JOURNAL OF MATERIALS RESEARCH
·
2014
·Vol. 29
·期 10
·1175-1182
·
IF 1.815
Wang Wenyan,He Yiming,Wu Tinghua,Wu Ying
SnZn(OH) 6 (ZHS) hollow cubes were synthesized by a facile self-templated method at room temperature, and Ag/AgCl/ZHS particles were prepared by a photodepositing method. The crystalline structure and morphology of the prepared particles were characterized by x-ray diffraction, UV-vis diffuse reflectance spectroscopy, scanning electron microscopy, and N 2 adsorption. The results indicated that the particles had almost uniform monoclinic geometry and size. The photocatalytic oxidation of Rhodamine B was used to evaluate the photocatalytic activity of the synthesized photocatalysts. It is found that the hollow Ag/AgCl/ZHS showed the highest catalytic performance under visible or UV light, which can be attributed to the synergetic effect of Ag, AgCl, and ZHS.
研究领域:
材料科学
·
光催化
·
纳米材料
·
环境化学
✓ 已验证
DOI
高影响因子
ENVIRONMENTAL RESEARCH
·
2025
·
IF 7.7
Jie Song,Zhiwen Yuan,Lijun Chen,Yuhua Niu,Zhiqiang Wei
For the effective removal of phenol from the environment, photocatalytic synergistic adsorption is currently one of the key methods. By leveraging the polysaccharide backbone structure of sodium alginate (SA), Zinc hydroxystannate (ZHS) was introduced into the gel structure using a co-precipitation technique. Additionally, gangue waste was repurposed through a polymerization reaction. This approach not only enhanced the specific surface area of the gel material but also compensated for its limited absorption in the visible light spectrum. As a result, the PKSPGM@ZHS was successfully synthesized. The adsorption of Ph by PKSPGM@ZHS in the dark reaction phase aligns with the quasi-second-order kinetic model and the Langmuir model, it shows that this is a spontaneous exothermic process, and its photocatalytic process conforms to the Langmuir-Hinshelwood first-order reaction kinetics model, where ZHS undergoes a series of reactions to generate ·OH radicals from ·O 2 − in the presence of photocatalysis. Ph can be degraded to CO 2 and H 2 O through a series of reactions, thereby achieving complete removal of Ph from wastewater solutions, with a removal rate reaching up to 70 %. After 5 cycles of adsorption/photocatalysis tests, KSPGM@ZHS still h exhibits a high removal efficiency, with the removal rate remaining at 54.26%. This demonstrates its excellent recyclability.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2025
·
IF 4.3
Xiaoye Geng,Haipeng Jiang,Wei Gao,Kai Zhang,Tianjiao Zhang,Guoliang Li,Fengyu Zhao,Songling Jin,Zhichen Zhang,Bing Sun
Polyethylene (PE) dust presents a severe deflagration hazard due to its high flammability, prompting the urgent need for novel suppressants with multi-mechanistic synergistic effects. This study selects a perovskite-structured material, zinc hydroxystannate (ZHS), and evaluates its suppression potential in polymer dust deflagrations using a macro–micro coupled method that integrates thermal analysis with reactive molecular dynamics. Experimental results show that ZHS exhibits excellent endothermic decomposition ability (22 % reduction in heat absorption) and water vapor cooling performance (47 % reduction in total heat release). The metal-oxidation barrier layer formed by its high-temperature decomposition significantly improves the thermal stability of materials, which delays the maximum decomposition temperature of PE to 421.67 °C and improves the carbon residual rate to 38.1 %. Molecular simulations reveal that the oxygen vacancies of ZHS facilitate oxygen adsorption and consumption. Its Zn/Sn-based reactive intermediates effectively interrupt radical chain reactions through C 2 H 4 complexation (C 2 H 4 + Zn 2+ → ·C 2 H 4 Zn) and ·OH/·O high-reactive radicals capture (SnO + O 2 → ·SnO 3 , etc.). These mechanisms collectively reduce the generation of C 2 H 4 and CO by 23.6 % and 70 %, respectively. Compared to conventional physical suppressants, ZHS demonstrates an efficient dual-element synergistic suppression capability. The findings validate the suppression potential of ZHS and provide a promising strategy for the application of perovskite-based suppressants in polymer dust deflagration prevention.
