JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
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2025
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IF 4.7
Suping Zhang,Shuang Zhou,Qianchen Ou,Likang Zhou,Qiaoyi Xiao,Yuan Lian,Liping Guo,Hongmei Wang
Ru-doped ZnIn 2 S 4 (Ru-ZnIn 2 S 4 ) nanostructures were prepared by doping different amounts of Ru into ZnIn 2 S 4 through a one-step hydrothermal method. The structure, morphology, band structure, light absorption and photoelectrochemical properties of as-prepared samples were characterized by a series of characterization methods such as XRD, TEM, SEM, UV–vis DRS, PL and TRPL. These results show that doping Ru into ZnIn 2 S 4 effectively improves the separation and transfer efficiency of photogenerated electrons and holes. When the addition amount of RuCl 3 is 30 µmol, the photocatalytic hydrogen production performance reaches its optimum, achieving a hydrogen production rate of 5974.7 μmol·g −1 ·h −1 , which is 15.9 times greater than that of pure ZnIn 2 S 4 . In the experiment of hydrogen production coupled with tetracycline (TC) degradation, the degradation rate of TC for 0.03Ru-ZnIn 2 S 4 reaches 70.2 %, and the hydrogen production rate reaches up to 202.8 μmol·g −1 ·h −1 , effectively achieving the hydrogen energy conversion and degradation of TC. This study presents a novel strategy for the treatment of wastewater by photocatalysis and realization of energy recovery as well as wastewater treatment.
研究领域:
材料科学
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环境科学
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能源科学
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产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
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2018
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IF 6.14
Yilan Jiang,Zhibin Geng,Long Yuan,Yu Sun,Yingge Cong,Keke Huang,Lei Wang,Wei Zhang
The exsolution of noble metal nanoparticles (NPs) from perovskite usually requires high doping ratio of noble metal. Herein, we constructed a RuO2/LFRO composite by the exsolution of a low Ru-substituted A-site deficient perovskite, La0.9Fe0.92Ru0.08O3 (LFRO). In this process, pure Ru NPs are in situ exsolved from LFRO via a relatively low temperature heat treatment in 5% H2/Ar. Then the exsolved Ru NPs were oxidized to RuO2 for oxygen evolution reaction (OER) applications. The RuO2/LFRO composite achieved a high OER performance compared with the pristine LFRO, which is mainly originated from the generation of electrochemically active RuO2 NPs and the improvement of conductivity. In addition, the exsolution is a reversible process that the exsolved Ru NPs can disappear into the perovskite lattice at 550 °C in air. Our work thereof demonstrates an effective strategy to minimize the dosage of precious metals for catalytic applications in different fields.
研究领域:
材料科学
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催化化学
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2020
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IF 4.65
Mingrui Wei,Shuo Huang,Yun Wang,Yihui Liu,Yunfei He,Chao Wang,Lan Yang
Ru-doped Co 3 O 4 (Ru x Co 3-x O 4 , 0.1 ≤ x ≤ 0.3) catalysts are prepared by co-precipitation method. The prepared powders are characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive spectrometer (EDS), transmission electron microscope (TEM), inductively coupled plasma-optical emission spectrometry (ICP-OES), Brunauer-Emmett-Teller (BET) test and X-ray photoelectron spectroscopy (XPS). These characterization methods confirm that the crystal structure of Ru x Co 3-x O 4 is consistent with that of Co 3 O 4 , and the catalyst powders are in the form of nanoparticles with an average particle diameter of about 20 nm. The electrochemical performances of the catalysts are evaluated by cyclic voltammograms and linear sweep voltammograms in 0.1 M KOH solution. When x = 0.2, Ru x Co 3-x O 4 shows the best electrochemical performances with the onset potential (E onset ) at 0.88 V, the half-wave potential (E 1/2 ) at 0.77 V and the limited current density at 4.41 mA cm −2 . The oxygen reduction reaction for Ru x Co 3-x O 4 mainly follows four-electron pathway with the electron transfer number at about 3.5. Furthermore, Ru 0.2 Co 2.8 O 4 has greater stability and anti-methanol property than Pt/C. These results revealed that Ru x Co 3-x O 4 is an oxygen reduction catalyst with high performance and low cost.
