JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
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2025
·
IF 1.9
Shikun Tong,Yuemeng Ren,Yanxin Jin,Kele Yan
Solidified natural gas has obtained much attention in gas storage applications. However, the slow rate of hydrate formation and the requirement for agitation reactor restrict the technology development. In this work, we study the hydrate formation within activated carbon static reactor coupled with amino acids. The effect of four amino acids, three activated carbon particles and three water-to-AC ratio on hydrate formation was systemically investigated. The tryptophan has the best-promoting performance as promoter on hydrate formation. The conversion ratio and the maximum growth rate is 0.78 ± 0.04 and 23.78 ± 1.38 V·V−1·min−1, respectively. The large activated carbon particles and high water-to-AC ratio provide abundant granular lattice and free water to promote hydrate formation. Compared with the pure L-tryptophan solution system, the maximum growth rate of hydrate increased by 8.9 and 17.3% in middle activated particles size and large size coupled with L-tryptophan. The maximum growth rate of hydrate in the activated carbon static bed coupled with L-tryptophan is 24.2 ± 0.1, 27.9 ± 0.11, and 30.1 ± 0.12 V·V−1·min−1 at water-to-AC ratio of 0.3, 0.5, and 1, respectively. The combination of large-size activated carbon particles, high water-to-AC ratio and the L-tryptophan are very useful scheme designs. This research offers guidelines for process optimization in future large-scale methane storage applications by hydrate.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2024
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IF 5.8
Yuyin Dai,Hongguang Zhao,Ri Sa,Qiuyu Lin,Yinghua Li
Enhancing the efficiency of layered nickel-cobalt double hydroxides (NiCo-LDH) as electrode materials represented a promising strategy for advancing supercapacitor technology and improving energy storage systems. However, achieving optimal synthesis conditions and addressing the inherent limitations of NiCo-LDH remained critical challenges. In this study, we developed a novel hydrothermal approach to fabricate ultrathin NiCo-LDH nanosheets with a highly porous architecture. In the present study, we have introduced a hydrothermal methodology aimed at the fabrication of ultrathin NiCo-LDH nanosheets characterized by an intricate and highly porous architecture. This innovative approach entailed the simultaneous deposition of nickel and cobalt hydroxides in the presence of ammonium fluoride, a technique that not only streamlined the synthesis process, but also markedly augmented the electrochemical performance of the resultant material. These effects collectively contributed to improved electron transport and structural stability. The optimized NiCo-LDH-18 electrode achieved an exceptional specific capacitance of 2266.6 F g⁻ 1 and an energy density of 104.8 W h kg⁻ 1 , with a remarkable 93.19 % capacitance retention after 40,000 cycles. Additionally, the potential window of the system closely approximated its theoretical maximum, reaching 96.88 % at a current density of 10 A g⁻ 1 . This refined synthesis strategy offered a significant advancement in supercapacitor performance and stability. By overcoming the inherent drawbacks of traditional supercapacitors, the developed materials provided an effective solution for meeting the growing demand for storage devices with high energy density.
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BIORESOURCE TECHNOLOGY
·
2024
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IF 9.7
Hao Huang,Shengyao Liu,Xucong Guo,Huoyan Jiang,Yihong Cai,Zixuan Tan,Guangping Zhou,Xiaolan Cai,Min Zhuang,Shaoqu Xie
Efforts are underway to explore alternative methods to the Haber-Bosch process for sustainable ammonia production, while the potential for ammonia extraction from natural nitrogenous biomass is under-exploited. Here, a synergistic catalytic strategy involving acid and modified Ru-based catalysts is communicated for the direct production of amines and ammonia from chitin. Phosphoric acid promotes the cleavage of ether bonds in biomass polymers and also serves to protect amino groups from being removed. Selective hydrogenation, deoxygenation, and amination can be achieved by controllably adjusting the ratio of Ru 0 /Ru n+ . The utilization of nitrogen atoms in chitin can reach up to 95 % (21 % amines, 74 % ammonium), and the catalytic process is applicable to waste shrimp shells. This study demonstrates the possibility of efficient production of nitrogen-containing compounds from abundant biopolymers.
