Sustainable Energy & Fuels
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2022
·Vol. 6
·期 15
·3658-3668
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IF 6.813
Xirui Kong,Yichen Kong,Xiaobin Liao,Sheng Liu,Yan Zhao
Lithium–sulfur batteries (LSB) are regarded as one of the next-generation energy storage systems with a high energy density. However, the shuttle effect of lithium polysulfides (LiPSs) and irreversible consumption of the Li anode prevent the practical application of Li–S batteries. In this work, a mixed tetrahydrofuran (THF) and dipropyl ether (DPE) based electrolyte has been optimized for Li–S batteries. Due to the common-ion effect, the LiPS solubility has been significantly inhibited when the sulfur cathode is operating in a concentrated electrolyte containing an optimized solvent system with weak dissolving power. And no self-discharge effect occurred in the cells with these electrolytes during a 10 day storage. Besides, the coulombic efficiency (CE) for Li deposition/stripping has been improved by optimizing the ratio of dual lithium salts. Impressively, Li‖Cu half-cells can run stably for more than 500 cycles with a high CE (>99.3%). For these reasons, a Li–SeSPAN cell with a L1L2TE-1382 electrolyte demonstrates an excellent capacity retention (>94% after 500 cycles) with an ultrathin (50 μm) Li metal anode. With a good compatibility of the optimized electrolyte for both the Li metal anode and sulfur cathode, this work provides a new design strategy for the electrolyte for lithium–sulfur batteries.
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ChemElectroChem
·
2022
·Vol. 9
·期 15
·e202200523
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IF 4.782
Minmin Wang,Wenwu Song,Xu Miao,Li Zhou,Xunyue Wang,Yanfeng Tang
Graphical Let's split !: A low-cost and high-efficiency NiCoP/Mo 3 Se 4 multifunctional catalyst was reported for highly efficient full water splitting. The abundance interfaces in NiCoP/Mo 3 Se 4 played a great role in optimizing the electronic structure of the nanoheterogeneous to efficient charge transfer. As expected, a low voltage of 1.90 V was needed to drive full water splitting at the current density of 400 mA cm −2 . The simultaneous manipulation of the catalytic activity and intrinsic electrical conductivity in a unified system is difficult yet meaningful to unravel the possible strategy that can enhance the water splitting performance. In this work, a low cost and highly efficient NiCoP/Mo 3 Se 4 nano-heterogeneous bifunctional catalyst was reported for full water splitting. Further analysis revealed the abundance interfaces in NiCoP/Mo 3 Se 4 played a great role in optimizing the electronic structure of the nanoheterogeneous to efficient charge transfer. As expected, a low voltage of 1.90 V was needed to drive full water splitting at the high current density of 400 mA cm −2 .
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2022
·
IF 9.965
Yonglong Huang,Yuzhou Liu,Yanzhu Deng,Jing Zhang,Beibei He,Jian Sun,Zhihong Yang,Wei Zhou,Ling Zhao
The coupling of oxygen evolution and reduction reactions (OER and ORR) plays a key role in rechargeable Zn-air batteries (ZABs). However, both OER and ORR still suffer from sluggish kinetics, even when using the mainstream precious metal-based catalysts. Herein, oxygen vacancies-rich CeO 2 decorated CoSe 2 nanocubes are proposed as a novel air electrode to drive OER and ORR for ZABs. The resultant CeO 2 coupled CoSe 2 nanocubes (CeO 2 @CoSe 2 -NCs) catalyst exhibits a significantly enhanced bifunctional activity relative to the pristine CoSe 2 -NCs and the pristine CeO 2 . Moreover, an assembled ZABs using this CeO 2 @CoSe 2 -NCs electrode delivers a high output power density of 153 mW cm −2 and a long-life stability over 400 cycles, superior to the benchmark Pt/C-IrO 2 electrode. Theoretical calculations reveal that the electronic interaction and oxygen vacancies in CeO 2 @CoSe 2 -NCs contribute to efficient oxygen electrocatalysis . This protocol provides a promising approach of constructing oxygen vacancies in hybrid catalysts for energy conversion and storage devices.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2022
·
IF 5.518
Yun Xing,Xin Tang,Chengshuang Ling,Yu Zhang,Zhiyuan He,Guangying Ran,Huimin Yu,Ke Huang,Zhirong Zou,Xiaoli Xiong
Transition metal selenides are widely used in electrocatalysis on account of high electrical conductivity , good stability and low cost. In this study, using nickel-cobalt layered double hydroxide (NiCo-LDH) as precursor, a simple two-step method was used to prepare three-dimensional (3D) Setaria viridis-like NiCoSe 2 nanoneedles arrays on nickel foam (NiCoSe 2 NNA/NF). Benefiting from the abundant catalytic active sites provided by the 3D nanoneedles array structure, the covalent reciprocity between Ni, Co and Se can effectively facilitate the free movement of ions and electrons on the electrode surface. As a hydrazine sensor, the electrochemical performance of the NiCoSe 2 NNA/NF was studied by cyclic voltammetry (CV) and other electrochemical techniques , which exhibits outstanding electrocatalytic performance. When the signal-to-noise ratio is 3 (S/N = 3), the sensitivity is 16170 μA mM −1 cm −2 , the lower detection limit is 0.5 μM. It also shows well anti-interference and long-term stability. In addition, the successful applications in water environments samples also demonstrated the feasibility of the sensor. This method provides a new idea for the development of selenide-based electrochemical sensors .
