ACS Applied Nano Materials
·
2025
·
IF 5.5
Jin Li,Zhujun Chen,Xin Li,Bingshuang Li,Pengxuan Wu,Xiaoxi Huang
Indium sulfide-based electrocatalysts often suffer from the reduction of In3+ to In0 species in the electrocatalytic CO2 reduction reaction (CO2RR), and this dynamic transformation leads to undesired hydrogen evolution reaction. Promoting the stability of high-valent In3+ species under operating conditions is a challenging but important task for maintaining their excellent electrocatalytic activity. In this work, In2S3 electrocatalysts with controllable crystallinity are synthesized by a hydrothermal reaction at a tunable temperature. The low-crystalline In2S3-1 exhibits more abundant defective and amorphous/crystalline interface structures compared with the high-crystalline ones, thus endowing the low-crystalline In2S3-1 with a higher formate faradaic efficiency (FEformate) of 91.6% at −1.45 V vs RHE in the H-type cell compared with the high-crystalline In2S3-3 (FEformate = 79.3%). This improved electrocatalytic activity can be attributed to its abundant defect structures and amorphous/crystalline interface structures with robustly high-valent In3+ species under the operating conditions. In situ attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy results reveal the *OCHO reaction pathway. Density functional theory (DFT) calculations indicate that defective structures, such as sulfur vacancies, play an important role in lowering the energy barrier for the key intermediate *OCHO formation. This work provides important insight into defect engineering to promote CO2RR.
研究领域:
材料科学
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电化学
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环境科学
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产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Jianhui Zhu,Linchao Zeng,Yumin Song,Feng Peng,Yanyi Wang,Tingshu He,Libo Deng,Peixin Zhang
Room-temperature sodium-sulfur (RT Na-S) batteries have been attracting enormous interests due to their low-cost, high capacity and environmental benignity. However, the shuttle effect and the sluggish electrochemical reaction activity of sodium polysulfides (NaPSs) seriously restrict their practical application. To solve these issues, we rationally designed an advanced Sn-doped In 2 S 3 /S/C cathode for RT Na-S batteries by magnetron sputtering in this work, which exhibited a high reversible capacity (1663.5 mAh g −1 at 0.1 A g −1 ) and excellent cycling performance (902.9 mAh g −1 after 50 cycles). The in situ electrochemical impedance spectroscopy indicated that the Sn-doped In 2 S 3 coating can accelerate charge-transfer kinetics and facilitate the diffusion of Na + . Furthermore, theoretical calculation revealed that doping of Sn into In 2 S 3 can reduce the energy band gap, thus accelerating the electron transfer and promoting the electrochemical conversion of active species. It is demonstrated that adjusting the electronic structure is a reliable method to improve the electrocatalytic effect of catalyst and significantly improve the performance of S cathode in RT Na-S batteries.
研究领域:
材料科学
·
电化学
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DOI
PubMed
高影响因子
Industrial Chemistry & Materials
·
2023
·
IF 0
Yu Chen,Chang-Long Tan,Jing-Yu Li,Ming-Yu Qi,Zi-Rong Tang,Yi-Jun Xu
Photocatalytic hydrogen (H2) production coupled with selective oxidation of organic compounds into high-value-added organic intermediates has expansive prospects in the utilization and transformation of solar energy, which meets the development requirements of green chemistry. In this work, high-efficiency hole cocatalyst PdS-decorated In2S3 flower-like microspheres are fabricated for the effective visible-light-driven C–N coupling of amines to imines coupled with H2 evolution. Owing to the establishment of the internal electric field, which further boosts the transfer of photoexcited holes to PdS, PdS–In2S3 exhibits distinctly enhanced photocatalytic redox performance, which is 39.8 times higher for H2 and 14.3 times higher for N-benzylidenebenzylamine than that of the blank In2S3, along with high selectivity and stability. Furthermore, the practicability of dehydrogenation coupling of various aromatic amines to the corresponding C–N coupling products on PdS–In2S3 has been demonstrated and a plausible reaction mechanism has been proposed. This work is anticipated to stimulate further interest in establishing an innovative photoredox platform for selective organic synthesis coupled with H2 evolution in a green and sustainable way.
