INORGANIC CHEMISTRY COMMUNICATIONS
·
2025
·
IF 5.4
Yilei Sun,Yao Liu,Zeda Meng,Won-Chun Oh
Different concentrations of N-doped modified Zn-based metal-organic frameworks (xN-Zn-MOFs) were prepared by a solvothermal method, as well as the successful synthesis of 0N-Zn-MOFs as well as 1N-Zn-MOFs and 2N-Zn-MOFs catalytic materials. The experimental results suggested that 2N-Zn-MOF displayed the maximum specific surface area and pore size among the three materials. The catalytic material stability and CO 2 reduction reaction (CO 2 RR) activity were investigated by linear sweep voltammetry (LSV), cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and chronocurrent tests (I-T). The corresponding Faraday efficiency (FE) was calculated in conjunction with product analysis. Among the three catalytic materials, 2N-Zn-MOF had the optimal catalytic reduction performance with a maximum current density of 20 mA-cm −2 ; Its charge transfer resistance was 7.84 Ω. It was stably tested at a potential of −0.45 V (vs. RHE) for 12 h in the IT test, and its reduction products were methane (CH 4 ) and carbon monoxide (CO), with a maximum total Faraday efficiency of 30.64 %.
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产品关联
DOI
高影响因子
RARE METALS
·
2024
·
IF 9.6
Li Wan-Ying,Dai Yi-Long,Cai Wen-Hao,Lin Si-Han,Guo Lin,Zhang De-Chuang,Li Yuncang,Wen Cuie
Zn-Li alloys are considered promising candidate materials for biodegradable orthopedic implant applications due to their high mechanical performance and good biocompatibility. However, the presence of a large number of second-phase particles in this class of Zn alloys can lead to severe localized degradation due to micro-galvanic corrosion, which is detrimental to the mechanical integrity of the alloys during tissue healing in the human body. In this study, we report ultrahigh strength, uniform corrosion, good cytocompatibility, and effective antibacterial ability in Zn- x Li ( x = 0.3, 0.5, 0.7; wt%) alloys achieved through supersaturated solid solution treatment (SSST) at 375 °C under ultrahigh pressure of 3 GPa. A high concentration of β-LiZn 4 phases coexisted with the -Zn matrix in the as-cast Zn- x Li alloys, whereas almost all the Li dissolved into the -Zn matrix of SSST counterparts. The yield strength was 437 MPa for SSST Zn-0.3Li, 592 MPa for SSST Zn-0.5Li, and 686 MPa for SSST Zn-0.7Li. The SSST Zn-Li alloys showed uniform degradation with remarkably reduced degradation rates compared to their as-cast counterparts. The 25% concentration extracts of the Zn- x Li alloys demonstrated no cytotoxicity toward MC3T3-E1 cells, and the alloys exhibited effective antibacterial ability against methicillin-resistant staphylococcus aureus.
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DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2025
·
IF 7.3
Chenjing Qu,Xiaolong Han,Haiyun Wang,Ruidong Wang,Yifei Zhang,Weiwei Sun,Ziqian Shi,Yuting Wang,Penggang Yin
The widespread use of poly(ethylene terephthalate) (PET) has led to severe environmental pollution and significant resource depletion. The depolymerization of waste PET into bis(2-hydroxyethyl) terephthalate (BHET) offers considerable potential for chemical recycling. Although conventional glycolysis faces challenges such as low degradation efficiency and high energy requirements, an efficient catalytic method was developed herein to convert postconsumer PET into BHET under milder conditions. The incorporation of the cosolvent dimethyl sulfoxide (DMSO) into the reaction system reduced the degradation temperature to 150 °C, significantly lower than the temperature observed without cosolvents, which exceeded 190 °C. Under optimized conditions, the combination of a metal catalyst and the organic nitrogen heterocycle 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) enabled complete depolymerization of PET within 90 min, yielding BHET at 80.11%. In addition, the recrystallized product was repolymerized into PET, enabling closed-loop resource recycling. Life cycle assessment (LCA) indicates that this closed-loop approach is not only technically feasible but also environmentally beneficial, reducing energy consumption by approximately 64.54% and greenhouse gas emissions by 37.32%. This strategy offers a practical low-carbon solution for the sustainable recycling of waste PET.