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PubMed
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APPLIED CATALYSIS B-ENVIRONMENTAL
·
2024
·
IF 20.2
Peng Zhang,Cai Liang,Mudi Wu,Yongjie Li,Xiaoping Chen,Daoyin Liu,Jiliang Ma
The efficiency and sustainability for the recycling of plastic wastes into hydrogen was investigated. An integrated microwave-driven valorization of plastic wastes and CO 2 for H 2 and CO production was proposed. Specifically, plastic wastes were decomposed into H 2 and solid carbons, followed by carbon elimination via CO 2 gasification under microwave irradiation. Through the high-throughput screen of catalysts as well as the optimization of key parameters, over 96% hydrogen was converted into H 2 with a yield of 480 mmol∙g −1 H plastic while the carbon conversion and CO 2 conversion reached up to 70% and 53%. The five-cycle successive test displayed extraordinarily high and stable catalytic activity due to the facile elimination of carbon deposition. The application for real-world plastic wastes further demonstrated the efficient microwave-driven CO 2 gasification of plastic wastes into H 2 and CO production as a feasible and sustainable technology toward the waste-to-energy circular economy.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Junjing Li,Wanxin Dang,Yaqian Liu,Liang Wang
The efficiency of an electrocatalytic system with filtered Pd-loaded membrane electrodes was investigated to improve the mass transfer process of the electrocatalytic system. A Pd/CGC/Al 2 O 3 membrane electrode (5 mg·cm −2 graphite + 10 wt% graphene + 5 wt% carbon black) was prepared on the tubular Al 2 O 3 membrane substrate. The results showed that the membrane electrode could realize the complete removal of chlorpheniramine maleate (CPM) 120 min. Furthermore, the Pd/CGC/Al 2 O 3 membrane electrode exhibited good tolerance to sulfites, and the electrocatalytic activity was almost unaffected in the presence of NO 3 – , Cl − , CO 3 2– , and HCO 3 – in the wastewater. The Pd/CGC/Al 2 O 3 membrane electrode surface was interconnected to form a three-dimensional porous membrane structure through the introduction of carbon materials. The membrane electrode had a larger specific surface area and the metal Pd nanoparticles were uniformly loaded on the surface of CGC/Al 2 O 3 tubular electrode. Combined with the analysis of quenching experimental data, the removal mechanism of CPM on Pd/CGC/Al 2 O 3 membrane electrode was proposed. The Pd/CGC/Al 2 O 3 membrane electrode had good stability over 7 cycles and could be adapted to the electrocatalytic hydrodechlorination of chlorinated PPCPs in different environments, which is promising for certain applications.
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ANALYTICAL CHEMISTRY
·
2025
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IF 6.7
Fei Hu,Kaihui Liu,Yunyun Zhang,Shuhao Zhao,Tianyi Zhang,Cuiping Yao,Xing Lv,Jing Wang,Xiaolong Liu,Niancai Peng
Infectious diseases, especially respiratory infections, have been significant threats to human health. Therefore, it is essential to develop rapid, portable, and highly sensitive diagnostic methods for their control. Herein, a short-time preamplified, one-pot clustered regularly interspaced short palindromic repeats (CRISPR) nucleic acid detection method (SPOC) is developed by combining the rapid recombinase polymerase amplification (RPA) with CRISPR-Cas12a to reduce the mutual interference and achieve facile and rapid molecular diagnosis. SPOC can reduce the detection time and stably detect up to 1 copy/μL of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) RNA without affecting the detection sensitivity. A highly sensitive one-pot assay integrated with reverse transcription RPA is achieved by wrapping paraffin with a specific melting point on the lyophilized CRISPR reagent surface. A self-heating pack is designed based on thermodynamic principles to melt the paraffin and release CRISPR reagents, enabling low-cost and time-saving detection. Notably, the designed system, coupled with RNA extraction-free technology, can achieve “sample-in-answer-out” detection of the SARS-CoV-2 Orf1ab gene within 22 min using smartphone imaging. The developed assay is validated on 12 clinical samples, and the results 100% correlate with real-time polymerase chain reaction. SPOC is time-saving, is easy to operate, and can eliminate centrifugal and complex hardware devices, satisfying the demand for point-of-care diagnostics in resource-constrained settings.