研究领域:
材料科学
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化学工程
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环境科学
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DOI
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2021
·
IF 19.503
Huan Chai,Lili Gao,Peng Wang,Feng Li,Guowen Hu,Jun Jin
The application of hematite(α-Fe 2 O 3 )-based photoanodes in photoelectrochemical (PEC) water oxidation has been hampered by disgusting charge recombination and difficult carrier migration. Herein, we modified indium sulfide (In 2 S 3 ) nanoparticles on the surface of fluorine-doped α-Fe 2 O 3 (F-Fe 2 O 3 ) nanorods . The In 2 S 3 /F-Fe 2 O 3 heterostructure bonded by S-O chemical bond shows a superior photocurrent density of 2.21 mA cm −2 at 1.23 V versus reversible hydrogen electrode (around 3.45 times higher than that of pristine α-Fe 2 O 3 ). In-depth investigations show that In 2 S 3 /F-Fe 2 O 3 has significantly increased donor density and decreased charge transfer resistance. Simultaneously, In 2 S 3 decorated with S-O bond could reduce the surface defect states. Further studies of energy band location reveal the formation of type-Ⅱ heterojunction between In 2 S 3 and F-Fe 2 O 3 . The unique heterostructure provides a powerful driving force for charge separation and transport, resulting in satisfactory bulk phase and surface separation efficiency. This work provides ideas for the design and study of multicomponent photoanodes.
研究领域:
材料科学
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光催化
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能源转换
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产品关联
DOI
高影响因子
ACS Applied Nano Materials
·
2019
·
IF 0
Hui Liang,Bin Guo,Jing Huang,Ting Feng,Wei Wang,Bohua Dong,Lixin Cao
A series of Mn2xIn2(1–x)S3 (x < 0.5) nanoflower solid solutions (NSS) were synthesized by a simple one-step hydrothermal method using l-cysteine as S source and chelating reagent. The Mn2xIn2(1–x)S3 NSS exhibit excellent hydrogen evolution performance compared with pure In2S3. In particular, the Mn0.4In1.6S3 nanoflower solid solution exhibits the best photocatalytic activity with a hydrogen evolution rate of up to 3570 μmol/(g h) under visible-light irradiation even without any noble metal or cocatalysts, which is about 22 times as high as the pure In2S3 dose, and it shows a favorable stability in catalytic and antiphotocorrosion properties. The apparent quantum efficiency of Mn0.4In1.6S3 NSS was 12.9% at 420 nm. The excellent photoactivity of Mn0. 4In1.6S3 NSS is mainly related to faster separation of photogenerated electron–hole pairs and the band-gap structures. Additionally, the Mn0.4In1.6S3 NSS possesses another active site of Mn for hydrogen evolution compared with pure In2S3, and density functional theory (DFT) simulations for the H binding free energy on active site (ΔGH*) are performed to gain the fundamental insight into the role of Mn in Mn0. 4In1.6S3 NSS. Furthermore, because of the Mn active site, the Mn0.4In1.6S3 NSS has a very appealing ΔGH* of 0.74 eV, which is closer to zero than In as active sites in both Mn0.4In1.6S3 NSS (−3.83 eV) and pure In2S3 (−4.29 eV). The DFT-based first-principles calculations clearly shows that hydrogen adsorbed at different reaction sites with Mn and In have distinctly different free energies which further impact on hydrogen evolution performance. The research lights a new insight for photocatalytic hydrogen evolution, thus broadening routes for designing photocatalytic materials with multiple reaction sites for enhanced photocatalysis.
研究领域:
材料科学
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能源化学
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计算化学
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产品关联
DOI
Nature Communications
·
2025
·Vol. 16
·期 1
·1-9
·
IF 15.7
Wang Kai,Hu Yanjun,Liu Xiufan,Li Jun,Liu Bin
Strain engineering offers an attractive strategy for improving intrinsic catalytic performance of a heterogeneous catalyst. Herein, we successfully create strain into layered indium sulfide (In 2 S 3 ) at atomic scale via introducing oxygen coordination and sulfur vacancy using a wet-chemistry method. The atomically strained In 2 S 3 exhibits greatly enhanced CO 2 photoreduction performance, achieving a CO 2 to CO conversion rate of 5.16 μmol g catalyst −1 h −1 under visible light illumination in ambient air. In-situ spectroscopic measurements together with theoretical calculations indicate that the atomically strained In 2 S 3 features lattice disordered defects on surface, which provides rich uncoordinated catalytic sites and induces structural distortion, resulting in modified band structure that promotes CO 2 adsorption/activation and boosts photogenerated charge carriers’ separation during CO 2 photoreduction. This work provides a new approach for the rational design of atomically strained photocatalysts for CO 2 reduction in ambient air.