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DOI
高影响因子
Desalination and Water Treatment
·
2025
·
IF 1
Jingyi Chen,Xiaoxue Zhang,Junsheng Liu,Shan Jiang,Chunyu Ji,Jie Zhang
A series of novel polyethyleneimine/graphene oxide (PEI@GO) membranes were prepared and their adsorptions for heavy metal ions in mixed solutions were examined. It was found that they had good sorption performances for Pb(II), Cu(II), and Zn(II) in water. Their adsorptions for Pb(II), Cu(II), and Zn(II) obeyed the first-order kinetic modeling, dominating a physical style. Meanwhile, the fitting of intra-particle diffusion showed that Pb(II) and Cu(II) did not conform to the intra-particle diffusion stage, whereas Zn(II) did. Moreover, it was confirmed that the sorption of PEI@GO membranes for Pb(II), Cu(II), and Zn(II) followed the Langmuir isotherm modeling, and the maximal values could reach 79.6 mg/g for Pb(II), 35.01 mg/g for Cu(II), and 32.27 mg/g for Zn(II), respectively. The calculation of thermodynamic parameters indicated that these adsorptions were spontaneous and endothermic processes. Further, the investigation of PEI@GO membranes for Pb(II), Cu(II), and Zn(II) in ternary mixed systems evidenced that Zn(II) can be preferentially removed via step-by-step mode. In addition, the exploration of sorption mechanism using XPS and FTIR analyses showed that ligand interactions were involved in the adsorptive removal of Pb(II), Cu(II), and Zn(II). This study discloses that PEI@GO membranes are promising adsorbents for the removal of heavy metal ions from water.
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DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2024
·
IF 8.1
Cong Gao,Wei Sun,Weitong Zhang,Qiao Zhang,Shanyi Guang,Qianjin Chen
Open-framework crystal structured vanadates have been extensively investigated as cathode materials for aqueous zinc-ion batteries (ZIBs). However, the inherent challenges of poor electronic conductivity and structural instability compromise the rate capability and overall cycle life. Herein, we first successfully synthesized octahedral MIL-101(V) and prepared the Zn 3 (OH) 2 V 2 O 7 ·2H 2 O@C (ZVOH@C) composite by in-situ electrochemical conversion of MIL-101(V)-derived crystalline V 2 O 3 and carbon composite (V 2 O 3 @C). The ZVOH@C composite of open-framework crystal structured Zn 3 (OH) 2 V 2 O 7 ·2H 2 O and conductive carbon skeleton not only possesses more active sites, more stable crystal structure and higher electrical conductivity , but also provides faster Zn 2+ diffusion kinetics. As expected, the ZVOH@C composite electrode exhibits excellent capacity of 506.3 mAh/g at a current density of 1.0 A/g, exceptional rate performance (375.7 mAh/g at 20.0 A/g), and impressive long-term cycling stability, maintaining 314.5 mAh/g over 5000 cycles at 20.0 A/g. This study demonstrates a promising method for designing new cathode materials through in-situ electrochemical synthesis for ZIBs .
