DESALINATION
·
2021
·
IF 9.501
Xu Ma,Xinyi Wan,Zhou Fang,Zhuoyi Li,Xiaobin Wang,Yue Hu,Mengyang Dong,Zhizhen Ye,Xinsheng Peng
Solar-driven interfacial desalination (SDID) has emerged as an efficient and eco-friendly technology to produce clean water. However, salt deposition on photothermal material severely restricts the operation stability and service life. Herein, this issue was addressed by regulating the oriented seawater transportation through flexible Cu(TCNQ) metal-organic frameworks (MOFs)-based nanorod arrays (MAS) and isolating the salt crystallization from the evaporating surface. The SDID device with the novel architecture is rationally designed, which not only shows good anti-salt deposition ability and superior clean water production performance, but also achieves simultaneous salt extraction. Under 1 sun irradiation, the MAS in SDID device displays an impressive water evaporation rate of 1.78 kg m −2 h −1 (projected area) and a high salt extraction rate of 47.0 g m −2 h −1 . Even at night, the MAS can also extract salt at the rate of 12.6 g m −2 h −1 . This work provides a new idea to design highly efficient multifunctional solar desalination device for seawater resource comprehensive utilization and zero-liquid discharge.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2025
·
IF 5.6
Xiaomei Ning,Yifan Wei,Zhiqiang Tang,Silin He,Xiaoting Chen,Kaitong Yan,Liang Zhan
The catalytic efficiency of the formic acid electro-oxidation reaction (FAOR) and glycerol electro-oxidation reaction (GOR) using a Pt catalyst was substantially enhanced by adding 7,7,8,8-tetracyanoquinodimethane (TCNQ) dissolved in acetonitrile solution (ACN) into the reaction solution. The dynamic structure of TCNQ(ACN) and blank ACN modified Pt catalysts, along with their impacts on the performances in FAOR and GOR were analyzed. A strong relationship was established between the performance of FAOR and GOR and the modifier concentration in the reaction solution. ACN exerted a geometric blocking effect on Pt, thereby considerably improving the direct dehydrogenation process of FAOR. Based on ACN, the performance of the dehydrogenation process of FAOR and GOR was further boosted for the surface electron-rich Pt catalyst due to modification with additional TCNQ modifier. Additionally, the resistance to CO poisoning of modified Pt catalyst was notably improved, and the onset potential decreased from 0.656 V of the unmodified Pt to 0.583 V for a specific amount of TCNQ(ACN) modified Pt catalyst. This study offers a novel perspective to optimize the catalytic performance of the catalyst.
研究领域:
化学
·
催化科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF SOLID STATE CHEMISTRY
·
2023
·
IF 3.3
Qijiu Deng,Zhiyun Zhao,Lei Mao,Yiming Zou,Bo Gou,Yinling Yan,Weihua Zhang,Rong Yang,Yunhua Xu
The seriously dissolution of the intermediate into the organic electrolyte has been the key limitation for metal-organic compounds in K-ion batteries. Here, we initially inhibit the dissolution of intermediate products (TCNQ 0 ) with a highly conducting polymer (polypyrrole, PPy) coated on the CuTCNQ. And the adsorption energy between the conductive polymer PPy and the intermediate product TCNQ can be significantly enhanced (−0.55 eV) as compared to the TCNQ molecules (0.21 eV), which can restrain the free intermediate product dissolved in the organic electrolyte, resulting in an enhanced cyclic stability as well as rate performance. Additionally, the highly conductive PPy exhibits flexible structure, which can weaken the interface effect between the electrode and the coating layer. This work provides further understanding on surface coating on metal-organic compounds and has significant basic scientific sense for the in-depth research of K-ion batteries.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 13.2
Ting Xiang,Kang Chen,Siqi Ni,Xijun Wang,Changlun Chen
