CHEMICAL ENGINEERING JOURNAL
·
2018
·
IF 6.735
Yu Liu,Haoting Niu,Wei Gu,Xiaoyu Cai,Baodong Mao,Di Li,Weidong Shi
Exploration of highly active and noble-metal-free photocatalysts for high-efficiency photocatalytic water splitting is of great importance. Herein, a facile and effective in-situ hydrothermal method has been developed for preparation of CdS/MoS 2 heterostructures with a unique hollow microbox morphology for visible-light-driven water splitting into H 2 . The influence of MoS 2 is systematically investigated in terms of optical properties and photocatalytic activity of the CdS/MoS 2 microboxes by varying the concentration of sodium molybdate. Under visible-light irradiation (λ ≥ 420 nm), the CdS/MoS 2 microboxes exhibit superior photocatalytic H 2 evolution activity (1.36 mmol/g/h) compared to pure CdS microboxes (0.04 mmol/g/h), corresponding to an apparent quantum yield of 14.5% at 420 nm. Photocatalytic mechanism study proves that the MoS 2 nanosheets can serve as a co-catalyst and electron acceptor, for the effective promotion of electron transfer and separation of photogenerated charge carriers from CdS to further stimulate the surface H 2 evolution kinetics. Furthermore, the well-defined interior voids, low density and shell permeability of the hierarchical CdS/MoS 2 microboxes also contribute to the improvement of the photocatalytic performance.
研究领域:
材料科学
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光催化
·
氢能
·
纳米材料
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环境科学
✓ 已验证
DOI
高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
·
2021
·
IF 2.495
Junjie Zhou,Xu Meng,Jiaying Yan,Xiang Liu
Since dimethylamine-borane ($ 463/kg) is much cheaper than ammonia borane ($ 13,921/kg), the hydrolysis of dimethylamine-borane catalyzed by transition metal nanocatalysts has long been proposed as a viable opportunity for hydrogen evolution, but it often required noble metals nanocomposites, such as Pt, Rh and Ru. Herein, we first report the ultrafine non-noble metal nanoparticles supported on MoS 2 nanosheet (including Fe/MoS 2 , Co/MoS 2 , Ni/MoS 2 and Cu/MoS 2 ) for the H 2 evolution from hydrolysis of dimethyl amine-borane (DMAB). Among them, Co/MoS 2 is found to be more efficient than others for the H 2 evolution, with the TOF of 374 mol (H2) •mol cat −1 •h −1 . Kinetic isotopic experiment and the tandem reaction have confirmed that H 2 evolution by using H atoms in water.
研究领域:
催化化学
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氢能
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纳米材料
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化学储氢
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无机化学
✓ 已验证
DOI
高影响因子
FUEL
·
2026
·
IF 7.5
Xuanyu Lin,Yiming Qin,Xinyu Feng,Hanzhen Liu,Zhenhang Lu,Xin Tang
CO 2 as a rich source of carbon can provide an alternative route to produce value-added chemicals. Electrocatalysis is one of the most promising approaches to convert CO 2 captured from the atmosphere into valuable chemicals. However, the CO 2 molecule is relatively stable and requires a large amount of energy to activate CO 2 for conversion. We develop a new creative type of solid-state CO 2 fuel cell that can generate high-value-added chemicals through electrochemical reduction of CO 2 without external electrical energy input while achieving self-power generation, operating in the medium temperature range of 400–700 ℃. This study demonstrates a fuel cell operating at 570 °C, which achieves a current density of 686.0 A·m −2 and a power density of 98.8 W·m −2 . Under these conditions, the fuel cell achieved a product formation rate of 140.0 μmol·g cat −1 ·h −1 . The system’s operational parameters enable its integration into combined heat and power (CHP) generation, simultaneously facilitating CO 2 conversion, thereby aligning with sustainable energy and emissions reduction strategies.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.7
Fengqin Wang,Xinyue Ren,Yang Wang,Muhammad Tayyab,Zhongliao Wang,Sugang Meng
