CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Bao-Hong Xu,Yi-Han Song,Guo-Duo Yang,Jia-Yu Zhang,Yu-Qi Liu,Jie-Qiong Liu,Qi-Meng Zhang,Xing-Long Wu,Ming-Xiao Deng,Hai-Zhu Sun
As one of the most important cathode materials for aqueous zinc-ion batteries (AZIBs), polyaniline (PANI) has attracted much attention because of its high electrical conductivity, simple synthesis procedure and excellent redox reversibility. However, the morphology of PANI macromolecules and its spontaneous deprotonation properties lead to low capacity and poor cycle stability, which limits its further application. To address these issues, in this work, PANI is in-situ prepared on the surface of carbon cloth (CC) through chemical oxidation polymerization under the presence of carbonized polymer dots (CPDs). Compared with pure PANI cathode electrodes, the materials with appropriate amount of CPDs (CPDs/PANI@CC-10) show a high specific discharge capacity of 168 mAh g −1 at 0.1 A g −1 . Even at a high current density of 10 A g −1 , CPDs/PANI@CC-10 still exhibits a capacity of 102 mAh g −1 , and maintains 94.3 % of the capacity after 10,000 cycles. The profound mechanism investigation reveals that during the charge/discharge cycles, the percentage of protonated N greatly increases due to the addition of CPDs, and new N Zn O bonds are formed, which is beneficial to more stable cycle and larger amount of Zn 2+ storage. This work provides a new route for control the morphology and structure of PANI, which is of significant for its practical application in AZIBs.
研究领域:
材料科学
·
电化学
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产品关联
DOI
高影响因子
OPTICAL MATERIALS
·
2023
·
IF 3.9
Haoran Li,Jiao Wang,Yanping Wang,Aimei Zhao,Bing Li,Wei Li
The band gap of CdS (E g = 2.4 eV) was narrow, which made it unable to transmit short-wave sunlight through the CIGS absorber layer. Zn(O,S) thin film , prepared by doping O into ZnS, had a wider band gap, and the raw material was green and non-toxic, making it suitable as a buffer layer for solar cells. However, CBD-Zn(O,S) usually takes longer than CdS deposition. In this work, By shortening the deposition time through the fast hydrolysis of TAA . Na 3 NTA was added in the solutions to improve the quality of Zn(O,S) thin films. The effect of Na 3 NTA concentration on the complex ion contents was investigated. When Na 3 NTA was added at a concentration of 0.04 M along with TAA (0.04 M), the film had a high T% of 88.6%, E g of 3.76 eV, and a dense grain distribution. ZnS and ZnO grew at (111) and (100) crystals, respectively. Raman and XPS analyses showed the existence of Zn–S and Zn–O bonds, indicating the high crystalline quality of the Zn(O,S) thin films prepared with CBD. Finally, when the optimal concentrations of ZnSO 4 , NH 4 OH, Na 3 NTA, and TAA were 0.04 M, 0.48 M, 0.04 M, and 0.04 M, respectively, the prepared Zn(O,S) thin films could be used as a cadmium-free buffer layer for solar cells.
研究领域:
材料科学
·
光伏技术
·
薄膜技术
✓ 已验证
DOI
高影响因子
SENSORS
·
2017
·Vol. 17
·期 6
·1203
·
IF 2.677
Hongxiang Chen,Wei Jiang,Lianfeng Zhu,Youwei Yao
Amorphous indium gallium zinc oxide (a-IGZO) powder was prepared by typical solution-based process and post-annealing process. The sample was used as sensor for detecting C2H5OH, H2, and CO. Gas-sensing performance was found to be highly sensitive to C2H5OH gas in a wide range of concentration (0.5–1250 ppm) with the response of 2.0 towards 0.5 ppm and 89.2 towards 1250 ppm. Obvious difference of response towards C2H5OH, H2, and CO was found that the response e.g., was 33.20, 6.64, and 2.84 respectively at the concentration of 200 ppm. The response time and recovery time of was 32 s and 14 s respectively towards 200 ppm concentration of C2H5OH gas under heating voltage of 6.5 V.