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Sustainability
·
2022
·Vol. 14
·期 15
·9754
·
IF 3.889
Jimeng Feng,Jian Shen,Xinze Wang,Yanping Liu,Wei Li,Jiangping Qiu
Steroid estrogens (SEs) are mainly derived from livestock manure, and composting is the common method of bioresource utilization. In this study, an open-air composting experiment with dairy manure was conducted to observe the degradation and loss of five SEs under the influence of different precipitation intensities and additional mixed fermentation strains. SE determination results for dairy manure after 30 days of composting indicated that the average removal rates of 17α-estradiol (E2α), estrone (E1), 17β-estradiol (E2β), 17α-ethinyl estradiol (EE2), estriol (E3), and estradiol equivalent (EEQ) were 76.67%, 71.07%, 73.88%, 92.02%, 98.77%, and 88.11%, respectively, partly due to SE runoff. The rates of SEs leaching from the open-air composting dairy manure ranged from 0.05% to 4.75% after 10 rounds of 5–60 mm/d simulated rainfall. The total leaching amount of SEs was positively correlated with rainfall, but the leaching concentrations of SEs were just the opposite. As a result of its role as a degradation intermediate of other SEs, E3 was the most prone to run off. By strengthening the action of microorganisms, the total leaching amount of EEQ increased by 5%, E3 increased by five times, and E2β also underwent a transition from a conjugated form to free. However, there were also fewer final SEs remaining in the composted product, as well as the environmental risks of conjugated SEs. These conclusions can provide beneficial suggestions and references for controlling the environmental risks of SEs in the process of composting livestock and poultry manure.Keywords:steroid estrogen;simulated precipitation;leaching;dairy manure;aerobic composting
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JOURNAL OF SOLID STATE ELECTROCHEMISTRY
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2022
·Vol. 26
·期 8
·1605-1612
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IF 2.747
Hu Jie,Li Jingying,Wei Zhengnan,Zhang Shuying
“Rocking-chair” zinc-ion batteries (ZIBs) are potential commercial energy storage devices because of their high energy density and safety. However, using appropriate cathode materials with weak polarization effect and tolerating the rapid insertion/extraction of zinc ions are still the huge challenges. Here, a WSe 2 nano-flower cathode material with hierarchical structure is successfully prepared by a facile solvent thermal strategy. The electrochemical data confirm that the WSe 2 cathode has high specific discharge capacity (545 mA h g −1 at 0.1 A g −1 ), excellent rate performance, and stable cyclic performance (81% after 100 cycles), which are superior to most reported electrode materials. The layered structure is beneficial to increase the specific surface area and conductivity of the electrode material and improve the battery discharge performance. This study opens new opportunities to promote the commercialization of rechargeable aqueous ZIBs.
