Mineralization and Self‐assembly of Gold Nanoparticles using Sulfur Amino Acid Modified Hierarchically Porous Metal‐Organic Frameworks

Liu, Xiao; Liang, Yaoyu; Liu, Jiayu; Shi, Se; Wang, Yuefei; You, Shengping; Qi, Wei; Su, Rongxin; He, Zhimin

doi:10.1002/slct.202004117

Cited by 3 publications

(3 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is well known that thiol groups have a stronger affinity for coinage metals, particularly gold and silver. Moreover, there have been several reports of post-synthetically modified thiol-functionalized UiO-66 MOFs for the selective removal of gold. , Hence, gold was selected as the catalytically active center to establish the trade-off between the stability and catalytic activity of ML-U66SX as catalyst supports under NaBH 4 -mediated 4-NP hydrogenation. The existence of thiolate-protected gold nanoclusters (gNCs) was evident from a red-shifted peak of S2p 3/2 (from 163.6 to 161.7 eV) in the gold-impregnated ML-U66SX MOFs (Figure S26 and Table S2).…”

Section: Resultsmentioning

confidence: 99%

Systematic Thiol Decoration in a Redox-Active UiO-66-(SH)₂ Metal–Organic Framework: A Case Study under Oxidative and Reductive Conditions

et al. 2023

View full text Add to dashboard Cite

The practical applicability of thiolated metal–organic frameworks (MOFs) remains challenging due to their low crystallinity and transient stability. Herein, we present a one-pot solvothermal synthesis process using varying ratios of 2,5-dimercaptoterephthalic acid (DMBD) and 1,4-benzene dicarboxylic acid (100/0, 75/25, 50/50, 25/75, and 0/100) to prepare stable mixed-linker UiO-66-(SH)2 MOFs (ML-U66SX). For each variant, the effects of different linker ratios on the crystallinity, defectiveness, porosity, and particle size have been discussed in detail. In addition, the impact of modulator concentration on these features has also been described. The stability of ML-U66SX MOFs was investigated under reductive and oxidative chemical conditions. The mixed-linker MOFs were used as sacrificial catalyst supports to highlight the interplay of template stability on the rate of the gold-catalyzed 4-nitrophenol hydrogenation reaction. The release of catalytically active gold nanoclusters originating from the framework collapse decreased with the controlled DMBD proportion, resulting in a 59% drop in the normalized rate constants (9.11–3.73 s–1 mg–1). In addition, post-synthetic oxidation (PSO) was used to further probe the stability of the mixed-linker thiol MOFs under harsh oxidative conditions. Following oxidation, the UiO-66-(SH)2 MOF underwent immediate structural breakdown, unlike other mixed-linker variants. Along with crystallinity, the microporous surface area of the post-synthetically oxidized UiO-66-(SH)2 MOF could be increased from 0 to 739 m2 g–1. Thus, the present study delineates a mixed-linker strategy to stabilize the UiO-66-(SH)2 MOF under harsh chemical conditions through meticulous thiol decoration.

show abstract

Section: Resultsmentioning

confidence: 99%

Systematic Thiol Decoration in a Redox-Active UiO-66-(SH)₂ Metal–Organic Framework: A Case Study under Oxidative and Reductive Conditions

et al. 2023

View full text Add to dashboard Cite

show abstract

“…There have been several reports of post-synthetically modified thiol functionalized UiO-66 MOFs displaying strong affinity towards Au (III) ions and being investigated for their selective removal of gold ions. 53,54 Recently, Wu et. al.…”

Section: Behavioral Performance In Reductive Environmentmentioning

confidence: 99%

Mixed-Ligand Assisted Direct Synthesis of Redox-Active UiO-66-(SH)2 Metal Organic Frameworks and Their Behavioural Pattern in Reductive and Oxidative Environments

