MATERIALS CHEMISTRY AND PHYSICS
·
2026
·
IF 5.2
Abdelazeem S. Eltaweil,Nouf Al Harby,Mervette El Batouti,GopiKrishna Pasam,Mazin Al Kitani,Eman M. Abd El-Monaem
In this study, the adsorption capability of green algae-derived biochar was enhanced by integrating with iron sulfide, creating the FeS 0.66 @GA-BC 0.33 composite. The magnetic FeS 0.66 @GA-BC 0.33 composite exhibited excellent adsorption performance toward Cr(VI) with a maximal adsorption capacity of 423.73 mg/g. Surprisingly, the FeS 0.66 @GA-BC 0.33 composite showed fast adsorption, with an equilibrium time of 60 minutes. Furthermore, batch experiments showed that the maximum removal efficiency of Cr(VI) by FeS 0.66 @GA-BC 0.33 was 92.39% at pH 3, 20 °C, and an adsorbent dose of 0.01 g. The kinetic analysis indicated that the pseudo-second-order model best described the adsorption process, while the isotherm results showed good agreement with both the Langmuir and Freundlich models. A combination of response surface methodology (RSM) and Box–Behnken design (BBD) was used to optimize the adsorption of Cr(VI) onto FeS 0.66 @GA-BC 0.33 . The independent variables were adsorbent dose (5–30 mg), initial Cr(VI) concentration (50–300 mg/L), and contact time (1–120 min). Analysis of variance (ANOVA) showed that the maximum removal efficiency reached 99.09% at an adsorbent dose of 17.5 mg, an initial Cr(VI) concentration of 50 mg/L, and a contact time of 120 min. The Cr(VI) adsorption mechanism was proposed based on the X-ray photoelectron spectroscopy spectra of fresh and used FeS 0.66 @GA-BC 0.33 composites, suggesting the governing reduction reaction, electrostatic interaction, and coordination bond pathways on the adsorption of Cr(VI).
✓ 已验证
DOI
高影响因子
Advanced Optical Materials
·
2026
·
IF 7.2
Wanling Mao,Siyong Wang,Li Zhang,Yujia Luo,Yuyao Feng,Yunhai Xiong,Yixuan He,Yuhui Dong,Yousheng Zou,Haibo Zeng
Low-toxicity quantum dots (QDs) based on group I-III-VI elements have attracted significant interest due to their color-tunability for wide-gamut displays. Nevertheless, the width of the blue-emitting peak remains considerably broader than those of the green and red counterparts, resulting in degraded color purity, restricted gamut coverage, and diminished energy efficiency in blue-emitting devices. Here, we report spectroscopically pure blue QDs (λ = 465 nm) with an ultranarrow FWHM of 36 nm, achieving excellent color purity for blue-emitting I-III-VI QDs. Employing a two-step hot-injection method with precise thickness control, this approach enables epitaxial growth of an atomically thin 0.35 nm thick AgGaS 2 (AGS) shell on Ag-In-Zn-Ga-S cores. Using in situ HRTEM on systematically synthesized AIZGS@AGS architectures, we directly captured the controlled epitaxial growth of this shell, revealing a clean core–shell interface. The high-crystallinity AGS shell passivates surface defects, narrowing the PL spectrum from 103 to 36 nm. Moreover, systematic In:Zn ratio tuning further affords AIZGS@AGS QDs that exhibit narrow linewidths and continuous spectral coverage across the blue region (465–509 nm). Our study provides an effective approach for high-quality I-III-VI blue QDs, demonstrating significant potential for advanced display applications.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Mingyue Wang,Xiaohua Jia,Xiaoyu Zhang,Jin Yang,Haojie Song
Interfacial chemical locking enables stable Ga incorporation into solid lubricant coatings. • Ga (stress buffer), ZIF-8 (load support), graphene (shear reduction and transfer film) synergize. • Covalent bonds (Ga O, N H, Si-O-Si) prevent agglomeration and extrusion of metal under friction. Gallium-based liquid metals exhibit fluidity and reactivity at friction interfaces, creating a lubrication mode that merges liquid-film and solid-support effects. However, their incorporation into solid lubricant coatings faces critical challenges such as poor dispersion stability, insufficient load-bearing capacity, and a tendency to be