Journal of Materials Chemistry A
·
2018
·Vol. 6
·期 41
·20267-20276
·
IF 9.931
Sheng Liu,Yan Liu,Wanwan Lei,Xin Zhou,Kang Xu,Qiquan Qiao,Wen-Hua Zhang
We have exploited an efficient electrostatic attraction strategy to fabricate hybrid 2D–2D heterostructures consisting of few-layered ReS2 nanosheets chemically anchored on both sides of reduced graphene oxide in vertical orientation (v-ReS2/rGO) via a one-pot hydrothermal approach. The additive hydroxylamine hydrochloride plays a critical role in reversing the negatively charged pristine rGO to positively charged rGO, which favors the electrostatic attraction of ReO4− and facilitates the subsequent growth of the few-layered ReS2 nanosheets perpendicular to the rGO substrates, where ReS2 nanosheets present a thickness of ∼3.7 nm and a height of ∼50 nm relative to the rGO scaffold. Due to the synergistic effects of the elegant 2D–2D nano-hierarchy created on graphene, the resulting v-ReS2/rGO nanocomposite exhibits reversible lithium and sodium storage with excellent specific capacity and rate capability at low potentials, making such 2D–2D materials promising candidates as anode hosts in alkali ion batteries.
研究领域:
材料科学
·
能源存储
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DOI
高影响因子
Surfaces and Interfaces
·
2023
·
IF 6.2
Zhijun Lai,Shiya Rong,Shule Huang,Moran Qin,Jieming Huang,Xuyan Zhang,Zhang Zhang,Junming Liu
All-solid-state flexible supercapacitors with high-efficiency and durable performance show a promising application prospect in wearable electronics, electrochemical energy storage. However, it still exists challenges to integrate flexible, efficient and stable performance for all-solid-state supercapacitor. In this work, we have synthesized the ultra-high density ReS 2 nanosheets on the porous carbon framework (ReS 2 @PCF) by a hydrothermal method . Based on ReS 2 @PCF, we have further prepared a ReS 2 @PCF-based supercapacitor device. Electrochemical measurements demonstrate that the flexible ReS 2 @PCF electrode possesses a specific capability of 125.3 F/g and also a large power density of 10.278 kW/kg at a charge/discharge current density of 5 A/g, which is able to light up a red light-emitting diodes (LED). Moreover, it keeps a high 91.5% capacitance retention ratio after being tested for 6000 cycles. Our work offers a new insight into the solutions for the integration of flexible, highly efficient and stable supercapacitor. It shows a potential application in special cases, such as wearable electronic clothes, and it will also facilitate their development towards a practical application.
研究领域:
材料科学
·
能源存储
·
纳米技术
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DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Jing Wang,Shiyu He,Mingfu Ye,Yongping Dong
The inherent water insolubility of iridium complexes seriously restricts their application in aqueous electrochemiluminescence (ECL) sensing systems. In order to solve this problem, this study innovatively used water-soluble polymer polyvinyl alcohol to encapsulate the iridium complex ([Ir(dFppy) 2 (d(t-Bu)bpy)](PF 6 )) in a hydrogel, and successfully obtained nanosheets of iridium complex (IrNS) with good dispersion. Systematic studies on the behavior of IrNS ECL in aqueous media showed strong and stable cathodic ECL when persulfate (S 2 O 8 2− ) was used as a co-reactant. Notably, the introduction of rhenium disulfide microspheres (ReS 2 MS) can produce significant cathodic ECL enhancement effects by efficiently catalyzing the conversion of S 2 O 8 2− to generate more SO 4 − . Bisphenol A (BPA) can react with S 2 O 8 2− to reduce the ECL intensity, based on which an ECL sensor was constructed for its detection. Under optimal conditions, ECL intensity varied linearly with BPA concentration, ranging from 1.0 × 10 −10 to 1.0 × 10 −5 mol L −1 with a detection limit of 5.5 × 10 −12 mol L −1 . The fabricated sensors with high sensitivity and selectivity provide a new avenue for the application of water-insoluble iridium complexes in ECL sensing.
