ChemistrySelect
·
2026
·Vol. 11
·期 23
·e73598
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IF 2.3
Lijian Wang,Cong Yu,Junjie Bian,Xinbo Wang
The catalytic transfer hydrogenation (CTH) of furfural into furfuryl alcohol offers a promising route for the valorization of lignocellulosic biomass using liquid hydrogen donors instead of high-pressure H 2 . In this work, a defect-engineered MOF-801 catalyst with abundant Lewis acid sites was synthesized through a formic acid-regulated hydrothermal approach. Competitive coordination between formic acid and fumaric acid favors the nucleation and growth of MOF-801, and enhances the Lewis acidity of the catalyst. Characterization by FT-IR, XRD, SEM, and pyridine-IR confirmed the successful formation of MOF-801 with dominant Lewis acid centers. Using isopropanol as the hydrogen donor, the optimized reaction conditions (130°C, 2 h, 1.0 MPa N 2 ) achieved 99.5% furfural conversion and 94.4% furfuryl alcohol yield. Kinetic analysis demonstrated a first-order reaction with an apparent activation energy of 41.3 kJ·mol − 1 . The catalyst showed excellent recyclability and retained its crystallinity after five consecutive cycles. This study provides a simple and efficient method for constructing Lewis acidic MOFs with coordination unsaturated metal sites for biomass-derived CTH reactions, supporting an upgrading and transformation of platform molecules under hydrogen-free conditions. Graphical A defect-engineered MOF-801 catalyst with abundant Lewis acid sites is synthesized via formic acid modulation. The unsaturated Zr 4 + centers effectively activate both furfural and isopropanol, enabling efficient catalytic transfer hydrogenation to furfuryl alcohol under mild, hydrogen-free conditions with excellent recyclability.
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Biomaterials Advances
·
2026
·
IF 6.7
Yuhang Zhang,Jingxu Wang,Weiming Yu,Yuting Zhang,Jiaxin Jiang,Yu Chen,Zhe Ji
BA@Ce-MOF exhibits SOD/CAT-like enzyme activities and antioxidant effects. • In situ formation of hydrogel via thiol-ene photo-click chemistry reaction. • The ROS-responsive oxidation of thioether bonds in the hydrogel network accelerates drug release. • Promotes osteogenesis, angiogenesis, and M2 macrophage polarization in vivo. The hyperglycemic and reactive oxygen species (ROS)-rich microenvironment in diabetes readily incites inflammation, and the persistent inflammation exacerbates bone resorption, severely hindering the repair of diabetic alveolar bone defects. The alendronate used in clinical practice can inhibit bone resorption but lacks osteoinductive activity and cannot modulate the inflammatory milieu; traditional Chinese medicine monomers possess anti-inflammatory potential but are limited by low bioavailability. Herein, we developed a multifunctional nanocomposite hydrogel via a hierarchical integration strategy using carbon dots and Ce-MOF nanozymes to promote diabetic alveolar bone repair. In this system, the Ce-MOF, exhibiting superoxide dismutase (SOD)-and catalase (CAT)-like activities, scavenges ROS and enables the sustained release of carbon dots composed of alendronate and baicalin, achieving synergistic antioxidant and antibacterial effects. The hydrogel, formed from vinyl-group-grafted chitosan and thiolated sodium alginate via rapid in situ photoclick chemistry, adapts to irregular defect shapes; the thioether bonds formed in its crosslinked structure enable ROS-triggered acceleration of BA@Ce-MOF nanoparticle release. In vitro, the BA@Ce@CSSA hydrogel demonstrated excellent biocompatibility. Its SOD/CAT activities and the antioxidant function of the monomer synergistically eliminated ROS and induced macrophage M2 polarization for immunomodulation. Concurrently, it enhanced osteogenic differentiation by upregulating RUNX2 and OPN expression. In vivo, Micro-CT and histomorphometric analyses confirmed that BA@Ce@CSSA significantly accelerated and improved the quality of bone regeneration. In summary, this study presents a hierarchically designed therapeutic strategy that effectively promotes bone regeneration by integrating antioxidant, anti-inflammatory, pro-angiogenic, and pro-osteogenic functions within a ROS-responsive hydrogel system, offering a promising approach for treating alveolar bone defects under diabetic conditions.