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2024
·Vol. 35
·期 23
·1580
·
IF 2.8
Guo Zexuan,Wang Nan,Fei Xiaomiao,Yang Feng,Zhao Man,Peng Yanyan,Zhang Jing,Jiang Dayong
The generation, transfer, and collection of plasmon-derived hot electrons represent a distinctive pathway for photodetectors to utilize solar energy. However, previously reported devices have a low internal quantum efficiency due to excessively high Schottky barrier. The coupling distance between working medium and metal nanoparticles (NPs) is one of the key factors affecting the performance of optoelectronic devices. We constructed a dual-surface plasmon-enhanced (Mg, Zn)O-ultraviolet (UV) photodetector by applying Pt NPs and found that the assembled device exhibited broad sensitivity ranging from 340 to 370 nm at room temperature. Intense dual plasmonic resonance coupling is induced in a hybrid structure of two metallic layers separated by uniform ZnO-based films. Using surface plasmon-enhanced materials, the changes in the refractive index of ZnO/Pt/MgZnO and MgZnO/Pt/ZnO heterogeneous double-layer in the dielectric environment are beneficial for the tunneling of hot electrons. ZnO/Pt/MgZnO is superior to MgZnO/Pt/ZnO in terms of responsivity and response time. The responsivity of the ZnO/Pt/MgZnO device peaks at 2.87 A/W, exhibiting the great potential of dual plasmonic resonance coupling in a UV photodetector, which was finally investigated via Mie scattering. The response time of the photodetectors in a steady-state is 0.2 s, 0.3 s, while 0.1 s, 0.73 s is the response time of the photodetectors (PDs), which paves the way for future application advancements in the field of photodetection, imaging, photovoltaics, and photochemistry.
研究领域:
光电子学
·
纳米光子学
·
等离激元学
·
半导体器件
·
光电探测
✓ 已验证
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2025
·
IF 7.3
Jie Huang,Jun-Cai Zhang,Jia-Nan Bao,Wei-Qin Huang,Hu Li,Li-Mei Lin,Zhi-Ping Huang,Shui-Yuan Chen,Gui-Lin Chen
Tin selenide (SnSe), as a direct bandgap (1.1–1.3 eV) photovoltaic absorber material, has a theoretical power conversion efficiency comparable to commercial thin-film solar technologies. However, the efficiency of experimentally fabricated SnSe solar cells is significantly lower than the theoretical value, mainly constrained by two major bottlenecks: (1) the bulk defects leading to carrier recombination and (2) the bandgap mismatch at the interface. Additionally, the environmental toxicity of the CdS and its parasitic absorption of short-wavelength light also limit the sustainable development. This study proposes and systematically investigates the all-inorganic structure of FTO/Zn(O,S)/SnSe/Carbon. Replacing traditional CdS with Zn(O,S) can achieve tunable bandgaps and eliminate Cd toxicity. Through SCAPS-1D simulation, the thickness and carrier concentration of each functional layer are optimized, and the influences of bulk defect density, interface defect density, and resistance on device performance are analyzed. Meanwhile, the S content in Zn(O,S) is adjusted, and the sulfur enrichment (S content of 70%) induces the best conduction band offset (ΔEc = 0.05 eV). The resulting optimal device exhibits an efficiency of 22.46%, Voc = 0.90 V, Jsc = 30.06 mA/cm2, and FF = 83.39%. This work establishes a universal paradigm combining nontoxic material selection (Zn(O,S)/carbon), interface thermodynamic control, and defect passivation strategies, paving the way for the commercialization of sustainable thin-film solar cells.
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产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2024
·Vol. 50
·期 24
·52228-52239
·
IF 5.1
Dongjiang Wu,Weijie Lv,Zheng Li,Xuexin Yu,Cong Zhou,Bi Zhang,Wei Wang,Huanyue Zhang,Guangyi Ma,Fangyong Niu
High-entropy oxides (HEOs) have attracted extensive research interest due to their unique structural features, customizable elemental compositions, and tunable functional properties. Nevertheless, the complexity, low efficiency, and high cost of the existing HEO synthesis methods place limitations on them. In this study, Laser directed energy deposition (LDED) was employed to synthesize (Mg, Co, Ni, Cu, Zn)O oxides. Additionally, the novelty of applying the LDED process to multicationic systems was emphasized. The comparison between specimens fabricated from mixed powder via LDED(MP) and those fabricated from pre-sintered powder via LDED(SP) encompasses macroscopic morphology, microstructure, and performance. The results showed that SP significantly enhanced the density from 86.44 % to 96.70 % compared to MP. The macro-segregation of Cu and Cu 2 O in the phase composition was observed in MP and SP. High-temperature pre-sintering promoted the solid solution formation of Co and Ni during LDED, leading to more severe micro-segregation of Co and Ni. When employed as anodes in lithium-ion batteries, MP and SP have outstanding long-term cycle stability, according to electrochemical performance studies. At a current density of 100 mAg −1 , these specimens maintained a capacity retention rate of 100 % even after 200 cycles. The initial discharge capacities of MP and SP were respectively 477.73 mAh g −1 and 373.86 mAh g −1 . This study is expected to present a novel approach for the rapid synthesis of (Mg, Co, Ni, Cu, Zn)O oxide ceramics .