研究领域:
燃烧科学
·
材料科学
·
化学工程
·
安全工程
·
计算化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Yaxin Wang,Xuelong Liao,Wei Wang,Shan Chen,Jialei Chen,Huan Wang
The loose and randomly oriented byproduct (i.e., Zn4(OH)6SO4·xH2O, ZHS) in situ formed on the zinc (Zn) surface is recognized to be the primary cause for dendritic Zn growth and side reactions. Switching the detrimental passivation film into a dense and kinetically favorable solid electrolyte interphase (SEI) is a straightforward strategy to tackle these issues faced by Zn metal anodes but remains largely unexplored. Herein, a new polymer film directly grown on Zn metal through room-temperature plasma-enhanced chemical vapor deposition is proposed to induce the lateral growth of ZHS nanosheets and decrease the Zn2+ desolvation barrier, thereby forming a beneficial composite SEI for suppressing Zn dendrite growth and surface corrosion. As a result of the joint effect, we realize an impressively stable cycling behavior in symmetric cell over 3400 h at 2 mA cm–2. Moreover, full cells also demonstrate prolonged lifespans. This work opens a new avenue for stabilizing Zn metal batteries by turning detrimental ZHS into a favorable interlayer.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Zihan Qi,Murong Xi,Zhenjie Liu,Rui Sheng,Wei Wang,Tianlong Wu,Yudai Huang
The Zn/electrolyte interface stability is related to HER, passivation, dendrites, corrosion and Zn 2+ deposition orientation. Reducing the occupation of H 2 O dipoles in the inner layer of electrical double layer (EDL) is conducive to the inhibition of interfacial side reactions and directing the deposition of Zn 2+ along the (002) crystalline surface, which are beneficial to the reduction of dendrites and the improvement of plating/stripping reversibility. A mechanism is elucidated by which Acetyl-L-carnitine Hydrochloride (A-L-CN) reconfigures the EDL structure and guides the selective deposition of Zn 2+ in this paper. Theoretical calculations show that A-L-CN can cover the high-energy active sites on the Zn (101) crystal plane and control the specific crystal orientation of the deposits along the (002) crystal plane to produce faceted epitaxial growth. The electrochemical test results show that the Zn anode has excellent plating/stripping reversibility as well as good cumulative capacity (10 mA cm −2 , 1 mA h cm −2 , ACE of 99.80 %, CPC of 7,753 mA h cm −2 ). The assembled Zn 2+ hybrid supercapacitor (ZHS) and Zn//PANI full cell show excellent performance (ZHS up to 60,000 cycles; the capacity retention ratio of Zn//PANI full cell is 76.7 % after 1,000 cycles). The work offers the possibility of achieving stabilized Zn/electrolyte interface performance.
研究领域:
电化学
·
材料科学
·
储能技术
✓ 已验证
DOI
高影响因子
Materials Today
·
2022
·
IF 26.943
Min Zhang,Kefan Zhou,Donghao Ma,Helin Wang,Xiaoyu Tang,Miao Bai,Fu Liu,Zhiqiao Wang,Yue Ma
The parasitic Li dendrite formation and retarded ion diffusion dynamics inhibit the deployment of solid-state batteries (SSBs) at high areal capacity loadings. Here, we present the modular design of the Li + percolating network by grafting the ionic-conductive polyether amine (PEA) at the multiple scales: the PEA modified zinc hydroxystannate (PEA@ZHS) (flame retardant units) and polyamide 6 (mechanical rigid units) are coherently introduced to optimize the PEO-based solid electrolyte (PX-PEA@ZHS) with the Young's modulus (3.41 GPa), ionic conductivity (4.29 × 10 −4 S cm −1 at 55 °C) and flame retardancy (22% reduction of heat release rate); on the other hand, PEA molecules are grafted onto the acetylene black additive to establish the dual conductive network, endowing two orders of magnitude increase of ionic conductivity for the high-compaction cathodes. The as-integrated symmetric cell exhibits a critical current density up to 0.8 mA cm −2 and cycling endurance for 1000 h at 0.2 mA cm −2 ; upon the SSBs assembly with the record high loading of LiFePO 4 (12.4 mg cm −2 ), the high-areal-capacity, cycling stability as well as the extreme temperature endurance till 110 °C are simultaneously realized, which inspire the rational design of commercially feasible, energy-dense, flame-resistance energy storage prototype.
研究领域:
材料科学
·
电化学
·
能源存储
·
电池技术
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）