研究领域:
材料科学
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电化学
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催化化学
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产品关联
DOI
高影响因子
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
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2024
·
IF 2.8
Boyun Gao,Huijiang Huang,Mooeez Ur Rehman,Bin Ren,Yuruo Liu,Weipeng Fan,Pengfei Li,Lizhi Zhang,Yan Xu,Yujun Zhao
BACKGROUND The synthesis of fatty amines via fatty alcohol amination offers a promising avenue for environmentally friendly production, particularly when compared with the methods employing hydrocyanic acid which often involve significant emissions. RESULT This study explores the synthesis of n-hexylamine through one-step amination of n-hexanol utilizing a series of Ru-doped Ni catalysts supported over γ-Al 2 O 3 , achieving 61% n-hexanol yield, 35% dihylamine yield and 3.5% trihylamine yield at the n-hexanol conversion of 99%. CONCLUSION The characterization results of the catalysts revealed a significant interaction between ruthenium and nickel in the bimetallic catalysts, leading to the enhanced reducibility of Ni species and improved metal dispersion. Moreover, ruthenium species were found to play an important role in the dissociation of NH 3 into NH x (x = 1, 2), thereby significantly improving the dehydrogenation process of n-hexanol at Ni sites. The synergistic effect between the two kinds of metal sites emerges as crucial factor for the boosted alcohols amination process. © 2024 Society of Chemical Industry (SCI).
研究领域:
催化化学
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环境科学
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DOI
高影响因子
IONICS
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2025
·
IF 2.6
Huang Xiaoyu,Zhang Yaowen,Yang Jian,Xiao Zhizhong,Lu Huidan,Liu Yongping
The synergistic modulation of both the surface electronic configuration and micromorphology of the catalyst is crucial for its electrochemical hydrogen evolution activity. This research successfully developed an efficient Ru-WS 2 NS/CC electrocatalyst for the hydrogen evolution reaction (HER) using a simple two-step strategy involving a solvothermal reaction followed by chemical vapor deposition. The catalyst exhibits excellent electrocatalytic activity and remarkable stability in acidic electrolyte, demonstrating an overpotential of 128.8 mV (at 10 mA cm − 2 ), a Tafel slope of 58.7 mV dec − 1 , and a low charge transfer resistance of only 3.8 Ω, while maintaining high catalytic activity for at least 24 h under acidic conditions. The enhanced HER performance of the Ru-WS 2 NS/CC catalyst is attributed to two main factors: first, the strong electronic interaction induced by Ru doping, which improves the intrinsic electrocatalytic activity; second, the uniform and thin nanosheet morphology of WS 2 provides a highly developed surface area that facilitates hydrogen adsorption and desorption. Density functional theory (DFT) simulations further indicate that introducing Ruthenium (Ru) dopants substantially lowers the Gibbs free energy (ΔG H* ) associated with hydrogen adsorption on the catalyst. Analysis of charge density differences corroborates that such doping strategy efficiently tailors the electronic configuration of the WS 2 support, thereby optimizing its interfacial characteristics. This work proposes an effective electronic structure modulation strategy for developing three-dimensional materials into high-efficiency hydrogen evolution electrocatalysts.
