ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Weiwei Li,Chunhua Zhang,Ziman Zheng,Xiaoyu Zhang,Lin Zhang,Alexander Kuhn
Electrochemical regeneration of the reduced form of the nicotinamide adenine dinucleotide (NADH) cofactor catalyzed by immobilized [Rh(Cp*)(bpy)Cl]+ is a promising approach for the enzymatic synthesis of many valuable chemicals with NAD-dependent dehydrogenases. However, rational control of the efficiency is often limited by the irregular structure of the electrode/electrolyte interface and the accessibility of the molecular catalyst. Here, we propose an electrochemical system for NADH cofactor regeneration, based on highly ordered three- dimensional (3D) metal–organic framework (NU-1000) films. [Rh(Cp*)(bpy)Cl]+ is incorporated at the zirconium nodes of NU-1000 via solvent-assisted ligand incorporation (SALI), leading to a diffusion-controlled behavior, associated with an electron hopping mechanism. Varying the ratio of redox-active [Rh(Cp*)(bpy)Cl]+ and inactive postgrafting agents enables the elaboration of functional electrodes with tunable electrocatalytic activity for NADH regeneration. The exceptionally high faradic efficiency of 97%, associated with a very high turnover frequency (TOF) of ∼1400 h–1 for NADH regeneration, and the total turnover number (TTN) of over 20000 for the enzymatic conversion from pyruvate to l-lactate, when coupled with l-lactate dehydrogenases (LDH) as a model reaction, open up promising perspectives for employing these electrodes in various alternative bioelectrosynthesis approaches.
研究领域:
电化学
·
催化
·
生物电化学
·
材料科学
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF ENVIRONMENTAL MANAGEMENT
·
2025
·
IF 8.4
Tianrui Xu,Guanghui Wang,Xuewen Zhang,Nansheng Deng
Within the domain of animal husbandry, the misuse of antibiotics in conjunction with elevated levels of heavy metals in feed has led to the contamination of agricultural soils with these metals and antibiotics. In this study, S-scheme heterojunction photocatalyst, BiFeO 3 /Cl-g-C 3 N 4 , was synthesized for the photochemical remediation of tetracycline (TC) and Cr(Ⅵ) in co-contaminated soil, utilizing pyrolysis methods. Following an 8-h photocatalytic reaction, 89.6 % of TC and 75.7 % of Cr(Ⅵ) were effectively removed in soil with the application of BiFeO 3 /Cl-g-C 3 N 4 at a mass ratio of 5 %. The diversity of microbial communities in the remediated soil increased, with a shift in dominant genera from redox bacteria to nutrient bacteria associated with carbon and nitrogen cycling. Moreover, the incorporation of BiFeO 3 /Cl-g-C 3 N 4 in the remediation of soil contamination at depths ranging from 0 to 20 cm resulted in reductions of 40.2 % and 50 % in TC and Cr(Ⅵ) concentrations in subsoil layers, respectively, after 21-days of sunlight irradiation. In comparison to the contaminated group soil, soil from the remediation treatment demonstrated increased growth potential for cabbage and spinach. This work definitely demonstrates that this soil photochemical remediation method based on BiFeO 3 /Cl-g-C 3 N 4 is technologically feasible and has immense potential in the application of remediation of organic pollutants and heavy metals co-contaminated soils.
研究领域:
环境科学
·
光催化
·
土壤修复
·
微生物生态学
·
农业化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ELECTROCHIMICA ACTA
·
2024
·
IF 5.5
Shulin Li,Qiaoquan Lin,Han Yan,Qiaodong Li,Yu Yang,Xinlin Yan,Zhenyu Wang,Chuang Yu,Long Zhang
Cl-rich Li-argyrodites are one type of sulfide solid electrolytes (SSEs) with a high ionic conductivity and suitable mechanical properties for practical application. However, their tolerance against moisture in air and compatibility with metallic Li need further improvements. Here, we demonstrate that Nb-O dual-doping can be a good strategy for advanced Cl-rich Li-argyrodite SSEs, prepared by high energy ball milling and annealing method. Our results show that the Nb-O co-doping enhances the interface compatibility towards metallic Li and improves the moisture resistance, while maintains a fast ion transport. The Nb-O incorporation improves the Young's modulus and mitigates the side reaction of Li-argyrodite with Li. The doping-optimized sample demonstrates a high critical current density of 2.28 mA cm −2 and a long-term Li plating/stripping stability under a relatively high current density (1 mA cm −2 ) for nearly 3000 cycles. Notably, the corresponding all-solid-state lithium batteries (ASSLBs), using a Li metal electrode, can maintain a superior cycling stability for over 1000 cycles at 1 C.
