stability. PAFs functionalities may arise directly the intrinsic chemistry or through postmodification motifs using well-defined chemical processes. Compared to other traditional such as zeolites metallic-organic frameworks, demonstrate superior stability under severe treatments due robust bonding. Even in challenging environments, ease functionalization flexibility specificity. Research on has significantly expanded accelerated over past decade, necessitating comprehensive overview key advancements this field. This review provides an in-depth analysis recent advances synthesis, functionalization, dimensionality PAFs, along with distinctive properties wide-ranging applications. explores innovative methodologies strategies for functionalizing structures, manipulation tailor specific potential Similarly, application areas, including batteries, absorption, sensors, CO2 capture, photo-/electrocatalytic usages, supercapacitors, separation, biomedical discussed detail, highlighting versatility addressing modern scientific industrial challenges.

Language: Английский

Citations

3
Nanoplatforms Based on Covalent Organic Frameworks (COFs) for Biomedical Applications DOI
Shuang Liang, Menghao Li, Manlin Qi

et al.

Chemistry of Materials, Journal Year: 2023, Volume and Issue: 35(20), P. 8353 - 8370

Published: Oct. 12, 2023

Covalent organic frameworks (COFs) make up an emerging class of crystalline porous materials mainly composed light elements in the form dynamic covalent bonds. Owing to their two- or three-dimensional network structures and ideal properties, including low density, large specific surface area, high chemical stability, good biocompatibility, COFs have shown a wide range applications optoelectronic devices, energy conversion storage, adsorption separation, sensing, catalysis, biomedicine. This review provides overview recent advances functional COF-based nanoplatforms for biological diagnosis treatment, such as enzyme protein drug delivery, photodynamic/photothermal therapy, synergistic treatment. Challenges future directions developing biomedicine related are also discussed. We envisage that this will inspire scientists, chemists, biologists, clinical doctors working fields work closely move field toward trials human healthcare.

Language: Английский

Citations

36
Ultrathin Free‐Standing Porous Aromatic Framework Membranes for Efficient Anion Transport DOI

Wenguang Du,

Lin Liu,

Liying Yin

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(22)

Published: March 26, 2024

Abstract Porous aromatic frameworks (PAFs) show promising potential in anionic conduction due to their high stability and customizable functionality. However, the insolubility of most PAFs presents a significant challenge processing into membranes subsequent applications. In this study, continuous PAF with adjustable thickness were successfully created using liquid‐solid interfacial polymerization. The rigid backbone stable C−C coupling endow membrane superior chemical dimensional stabilities over conventional polymer membranes. Different quaternary ammonium functionalities anchored through flexible alkyl chains tunable length. optimal exhibited an OH − conductivity 356.6 mS ⋅ cm −1 at 80 °C 98 % relative humidity. Additionally, outstanding alkaline stability, retaining 95 its after 1000 hours 1 M NaOH. To best our knowledge, is first application materials anion exchange membranes, achieving highest exceptional chemical/dimensional stability. This work provides possibility for conductive

Language: Английский

Citations

13
Porous organic framework membranes based on interface-induced polymerisation: design, synthesis and applications DOI Creative Commons
Lin Liu,

Ruihe Yu,

Liying Yin

et al.

Chemical Science, Journal Year: 2024, Volume and Issue: 15(6), P. 1924 - 1937

Published: Jan. 1, 2024

Porous organic frameworks (POFs) are novel porous materials that have attracted much attention due to their extraordinary properties, such as high specific surface area, tunable pore size, stability and ease of functionalisation. However, conventional synthesised POFs mostly large-sized particles or insoluble powders, which difficult recycle low mass transfer efficiencies, limiting the development cutting-edge applications. Therefore, processing POF into membrane structures is great significance. In recent years, interface engineering strategies proved be efficient methods for formation membranes. this perspective, advances in use interfaces prepare membranes reviewed. The challenges strategy potential applications formed discussed.

Language: Английский

Citations

10
Efficient photodegradation of perfluoroalkyl substances under visible light by hexagonal ZnIn2S4 nanosheets DOI

Fuyu Liu,

Hui Xue,

Tingshuo Kang

et al.

Journal of Environmental Sciences, Journal Year: 2024, Volume and Issue: 148, P. 116 - 125

Published: Jan. 17, 2024

Language: Английский

Citations

8
Metal single atom-oxygen modification induced transformation of carbon nitride-based heterojunctions from type-II to S-scheme for efficient photocatalytic overall water splitting DOI
Haiping Li, Fei Yu, Aifeng Li

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 489, P. 151219 - 151219

Published: April 11, 2024

Language: Английский

Citations

7
Construction of Porous Aromatic Frameworks with Specifically Designed Motifs for Charge Storage and Transport DOI
Yuyang Tian, Fengchao Cui, Zheng Bian

et al.

Accounts of Chemical Research, Journal Year: 2024, Volume and Issue: 57(15), P. 2130 - 2143

Published: July 24, 2024

ConspectusPorous frameworks possess high porosity and adjustable functions. The two features conjointly create sufficient interfaces for matter exchange energy transfer within the skeletons. For crystalline porous frameworks, including metal organic (MOFs) covalent (COFs), their long-range ordered structures indeed play an important role in managing versatile physicochemical behaviors such as electron or band gap engineering. It is now feasible to predict functions based on unveiled structure-performance relationships. In contrast, (POFs) represent a member of solid family with no regularity. case POFs, randomly packed building units disordered connections hinder electronic structural consistency throughout entire networks. However, many investigations have demonstrated that POFs could also be designed originated from local motifs.In this Account, we will first provide overview design synthesis principles aromatic (PAFs), which are typical exceptional stability. Specifically, achieved by specific in-framework motifs demonstrated. This strategy particularly intuitive introduce desired PAFs, owing tolerance PAFs harsh chemical treatments synthetic conditions. can either obtained selecting suitable units, sometimes aid computational screening, emerge product coupling reactions during process. Radical incorporating persistent radical molecule unit, rigid framework may facilitate formation species trapping spins network, avoid delocalizing recombining processes. Alternatively, formed linkages. reaction plays construction functional like diacetylene. highly porous, showed significant performance anodes lithium-ion batteries. To improve charge transport framework, connecting manner were cohesively considered, fully conjugated backbone was built up. another case, explicit cross-coupling ensured precise assembly donating accepting abilities; therefore, moving direction photogenerated electrons rationally controlled. Constructing designing D-A system introduced exciting properties photovoltaic photocatalysis, stable improved applications perovskite solar cells productions. These shed light designable combination intrinsic effective storage conversion.

Language: Английский

Citations

7
Ultra-uniform Perovskite Crystals Formed in the Presence of Tetrabutylammonium bistriflimide Afford Efficient and Stable Perovskite Solar Cells DOI Creative Commons
Jae-Keun Lim, Alwani Imanah Rafieh, Naoyuki Shibayama

et al.

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Compositional engineering of organic-inorganic metal halide perovskite allows for improved optoelectrical properties, however, phase segregation occurs during crystal nucleation and limits solar cell device performance. Herein, we show that by applying tetrabutylammonium bistriflimide as an additive in the precursor solution, ultra-uniform crystals are obtained, which effectively increases As a result, power conversion efficiencies (PCEs) 24.5% 21.2% module achieved, together with high stability under illumination, humidity elevated thermal conditions.

Language: Английский

Citations

7