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Light-Science & Applications
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2022
·Vol. 11
·期 1
·1-10
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IF 20.257
Xie Yao,Song Yapai,Sun Guotao,Hu Pengfei,Bednarkiewicz Artur,Sun Lining
The continuously growing importance of information storage, transmission, and authentication impose many new demands and challenges for modern nano-photonic materials and information storage technologies, both in security and storage capacity. Recently, luminescent lanthanide-doped nanomaterials have drawn much attention in this field because of their photostability, multimodal/multicolor/narrowband emissions, and long luminescence lifetime. Here, we report a multimodal nanocomposite composed of lanthanide-doped upconverting nanoparticle and EuSe semiconductor, which was constructed by utilizing a cation exchange strategy. The nanocomposite can emit blue and white light under 365 and 394 nm excitation, respectively. Meanwhile, the nanocomposites show different colors under 980 nm laser excitation when the content of Tb 3+ ions is changed in the upconversion nanoparticles. Moreover, the time-gating technology is used to filter the upconversion emission of a long lifetime from Tb 3+ or Eu 3+ , and the possibilities for modulating the emission color of the nanocomposites are further expanded. Based on the advantage of multiple tunable luminescence, the nanocomposites are designed as optical modules to load optical information. This work enables multi-dimensional storage of information and provides new insights into the design and fabrication of next-generation storage materials.
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Inorganic Chemistry Frontiers
·
2022
·Vol. 9
·期 12
·2880-2894
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IF 7.779
Jia-Ying Zhu,Lin Cheng,Yi-Ming Zhao,Meng-Yu Li,Zi-Zhao Wang,Juan Wang,Cheng Wang,Kai-Yao Wang
Visualization of the ion exchange mechanism for 137Cs and 90Sr decontamination is important for safe radioactive liquid waste reprocessing and emergency response improvement in the event of a nuclear accident. Here, the remediation of Cs+ and Sr2+ was achieved through ion exchange using a cadmium selenidostannate, [CH3NH3]3[NH4]3Cd4Sn3Se13·3H2O (CdSnSe-1), with rapid exchange kinetics, high β/γ radiation resistances, broad pH durability and facile elution. The framework constructed from mono-lacunary supertetrahedral clusters features a great negative charge density of 3.27 × 10−3 that accounts for the superhigh exchange capacities of 371.4 (Cs+) and 128.4 mg g−1 (Sr2+). Single-crystal structural analysis on the exchanger during the “pristine–ion exchange–elution” cycle supplies instructive information to elucidate the uptake and recycle mechanism for Cs+ and Sr2+. The broken symmetry of the cluster caused by a vacant site, combined with the co-templating effects of mixed methylammonium/ammonium, contributes to the formation of voids I and II that show adsorption activity for both Cs+ and K+ ions. In comparison, the divalent Sr2+ ions with higher hydration degree exchange with (alkyl)ammonium cations in a 1 : 2 molar ratio, resulting in its location at a new void (III) closer to the framework and thus a higher binding strength. The energy variation during the adsorption process based on a DFT calculation illustrates the high efficiency of CdSnSe-1 for capture of both Cs+ and Sr2+. This “visualized” ion exchange underlines the robustness and flexibility of CdSnSe-1 as a Cs+ and Sr2+ trapper, and reveals the deeper structure–function relationship from a new surface interaction viewpoint.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2022
·
IF 9.136
Jinhang Yang,Jiangli Sun,Shuo Chen,Danquan Lan,Zhihong Li,Zuji Li,Jingwen Wei,Zebin Yu,Hongxiang Zhu,Shuangfei Wang,Yanping Hou
Development of efficient and stable photocatalysts is of essential for photocatalytic degradation of refractory organics in wastewaters. Herein, the novel S-scheme MoSe 2 /AgBr (MS/AB) heterojunctions were synthesized for antibiotics degradation. Various characterization results showed that the S-scheme MS/AB photocatalysts exhibited efficient carriers’ separation and strong redox potential. Tetracycline (TC) (20 mg/L) degradation efficiency of 81.4% was achieved using the 5MS/AB within 90 min at pH of 9, superior to those of the counterparts. Photogenerated carriers' transfer and photocatalytic reaction mechanism of the S-scheme MoSe 2 /AgBr heterojunction were deduced by DFT calculation, in-situ XPS and work function calculation. Moreover, possible degradation pathways of TC were proposed based on identified intermediates, and most of the intermediates showed lower toxicity than that of TC. The 5MS/AB photocatalyst also showed great stability and excellent antibacterial effect. This study advances the design of efficient photocatalysts and enriches related mechanisms.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2022