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产品关联
DOI
高影响因子
Journal of Energy Chemistry
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2022
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IF 13.599
Yuting Yang,Yi Huang,Shuqing Zhou,Yi Liu,Luyan Shi,Tayirjan Taylor Isimjan,Xiulin Yang
Surface vacancy defects, as the bridge between theoretical structural study and the design of heterogenous catalysts, have captured much attention. This work develops a metal-organic framework-engaged replacement-pyrolysis approach to obtain highly dispersed Ru nanoparticles immobilized on the vacancy-rich Ni-NiO@C hollow microsphere (Ru/Ni-NiO@C). Fine annealing at 400 °C introduces nickel and oxygen vacancies on Ru/Ni-NiO@C surface, resulting in an improved electrical conductivity and rapid mass-charge transfer efficiency. Ru/Ni-NiO@C with a hollow micro/nanostructure and interconnected meso-porosity favors the maximal exposure of abundant active sites and elevation of hydrogen oxidation reaction (HOR) activity. Experimental results and density functional theory (DFT) calculations reveal that an electronic effect between Ru and Ni-NiO@C, in conjunction with nickel/oxygen vacancies in the NiO species could synergistically optimize hydrogen binding energy (HBE) and hydroxide binding energy (OHBE). The HBE and OHBE optimizations thus created confer Ru/Ni-NiO@C with a mass activity over 7.75 times higher than commercial Pt/C. Our work may provide a constructive route to make a breakthrough in elevating the hydrogen electrocatalytic performance.
研究领域:
材料科学
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电化学
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催化
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产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
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2025
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IF 7.3
Feng Gu,Jie Wang,Jie Wu,Xiang Tian,Xian Zhang,Zhiguang Guo
Alkaline water electrolysis (AWE) shows great potential for sustainable hydrogen production, but its deployment is hindered by insufficient charge/mass transfer at electrode–electrolyte interfaces. Herein, we report a distinctive heterostructure featuring NiOOH nanosheets with Ru doping immobilized on NiMoSx (RuNiOOH/NiMoSx) to address this challenge. Theoretical predictions and experimental results demonstrate that the charge redistribution in the RuNiOOH/NiMoSx heterostructure downshifts the Ru d-band center, thereby optimizing H* binding strength and the unique heterostructure provides a multitude of accessible active sites and three-dimensional (3D) mass transport channels, synergistically facilitating H2O adsorption and bubble desorption. Such optimized bubble dynamics ensure rapid active-site regeneration and sustained catalytic activity. As a consequence, the RuNiOOH/NiMoSx electrode exhibits outstanding hydrogen evolution reaction (HER) performance, delivering current densities of 10 and 500 mA cm–2 at overpotentials of 5.4 and 136.2 mV, respectively, while maintaining outstanding stability over 100 h at 100 mA cm–2. Furthermore, RuNiOOH/NiMoSx-based practical alkaline water electrolyzer drives 1.0 A cm–2 at a cell voltage of just 1.75 V for over 24 h without degradation. The present research delivers a new design paradigm for advanced heterostructured catalysts.
研究领域:
能量转换
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电化学
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纳米材料
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催化
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材料科学
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产品关联
DOI
高影响因子
Nano Research
·
2023
·Vol. 16
·期 8
·10810-10821
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IF 9.9
Ren Jinhong,Liu Jie,Du Yunmei,Li Shuangshuang,Wang Mengmeng,Li Bin,Yang Bo,Wang Lei,Liu Yanru
At present, Ru dopants mainly enhance electrocatalytic performance by inducing strain, vacancy, local electron difference, and synergy. Surprisingly, this work innovatively proposes that trace Ru atoms induce dual-reconstruction of phosphide by regulating the electronic configuration and proportion of Co-P/Co-O species, and ultimately activate superb electrocatalytic performance. Specifically, Ru-CoFeP@C/nickel foam (NF) is reconstructed to generate hydrophilic Co(OH) 2 nanosheets during the hydrogen evolution reaction (HER) process, further accelerating the alkaline HER kinetics of phosphide. And the as-formed CoOOH during the oxygen evolution reaction (OER) process directly accelerates the oxygen overflow efficiency. As expected, the overpotential at 100 mA·cm −2 ( η 100 ) values of the reconstructed Ru-CoFeP@C/NF are 0.104 and 0.257 V for HER and OER, which are greatly lower than that of Pt/C-NF and RuO 2 -NF benchmarks, respectively. This work provides guidance for the construction of high-performance catalysts for HER and OER dual reconstruction. This work provides a new idea for the optimization of catalyst structure and electrocatalytic performance.