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DOI
高影响因子
ADVANCED POWDER TECHNOLOGY
·
2019
·
IF 3.25
Osman Ahmed Zelekew,Dong-Hau Kuo,Hairus Abdullah
Herein, we report the bimetallic (Sn,Zn)(O,S) oxysulfide nanocatalyst with a facile method. The Sn-based catalyst with the addition of Zn was synthesized with the proportions of 0, 20, 30 and 50% of Zn to Sn precursors for preparation. The catalysts were characterized by XRD , TEM , SEM XPS , and UV–vis instruments. The nanocatalysts were also tested for the detoxification of Cr +6 . The Sn-20 catalyst with 20 M percent of Zn(Ac) 2 ·2H 2 O showed an excellent performance for the induced photocatalytic reduction of Cr +6 under visible light irradiation at room temperature. The complete reduction of Cr +6 was achieved within 80 min by Sn-20 catalyst. However, 85.6, 97, and 94% of Cr +6 reductions were achieved within 80 min under visible light illumination by Sn-0, Sn-30, and Sn-50 catalysts, respectively. Hence, the bimetallic (Sn,Zn)(O,S) oxysulfide nanocatalyst will be a candidate and highly potential material for the detoxification of Cr(VI)-containing polluted water.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Yaopeng Pu,Yuyu Wang,Fei Pan,Yulong Ma,Feng Lin,Wenxin Ji,Yuanyuan Li,Yonggang Sun
The escalating severity of global water scarcity and pollution necessitates the development of efficient and sustainable treatment technologies. Solar-driven interfacial evaporation presents an environmentally friendly, low-energy solution for both seawater desalination and wastewater treatment. In this study, we introduce a multifunctional integrated spherical evaporator composed of lignin-wrapped ZnFe 2 O 4 /chitosan‑carbon aerogel spheres (ZFO/CLCA), employing renewable chitosan as a three-dimensional flexible framework. By integrating ZnFe 2 O 4 , a visible-light-active semiconductor, with sodium lignosulfonate, known for its excellent photothermal conversion capabilities, we constructed a three-component organic hybrid featuring an in-situ formed hierarchical porous structure through a one-step carbonization process. The resulting ZFO/CLCA material demonstrates a high density of interconnected multiscale pores, a substantial specific surface area, and broad-spectrum absorption (93.48% across 250–2500 nm). Under simulated solar irradiation (1 kW m −2 ), this material exhibits an evaporation rate of 2.33 kg m −2 h −1 and a solar-to-steam conversion efficiency of 94.54%. The distinctive through-hole structure effectively prevents surface salt accumulation in high-salinity environments (3.5–20 wt% NaCl) via concentration-gradient-driven ion reverse diffusion, maintaining excellent long-term stability over 12 h of continuous operation. Importantly, during photothermal evaporation, the material concurrently catalyzes the degradation of organic pollutants, achieving an 87.10% degradation rate of tetracycline (100 mg L −1 ). In the context of real industrial wastewater treatment containing high salt concentrations and antibiotics, the evaporator produces clean effluent that complies with discharge standards. This study highlights a multifunctional spherical carbon aerogel evaporator that integrates efficient photothermal evaporation, salt resistance, and catalytic degradation, thereby, establishing a promising material platform for integrated solar-driven water treatment systems with both scientific significance and practical application potential.
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DOI
高影响因子
Surfaces and Interfaces
·
2025
·
IF 6.3
Jianhua Zheng,Jiayi Hou,Zhen Xu,Zhenping Guan,Xiangyu Cao,Guangming Yin
Rational design of heterojunction is of vital importance for addressing the rapid recombination problem of photogenerated charge carriers in photoreactions. Herein, a highly efficient Z-scheme heterojunction with interfacial Zn-O-Ce bonds was successfully fabricated by hybridizing 3D flower-like hierarchical ZnCo 2 O 4 (ZCO) microspheres with CeO 2 nano particles (NPs) and used to photocatalytic remove multiple pollutants. These features of Z-scheme charge transfer mechanism and chemically bonded interface not only reserved the strong oxidation–reduction ability of CeO 2 /ZCO hybrid but also speeded up electron migration from CeO 2 to ZCO. Meanwhile, the 3D hierarchical structure provided rich photocatalytic reaction sites and increased light harvesting ability. Thus, the as-prepared CeO 2 /ZCO displayed an extraordinary photocatalytic decomposition of Ciprofloxacin (CIP) and Basic Fuchsin (BF), removal rate as high as 87.6 % and 90.7 %, respectively. This work can enlighten a new insight to design versatile hetero-catalysts for solar energy conversion.