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DOI
高影响因子
ENERGY & FUELS
·
2020
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IF 3.421
Xiaomin Peng,Licheng Wei,Yiyi Liu,Tianlun Cen,Zhifeng Ye,Zhaogen Zhu,Zhaotong Ni,Dingsheng Yuan
The key point to developing green and environmentally friendly zinc-air batteries is exploring efficient bifunctional electrocatalysts for oxygen reduction and evolution reactions (ORR and OER) on an air electrode. Herein, we reported a facile and green method for fabricating a bifunctional electrocatalyst of Co@N-CNT/rGO, which is composed of cobalt nanoparticles wrapped into nitrogen-doped carbon nanotubes growing on reduced graphene oxide. It is obtained by pyrolyzing a GO-wrapped two-dimension leaf-like zeolitic imidazolate framework. The Co@N-CNT/rGO-0.1 exhibits efficient catalytic activities for ORR and OER with a small Tafel slope. It benefits from the synergistic effect of the Co nanoparticle and N-CNT, the high conductivity of reduced graphene oxide and highly graphitizing carbon nanotubes, the great specific surface area, and suitable aperture size. Moreover, the Co@N-CNT/rGO-0.1 catalyst assembled primary zinc-air battery shows a high open-circuit voltage (1.43 V), a large peak power density (122 mW cm–2), and an excellent specific capacity (855 mA h gZn–1). In addition, the Co@N-CNT/rGO-0.1 assembly rechargeable zinc-air battery also displays an excellent cycling durability of 120 h at 5 mA cm–2. According to the above results, our work provides a cost-effective strategy to scale-up and commercialize the bifunctional electrocatalysts for zinc-air battery application.
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DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2020
·
IF 5.774
Yongli Sun,Jingshuai Li,Luhong Zhang,Bin Jiang,Xiaodong Yang,Na Yang,Feifei Peng,Mi Xu,Xiaoming Xiao
In view of the serious water pollution issue, a kind of environmentally friendly, dual-functional, energy-efficient and low-cost superwetting material is urgently prepared for oil/water separation and the degradation of dyes in wastewater. In our work, dual-functional Zn-Ni-Co LDH@NiMoO 4 nanoarrays (ZNC-NM) with porous core-shell structure were constructed on the stainless steel mesh (SSM) via a facile two-step hydrothermal method. The coated mesh exhibited favorable superhydyophilicity and underwater superoleophobicity with underwater oil contact angle (OCA) of 164.9°. Meanwhile, the as-prepared mesh possessed ultrahigh separation efficiency and high permeation flux for a series of oil/water mixtures. In addition, the good anti-fouling and self-cleaning property enabled the separation efficiency remain above 99.90% after 60 separation recycles. By virtue of good stability and anti-corrosive property, there were no remarkable alterations in the separation efficiency and underwater OCA of the designed mesh in harsh environments. More importantly, the NiMoO 4 nanosheets anchored on Zn-Ni-Co LDH with the visible light responsiveness demonstrated favorable photocatalytic performance, which could efficiently degrade organic dyes in wastewater. Therefore, the dual-functional mesh coated with ZNC-NM nanoarrays based on this facile strategy is a promising material for oil/water separation and photocatalysis, owning great application potential in wastewater remediation.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2020
·
IF 10.652
Yawen Cai,Yapeng Ma,Jinghua Feng,Mingyu Zhu,Xin Wang,Zhimin Lv,Ming Fang,Xiaoli Tan,Xiangke Wang
The efficient treatment of uranium (U) is an important and challenging issue regarding radioactive wastes management. Adsorbent with high efficacy, low-cost is urgently needed for alleviating the contamination of U-containing wastewaters. To solve these issues, we report a series of phytic acid (PA) modified Zn-Al-Ti layered mixed metal oxides (Zn-Al-Ti LMO@PAs) in this work, which shows the adsorption capacity as high as ∼1486 mg/g and could be easily obtained through a facile post-modification method. The adsorption performance of Zn-Al-Ti LMO@PAs for U(VI) are carefully estimated through batch experiments. With the aid of batch experiments and various characterization techniques, PA in Zn-Al-Ti LMO@PAs is found to make the most contribution for the chelation of U(VI), which favors for the adsorption selectivity and capability. The Zn-Al-Ti LMO@PAs are potential cost-effective adsorbents to remove the U(VI) in wastewaters.
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2021
·
IF 5.316
Xiaomin Peng,Jinming Zhang,Tianlun Cen,Zhifeng Ye,Yiyi Liu,Dingsheng Yuan
2-dimensional Co(OH) 2 -NiCo 2 O 4 hybrid nanosheets coupled with N-doping reduced graphene oxide (N-RGO) have been prepared by a facile two-step hydrothermal method for exploring the cost-effective and durable bifunctional oxygen electrocatalysts of Zn-air batteries. Co(OH) 2 -NiCo 2 O 4 /N-RGO exhibits the excellent catalytic activity for ORR with a positive half-wave potential of 0.80 V vs. RHE in 0.1 M KOH. And the assembled rechargeable Zn-air battery achieves a high open-circuit voltage of 1.485 V, a large peak power density of 99 mW cm −2 , and a remarkable cycle life of over 180 h. This work offers an inspiration to obtain efficient electrocatalysts for sustainable energy devices.