研究领域:
分析化学
·
环境科学
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DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 1
·121054
·
IF 7.2
Qi-Rui Zhang,Yu-Long Wang,Zhi-Hao Deng,You-Long Chen,Si-Jing Ding,Liang Ma
Semiconductor junction shows greatly potential in photocatalysis due to the unique merits for charge separation, however the photocatalytic efficiency is still limited by the monotonous charge separation pathway and weak light absorption. Herein, multichannel charge separation driven by multiple internal electric fields (IEFs) has been proposed in ReS 2 /CoS x /CdS hollow nanostructures, which greatly improves the photocatalytic activity. By growing CdS nanoparticles on hollow ReS 2 /CoS x hybrids, the ReS 2 /CoS x /CdS ternary hybrids with Schottky junction (ReS 2 -CoS x ), type-I junction (ReS 2 -CdS), and Ohmic contact (CoS x -CdS) were constructed. The unique hollow structure and bandgap excitation endow the ReS 2 /CoS x /CdS hybrids with high light-harvesting efficiency across a broad spectrum from ultraviolet (UV) to near-infrared (NIR). Ultrafast transient absorption (TA) characterization elucidates the multi-interface charge transfer mechanisms, which involve electron transfer from CoS x to ReS 2 , from CdS to ReS 2 , from CdS to CoS x , and a possible sequential transfer from CdS to CoS x and then to ReS 2 . These pathways significantly prolong the lifetime of charge carriers and suppress charge recombination. Concurrently, the multiple IEFs facilitate charge separation and prevent back-transfer, further inhibiting charge recombination. The ReS 2 /CoS x /CdS hollow nanostructures exhibit remarkably enhanced photocatalytic activity, which is 15.00 and 15.36 times of pure CdS and ReS 2 , respectively, under visible light irradation (λ > 420 nm) with Na 2 S/Na 2 S 2 O 3 as the hole sacrificial agent. This study provides valuable insights for designing efficient photocatalysts based on semiconductor junction, and the synthesized materials show promising potential for solar-driven energy conversion applications.
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高影响因子
Nano Energy
·
2019
·
IF 15.548
Nan Wei,Jingsheng Cai,Ruochen Wang,Menglei Wang,Wei Lv,Haina Ci,Jingyu Sun,Zhongfan Liu
Lithium–sulfur battery is amongst the most promising next-generation energy storage technology owing to their high theoretical capacity and energy density . Nevertheless, the notorious shuttle effect of lithium polysulfides (LiPSs) seriously impedes its practical applications. Here, we report an all-CVD approach to realize the direct growth of ReS 2 @N-doped graphene (NG) heterostructure , which serves as an ultralight high-performance interlayer for elevated LiPS regulation via easy transfer onto the commercial separator. In contrast to the traditional interlayers constructed via vacuum filtration of nanostructured materials that inevitably increase the thickness and weight of the separator, our all-CVD-enabled ReS 2 @NG film possesses an area of 15 mm × 100 mm, a thickness of ~0.5 μm and a negligible areal weight of 80–90 μg cm −2 . Benefiting from the two-dimensional (2D) vertically-erected nanostructure , adsorptive ReS 2 -conductive NG interface, and favorable electrical conductivity , thus-derived ReS 2 @NG interlayer readily enhances reaction kinetics for LiPS conversion and boosts the reutilization of trapped LiPS whilst guaranteeing smooth transportation of lithium ions . Accordingly, an initial discharge capacity of 854 mAh g −1 with an average capacity decay of 0.064% per cycle after 800 cycles can be harvested at 2.0 C. Even at a high sulfur loading of 6.4 mg cm −2 , an initial areal capacity of 6.1 mAh cm −2 can be gained, which still retains 5.8 mAh cm −2 after 40 cycles at 0.1 C. This work is anticipated to shed light upon the construction of CVD-enabled versatile 2D heterostructures for enriching the interlayer design with multifunctionality and cost-effectiveness.