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JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2026
·
IF 4.6
Lan Zhao,Chunhong Li,Nengcong Pan,Yuhan Lei,Muhammad Aizaz Ud Din,Nanpu Cheng
MOF-derived Fe-doped Ni 9 S 8 nanoparticles are uniformly anchored on N-rGO. • The synergistic effect at the heterointerface enhances electron transfer and active site exposure. • Fe 0.1 -Ni 9 S 8 /N-rGO achieves an overpotential of 255 mV at 50 mA cm −2 . • Fe doping shifts the d-band center down, weakening *O adsorption and lowering the RDS barrier. Developing effective, low-cost oxygen-evolution catalysts is essential for sustainable energy technologies. Here, we synthesized an N-doped reduced graphene oxide-supported, Fe-doped Ni 9 S 8 catalyst (Fe 0.1 -Ni 9 S 8 /N-rGO) by MOF-derived pyrolysis followed by sulfidation. To separate the effects of Fe-induced electronic modulation from N-rGO–assisted interfacial engineering, we prepared a series of control samples: Ni 9 S 8 , Ni 9 S 8 /N-rGO, Fe 0.1 -Ni 9 S 8 , and Fe 0.1 -Ni 9 S 8 /N-rGO. The optimized Fe 0.1 -Ni 9 S 8 /N-rGO exhibited efficient OER electrocatalysis, delivering 50 mA cm −2 at an overpotential of 255 mV with a Tafel slope of 54.58 mV dec −1 . Synergistic Fe doping and the Ni 9 S 8 /N-rGO heterojunction enhanced conductivity and increased active-site exposure, yielding higher activity. Electronic-structure analysis showed that Fe doping shifts the d-band center and tunes the interaction strength with key OER intermediates, which lowered the energy required for oxygen evolution. This work presents a logical strategy for designing high-performance, nonprecious-metal OER catalysts.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2026
·
IF 5.4
Qianwei Zhang,Jiawei Kou,Jiahui Shi,Yu Liu,Yanrui Hao,Mingyue Wang,Hao Guo,Wu Yang
Pre-anchoring and alkali-regulated strategy constructs NiCo-LDH@NiFe 2 O 4 QDs heterostructure. • NiFe 2 O 4 quantum dots boost conductivity and structural stability of LDH. • Alkali source tuning modulates nanosheet morphology and ion diffusion. • The NiCo-LDH@QDs-K electrode delivers 2195.55 F·g -1 at 1 A·g -1 . • Asymmetric supercapacitor achieves 80.98 Wh·kg -1 , powers timer for 28 min. Layered double hydroxides (LDHs) derived from metal-organic frameworks (MOFs) possess high theoretical capacitance. However, their inherent low conductivity and structural instability during cycling limit practical applications. In this study, we propose an innovative pre-anchoring and directed conversion synthesis strategy for the rational synthesis of a tightly integrated NiCo-LDH with quantum dots (QDs) composite. Highly conductive NiFe 2 O 4 QDs were uniformly pre-anchored onto the surface of NiCo-BTC, followed by precise regulation of the alkalization process to in situ convert the precursor into LDH. Owing to the spatial confinement effect of the MOF precursor, aggregation of the quantum dots is effectively suppressed. Meanwhile, the in situ conversion process establishes strong interfacial coupling and efficient ion/electron transport pathways between the two components, thereby synergistically improving electrical conductivity, charge-transfer kinetics, and structural robustness.Benefiting from this unique structural design, the resulting composite exhibited outstanding electrochemical performance, achieving a specific capacitance of 987.99 C·g -1 at a current density of 1 A·g -1 . Furthermore, an asymmetric supercapacitor assembled with this composite as the positive electrode achieved an energy density of 80.98 Wh·kg -1 at a power density of 784.94 W·kg -1 and is capable of powering commercial electronic devices. This study provides an effective strategy for developing high-performance MOF-derived electrode materials through interfacial structural design. Download: Download high-res image (226KB) Download: Download full-size image Through pre-anchoring and targeted conversion strategies, NiFe 2 O 4 quantum dots were uniformly anchored onto the NiCo-BTC surface and in situ converted into LDH, successfully constructing the NiCo-LDH@NiFe 2 O 4 QDs composite material. The asymmetric supercapacitors assembled from this material exhibited high energy density.