squeezed out from the contact area. In this study, we successfully constructed an interface-stabilized, densely structured inorganic-organic composite coating, designated GaZGr-K-EP, by embedding a ZIF-8 framework into liquid gallium to stabilize its morphology, introducing graphene to mitigate the sedimentation of Ga/ZIF-8, and modifying the inorganic phase with KH550 to enable interfacial chemical bonding with the epoxy resin. This inorganic-organic interfacial bonding not only prevents coating failure during friction but also, for the first time, unlocks the solid lubrication and anti-wear mechanism of liquid gallium. In this mechanism, liquid gallium dissipates contact stress through localized flow, while ZIF-8 provides rigid load-bearing support. During friction, a Ga 2 O 3 oxide film forms and is reinforced by graphene to develop a continuous transfer film, achieving an ultralow friction coefficient of 0.055 and an ultralow wear rate of 4.33 × 10 −14 m 3 /N·m. This work demonstrates that interfacial chemical locking represents a novel strategy for realizing solid lubrication with liquid metals. Download: Download high-res image (204KB) Download: Download full-size image
✓ 已验证
DOI
高影响因子
PLANT PHYSIOLOGY AND BIOCHEMISTRY
·
2026
·
IF 6.2
Su Li,Qi Jiang,Yong Qiang Gao,Ren Fang Shen,Qing Song Zheng,Xiao Fang Zhu
Aluminum (Al) toxicity in acidic soils significantly limits crop productivity by inhibiting root growth and nutrient uptake. Brassinosteroid (BR), a key plant hormone, has emerged as a crucial regulator of stress tolerance. This study investigates the role of BR in mitigating Al toxicity in rice ( Oryza sativa ) and explores the interplay between BR and gibberellic acid (GA) under Al stress. Our results show that Al stress rapidly elevates endogenous BR level in rice roots, which alleviates Al-induced root growth inhibition. Specifically, 0.01 μM BR achieves a maximum remission rate of approximately 20% for Al-induced root growth inhibition. BR application significantly reduced Al accumulation in root tips (by approximately 25%) and cell walls, particularly by inhibiting the overexpression of XYLOGLUCAN ENDO TRANSHYDROLASE/GLUCOSYLASE 5/9/11/19 ( OsXTH5/9/11/19 ), which reduces Al binding in hemicellulose fractions and upregulating Cellulose synthase A catalytic subunit 4/7/9 ( OsCesA4/7/9 ) to enhance cell wall’s barrier function against Al. BR also modulates hemicellulose composition and suppresses the expression of the Al transporter gene Nramp aluminum transporter 1 ( OsNRAT1 ), thereby reducing Al uptake into root tip cells. Additionally, BR mitigates Al toxicity via the GSK3/SHAGGY-Like KINASE 2 ( OsGSK2 )-mediated BR signaling pathway: OsGSK2 overexpression lines ( OsGSK2-OE ) exhibit enhanced Al resistance, while RNAi lines ( OsGSK2-RNAi ) show increased Al sensitivity. Furthermore, BR upregulates key expansin genes ALPHA-EXPANSIN 1/4/7 ( OsEXPA1/4/7 ) and BETA-EXPANSIN 2 ( OsEXPB2 ), which promotes root growth under Al stress. Notably, under Al stress, BR enhances endogenous GA levels through the transcription factor BRASSINAZOLE RESISTANT 1 ( OsBZR1 ): Al represses OsBZR1 expression, which is rescued by BR treatment. This process involves upregulating GA biosynthetic genes such as OsGA20OX , restoring Al-suppressed gene expression, and mitigating Al-induced OsGA2OX overexpression to maintain GA homeostasis. Exogenous GA treatment mimics BR’s alleviatory effects, highlighting critical crosstalk between the BR and GA pathways. This study provides novel insights into BR-mediated Al detoxification, revealing a key BR-GA interaction that enhances Al tolerance in rice and offers potential for improving crop resilience in acidic soils.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Shuyang Shi,Chen Yang,Baozhong Ma,Hui Yang,Zhihe Cao,Yubo Liu,Yongqiang Chen,Chengyan Wang