The photocatalytic coupling of selective phenylcarbinol oxidation with hydrogen evolution has attracted considerable attention as a promising dual-functional reaction system. Herein, a lattice-matched 2D/3D NiS/CdIn 2 S 4 (NiS/CIS) Schottky heterojunction is rationally designed for efficient dual-functional photocatalysis under visible light. Structural analyses confirm the uniform deposition of NiS nanosheets on octahedral CIS with a lattice mismatch below 5%, ensuring coherent interfacial contact. The optimal 3% NiS/CIS composite exhibits exceptional hydrogen and benzaldehyde production rates of 2636.4 and 2717.6 μmol g −1 h −1 , respectively—representing enhancements of 39.7 and 38.0 times over pristine CIS. The catalyst also demonstrates remarkable stability, retaining over >99.0% activity after six cycles. Mechanistic studies reveal that the Schottky junction facilitates spatial separation of photogenerated carriers: electrons migrate to NiS, prolonging charge carrier lifetimes and lowering the hydrogen evolution overpotential, while holes accumulate on CIS that facilitated phenylcarbinol adsorption to drive selective phenylcarbinol oxidation via a carbon-radical pathway. This work provides a viable approach for designing efficient bifunctional photocatalysts through lattice-matched interface engineering.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2018
·
IF 11.698
Donglai Pan,Zhiya Han,Yingchun Miao,Dieqing Zhang,Guisheng Li
Highly dispersed and thermally stable TiO 2 quantum dots (TiO 2 -QDs) were achieved in the pore channels of SiO 2 foams with large pore size (14–20 nm) via in-situ hydrolysis of Ti-alkoxide. Owing to the anchoring effect between TiO 2 -QDs and the pore-wall of SiO 2 foam, both the TiO 2 phase transformation from anatase to rutile and the aggregation of TiO 2 -QDs were effectively prohibited. The anatase TiO 2 -QDs anchored on the surface of silica foams could be well maintained with a ultrafine crystal size (<7.0 nm) even after high temperature (up to 1000 °C) calcination in air, suggesting a high thermal stability. The sample of TiO 2 -QDs/SiO 2 photocatalysts (molar ratio of Ti/Si = 60%, 900 °C) still exhibited a high H 2 evolution rate (HER, 10399 μmol g −1 h −1 ) for reducing water with a quantum efficiency of 17.8% under UV light irradiation (λ = 365 nm), slightly lower than that of the sample treated at 500 °C. In the absence of the silica foam, the pure TiO 2 crystals calcined at 900 °C crystals nearly cannot exhibit an obvious HER value. Such excellent photocatalytic hydrogen evolution performance was ascribed to the short electron-transfer distance, high anatase crystallinity, uniform dispersity in silica foam, and excellent stability of the TiO 2 -QDs. This proposed route offered an effective platform for fabricating highly active metal oxide QDs with high thermal stability, greatly prolonging the recyclability.
研究领域:
材料科学
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光催化
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纳米技术
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能源材料
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无机化学
✓ 已验证
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2025
·
IF 3.9
Peiyao Niu,Tianyou Li,Qizheng Zhao,Yongchao Sun,Jingfa Zhang,Fangxu Fan,Gaohong He,Canghai Ma
Mixed matrix membranes (MMMs) integrate the benefits of organic polymer membranes with porous inorganic fillers, leading to an enhancement in both gas permeability and separation selectivity. As a commonly used filler, ZIF-8 exhibits promise in enhancing the gas separation performance of MMMs. However, further improving the gas selectivity of ZIF-8-based MMMs remains a challenge. To improve the gas selectivity of ZIFs, we synthesized ZIF-BI via the “mixed linker method” using a bulky benzimidazole ligand, which restricts imidazole ring twisting and enhances gas selectivity. At a 40 wt % ZIF-BI loading, the ZIF-BI/6FBDA MMM exhibited CO2 and H2 permeabilities of 25.7 and 49.6 Barrer, respectively. Additionally, the CO2/CH4 and H2/N2 selectivities reached 151.4 and 261.1, both transcending the 2008 Robeson upper bounds. This work provides an innovative way to make ZIF materials and high-performance gas separation membranes, offering solutions for CO2 capture and H2 separation.