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APPLIED CATALYSIS B-ENVIRONMENTAL
·
2025
·
IF 21.1
Feng Long,Yulian Cao,Bo Zhang,Yuwei Chen,Yanjun Chen,Xiaolei Zhang,Hanjie Ying,Chenjie Zhu
Herein, we successfully prepared the subnanometric Ni anchored on boron and nitrogen co-doped carbon, featuring vertically aligned molybdenum disulfide (MoS₂) for hydrogenation conversion of fatty acid into alkanes. Remarkably, the Ni/MoS 2 @BNC catalyst with a relatively low Ni loading (approximately 1.0 wt%) exhibited outstanding performance and great stability, achieving complete conversion of fatty acid with octadecane and heptadecane selectivity of 94.6 % and 5.4 % at the condition of 245 ℃, 3 MPa H 2 and 6 h. Based on the density functional theory (DFT) calculations and experimental results, the excellent catalytic properties of Ni/MoS 2 @BNC catalyst are attributed to the synergistic effect between subnanometric Ni and N, B co-doped carbon material. This synergy creates abundant basic sites, modulates the electronic structure, and shifts the d-band center downward, which promotes a preferential adsorption of H 2 and CH 3 CH 2 COOH, further enhancing the hydrogenation conversion of fatty acid into alkanes.
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RSC Advances
·
2025
·Vol. 15
·期 33
·26601-26607
·
IF 4.6
Yuqi Dai,Lanmei Zhang,Yuemeng Wang,Anni Fu,Lanling Chu,Lei Zhao
In this work, an integrated method based on the novel packed-fiber solid-phase extraction (PFSPE) combined with high-performance liquid chromatography-ultraviolet detector (HPLC-UV) detection system was proposed for the detection of daidzein, genistein and glycitein in human urine. To efficiently adsorb three kinds of isoflavones in biological fluid, polystyrene-based nanofibers were prepared and used as adsorbents in customized solid phase extraction devices. The composition of the nanofibers, the amount of different salt ions added, the type of eluent, and the interaction of eluent volume, the amounts of nanofibers added, and the extraction time were analyzed to find the optimal adsorption conditions, respectively. The method of optimal extraction conditions for the analysis of three soy isoflavones exhibited low limits of detection (LOD) and limits of quantitation (LOQ) of 1.68–2.74 μg L−1 and 5.09–8.3 μg L−1, respectively, and spiked recovery of 95.2–107.1%, and has been successfully applied to human urine samples. This study demonstrated the potential of PFSPE as methods for the adsorption and detection of daidzein, genistein, glycitein in biological fluid concurrently, providing a valuable tool for pharmacokinetic studies and investigations into the metabolism and bioavailability of isoflavones.
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JOURNAL OF SOLID STATE CHEMISTRY
·
2025
·
IF 3.5
Xiao Duan,Fusen Lv,Jiaqi Liu,Tie Liu,Shuang Yuan
MXenes exhibit a distinctive two-dimensional (2D) open-layered architecture, characterized by an extensive specific surface area, abundant surface functional groups, and excellent electrical conductivity, rendering them a promising candidate for the anode material in lithium-ion capacitors (LICs). However, the inherent tendency of MXenes towards interlayer restacking and structural degradation severely impedes ion transport kinetics, leading to compromised electrochemical performance. To address this issue, a straightforward hydrothermal synthesis strategy was proposed for fabricating porous Co 3 O 4 nanoneedle/MXene composites via in-situ grown self-assembly. The two-dimensional layered structure, high electrical conductivity, and abundant surface functional groups of MXene enable efficient ion intercalation, while Co 3 O 4 contributes enhanced theoretical capacity and rich oxidation states. These two components form a mutually supportive synergistic effect. This synergy not only shortens the ion/electron transport pathways within the MXene matrix but also mitigates the agglomeration and volume expansion phenomena associated with the Co 3 O 4 nanoneedles. Therefore, the obtained Co 3 O 4 MXene electrode maintained a specific capacity of 632 mA h g −1 after 1000 cycles at a high current density of 1 A g −1 , far exceeding the original MXene electrode. Assembled with activated carbon to form Co 3 O 4 nanoneedles/MXene//AC lithium-ion capacitors (LIC), achieving a high energy density of 254 Wh k g −1 and a maximum power density of 4000 W kg −1 . The excellent performance of the porous and porous Co 3 O 4 nanoneedle/MXene composite reflects its potential as a high-performance anode material for LIC.