The electrocatalytic oxidation of 5-hydroxymethylfurfural (HMF) offers an eco-friendly route to produce 2,5-furandicarboxylic acid (FDCA). Coupling this anodic reaction with the hydrogen evolution reaction provides a sustainable alternative to oxygen evolution reaction in water electrolysis, enhancing energy efficiency while generating green hydrogen. However, conventional nickel-based catalysts suffer from weak substrate adsorption and limited active-site utilization. Here, we introduce a ligand-engineered charge-transfer complex, Ni(TCNQ) 2 (H 2 O) 2 , in which π-conjugated TCNQ ligands enable strong π–π stacking with the furan ring of HMF to enrich substrate adsorption, while the electron-accepting nature of TCNQ mediates metal-ligand charge transfer to regulate the Ni 2+ /Ni 3+ redox couple. This dual function significantly accelerates reaction kinetics and stabilizes intermediates, enabling Ni(TCNQ) 2 (H 2 O) 2 to deliver 100 mA·cm −2 at 1.38 V and nearly 100 % FDCA yield. Mechanistic insights from X-ray photoelectron spectroscopy, operando Raman, and density functional theory (DFT) confirm that ligand-driven adsorption and electron interactions accelerate the catalytic process. DFT free-energy profiles further demonstrate that Ni(TCNQ) 2 (H 2 O) 2 smooths the reaction energy landscape, lowering the thermodynamic barriers compared with Ni(OH)₂. This work underscores the pivotal role of ligand engineering in tuning catalytic interfaces for efficient biomass electrooxidation and green hydrogen co-production in integrated renewable energy systems.
✓ 已验证
DOI
高影响因子
Advanced Materials Technologies
·
2026
·
IF 6
Jiaqi Duan,Weiguo Ma,Jian-Yong Hu
Organic near-infrared (NIR) photodetectors have attracted considerable interest as candidates for flexible, lightweight, and low-cost optoelectronic technologies. However, achieving efficient NIR absorption and high photodetection sensitivity simultaneously remains a significant challenge for most organic semiconductor systems. Here, a high-performance hybrid organic phototransistor is developed by combining a PBTTT-C 14 /F4-TCNQ donor–acceptor charge-transfer complex with monolayer graphene. Strong intermolecular charge-transfer interactions generate low-energy electronic transitions, resulting in broadband optical absorption spanning 400–1300 nm. Meanwhile, the incorporation of graphene provides an efficient transport pathway for photogenerated carriers and promotes charge separation, thereby enhancing photoconductive gain. As a result, the hybrid device exhibits excellent NIR photodetection performance under 800 nm illumination, delivering a responsivity of 1.67 × 10 5 A/W, a detectivity of 3.26 × 10 12 Jones, and an external quantum efficiency of 2.92% × 10 7 %. Notably, a measurable photoresponse is maintained even under extremely weak irradiation, demonstrating outstanding sensitivity toward low-intensity optical signals. In addition, the device shows stable switching behavior with millisecond-scale response characteristics. Integration into a phototransistor array further enables spatially resolved NIR imaging. These results highlight the effectiveness of integrating charge-transfer complexes with two-dimensional conductive materials and provide a viable strategy for next-generation high-gain organic infrared sensing and imaging applications.
✓ 已验证
产品关联
DOI
高影响因子
GREEN CHEMISTRY
·
2026
·
IF 9.2
Ting Xiang,Njud S. Alharbi,Xijun Wang,Changlun Chen
The electrocatalytic oxidation of 5-hydroxymethylfurfural (HMF) coupled with hydrogen evolution offers a sustainable approach for producing value-added chemicals and green hydrogen. Achieving both high current densities and long-term operational stability remains a significant challenge. A metal–organic framework (MOF)-structured Co–Ni(TCNQ)2·2H2O nanorod-array catalyst demonstrates exceptional activity and durability for HMF electrooxidation. This bimetallic framework achieves high current density up to 1000 mA cm−2, requiring only 1.72 V in 1.0 M KOH with 200 mM HMF, which significantly outperforms Ni(TCNQ)2·2H2O and highlights the strong promoting effect of cobalt incorporation. Nearly complete HMF conversion and high selectivity for 2,5-furandicarboxylic acid (FDCA) are observed, along with excellent recyclability under concentrated substrate conditions. Operando and ex situ analyses indicate that cobalt doping mitigates over-oxidation and the associated irreversible structural transformation of the nickel sites stabilizes a dynamic Ni2+/Ni3+ redox cycle, and enhances charge delocalization through the TCNQ ligand. These effects collectively prevent over-oxidation and ensure sustained catalytic turnover. Density functional theory calculations confirm that cobalt strengthens HMF adsorption and facilitates FDCA desorption, thereby coupling efficient substrate activation with effective product release. This dual thermodynamic modulation explains the reduced onset potential and increased current density. Thus, Co–Ni(TCNQ)2·2H2O serves as a robust, selective, and scalable electrocatalyst, linking mechanistic understanding to industrial-scale biomass upgrading and simultaneous hydrogen generation.