研究领域:
材料科学
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环境科学
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催化化学
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产品关联
DOI
PubMed
高影响因子
Energy Materials
·
2024
·Vol. 4
·期 3
·N
·
IF 11.8
Ming Zhang,Pingping Yang,Wenyan Tao,Xiangui Pang,Youyi Su,Pai Peng,Lin Zheng,Runhan Li,Shuxiang Wang,Jing Huang,Li Zou,Jiale Xie
Due to the excellent stability of titanium dioxide (TiO2), there is still value in improving its solar-to-hydrogen conversion efficiency through tremendous attempts. Metal sulfides with a narrow bandgap are good candidates to broaden the ultraviolet light absorption of TiO2 into the visible light region. However, sulfides suffer from the photocorrosion issue, leading to poor stability. Herein, a type-II heterojunction of TiO2/In2S3 is fabricated by a hydrothermal method, and a NiFe Prussian blue analog (NFP) overlayer is deposited on the surface of TiO2/In2S3 through a chemical bath deposition technique. Under AM1.5G illumination, a photocurrent density of 1.81 mA cm-2 can be obtained with NFP coated TiO2/In2S3 at 1.23 V vs. reversible hydrogen electrode, which is six folds of the photocurrent of TiO2. This photocurrent value can reach up to about 90% of its theoretical photocurrent. During a 12 h stability test, the TiO2/In2S3/NFP photoanode exhibits a high photocurrent retention of 95.17% after an initial transient decrease. The type-II heterojunction of TiO2/In2S3 can efficiently boost the charge separation because of the built-in electric field and enhance the visible-light absorption because of the narrow bandgap of In2S3. A NFP overlayer serves as the cocatalyst for water oxidation reaction due to its valence changes of nickel and iron elements. NFP cocatalyst can rapidly extract the photogenerated holes from In2S3 and then improve the charge separation/injection efficiencies. Thanks to chemical stability of NFP, its coating can also make In2S3 resistant to photocorrosion by physically separating the photoanode from the electrolyte. Therefore, there is a good synergistic effect between the TiO2/In2S3 heterojunction and NFP cocatalyst. This work provides some crucial insights for the interface engineering and material design in photoelectrochemical systems.
研究领域:
材料科学
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光化学
·
可再生能源
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2022
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IF 6.371
Hengjia Shao,Xiangmin Feng,Yipeng Liu,Yong Zhang,Linxuan Han,Yang Gao,Na Wang,Xintao Zhang,Fuyi Jiang,Caifu Dong
Indium sulfide has been proved to be a high-capacity anode material for sodium-ion batteries, but severe volume changes and low electrical conductivity limit its practical electrochemical performance . Based on this, graphene (RGO)-loaded In 2 S 3 nanosheets array composites (In 2 S 3 /RGO) are synthesized by a simple reflux method to enhance charge transfer and ion diffusion kinetics as well as the structural stability of electrodes. By optimizing the amount of RGO, In 2 S 3 /RGO exhibits a high specific capacity of 450 mAh g −1 at 2 A g −1 after 500 cycles with a capacity fading of 0.04% per cycle (from 2nd to 500th) and remarkable rate performance of 460 mAh g −1 at 12 A g −1 . The XRD and HRTEM analysis indicates that In 2 S 3 /RGO is based on a conversion mechanism for energy storage. Furthermore, the In 2 S 3 /RGO//Na 3 V 2 (PO 4 ) 3 full cell is successfully fabricated. The simple and efficient synthesis method and the excellent sodium storage properties offer great prospects for the practical application of In 2 S 3 /RGO.