Ga exhibits enrichment in coal-based solid waste, establishing it as a promising alternative source for Ga recovery. The HNO 3 pressure leaching process effectively achieves simultaneous leaching of Al and Ga while retaining most of the Fe in the residue. However, separating Ga from acidic solutions containing Fe and Al remains a persistent challenge in hydrometallurgy due to their similar physicochemical properties. Herein, a simplified and effective two-stage sequential solvent extraction process using acid phosphorus extractants (P507 and P204) for selective Ga recovery was proposed. Under optimized conditions, P507 removed 97.2 % of Fe from coal gangue HNO 3 leach liquor with limited co-extraction of Ga (10.1 %) and Al (5.7 %). Subsequent P204 extraction recovered 99.2 % Ga with only 9.1 % Al co-extraction from the Fe raffinate. Stripping with 2 mol·L –1 H 2 SO 4 yielded 88.0 % Ga recovery, with the extractants showing excellent regeneration and cycling performance. Mechanistic studies including FT-IR, UV-Vis, ESI-MS, and stoichiometric analysis confirmed coordination through both P = O and P–O–H groups, forming Fe(HA)A 3 and Ga(HL)L 3 complexes (A = P507; L = P204 ligands), respectively. This study presents a highly efficient approach for the separation of Fe/Ga/Al and Ga recovery from HNO 3 leach liquor, featuring exceptionally low acid depletion.
研究领域:
湿法冶金
·
溶剂萃取
·
资源回收
·
无机化学
·
环境工程
✓ 已验证
产品关联
DOI
高影响因子
Nature Communications
·
2025
·Vol. 16
·期 1
·1-12
·
IF 15.7
Zhang Shipeng,Li Zhen,Li Menggang,Gu Yu,Han Ying,Zeng Ruijin,Tao Lu,Liu Youxing,Ye Na,Han Xiaocang,Luo Mingchuan,Zhao Xiaoxu,Yu Yan,Guo Shaojun,Zhang Jin
Dual-atom catalysts are a class of important catalytic systems for accelerating the kinetics of solid-phase conversion of K 2 S 2 to K 2 S in potassium-sulfur battery cathodes, yet their uncontrolled metal-metal interactions greatly limit their catalytic capability, leading to low conversion efficiency of potassium-sulfur batteries. Herein, we report the precise synthesis of Ga-Cd dual-atom catalysts with strong orbital electron coupling of p -block Ga and d -block Cd, anchored on hollow mesoporous carbon spheres (Ga-Cd DAs-HMCS) for boosting the performance of potassium-sulfur batteries. Ga shows strong adsorption capacity for potassium polysulfides, but lacks sufficient valence electrons to promote their conversion. We demonstrate that the introduction of Cd with a more filled valence electron configuration enables the transfer of electrons into the empty orbitals of Ga via strong orbital electron coupling, which enhances the catalytic ability of the Ga site to activate the S-S bond in potassium-sulfur chemistry, and thus accelerates the conversion kinetics from K 2 S 2 to K 2 S. This enables a S/Ga-Cd DAs-HMCS cathode material with an improved rate performance up to 589 mAh g −1 at 5 A g −1 .
研究领域:
电化学
·
材料科学
·
能源化学
·
纳米催化
·
电化学储能
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nanoscale
·
2025
·
IF 5.1
Chuangxin Zhou,Zhiheng Zhang,Yuan Gao,Weize Diao,Siyi Zou,Jun Zhu,Jiangtao Xu,Guozhen Liu
Surface modification of Eutectic Gallium Indium (EGaIn) to inhibit oxidation has been a long-lasting challenge in material science, with limited research reporting the formation of a covalent bond between Ga and modifiers for stability purposes. Taking advantage of strong reductive property of EGaIn, this study developed a simple method for spontaneous reduction of aryldiazonium salts on EGaIn nanoparticle surface to form stable covalent Ga-C sigma bonds, effectively suppressing surface oxidation.Comprehensive characterization confirmed the formation of the covalent Ga-C bond rather than Ga-N=N-C bonds on the EGaIn nanoparticle surface. Approximately 20% of Ga(0) in EGaIn forms Ga-C bonds. Notably, the short chain aryl modified EGaIn nanoparticles exhibited high stability and negligible surface oxidation. This straightforward strategy for preparing stable aryl modified EGaIn nanoparticles allows the introduction of a range of ligands on the EGaIn nanoparticle surfaces, offering promising opportunities for diverse applications across multiple fields.