研究领域:
材料科学
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电化学
·
能源存储
·
纳米材料
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界面工程
·
电池技术
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DOI
高影响因子
NANOTECHNOLOGY
·
2019
·Vol. 30
·期 18
·184001
·
IF 3.399
Qihua Jing,Hao Zhang,Hao Huang,Xingce Fan,Yumeng Zhang,Xiangyu Hou,Qingyu Xu,Zhenhua Ni,Teng Qiu
Rhenium disulfide (ReS2) is an interesting kind of transition metal dichalcogenide (TMD) because of its thickness-independent and suitable direct-bandgap structure, which could enable highly efficient solar-energy conversion efficiency. Here, we demonstrate an ultrasonic liquid exfoliation technique in combination with grinding to produce high quality ReS2 nanosheets (NSs) on a large scale. After combination with TiO2 nanoparticles, the co-catalytic performance of TiO2@ReS2 nanocomposites is investigated, which presents dramatically enhanced degradation activity of organic pigments under sunlight illumination in comparison with pure TiO2 nanoparticles. The underlying mechanism of enhanced photocatalytic activity can be attributed to improved separation efficiency of photogenerated electron–hole pairs in TiO2@ReS2 nanocomposites, which is confirmed by photoluminescence analysis and photoelectrochemical measurements. Our results demonstrate that the layered ReS2 NS is a promising two-dimensional supporting platform for photocatalysis and moreover it could also provide a new perspective on TMDs co-catalyst.
研究领域:
材料科学
·
纳米技术
·
光催化
·
能量转换
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DOI
高影响因子
Materials Today Chemistry
·
2026
·
IF 7.4
Guorong Liu,Fangyu Zhang,Wendan Yang,Xiaofeng Sun,Yanyan Dai,Jinyuan Ma,Zao Yi
Ni 0.9 Cu 0.1 Co-LDH/15ReS 2 hollow nanocages was constructed. • The introduction of Cu into NiCo-LDH not only enhanced visible light absorption but also effectively suppresses the recombination of photogenerated carriers. • The BEF formed at the interface between Ni 0.9 Cu 0.1 Co-LDH and ReS 2 can facilitate the spatial separation and directional migration of photogenerated carriers. • The mechanism is explained through the complementary combination of experimental analysis and theoretical calculation. • Outstanding operational stability. The pursuit of efficient and stable photocatalysts for solar-driven hydrogen evolution is critical to addressing the global energy crisis. Herein, a novel S-scheme heterojunction is constructed by integrating ReS 2 particles onto Cu-doped NiCo-layered double hydroxide (Ni 1-x Cu x Co-LDH) hollow nanocages, synthesized via an “etch and grow” method using ZIF-67 as a template. The optimized Ni 0.9 Cu 0.1 Co-LDH/15ReS 2 composite achieves a hydrogen precipitation rate of 4.17 mmol g −1 h −1 under the illumination of visible light, which is 5.48-fold and 3.11-fold higher than those of pristine NiCo-LDH and ReS 2 , respectively. This performance improvement is attributed to the synergy of three key factors. (i) Cu doping effectively modulates the electronic structure of the LDH, introduces defect levels to narrow the bandgap (from 2.1 eV to 1.9 eV) for enhanced visible light absorption, and serves as charge balancer to suppress carrier recombination. (ii) The formation of an ordered heterostructure between Ni 0.9 Cu 0.1 Co-LDH and ReS 2 at their interface creates a built-in electric field that promotes the spatial separation and directional migration of photogenerated charge carriers, markedly reduces the likelihood of their recombination. (iii) The heterojunction exhibits a large specific surface area (109.23 m 2 /g), which effectively exposes more catalytic active sites and prolongs the light propagation path, thereby enhancing surface reaction efficiency and light utilization. The composite also exhibits outstanding stability, retaining 96% of its initial activity after four photocatalytic cycles. Combined theoretical calculations and experimental analyses confirm that the well-matched band alignment and robust interfacial interaction enable effective spatial separation of photogenerated carriers while preserving strong redox potentials. The work demonstrates a very promising strategy for designing high performance LDH-based S-scheme heterojunctions toward sustainable solar-to-chemical energy conversion.