✓ 已验证
DOI
高影响因子
CHEMISTRY-A EUROPEAN JOURNAL
·
2018
·Vol. 24
·期 9
·2075-2079
·
IF 5.16
Yicheng Wei,Xiang Ren,Hongmin Ma,Xu Sun,Yong Zhang,Xuan Kuang,Tao Yan,Dan Wu,Qin Wei
Graphical Blowing bubbles : A sawtooth-like Co(TCNQ) 2 MOF array was fabricated by means of a solution immersion method at room temperature. This Co(TCNQ) 2 /Co shows superior oxygen-evolving activity, and only needs an overpotential as low as 310 mV to drive a geometrical catalytic current density of 15 mA cm −2 in 1.0 m KOH. Notably, it also demonstrates good long-term electrochemical durability with a high turnover frequency. Energy conversion and storage systems such as water splitting devices and metal-air batteries need excellent and energy-efficiency oxygen evolution reaction (OER) catalysts. This work reports the in situ development of sawtooth-like Co(TCNQ) 2 (TCNQ=tetracyanoquinodimethane) metal–organic framework array on Co foil (Co(TCNQ) 2 /Co) by means of a solution immersion method at room temperature. As an oxygen-evolving catalyst, the resulting Co(TCNQ) 2 /Co demonstrates superior OER activity with overpotential of 310 mV to drive a geometrical catalytic current density of 15 mA cm −2 in 1.0 M KOH. Notably, it also shows good long-term electrochemical durability with its activity being retained for at least 20 h and achieves a high turnover frequency of 0.66 mol O 2 s −1 at overpotential of 380 mV.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Matter
·
2025
·
IF 17.5
Wanjie Bai,Haotian Li,Huijie Liu,Xianheng Wang,Zhipeng Gu,Ye Yang,Yiwen Li
Black color is the most typical feature of natural and synthetic melanins, which results from the complex packing and chemical disorder of the molecular structure within melanins. From nature and beyond nature, breaking through the black color boundary, expanding the scope of inherent functions, and establishing clearer structure-function relationship of melanin is necessary but hard due to the inherent chaos structure caused by random covalent coupling and supramolecular assembly. Herein, starting from melanin-inspired monomers, we chose and assembled typical organic acceptor molecules (TCNB/TCNQ) with melanin-inspired donor molecules to prepare a series of colorful melanin-inspired pigments through the co-crystallization strategy. The resulting colorful melanin-inspired pigments exhibited multiple colors and different rod-like morphologies compared with many melanin-like polymers. Particularly, green DHI/TCNQ powder presented excellent photothermal efficiency (∼69.8%) for antibacterial application. This work would provide new structure-function tailoring strategy toward the design of melanin-like polymers with highly ordered structures and desirable properties.