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JOURNAL OF ELECTRONIC MATERIALS
·
2026
·
IF 2.8
Li Wenting,Wang Xinting,Liu Sanmei
Co 3 O 4 is a promising electro-oxidation catalyst, which is applicable to the oxygen evolution reaction (OER) and glucose oxidation reaction (GOR). However, its insufficient active sites and poor conductivity severely restrict its practical application. Herein, a Co 3 O 4 /CN electrocatalyst derived from zeolitic imidazolate framework (ZIF)-67/CN was successfully synthesized via a solvent-free strategy for efficient OER and GOR. In electrocatalytic OER, Co 3 O 4 /CN demonstrated superior performance on a glassy carbon (GC) electrode, achieving an overpotential ( η ) of 306 mV at a current density ( j ) of 10 mA cm −2 , which outperformed Co 3 O 4 -ZIF (Co 3 O 4 /CN derived from ZIF-67). Furthermore, the Co 3 O 4 /CN electrocatalyst also exhibited good GOR ability, with high sensitivity of 1021.9 μA mM −1 cm −2 , a low detection limit of 1.8 μM ( S / N = 3), a broad linear range from 2 μM to 2.1 mM, excellent repeatability and reproducibility (relative standard deviation [RSD] < 6%), and long-term stability up to 3 weeks. The enhanced activity may be ascribed to the rich active sites, porous structure, and improved electrical conductivity of Co 3 O 4 /CN. This work provides a feasible strategy for enhancing electrocatalytic activity toward OER and GOR using metal–organic framework (MOF)/CN-based materials.
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INORGANIC CHEMISTRY
·
2025
·
IF 4.7
Hui Hu,Honghui Xie,Sanqi Liang,Mengting Yu,Fanglin Liu,Shengjun Deng,Shuhua Wang,Weiming Xiao,Chao Chen
The reports on MOFs supported nonprecious metal nanocatalysts (NPM/MOFs) remain limited, primarily due to the conflict between the harsh conditions for the preparation of nonprecious metal nanoparticles and the poor stability of MOFs; the fabrication of NPM/MOFs has long been a challenge. Herein, we demonstrate a facile, versatile, and sustainable method to fabricate NPM/MOFs by directly reacting commercial metal dusts with the ligands through simple ball milling. In this approach, the metal dusts were sacrificed in situ to form the corresponding MOFs and etched into smaller nanoparticles at the same time. The developed approach entirely circumvents the harsh conditions typically required for the preparation of nonprecious metal nanoparticles, while preserving the porous structures of the MOFs. By this facile approach, several NPM/MOFs with intact pore structures were prepared. Moreover, this approach consumes trace amounts of solvent, conforming to the concept of sustainable synthesis. In addition, the synthesized Co/ZIF-67 nanocatalyst was tested in the hydrogenation of unsaturated aldehydes; it exhibits an exceptionally catalytic performance that is comparable to many noble metal nanocatalysts.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Mohamedazeem M. Mohideen,P. Chinnappan Santhosh,Adiyodi Veettil Radhamani,Ce Wang,Ping Hu,Balachandran Subramanian,Seeram Ramakrishna,Yong Liu
Designing efficient, sustainable, and cost–effective electrocatalysts for oxygen reduction (ORR) and oxygen evolution (OER) reactions is essential for advancing fuel cells and metal–air batteries as clean energy technologies. Despite significant progress in developing non–precious electrocatalysts, the nature of their active sites and interface chemistry remains unclear due to the complexity of the reaction mechanisms. To address these challenges, this study presents a Co–MOF/MXene hybrid electrocatalyst engineered to optimize synergy between dual–metal active sites, achieving high bifunctional activity for both ORR and OER. Notably, our comparative