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高影响因子
Molecular Catalysis
·
2025
·
IF 4.9
Wenhua Fu,Nan Li,Qian Dong,Gang Zhao,Shirui Zhang,Yi Wu,Kai Zhao,Jiangquan Ma
Photocatalytic production of hydrogen peroxide (H 2 O 2 ) and carbon dioxide (CO 2 ) reduction has been the hotspots in the field of chemical industry for a long time. CdIn 2 S 4 is widely used due to its excellent thermal stability and significant absorption in the visible light region. However, the low efficiency of photogenerated charge separation hinders its practical application. In this work, Z-scheme heterojunction ReS 2 /CdIn 2 S 4 was successfully synthesized by hydrothermal method and applied for the first time in photocatalytic production of H 2 O 2 and CO 2 reduction. The experimental results show that compared with pure CdIn 2 S 4 or pure ReS 2 , the photocatalytic performance of ReS 2 /CdIn 2 S 4 is greatly improved. When the loading amount of ReS 2 is 12 wt. % of CdIn 2 S 4 , it exhibits the optimal photocatalytic H 2 O 2 productivity of 361.8 μmol h -1 g -1 and the optimal yields of CO and CH 4 of 89.84 and 5.03 μmol h -1 g -1 respectively in pure water. The Z-scheme heterojunction of ReS 2 /CdIn 2 S 4 was determined by XPS and the band structure. In addition, two possible reaction pathways involving O 2 - and 1 O 2 were analyzed for the H 2 O 2 production by RS/CIS and the pathway of carbon dioxide reduction reaction can be speculated through in-situ DRIFTS.
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高影响因子
Materials Horizons
·
2023
·Vol. 11
·期 3
·768-780
·
IF 13.3
Guiyang Yu,Ke Gong,Xiang Li,Luyang Guo,Xiyou Li,Debao Wang
The achievement of dual-functional photocatalytic technology requires a photocatalyst with accelerated charge flow and purposeful active-site arrangement. In this study, we developed an oriented embedding strategy to induce ReS2 growth at the S vacancy in twin-crystal Zn0.5Cd0.5S solid solution (Sv-ZCS), obtaining an atomic-level heterostructure (ReS2/Sv-ZCS). The electronic structure calculations demonstrate that the charge density of the Zn atom around the S vacancy is higher than for other Zn atoms and the introduced S vacancy establishes a high-speed channel for electron transport via formed Zn–S–Re bonds at the interface between ReS2 and Sv-ZCS. Photogenerated electrons and holes gathered on Re atoms and Sv-ZCS, respectively, which achieves spatial charge separation and separated arrangement for redox sites. As a result, the optimized ReS2/Sv-ZCS heterostructure possesses high efficiency of electron injection (2.6-fold) and charge separation (8.44-fold), as well as excellent conductivity capability (20.16-fold). The photocatalytic performance of the ReS2/Sv-ZCS composite exhibits highly improved dual-functional activity with simultaneous H2 evolution and selective oxidation of benzyl alcohol. The reaction rate of benzaldehyde and H2 evolution reaches 125 mmol gcat−1 h−1 and 159 mmol gcat−1 h−1, which is the highest efficiency achieved so far for simultaneous coproduction of H2 fuel and organic chemicals on ReS2-based composites. This work enriches the application of ReS2-modified composites in a dual-functional photoredox system and also gives insight into the role of defects in electronic structure modification and activity improvement.
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PubMed
高影响因子
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