研究领域:
材料科学
·
电化学
·
电池技术
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2017
·
IF 7.504
Daqin Chen,Gaoliang Fang,Xiao Chen
Tunability of emitting colors of perovskite quantum dots (PQDs) was generally realized via composition/size modulation. Due to their bandgap absorption and ionic crystal features, the mixing of multiple PQDs inevitably suffers from reabsorption and anion-exchange effects. Herein, we address these issues with high-content Mn2+-doped CsPbCl3 PQDs that can yield blue-excitable orange Mn2+ emission benefited from exciton-to-Mn energy transfer and Cl-to-Br anion exchange. Silica-coating was applied to improve air stability of PQDs, suppress the loss of Mn2+, and avoid anion-exchange between different PQDs. As a direct benefit of intense multicolor emissions from Mn2+-doped PQD@SiO2 solid phosphors, a prototype white light-emitting diode with excellent optical performance and superior light stability was constructed using green CsPbBr3@SiO2 and orange Mn: CsPb(Cl/Br)3@SiO2 composites as color converters, verifying their potential applications in the field of optoelectronics.
研究领域:
材料科学
·
光电技术
·
纳米技术
·
光子学
✓ 已验证
DOI
高影响因子
CHEMISTRY LETTERS
·
2011
·Vol. 40
·期 5
·544-545
·
IF 1.401
Xiao Yan,Li Yan,Zhang Meng,Wang Feng-Xia,Pan Ge-Bo
Copper–phthalocyanine (CuPc) nanorods were prepared on a Si substrate by a solvent evaporation method. The results of XRD indicate that the CuPc nanorods were β-phase single crystals and grown along the [010] direction. The diameters of CuPc nanorods depend on the solution concentration, and the formation of CuPc nanorods is insensitive to the solvents and substrates. This implies that the growth of CuPc nanorods is dominated by the intrinsic π–π stacking between Pc rings. In addition, a p–n junction was formed between CuPc nanorod and Si substrate.
研究领域:
材料科学
·
纳米技术
✓ 已验证
DOI
高影响因子
CHEMISTRY LETTERS
·
2015
·Vol. 44
·期 4
·471-473
·
IF 1.23
Sun Jiadi,Meng Long,Zhu Ye,Cui Yan,Liu Xiaoya
Herein, gels composed of nanoscaled particles were obtained via one-step self-assembly of poly(γ-glutamic acid) (γ-PGA) and folic acid (FA). The outcomes show that the amount of added FA plays a crucial role in the liquid–gel transition. The resulting gels revealed an increase in both storage modulus (G′) and loss modulus (G′′) with increasing amount of FA. This paper describes an effective and promising strategy to prepare gels based on self-assembly of copolymers or particles in an organic medium.
研究领域:
材料科学
·
生物化学
✓ 已验证
DOI
高影响因子
CHEMISTRY LETTERS
·
2020
·Vol. 50
·期 3
·452-455
·
IF 1.361
Han Zhao,Xia Tong,Xu Shiwei,Li Gang,Zhang Liying,Hu Nantao,Yu Jian,Li Bin,Yang Zhi,Zhang Yafei
Wearable energy storage electronics with high safety and long life have been promising candidates in recent years. Herein, all-solid-state planar micro-supercapacitors (MSCs) were demonstrated by inkjet printing of molybdenum disulfide (MoS2) electrodes. The preprinted PEDOT: PSS film on PI (Polyimide) substrate prepared with a simple and low-cost desktop inkjet printer can greatly improve the electrode conductivity. Additionally, the obtained planar MSCs show good electrochemical performance with high areal capacitance of 323 µF cm−2 and areal energy density of 0.016 µWh cm−2. More importantly, the MSCs exhibit outstanding flexibility with almost no degradation under various bending angles. The capacitance retention can still be maintained at 88.5% even after 8000 cycles, indicating good cycle stability of MSCs. The in-plane flexible MSCs hold great application potential for wearable and integrated energy storage electronics.