analysis provides clear experimental evidence that sulfur doping disrupts this balance in the reported catalyst. Structural analysis reveals that sulfur substitutes for carbon atoms within the framework, altering the local coordination environment and reducing catalytic performance, contrary to the common assumption that heteroatom doping is universally beneficial. The sulfur–free Co–MOF/MX–1 catalyst exhibits a high ORR onset/half–wave potential of 0.90/0.81 V (vs. RHE), low hydrogen peroxide yield (2.95 %), 90 % current retention, and an ultralow bifunctional gap (ΔE ORR–OER = 0.78 V). We attribute this superior performance to the interplay of Co–N₃–Ti₃C and Ti N active sites, which synergistically optimize oxygen adsorption and electron transfer, aligning with the metaphorical Janus principle of functional balance. This work challenges prevailing views on heteroatom doping and establishes new design principles for non–precious bifunctional electrocatalysts in fuel cells and metal–batteries.
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2026
·
IF 9.2
Qi Qi,Jiawen Liu,Hang Xu,Wei Wen,Zhonghua Li
Constructing heterostructures serves as an effective strategy to address the low separation efficiency of photogenerated carriers in covalent organic frameworks (COFs). Herein, we leverage the structural features of TpBpy-COF bearing carbonyl and bipyridine moieties to fabricate covalently linked Zr-MOF-NH 2 @COF and coordination-linked Zr-MOF@COF via reactions with UiO-66-NH 2 and UiO-66, respectively. The findings reveal that both Zr-MOF-NH 2 @COF and Zr-MOF@COF exhibit excellent photocatalytic hydrogen evolution activity compared with the physically mixed Zr-MOF-NH 2 &COF and Zr-MOF&COF composites, owing to the formation of tightly interfaces. In particular, Zr-MOF-NH 2 @COF shows obviously improved hydrogen production performance. The optimal sample Zr-MOF–NH 2 –10@COF achieves an outstanding hydrogen production rate of 37.67 mmol g −1 h −1 , which is 1.3 times that of Zr-MOF@COF. The Zr-MOF-NH 2 @COF S-scheme heterojunction facilitates charge separation and boosts photocatalytic H 2 evolution. This work compares covalently and coordination-linked MOF@COF heterostructures to guide interfacial optimization of related photocatalysts.
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ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Mengyi Huang,Zhenxin Liang,Jinling Huang,Yuehong Wen,Qi-Long Zhu,Xintao Wu
Metal–organic frameworks (MOFs) have been extensively studied in host–guest chemistry by means of ultrahigh porosities, tunable channels, and component diversities. As the host matrix, MOFs exhibit immense potential in the preparation of single-phase white light-emitting (SPWLE) materials. Nonetheless, it is a great challenge that the size of the introduced guest molecules is limited by MOF pores, which affects the WLE optimization. In this work, two-dimensional (2D) MOFs are first utilized as the host matrices to simultaneously encapsulate red–green–blue fluorescent dyes for SPWLE. Various dyes@2D MOF composites with high-quality WLE performances and ultrathin nanosheet morphologies are directly assembled from 2D MOF precursors and dyes in high yields. Owing to the flexible interlamellar space of 2D MOFs, different types and sizes of guests can be easily introduced, which greatly expands the range of available MOF hosts and guests, making the WLE much more tunable. The strategy of employing 2D MOFs as the host matrices to introduce multicomponent dyes for SPWLE nanosheets resolves the restriction of MOF pores on the guest molecule size and opens a new avenue to rationally design and prepare SPWLE nanosheets that are highly solution-processable.