研究领域:
材料科学
·
纳米科技
·
表面化学
·
生物材料
·
药物递送
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2025
·
IF 21.1
Jiabing Geng,Yafang Luo,Jiale Song,Hongjie Yu,You Xu,Hongjing Wang,Kai Deng,Ziqiang Wang,Liang Wang
Electrocatalytic reforming of polyethylene terephthalate (PET)-derived ethylene glycol (EG) into high-value glycolic acid (GA) is a potential strategy for PET plastic upcycling, and the efficiency mainly depends on the identification of high-performance electrocatalysts. In this study, we synthesize Ga-incorporated PdCu metallene (GaO x -PdCuene) with an oxygen-bridge structure (GaO x -PdCuene) for the electrolysis of PET hydrolysate towards GA production. GaO x -PdCuene demonstrates an impressive Faradaic efficiency of 98.72 % for GA production at a potential of 0.9 V, along with stable operation for over 100 h. The experimental and theoretical analyses show that the Ga-induced oxygen-bridge structure, accompanying with p-d orbital hybridization, efficiently regulates electronic structure of Pd, which effectively facilitates *OH species generation and optimizes adsorption energies of intermediates on Pd active sites, leading to high activity and selectivity for GA generation. The work highlights the design of oxygen-bridge structure in Pd-based electrocatalysts for efficient conversion of PET wastes to high-value GA product.
研究领域:
材料化学
·
环境催化
·
可持续能源
·
高分子化学
·
电化学
·
纳米材料
·
绿色化学
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
·
2024
·
IF 4.9
Xilong Ding,Yunpeng Jiang
In this study, glass bubbles (GBs) and gallium-based liquid metal (LM) were combined at varying volume fraction ratios to prepare the composites (GB-LMs), with the objective of optimising their state of matter and overall properties. Furthermore, the incorporation of high thermal conductive particles, including copper and silver, was pursued in augmenting the thermal conductive efficiency of the resulting composites. The thermal conductivity (TC), electrical conductivity (EC) and density were measured in order to construct a comprehensive structure - property relationship, while the underlying microphysical mechanisms were elucidated through the numerical simulations based on the distinctive architectures observed. As the loading of LM droplets increases, the GB-LMs undergo a transition from a scattered state to a thick pasty state and then to a dilute gel state. The composite sample with a loading of 32 % LM droplets exhibited a moderate pasty state, with a TC of 4.7 W/(m·K), an EC of 380 S/m, and a density of 2.4 g/cm 3 . The introduction of copper or silver powders into the GB-LMs resulted in a TC of 8.0 W/(m·K), an EC of 1.59 × 10 4 S/m and a low density of 3.2 g/cm 3 . The incorporation of high TC particles into GB-LMs has the potential to markedly improve the TC-to-density ratio of the composite system. These findings facilitate the implementation of LM-based composites in the advanced thermal management.