研究领域:
材料科学
·
光催化
·
环境化学
·
纳米材料
·
能量转换
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2025
·
IF 3.9
Du Haoming,Wu Shenghao,Zhao Yuxuan
In this study, a series of non-equimolar ratio high-entropy rock-salt-type oxides (Mg, Co, Ni, Cu, Zn)O were prepared a high-temperature solid-phase method with tailored cation ratios, and their physical phase compositions and electrochemical properties were investigated. The result shows that (Mg, Co, Ni, Cu, Zn)O with varying elemental ratios form single-phase rock-salt structures when they are sintered at 1100°C under non-equimolar conditions. These oxides display a uniformly elemental distribution and irregular spherical particle morphology. With the increase in Ni or Co content, the electrochemical performance is significantly improved. Compared to the other six high-entropy oxides, (Mg0.1625, Co0.1625, Ni0.35, Cu0.1625, Zn0.1625)O powders have demonstrated excellent energy storage properties and rate capability, achieving a specific capacitance of 384.3 F/g at 1 A/g and a coulombic efficiency of 88.9%. These results demonstrate that non-equimolar (Mg, Co, Ni, Cu, Zn)O high-entropy rock-salt-type oxides have promising potential as advanced electrode materials. Graphical
研究领域:
材料科学
·
电化学
·
能量存储与转换
·
陶瓷材料
·
纳米材料
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2023
·
IF 5.2
Qifa Wan,Faming Zhang,Yifeng Xiong,Caiyun Shang
Using a simple and scalable solid-state synthesis process, a series of spinel-structured high-entropy oxides were systematically designed and synthesized in a Co–Mn–Fe–Cr–Ni–Zn–O system. These included (Co,Mn,Fe,Cr) 3 O 4 , (Co,Mn,Fe,Ni) 3 O 4 , (Co,Mn,Fe,Cr,Ni) 3 O 4 , (Co,Mn,Fe,Zn) 3 O 4 , (Co,Mn,Fe,Cr,Zn) 3 O 4 , (Co,Mn,Fe,Ni,Zn) 3 O 4 and (Co,Mn,Fe,Cr,Ni,Zn) 3 O 4 . The phase, microstructure and color evolution of 1/3Co 3 O 4 –1MnO-1/2Fe 2 O 3 -1/2Cr 2 O 3 –1NiO powders were studied without ZnO addition. These underwent four phase evolution processes and three color evolution processes before forming the final phase of black, octahedral (Co,Mn,Fe,Cr,Ni) 3 O 4 powders. The formation of an intermediate phase of (Co,Mn,Fe) 3 O 4 medium-entropy oxide powders served as the foundation for the creation of other high-entropy oxide powders. The infrared radiation properties of these synthesized medium and high-entropy oxides powders were evaluated in the near-infrared region at room temperature. Among these synthesized powders, the infrared emissivity values of (Co,Mn,Fe) 3 O 4 , (Co,Mn,Fe,Ni) 3 O 4 and (Co,Mn,Fe,Cr,Ni) 3 O 4 powders exceeded 0.8. All the synthesized powders exhibited excellent thermal stability after being annealed at high temperatures. Notably, after being annealed at high temperatures, the infrared emissivity values of these synthesized powders increased markedly without degradation, surpassing a value of 0.8, and displayed potential for applications in the field of high-temperature infrared energy savings.
研究领域:
材料科学
·
物理化学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Yachao Xu,Zhong Zhou,Peng Yu,Huiquan Gu,Zixu Zhang,Ying Wang
Efficient reduction of U(VI) to U(IV) during seawater uranium extraction remains a challenge. Here, cerium dioxide quantum dots were bonded to the surface of indium zinc sulfide (ZIS) to form ZIS composite cerium dioxide quantum dots (ZIS/QDs-Ce). The oxygen vacancies are able to activate the Zn-O bonds at the ZIS and QDs-Ce interfaces, thus enabling the constructed S-scheme heterojunction to show great potential in facilitating the separation and transfer of photogenerated carriers. ZIS/QDs-Ce exhibited high anti-bio-pollution activity by generating biotoxic free radical reactive oxygen species (ROS). The photo-induced reduction of uranium by ZIS/QDs-Ce in 10 ppm uranium spiked simulated seawater reached 99.6 %. Oxygen vacancies cause distortions in the crystal field, and the Zn-O bond activation process triggers the movement of ZIS/QDs-Ce from the singlet low-spin state to the stable triplet state, resulting in free-carrier trapping centers and optimized electronic energy band structures. ZIS/QD-Ce has superior uranium extraction capabilities and is highly recommended for uranium extraction from seawater.
研究领域:
材料科学
·
环境科学
·
核能工程
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）