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ACS Applied Energy Materials
·
2023
·
IF 6.4
Hua Yang,Yi Duan,Huiling Gu,Lihua Liu,Hongtao Guan,Chengjun Dong,Gang Chen
Metal–organic frameworks (MOFs) with porous structures are beneficial for electrochemical energy storage. Herein, the in-situ growth of the S-doped Ni-MOF nanosheet (S-NMN) on the surfaces of nickel foams was prepared via a facile solvothermal process. Owing to the rich active sites, small transport barrier, and excellent mechanical stability, the fabricated S-NMN-2 electrode displays a high specific capacity (1952 mF cm–2 at 1 mA cm–2), satisfactory rate performance, and remarkable cyclic stability. For practical application, the assembled S-NMN-2//AC device achieves a high energy density of 0.189 mWh cm–2 at the power density of 1.600 mW cm–2 with prominent cycling stability (93.27% capacity retention after 4000 cycles). The facile strategy of etching nickel foam demonstrates a new idea for developing high-performance supercapacitor materials.
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CARBON
·
2023
·
IF 10.9
Chunxia Yan,Jie Wei,Jie Guan,Ziqiang Shao,Shaoyi Lv
Flexible electrode materials have achieved great breakthroughs during the past decades. However, many challenges remain such as how to overcome the frangibility and enhance the flexibility, and advance the high specific capacitance. We fabricated a free-standing, foldable, and conductive cellulose acetate (CA)-based metal-organic framework (MOF) composites by facile electrospinning carbonization and co-precipitation method. The sustainable cellulose derivative provides a flexible matrix, which contains hierarchically porous and ample redox activities. The intermolecular interaction is enhanced for coordination between exposed hydroxyl on deacetylated CA and metal ions, thus reduce the fracture of the CA nanofibers . Importantly, multi-layer heterojunction structure and honeycomb-like MOF nanosheets with reversibly flexible deformation create interlamellar pathways to improve the bending resistance of nanofibers. The controlled Co/Zn ion concentration could effectively modulate spatial distribution of Co/Zn MOF to thus generate different conductive channels. The asymmetric flexible supercapacitor based on Ni/Co LDH@ Co/Zn NC@CDCP-N electrode material gives high specific capacitance (175.2 F g −1 at 1 A g −1 ) and outstanding energy density (54.8 W h kg −1 ) at high power density (985.5W kg −1 ). Our work paves a way to facile fabrication of flexible and free-standing electrode materials for practical flexible energy storage, such as artificial electronic skin and soft wearable electronics .
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ACS Applied Nano Materials
·
2023
·
IF 5.9
Gang Chen,Yun Guo,Xuechun Yang,Guohao Li,Zhanpeng Yang,Jingyu Huang,Lingli Cheng,Zheng Jiao
Herein, in order to efficiently enhance the sensing properties based on zinc oxide (ZnO) sensors toward n-butanol, a series of MOF ZIF-8 (zeolite imidazolate framework-8)-derived Tourmaline@ZnO core–shell nanostructures were prepared with a facile solution mixing method and an after-treatment calcination process, and the gas sensing performances were systematically characterized. The results exhibited that the paucity of tourmaline introduction could significantly improve the gas sensitivity for n-butanol, simultaneously increasing the gas selectivity and reducing the response–recovery times. In particular, the sensor based on 5 wt % Tourmaline@ZnO nanocomposites achieved a superior response value, reaching up to 294.4 for 100 ppm n-butanol at 320 °C. Through the integrated testing and analyses of BET, XPS, PL, and UV, it has been confirmed that the introduction of tourmaline can not only enlarge the specific surface area and enrich the surface defects of the ZnO matrix, but its unique spontaneous polarization electric field can also reduce the recombination rate of electron–hole pair efficiency, promoting the efficiency of electron transport and accelerating the gas sensing process ultimately. The enhancement mechanism of the nanostructured Tourmaline@ZnO core–shell gas sensing material was also elucidated from the perspective of the energy band theory at length.
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