·
IF 9.965
Abdou Karim Darboe,Xiaosi Qi,Xiu Gong,Qiong Peng,Yanli Chen,Ren Xie,Wei Zhong,Guanglei Wu
Interfacial polarization and geometrical morphology play a significant role in the attenuation of electromagnetic (EM) wave. Herein, the two-dimensional (2D)/2D heterojunction with flower-like geometrical morphology is proposed and produced, which may simultaneously provide a large contact area for achieving strong interfacial polarization and activates more sites for the possible multiple EM wave reflection and scattering. By adopting a simple two-step hydrothermal method, MoSe 2 /MoS 2 and MoS 2 /MoSe 2 inner and outer-interchangeable heterojunctions consisting of 2D MoSe 2 and MoS 2 nanosheets with flower-like geometrical morphology were successfully synthesized. The results revealed that the hydrothermal temperatures significantly impacted the flower-like geometrical morphology and MoS 2 content. By optimizing the microstructures, the designed MoSe 2 /MoS 2 and MoS 2 /MoSe 2 heterojunctions presented enhanced comprehensive EM wave absorption properties (EMWAPs), possessing strong absorption capability, wide absorption bandwidth and thin matching thicknesses. Generally, this work demonstrates that the optimized EMWAPs of designed heterojunctions mainly originate from the special interfaces and morphology configuration, which also paves a new way for the designing and synthesis of transition metal dichalcogenides-based heterojunction as a novel and desirable candidate for high-performance microwave absorbers.
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Journal of Energy Storage
·
2022
·
IF 8.907
Tao Cui,Shang Wu,Sheng Zhou,Qiaoliang Feng,Xin Xu,Huanlei Zhao,Qiong Su,Yanbin Wang,Xiangfei Zhao,Quanlu Yang
The core-shell structure is always a greatly effective structure in asymmetric hybrid supercapacitor , duo to a high specific surface area and porosity that can accommodate partial expansion during the redox reaction. Herein, a cobalt-glycerolate@nickel hydroxidenitrate microsphere (CoG@Ni 3 (NO 3 ) 2 ·(OH) 4 ) with core-shell structure is prepared by a simple two-step hydrothermal method . The as-produced CoG@Ni 3 (NO 3 ) 2 ·(OH) 4 possesses extremely high specific capacity (265.9 mA h g −1 at 1 A g −1 ) and an excellent rate capability (with 75.5% of initial capacity at 10 A g −1 ). In addition, as an cathode material, flower-sphere-like Bi-Bi 2 Se 3 materials is selected to match a new CoG@Ni 3 (NO 3 ) 2 ·(OH) 4 //Bi-Bi 2 Se 3 asymmetric supercapacitor. It exhibits a specific capacity (125.1 mA h g −1 at 1 A g −1 ) and an impressive rate property (with 77.6% of initial capacity at 10 A g −1 ). Satisfactorily, the asymmetric supercapacitor device, which cleverly assembles by the above two electrode materials, achieves impressive specific energy of 54 Wh kg −1 at 760 W kg −1 , and a capacitance retention rate of 80% after 4000 cycles. The excellent performance of the asymmetric supercapacitor proves that the materials possess great potential in the energy storage field.
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ANALYTICAL CHEMISTRY
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2022
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IF 8.008
Suya Zhang,Lulu Ning,Zhihui Song,Xinyue Zhao,Feng Guan,Xiao-Feng Yang,Jianjian Zhang
Early diagnosis of rheumatoid arthritis (RA) is crucial to prevent deterioration and improve the prognosis of disease outcome. However, current clinical diagnostic methods are unable to achieve accurate and early detection of RA. In this work, we designed an activatable organic nanoprobe (ONP-CySe) capable of specific and real-time imaging of ClO– in early RA. ONP-CySe comprises a near-infrared fluorescent selenomorpholine-caged cyanine dye as the sensing component and an amphiphilic triblock copolymer triphenyl phosphine derivative for mitochondria targeting. Our results showed that ONP-CySe successfully detected elevated levels of ClO– in the mitochondria of macrophages with high selectivity, low limit of detection (31.5 nM), excellent photostability, and good biocompatibility. Furthermore, ONP-CySe can also be used to monitor anti-inflammatory responses and efficacies of RA therapeutics, such as selenocysteine and methotrexate, in BALB/c mouse models. Therefore, our research proposes a universal molecular design strategy for the detection of ClO–, which holds potential for early diagnosis and drug screening for RA.
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