研究领域:
材料科学
·
热管理工程
✓ 已验证
产品关联
DOI
高影响因子
Nanoscale Research Letters
·
2018
·Vol. 13
·期 1
·1-10
·
IF 3.125
Lan Lifang,Li Sheng,Li Jun,Lu Lu,Lu Yan,Huang Si,Xu Shuaijun,Pan Chunyang,Zhao Fenghua
A sol-gel method was adopted to obtain LiNi 0.5-x Ga x Mn 1.5 O 4 ( x = 0, 0.04, 0.06, 0.08, 0.1) samples. The effect of Ga doping on LiNi 0.5 Mn 1.5 O 4 and its optimum content were investigated, and the electrochemical properties at room temperature and at a high temperature were discussed. The structural, morphological, and vibrational features of LiNi 0.5-x Ga x Mn 1.5 O 4 ( x = 0, 0.04, 0.06, 0.08, 0.1) compounds were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier transform infrared spectroscopy (FT-IR). The XRD results demonstrate that all samples have a disordered spinel structure with a space group of Fd3m, and Ga doping restrains the formation of the Li x Ni 1-x O secondary phase. FT-IR analysis reveals that Ga doping increases the degree of cation disorder. The SEM results reveal that all samples possess a fine spinel octahedron crystal. The electrochemical performance of the samples was investigated by galvanostatic charge/discharge tests, dQ/dV plots, and electrochemical impedance spectroscopy (EIS). The LiNi 0.44 Ga 0.06 Mn 1.5 O 4 sample with the optimum content shows a superior rate performance and cycle stability after Ga doping, especially at a high discharge rate and high temperature. In addition, the LiNi 0.44 Ga 0.06 Mn 1.5 O 4 sample retained 98.3% of its initial capacity of 115.7 mAhg −1 at the 3 C discharge rate after 100 cycles, whereas the pristine sample delivered a discharge capacity of 87.3 mAhg −1 at 3 C with a capacity retention of 80% at the 100th cycle. Compared with the pristine material, the LiNi 0.44 Ga 0.06 Mn 1.5 O 4 sample showed a high capacity retention from 74 to 98.4% after 50 cycles at a 1 C discharge rate and 55 °C.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
INORGANIC CHEMISTRY
·
2026
·
IF 4.7
Yuguo Feng,Caikang Wang,Xueting Wang,Zhijuan Li,Liang Liu,Zihan Zhou,Zhe Xu,Xuanxiao Zhu,Meng Li,Dongmei Sun,Yawen Tang
The development of highly active and durable electrocatalysts for the alkaline hydrogen evolution reaction (HER) is essential for advancing sustainable hydrogen production through anion exchange membrane water electrolysis (AEMWE). In this work, we report the one-pot solvothermal synthesis of Ga-doped Ru nanosheets (RuGa NSs) as a high-performance alkaline HER catalyst, where Ga incorporation is shown to optimize the interfacial water structure to enhance catalytic activity. The optimized RuGa NSs exhibit outstanding alkaline HER performance, requiring a low overpotential of only 18 mV at 10 mA cm–2, coupled with a small Tafel slope of 37.2 mV dec–1. When integrated into an AEMWE device, the RuGa NSs||NiFe-LDH-based AEMWE enables a low cell voltage of 1.74 V to deliver 1.0 A cm–2 in 1.0 M KOH at 60 °C. Moreover, the AEMWE device shows exceptional long-term stability, operating continuously for 200 h at 0.5 A cm–2 with a minimal voltage decay of 5.5%. Operando Raman spectroscopy results demonstrate that Ga doping promotes the dynamic transformation of rigid, hydrogen-bonded water into more mobile free-water molecules. This restructuring creates a favorable local reaction environment by increasing the flexibility of the hydrogen-bond network, thereby facilitating water dissociation and proton transfer.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2021
·
IF 5.316
Jingjing Zheng,Xiaotian Li,Bo Zhang,Xiaoxin Zou,Qihua Liang,Hui Chen,Guo-Dong Li
The concentration of acetone in exhaled breath is an efficient indicator for the diagnosis of diabetes. However, it is difficult to detect acetone in exhaled breath due to the extremely low acetone concentration, rather complex composition and very high humidity. Herein, we report Pt-decorated foam-like Ga-In bimetal oxide nanofibers (Pt-GIO) for trace concentration acetone detection. We found that the Pt-GIO based sensor exhibits enhanced sensing response towards acetone compared with that of Ga-In bimetal oxide (GIO), due to the formation of Schottky contact between Pt and n-type GIO, leading to the increased chemisorbed oxygen. As a result, the Pt-GIO based sensors gives a high response (3.2), short response time (13 s) to 1.8 ppm acetone and very low detection limit (300 ppb). The Pt-GIO sensor also gives good stability and is nearly insensitive to moisture in the range of 40% RH to 95%. These advantages including high response, low detection limit, short response time and high moisture resistance endow Pt-GIO a promising sensing material for acetone detection in exhaled breath.
研究领域:
材料科学
·
医学诊断
✓ 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）