研究领域:
材料科学
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电化学
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催化
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产品关联
DOI
高影响因子
ENERGY & FUELS
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2021
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IF 3.605
Weiyu Song,Kuichao Yu,Xiangyang Ji,Bowen Liu,Zhi Li,Yanjun Chen,Jian Liu
Low-cost, environmentally friendly, and highly efficient catalysts are urgently needed for the direct propane dehydrogenation (PDH) to propylene. Studies have shown that defective TiO2 obtained by in situ reduction shows excellent catalytic PDH performance. Doping metals in the lattice of TiO2 is a plausible method for tuning the vacancy content and electronic property. In this paper, doping with fifth period transition metals was screened using a computational method, followed by experimental synthesis to further improve the PDH activity of TiO2-based catalysts. The TiO2 (101) surface with doping metals was first studied to determine the positive effect on the vacancy formation. Then, the two disputed reaction paths, that is, the concerted and stepwise path, were compared extensively on all of the doping models. Step one is found to be more preferable for all. The microkinetic modeling was employed to obtain the turnover frequency (TOF), based on which the linear relationship is found for TOF and binding energy of dissociated H2 or co-adsorption energy of 2-propyl&H. The abovementioned screening process shows Ru-doped TiO2, which shows the highest PDH activity and is justified by experimental results.
研究领域:
催化
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材料科学
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化学工程
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计算化学
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产品关联
DOI
高影响因子
BIOSENSORS & BIOELECTRONICS
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2017
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IF 7.78
Haiyan Wang,Chunling Qi,Wenhuan He,Minghui Wang,Wenjing Jiang,Huanshun Yin,Shiyun Ai
A novel, simple and sensitive photoelectrochemical (PEC) immunosensing platform was constructed for detecting N 6 -methyladenosine (m 6 A) based on the carboxylated CN and avidin functionalized [email protected] 2 (ARS) nanocomposite . Herein, the N 6 -methyladenosine-5′-triphosphate (m 6 ATP) was selected as the detection target molecule, m 6 A antibody was used as recognition unit for m 6 A, the carboxylated g-C 3 N 4 (CN) was not only used as the photoactive substance, but the substrate for the m 6 A antibody immobilization , ARS was synthesized and used as signal amplification unit to improve the photocurrent of CN, Phos-tag-biotin was employed as bridge of m 6 ATP and [email protected] 2 through the specific interaction between phosphate group of m 6 ATP and Phos-tag, biotin and avidin, respectively. Under the optimal condition, the fabricated PEC biosensor showed a linear range of 0.01–10 nM and high detection sensitivity with low detection limit of 3.23 pM for m 6 ATP. Besides, the developed strategy was also successfully applied to evaluate the content of m 6 A in human serum samples.
研究领域:
分析化学
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生物化学
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纳米技术
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生物传感器
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2021
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IF 8.128
Jianmei Cen,Pei Kang Shen,Yanfei Zeng
Herein, a novel Ru-doped bimetal phosphide (Ru-NiCoP) heterostructure electrocatalyst on Ni foam is successfully synthesized through a multi-step hydrothermal reaction , ion exchange, and phosphorization method for efficient overall water splitting in alkaline media. The doping of Ru and P can effectively optimize the electronic structure and expose more active sites. The unique 3D interconnected nanowires not only ensures the uniform distribution of Ru coupled with NiCoP, but also endows the Ru-NiCoP/NF with the large ECSA, the fast electron transport and the favorable reaction kinetics attributes. Benefiting from the compositional and structural advantages, Ru-NiCoP/NF catalyst exhibits significantly enhanced catalytic activities along with excellent stability, only needing 32.3 mV at 10 mA cm −2 for HER and 233.8 mV at 50 mA cm −2 for OER . In particular, when Ru-NiCoP/NF is employed as both cathode and anode electrodes, a small voltage of 1.50 V is required to reach 30 mA cm −2 for overall water splitting with an impressive stability. This study provides an alternative strategy on the design and development of high performance catalysts for overall water splitting and other energy conversion fields.
研究领域:
材料科学
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电化学
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催化
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能源转换
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产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）