研究领域:
材料科学
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电化学
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能源存储
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纳米技术
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电池工程
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DOI
高影响因子
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
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2022
·
IF 4.383
Yi Zhou,Zhiyue Chen,Jiaxin Li,Minghui Xiang,Yinghong Zhou,Jiangtao Niu,Jin Zhang
Design and construction of a heterojunction structured photocatalyst with efficient electron transfer is of great significance. In this work, we prepared a unique Z-scheme Ag/Agln 5 S 8 /BiVO 4 photocatalyst of which BiVO 4 has highly exposed (040) crystal facets. Ag as an electronic medium to build a special and efficient electron transfer path. In addition, the surface plasmon resonance effect of Ag improves the sunlight utilization of photocatalyst, and Ag as an electron transport medium and co-catalyst enhances the photocatalytic ability of the photocatalyst. Under optimum reaction conditions, the loading of AgIn 5 S 8 is 30%, the reaction rate constants of tetracycline degradation over Ag/BA-30% were 1.96 and 5.58 times of pure BiVO 4 and AgIn 5 S 8 . The possible Z-scheme electron-hole pair transfer mechanism was presented through the capture experiment. It is suggested that ·O 2 − , h + and ·OH are engaged in the degradation of TC. And the prepared photocatalysts were proved to have a potential application value after four consecutive cycles.
研究领域:
材料科学
·
环境科学
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产品关联
DOI
高影响因子
ACS Applied Energy Materials
·
2018
·
IF 0
Zhe Xu,Jihuai Wu,Yuqian Yang,Zhang Lan,Jianming Lin
For a high-performance perovskite solar cell (PSC), the electron transport layer (ETL) plays a prominent role in the transportation of photogenerated charge carriers from the perovskite layer to electrode. Herein, indium sulfide (In2S3) nanosheets are synthesized by solvent-thermal method; In2S3 ETL is prepared by spin-spraying technique, and planar PSC is thus fabricated. The morphology observation indicates that the as-prepared In2S3 ETL is compact, smooth, pinhole-free, and with an optimal thickness of 40 nm. The photoelectrical characterization reveals that, compared to TiO2 ETL, the In2S3 ETL has lower electron trap-state density, lower potential barrier for electron injection from the perovskite layer, higher electron mobility and electron extraction ratio at the In2S3/perovskite interface, smaller contact resistance, and charge recombination. The planar device fabricated with CH3NH3PbI3 perovskite and In2S3 ETL gains an impressive power conversion efficiency (PCE) of 18.83%, and the photovoltaic device with TiO2 ETL obtains a PCE of 15.88% under the same experimental condition. The results provide a novel, low-cost, efficient, and alternative ETL material for PSCs.
研究领域:
材料科学
·
能源技术
·
光电领域
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产品关联
DOI
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2019
·
IF 14.229
Erbing Hua,Shu Jin,Xiaorong Wang,Shuang Ni,Gang Liu,Xiaoxiang Xu
In this work, novel 2D type-II p-n heterojunctions La 2 Ti 2 O 7 /In 2 S 3 have been fabricated. The heterojunctions exhibit much improved photocatalytic activity over individual moieties and their physical mixtures in which 18-fold increment in hydrogen production has been achieved under visible light illumination (λ ≥ 400 nm). Their superior activities stem from intimate face-to-face contact between La 2 Ti 2 O 7 and In 2 S 3 in the heterojunctions which guarantee facile charge interchange. Photoelectrochemical analysis suggests that efficient charge separations occur at the interfaces of the heterojunctions and contributes to a prolonged charge lifetime as well as the much enhanced photocatalytic activities. Such a simple strategy by fabricating ultrathin type-II p-n heterojunctions also warrant promising applications in other areas such as optoelectronics, sensors etc. whereby efficient charge separations are needed.
研究领域:
材料化学
·
光催化
·
纳米材料
·
能源科学
·
半导体物理
·
环境催化
·
可持续能源
✓ 已验证
DOI
高影响因子
CHEMICAL PHYSICS LETTERS
·
2025
·
IF 3.1
Ruifeng Wang,Jiabao Bai,Zhengtao Qiu,Yelin Ding,Chun Sun
Hydrogen peroxide (H 2 O 2 ) is a versatile green oxidant with wide-ranging applications. In this study, a bismuth ion (Bi 3+ )-gradient-doped indium sulfide (In 2 S 3 ) photocatalyst with abundant sulfur vacancies (V s ) was successfully prepared via a polyvinylpyrrolidone (PVP)-assisted hydrothermal method combined with solid-state grinding. The synergy of Bi 3+ doping and V s narrows the bandgap and constructs a built-in electric field for directional carrier transport, enabling the catalyst to achieve a H 2 O 2 production rate of 784.35 μmol g −1 h −1 under visible light (λ ≥ 420 nm). This work establishes a novel paradigm for designing high-performance sulfide photocatalysts.
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）