研究领域:
材料科学
·
有机化学
·
光热治疗
·
高分子化学
·
超分子化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Zhenyu Wang,Bo Li,Peng Sun,Binhui Mao,Xinqiang Mao,Jingjie Dai,Zonghua Wang
Efficient generation, transport, and utilization of plasmon-induced hot carriers remain fundamental challenges in the development of photoresponsive electrocatalysts. Herein, a hierarchical Au nanoparticle (NP)-decorated NiFe layered double hydroxide/Ni(TCNQ) 2 heterostructure supported on copper foam (Au NPs–NiFe LDH–Ni(TCNQ) 2 /CF) with a rationally designed conductive Ni(TCNQ) 2 interlayer is engineered, and the Au NPs size is systematically optimized to maximize plasmon-enhanced electrocatalytic performance. The conductive Ni(TCNQ) 2 nanorods serve as both electron-transport pathways and structural scaffolds enabling the growth of ultrathin NiFe LDH nanosheets, while plasmonic Au NPs enable light-driven electronic modulation. The integration of these components establishes efficient pathways for charge generation, separation, and transfer, thereby improving the utilization efficiency of plasmon-generated carriers. Notably, a systematic size-dependent investigation identifies 5-nm Au NPs as the optimal plasmonic configuration, exhibiting the strongest localized surface plasmon resonance enhancement. Under light irradiation, the optimized catalyst achieves an additional overpotential reduction of 22 mV at 100 mA cm −2 and a decreased Tafel slope of 60.47 mV dec −1 , highlighting the critical role of NP dimensions in regulating hot-carrier generation and interfacial charge-transfer efficiency. Importantly, the synergistic interaction between plasmon-induced electronic excitation and conductive interlayer engineering effectively promotes charge transport across the heterointerface and enhances the overall electrocatalytic process. This study provides new insights into the rational design of plasmon-enhanced electrocatalysts and offers a versatile strategy for integrating hot-carrier modulation with conductive interface engineering in solar-driven energy conversion systems.
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产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2016
·
IF 2.76
Zhang Junjie,Jing Wang,Shuping Xu,Weiqing Xu
Metal-organic charge transfer complexes, MTCNQ (M = Ag or Cu; while, TCNQ = 7,7,8, 8-tetracyanoquinodimethane), have received great attentions for their electrical and optical properties. To prepare AgTCNQ, poly(ethylene glycol)-blockpoly(propylene glycol)-block-poly(ethylene glycol) (P123) has been applied as a soft template for the growth of AgTCNQ. This triblock copolymer is the structure directing agent and necessary to the formation of the AgTCNQ nanostructure. By tuning the concentration of P123, we achieved two novel AgTCNQ nanocrystals (nanospindle and nanocones) for the first time via a one-pot reaction in aqueous solution. In addition, sodium citrate acts as a reductant and ensures the proceeding of the reaction between Ag + and TCNQ particles. A ligand-limited facet growth mechanism has been proposed to explain the shape regulation of AgTCNQ through the facet block effect by P123. This soft template method also enlightens us in the synthesis of other organic crystals with different shapes.
研究领域:
材料科学
·
化学合成
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED MATERIALS
·
2018
·Vol. 30
·期 9
·1705366
·
IF 21.95
Dan Wu,Yicheng Wei,Xiang Ren,Xuqiang Ji,Yiwei Liu,Xiaodong Guo,Zhiang Liu,Abdullah M. Asiri,Qin Wei,Xuping Sun
It is highly desired but still remains challenging to design and develop a Co-based nanoparticle-encapsulated conductive nanoarray at room temperature for high-performance water oxidation electrocatalysis. Here, it is reported that room-temperature anodization of a Co(TCNQ) 2 (TCNQ = tetracyanoquinodimethane) nanowire array on copper foam at alkaline pH leads to in situ electrochemcial oxidation of TCNQ − into water-insoluable TCNQ nanoarray embedding Co(OH) 2 nanoparticles. Such Co(OH) 2 -TCNQ/CF shows superior catalytic activity for water oxidation and demands only a low overpotential of 276 mV to drive a geometrical current density of 25 mA cm −2 in 1.0 m KOH. Notably, it also demonstrates strong long-term electrochemical durability with its activity being retrained for at least 25 h, a high turnover frequency of 0.97 s −1 at an overpotential of 450 mV and 100% Faradic efficiency. This study provides an exciting new method for the rational design and development of a conductive TCNQ-based nanoarray as an interesting 3D material for advanced electrochemical applications.
研究领域:
电化学
·
材料科学
·
催化
·
纳米技术
·
能量转换
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）