研究领域:
材料科学
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气体分离
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膜技术
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碳捕集与封存
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氢能
✓ 已验证
产品关联
DOI
高影响因子
Nature Communications
·
2020
·Vol. 11
·期 1
·1-13
·
IF 12.121
Zhao Fulai,Feng Yiyu,Wang Yu,Zhang Xin,Liang Xuejing,Li Zhen,Zhang Fei,Wang Tuo,Gong Jinlong,Feng Wei
The discovery of graphene and graphene-like two-dimensional materials has brought fresh vitality to the field of photocatalysis. Bandgap engineering has always been an effective way to make semiconductors more suitable for specific applications such as photocatalysis and optoelectronics. Achieving control over the bandgap helps to improve the light absorption capacity of the semiconductor materials, thereby improving the photocatalytic performance. This work reports two-dimensional −H/−OH terminal-substituted siligenes (gersiloxenes) with tunable bandgap. All gersiloxenes are direct-gap semiconductors and have wide range of light absorption and suitable band positions for light driven water reduction into H 2 , and CO 2 reduction to CO under mild conditions. The gersiloxene with the best performance can provide a maximum CO production of 6.91 mmol g −1 h −1 , and a high apparent quantum efficiency (AQE) of 5.95% at 420 nm. This work may open up new insights into the discovery, research and application of new two-dimensional materials in photocatalysis.
研究领域:
材料科学
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光催化
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半导体物理
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能源材料
✓ 已验证
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2020
·
IF 4.939
Ling Wang,Wenzong Liu,Thangavel Sangeetha,Zechong Guo,Zhangwei He,Chuan Chen,Lei Gao,Aijie Wang
High overpotential and soaring prices of the cathode electrode are the bottlenecks for the development of microbial electrolysis technology for hydrogen production . In this study, a novel one-step electrodeposition method has been attempted to fabricate electrodeposited cathodes in situ growth of Ni–Co–S, Ni–S, Co–S catalyst on nickel foam (NF) to reduce the overpotential of electrodes. Finally, a uniform nanosheet with a high specific surface area and more active sites is formed on the NF surface, resulting in a lower overpotential than plain NF. At 0.8 V, the Co–S/NF cathode produces a favorable 42% increase in hydrogen yield (0.68 m 3 ·m −3 ·d −1 ), 40% upsurge in current density (10.6 mA/cm 3 ) and 39% rise of cathodic recovery rate (58.0 ± 3.2%) than bare NF, followed by Ni–Co–S/NF and Ni–S/NF cathode. All the electrodeposited electrodes demonstrate enhanced current density and reduced electron losses, thereby achieving efficient hydrogen production . These innovative varieties of electrodes are highly advantageous as they are relatively inexpensive and easy to manufacture with great potential in reducing costs and further real time application in large scale.
研究领域:
生物电化学
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材料科学
·
可再生能源
✓ 已验证
DOI
高影响因子
Surfaces and Interfaces
·
2025
·
IF 6.3
Ying-Jiao He,Liang-Hong Shu,Yan Xiong,Qun-Zeng Huang
Development of highly-efficient heterostructured photocatalysts capable of fully utilizing full solar spectrum has emerged as a focal point in photocatalytic H 2 evolution from water splitting. Herein, Mn 0.2 Cd 0.8 S/MoSe 2 composite was successfully constructed by attaching full-spectrum responsive MoSe 2 nanospheres on surface of Mn 0.2 Cd 0.8 S polyhedra via in-situ hydrothermal process. The optimal Mn 0.2 Cd 0.8 S/MoSe 2 -5wt% composite photocatalyst yielded the H 2 evolution rate of 34.31 mmol g –1 h –1 under full-spectrum light, significantly surpassing the activities obtained under near-infrared (NIR), ultraviolet (UV), visible (Vis), Vis-NIR and UV-Vis light alone. This outstanding property could be attributed to the synergetic effects of p−n heterojunction and photothermal effect, effectively accelerating interfacial charge transfer, elevating reaction system's temperature and expediting surface reaction, thereby promoting the photocatalytic reaction of Mn 0.2 Cd 0.8 S. This study offers a valuable perspective on utilizing MoSe 2 to construct an efficient photothermal-assisted photocatalysis system.