Chowdhury

Sharma

Kundu

et al. 2022

Preprint

View full text Add to dashboard Cite

Synthesis, storage, and characterization of thiol functionalized metal-organic frameworks (MOFs) is highly challenging. However, they continue to be of great interest due to their broad spectrum of applications. In this work, for the first time, a solid solution approach has been adopted to dilute the thiol content in UiO-66-(SH)2 [Universitetet i Oslo] MOF by terephthalic acid linker without influencing its topology. The solid dilution had an overall impact on the crystallinity, defects, porosity and particle size of the UiO-66-(SH)2 framework. This study has the potential to significantly influence the syntheses of nanoscale thiol functionalized MOF materials and their applications in photocatalysis, water purification and drug delivery. This work also incorporates the performance study of the mixed-linker thiol MOFs under reductive and oxidative conditions. The rate of para-nitrophenolate hydrogenation under reductive conditions were mainly governed by the stability of the mixed-linker MOFs as catalyst supports. Whereas, post synthetic oxidation (PSO) was used to produce sulfonic acid tagged mixed-linker UiO-66 frameworks to probe the behavioral pattern in oxidative conditions of the parent mixed-linker thiol MOFs. The mixed-linker strategy was critical in preventing the frameworks from losing their crystallinity and porosity, upon oxidation. Thus, this work also paves the way for a general strategy to impart stability to thiol tagged UiO-66 framework having wide ranging applications.

show abstract

“…It is possible to tune the particle size of MOFs to nanometers by controlling the reaction temperature or time, changing the initial reactants, and adding surfactants, and so on 241 . The small particle size can shorten the migration distance of ions and charges, and effectively contact the electrolyte 144 .…”

Section: Regulation Strategies For Improving Lithium/sodium Storage Performance Of Mofsmentioning

confidence: 99%

Strategies to improve electrochemical performances of pristine metal‐organic frameworks‐based electrodes for lithium/sodium‐ion batteries

et al. 2021

View full text Add to dashboard Cite

Metal‐organic frameworks (MOFs) have attracted considerable attention as promising next‐generation active electrode materials for lithium‐ion batteries (LIBs) or sodium‐ion batteries (SIBs) because of ultrahigh specific surface area, uniformly distributed pores, and tunable structure. However, there are some disadvantages inevitably far from meeting commercial requirements, such as low conductivity, inconvenient electron transmission, and unsatisfactory circulation stability. In this review, a comprehensive summary of MOFs‐based electrode materials is presented and discussed. First, the general Li+/Na+ storage mechanism in MOFs‐based electrode materials, including conversion‐ and insertion‐type reactions, are summarized with details of active inorganic/organic ligands. Second, MOFs as anode materials for LIBs/SIBs are emphasized and improved on the electrochemical performances. Furthermore, very few research literature on MOFs‐based cathode materials is also discussed. Finally, opinions and prospects on the current challenge of MOFs‐based electrode materials are provided for future research directions.

show abstract

Mineralization and Self‐assembly of Gold Nanoparticles using Sulfur Amino Acid Modified Hierarchically Porous Metal‐Organic Frameworks

Cited by 3 publications

References 26 publications

Systematic Thiol Decoration in a Redox-Active UiO-66-(SH)₂ Metal–Organic Framework: A Case Study under Oxidative and Reductive Conditions

Systematic Thiol Decoration in a Redox-Active UiO-66-(SH)₂ Metal–Organic Framework: A Case Study under Oxidative and Reductive Conditions

Mixed-Ligand Assisted Direct Synthesis of Redox-Active UiO-66-(SH)2 Metal Organic Frameworks and Their Behavioural Pattern in Reductive and Oxidative Environments

Strategies to improve electrochemical performances of pristine metal‐organic frameworks‐based electrodes for lithium/sodium‐ion batteries

Contact Info

Product

Resources

About

Mineralization and Self‐assembly of Gold Nanoparticles using Sulfur Amino Acid Modified Hierarchically Porous Metal‐Organic Frameworks

Cited by 3 publications

References 26 publications

Systematic Thiol Decoration in a Redox-Active UiO-66-(SH)2 Metal–Organic Framework: A Case Study under Oxidative and Reductive Conditions

Systematic Thiol Decoration in a Redox-Active UiO-66-(SH)2 Metal–Organic Framework: A Case Study under Oxidative and Reductive Conditions

Mixed-Ligand Assisted Direct Synthesis of Redox-Active UiO-66-(SH)2 Metal Organic Frameworks and Their Behavioural Pattern in Reductive and Oxidative Environments

Strategies to improve electrochemical performances of pristine metal‐organic frameworks‐based electrodes for lithium/sodium‐ion batteries

Contact Info

Product

Resources

About

Systematic Thiol Decoration in a Redox-Active UiO-66-(SH)₂ Metal–Organic Framework: A Case Study under Oxidative and Reductive Conditions

Systematic Thiol Decoration in a Redox-Active UiO-66-(SH)₂ Metal–Organic Framework: A Case Study under Oxidative and Reductive Conditions