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DOI
高影响因子
JOURNAL OF MOLECULAR STRUCTURE
·
2021
·
IF 3.196
Zhiyuan Feng,Lin Cheng,Hong Fan,Jia Liu,Fusheng Han
This article has been retracted: please see Elsevier Policy on Article Withdrawal ( http://www.elsevier.com/locate/withdrawalpolicy ). This article has been retracted at the request of the Editor-in-Chief. In investigating concerns brought up regarding the authenticity of the article, the editors reached out to the corresponding author for an explanation and to request the original data. Per journal policy, the editors, at their discretion, may request deposition of any or all original data files for examination by the reviewers and/or editors. As a result of the author’s unsatisfactory explanation and failure to provide these data—in violation of journal policy—the editors feel that the findings of the manuscript cannot be relied upon. The corresponding author agrees to this retraction.
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高影响因子
Science Advances
·
2022
·Vol. 8
·期 10
·
IF 14.957
Huan Yu,Yinxiang Zeng,Nian Wu Li,Deyan Luan,Le Yu,Xiong Wen (David) Lou
We developed a three-dimensional hybrid fiber host consisting of interconnected N-doped hollow carbon spheres embedded with Sn nanoparticles (denoted as Sn@NHCF) for Zn metal anodes in high-performance Zn metal batteries. Experimental observations and density functional theory calculation reveal that the zincophilic Sn nanoparticles and N-doped carbons enable the homogeneous Zn deposition on the interior and exterior surfaces of the hollow fibers. Moreover, the hierarchical hollow fiber network effectively reduces the structural stress during the plating/stripping process. As a result, the developed Sn@NHCF host exhibits remarkable electrochemical properties in terms of high Coulombic efficiency, low voltage hysteresis, and prolonged cycling stability without dendrite formation. Moreover, a full cell based on the designed Sn@NHCF-Zn composite anode and a V2O5 cathode demonstrates superior rate capability and stable cycle life. This work provides a new strategy for the design of dendrite-free Zn anodes for practical applications.
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高影响因子
Energy Technology
·
2019
·Vol. 8
·期 3
·1901105
·
IF 3.163
Honglin Yan,Qiang Ru,Ping Gao,Shikun Cheng,Fuming Chen,Francis Chi-Chung Ling,Li Wei
Lamellar V 5 O 12 ·6H 2 O nanobelts coupled with inert Zn(OH) 2 ·0.5H 2 O are in situ fabricated via a facile hydrothermal strategy. Herein, the inert Zn(OH) 2 ·0.5H 2 O phase acts as a buffer matrix to strengthen the structural stability of V 5 O 12 ·6H 2 O host material, relieving the severe volume variation. Therefore, benefiting from the large interplanar spacing of active V 5 O 12 ·6H 2 O and volume buffering effect of inert Zn(OH) 2 ·0.5H 2 O, V 5 O 12 ·6H 2 O/Zn(OH) 2 ·0.5H 2 O hybrid (denoted as Z-V 5 O 12 ·6H 2 O) sustainably endures the repetitive Zn 2+ /Na + insertion/extraction and boosts the electrochemical properties. As cathodes for aqueous zinc-ion batteries, the Z-V 5 O 12 ·6H 2 O hybrid shows a high discharge capacity of 328 mAh g −1 at 50 mA g −1 and keeps 146 mAh g −1 at 1 A g −1 after 1000 cycles. For nonaqueous sodium-ion batteries, the hybrid also furnishes a high initial discharge capacity of 241 mAh g −1 at a current density of 50 mA g −1 and maintains 97 mAh g −1 at 100 mA g −1 after 100 cycles.
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高影响因子
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