研究领域:
材料科学
·
光催化
·
可再生能源
·
纳米材料
·
氢气制备
✓ 已验证
产品关联
DOI
高影响因子
INORGANIC CHEMISTRY
·
2023
·
IF 4.6
Ning Li,Wenwen Zhao,Linping Li,Yangqin Gao,Lei Ge
Photocatalysts with hollow structures have drawn great interest owing to their high specific surface area, which can enhance the photocatalytic performance. Herein, we designed the hollow cubic Cu2–xS@Ni–Mo–S nanocomposites by vulcanizing from the Cu2O template and loading the Ni–Mo–S lamellas. The Cu2–xS@Ni–Mo–S composites greatly improved the photocatalytic hydrogen performance. Among them, Cu2–xS–NiMo-5 achieved the optimal photocatalytic rate of 1326.07 μmol/g h, which is approximately 3.85 times higher than that of hollow Cu2–xS (344 μmol/g h) and had good stability for 16 h. The enhanced photocatalytic property was attributed to the metallic behavior of bimetallic Ni–Mo–S lamellas and the LSPR (localized surface plasmon resonance) effect of Cu2–xS. The bimetallic Ni–Mo–S can effectively capture the photogenerated electrons and quickly transfer-diffuse to produce H2. Meanwhile, the hollow Cu2–xS not only provided many more active sites to take part in the reaction but also introduced the LSPR effect to increase the solar utilization. This work provides valuable insights into the synergistic effect of using non-precious metal co-catalysts and the LSPR materials to assist in the photocatalytic hydrogen evolution.
研究领域:
材料化学
·
光催化
·
能源科学
·
纳米材料
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半导体物理
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可再生能源
·
表面科学
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2017
·
IF 7.504
Zhiyong Mao,Jingjing Chen,Yanfang Yang,Dajian Wang,Lijian Bie,Bradley D. Fahlman
Novel g-C3N4/CoO nanocomposite application for photocatalytic H2 evolution were designed and fabricated for the first time in this work. The structure and morphology of g-C3N4/CoO were investigated by a wide range of characterization methods. The obtained g-C3N4/CoO composites exhibited more-efficient utilization of solar energy than pure g-C3N4 did, resulting in higher photocatalytic activity for H2 evolution. The optimum photoactivity in H2 evolution under visible-light irradiation for g-C3N4/CoO composites with a CoO mass content of 0.5 wt % (651.3 μmol h–1 g–1) was up to 3 times as high as that of pure g-C3N4 (220.16 μmol h–1 g–1). The remarkably increased photocatalytic performance of g-C3N4/CoO composites was mainly attributed to the synergistic effect of the junction or interface formed between g-C3N4 and CoO.
研究领域:
材料科学
·
光催化
·
能源化学
·
纳米科技
·
可持续能源
✓ 已验证
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2022
·
IF 7.139
Rui Li,Qiongke Shi,Luyang Zuo,Yingjun Chen,Wenqiang Li,Huitao Fan,Bo Li,Liya Wang
The shortage of fossil energy has become a growing global concern. It is particularly important to make full use of the infinite solar energy resources, and transform them into sustainable and clean energy. The development of hydrogen energy has become a feasible solution to solve the energy shortage problem. The preparation of photocatalysts featuring efficient charge transfer channels and high hydrogen production activity provides a pathway for the development of hydrogen energy. In this paper, we report for the first time the direct assembly of 2D ZnIn 2 S 4 (ZIS) nanosheets on the surface of CoTiO 3 (CTO). The synthesized CoTiO 3 /ZnIn 2 S 4 (CTO/ZIS) photocatalyst features a direct Z-scheme charge transfer channel, which enhances the separation rate of photogenerated carriers, and accelerates the photocatalytic H 2 evolution (PHE) rate. Without the assistance of any co-catalyst, the PHE rate of prepared CoTiO 3 /ZnIn 2 S 4 was as high as 5.21 mmol g −1 h −1 . Moreover, the H 2 evolution rate of CoTiO 3 /ZnIn 2 S 4 almost did not decrease significantly after four consecutive 4 h cycles. This investigation provides a valuable approach for the exploitation of novel and efficient Z-scheme photocatalysts in the application of solar energy to hydrogen energy conversion.
研究领域:
材料科学
·
物理化学
·
能源化学
·
光催化
·
纳米材料
·
可再生能源
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）