研究领域:
材料科学
·
能源存储技术
✓ 已验证
DOI
高影响因子
CHEMISTRY LETTERS
·
2021
·Vol. 50
·期 5
·996-998
·
IF 1.389
Wang Yunju,Huang Yuhao,Wang Hongyu
Electrolyte solutions of lithium tetrafluoroborate dissolved in sulfolane are applied in dual-ion batteries. A graphite positive electrode in this kind of solutions delivers a reversible anion storage capacity over 80 mAh g−1 at potentials over 4.5 V vs. Li/Li+. The structures of anion-graphite intercalation compounds are investigated in detail by the combination of in situ X-ray diffraction (XRD) and in situ Raman spectroscopic measurements.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
CHEMISTRY LETTERS
·
2022
·Vol. 51
·期 8
·844-847
·
IF 1.715
Sun Kaixin,Xu Fan,Liu Jingji,Zhang Yajun,Fan Yiqiang
This study proposed a method for the rapid fabrication of paper-based microfluidic devices with a stencil film, which has wide application potential in analytical chemistry. Compared with the conventional approaches, the wax transfer and wax reflow was conducted simultaneously, resulting in a shorter fabrication duration (about 15 s per device) and ultra-low fabrication cost. For the demonstration of the proposed method, a quantitative analysis of amino acid content in tea was also conducted.
研究领域:
分析化学
·
生物医学工程
✓ 已验证
DOI
高影响因子
CHEMISTRY LETTERS
·
2022
·Vol. 51
·期 4
·395-398
·
IF 1.715
Zhu Yue,Li Yue,Zhao Shipeng,Jing Ran,Zhang Heqian,Sun Daolai,Sato Satoshi
Hydrogenation of γ-valerolactone (GVL) to form 1,4-pentanediol (1,4-PDO) was performed over Co/ZrO2 catalysts with a Co metal loading of 15 wt. %. The calcination of Co/ZrO2 at high temperatures significantly promoted the catalytic activity irrespective of the decrease in the specific surface area. The 750 °C-calcined Co/ZrO2 with Co2+ species exhibited a high catalytic performance: a GVL conversion of 86.1% with a 1,4-PDO selectivity of 97.2% was achieved at 165 °C under 5 MPa H2 pressure.
研究领域:
化学工程
·
催化科学
✓ 已验证
DOI
高影响因子
CHEMISTRY LETTERS
·
2020
·Vol. 50
·期 2
·386-388
·
IF 1.361
Wan Hongri,Ju Xinzhe,He Tiantian,Shen Xiran,Yu Haoren,Lu Yunlong,Li Jiangnan,Chen Teng
A superhydrophobic bilayer surface was created with a contact angle (CA) of 157.3 ± 1° and sliding angle (SA) of 2° ± 0.5° using a simple one-step solvothermal process. The bionic micro/nano structures are similar to the flower of a carnation and common sowthistle, which plays an important role in resisting corrosion. In addition, potentiodynamic polarization shows that the superhydrophobic bilayer surface has excellent corrosion resistance. This preparation is beneficial as it is simple to fabricate, low cost, is easily prepared across large areas, and has excellent corrosion resistance, amongst other benefits. It can effectively broaden the application of magnesium alloys and extend to other conductive metal materials.
研究领域:
材料科学
·
腐蚀与防护
·
纳米技术
✓ 已验证
DOI
高影响因子
CHEMISTRY LETTERS
·
2020
·Vol. 49
·期 11
·1421-1425
·
IF 1.361
Wang Shaohua,Zhang Hanying,Li Hao,Wu Ruijie,Hua Zhongqiu,Wu Yi,Tian Xuemin
WO3 nanosheets were synthesized by an acidification method and Cr was loaded on the surface of nanosheets via an impregnation procedure. The morphologies of pristine and Cr-loaded WO3 nanosheets were analyzed. Gas sensors based on pristine and Cr-loaded WO3 nanosheets were fabricated by a screen-printing technique and their sensing properties were also investigated. It was found that the catalytic modification of Cr can significantly improve the sensing performance of WO3 nanosheets to ammonia. In addition, the sensitization mechanism of Cr-loaded WO3 could be caused by the electrical sensitization effect and more stable product in the sensing processes to ammonia.
研究领域:
材料科学
·
化学传感器
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）