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ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Yuqiao Zhao,Geyuan Jiang,Suqing Zeng,Lisha Sun,Haipeng Yu,Dawei Zhao
Ultrathin devices represent a significant advancement in materials science and technology, playing a crucial role in wearable electronics, smart healthcare, and human-computer interaction. However, achieving mechanical durability, interface stability, and performance trade-offs remains challenging. Herein, the study reports a scalable layer-by-layer exfoliation strategy for the rapid and patterned fabrication of ultrathin cellulose ionogel devices, employing a solvent-induced assembly of cellulose molecules and active substances. The resulting freestanding devices, with a thickness of 12.46 µm—approximately one-ninth the thickness of human hair, exhibited desirable mechanical tensile strength (6.5 MPa), high pressure sensitivity (75.82 kPa −1 ), low impedance characteristics (5.83 Ω at 1 kHz), and outstanding interfacial stability, as evidenced by the ability to endure 500 cycles of tape stripping. Furthermore, due to effective self-healing and controllable induced peeling characteristics, the study is able to conduct the patterned fabrication of various ultrathin devices without the limitation of active materials. This peeling strategy based on sustainable resources offers a valuable solution for designing and optimizing ultrathin electronic devices without requiring substantial time or cumbersome processing.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Zhenxuan Zhang,Lianxiang Qiu,Yujian Li,Qingyao Zhu,Mengting Yang,Akihisa Inoue,Xiong Liang,Jiang Ma
While drinking water disinfection remains a cornerstone of public health by mitigating waterborne pathogens, the generation of carcinogenic disinfection by-products (DBPs) presents an escalating global challenge. This study systematically evaluates persulfate-driven advanced oxidation processes (AOPs) coupled with Fe-Si-B amorphous alloy ribbons as catalytic mediators in pre/post-chlorination treatment trains. Surface reconstruction of the metallic glass ribbons through persulfate exposure induced a hydrophilic transition (water contact angle: from 88.7° to 28.6°/43.9°), enhancing interfacial reactivity. Both peroxydisulfate (PDS, S 2 O 8 2– ) and peroxymonosulfate (PMS, HSO 5 – ) demonstrated effective activation by Fe-Si-B, achieving 61.2–88.7 % total organic carbon (TOC) removal via synergistic radical (SO 4 − / OH/ O 2 •− ) and non-radical (Fe(IV), 1 O 2 ) pathways. The best treatment group achieved with PDS/Fe-Si-B treatment followed by post-chlorination process which successfully reduced the formation of chlorinated-DBPs (Cl-DBPs) and brominated-DBPs (Br-DBPs) by 65.3 % and 67.4 %, respectively. Notably, asymmetric PMS preferentially oxidized bromide (Br – ) to hypobromous acid (HOBr), elevating Br-DBPs yields by 43.4 % during subsequent chlorination, indicating that PDS outperformed PMS in controlling the formation of DBPs. By contrast, the PDS/Fe-Si-B system suppressed more DBP formation by 44.1–49.5 % compared to conventional granular activated carbon (GAC) adsorption treatment, attributed to its superior pre-oxidation of DBP precursors. These findings establish metallic glass-activated persulfate systems as a dual-functional solution for simultaneous humic acid abatement and DBP mitigation in advanced water treatment.
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AICHE JOURNAL
·
2025
·
IF 4
Hao Huang,Nadia N. Intan,Jialin Tan,Zidi Liu,Da Zhang,Xiaolan Cai,Min Zhuang,Shaoqu Xie
Strong metal-support interaction (SMSI) significantly influences the catalytic activity, selectivity, and stability through the geometric and electronic effects of a catalyst. We herein develop a stable Ru 0 −Mo δ+ catalyst for the hydrodeoxygenation (HDO) of fatty acids to alkanes (2.5 μmol g −1 cat h −1 ) at low to room temperatures, meanwhile demonstrating its general applicability to various complex fatty acids. Kinetic studies and reaction pathway analysis revealed that the Ru–Mo SMSI significantly reduced the reaction activation energy by altering the HDO pathways. Mechanistic studies indicate that electron transfer occurs between the active Ru nanoclusters and the Mo δ+ support, which enhances catalytic activity by promoting the adsorption of RCOO* at the Ru 0 −Mo δ+ interface. Our research establishes an efficient Ru–Mo catalyst for biomass upgrading at low temperatures and calls for reassessing the electronic effects in the M 0 -M δ+ interfacial catalysis model.
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