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| 1 | Improved activity of Ni/MgAl_2O_4 for CO_2 methanation by the plasma decomposition显示文摘CO2 methanation has been a hot topic because of its important application in the spacecraft and potential utilization of carbon dioxide. Nickel catalyst is active for this reaction. However, its activity still needs to be improved. Dielectric barrier discharge(DBD) plasma, initiated at ambient condition and operated at ~150 °C,has been employed in this work for decomposition of nickel precursor to prepare Ni/Mg Al2O4. The plasma decomposition results in high dispersion, unique structure, enhanced reducibility of Ni particles and promoted catalyst-support interaction. An improved activity of CO2 methanation with a higher yield of methane has been achieved over the plasma decomposed catalyst, compared to the catalyst prepared thermally. For example, the methane yield of the plasma prepared catalyst is 71.8% at 300 °C but it is 62.9% over the thermal prepared catalyst. The catalyst characterization confirmed that CO2 methanation over the DBD plasma prepared catalyst follows pathway of CO methanation. | Zhigang Fan Kaihang Sun Ning Rui Binran Zhao Chang-jun Liu | 2015 | Journal of Energy Chemistry2015,24,5: | 9 |
| 2 | Progress and Understanding on Catalysts with Well-defined Interface for Boosting CO_(2)Conversion显示文摘Catalytic conversion of CO_(2)into valuable chemicals like CH;OH is the most promising way to alleviate CO_(2)emission for solving the serious climate change issue.Multi-component catalysts with well-defined interface show outstanding performance in CO_(2)conversion due to the synergistic effects and multifunctional properties caused by the well-defined interface.A discharge technique,named as cold plasma,has been recognized as an excellent strategy for tuning catalyst interface properties.The temperature of cold plasma is lower than 200℃,and can be further lowered to room temperature by simply changing the operation conditions of cold plasma.The lower temperature of cold plasma can well maintain the catalyst structures,especially the porous structures.When conducting cold plasma,in addition to nontoxic working gases like Ar and air,no harmful substances are used.Cold-plasma-prepared catalysts have unique interface properties,and thereby exhibit superior performance in CO_(2)conversion over the catalysts prepared by traditional methods.The present review summarizes the progress about the cold-plasma-prepared catalysts for CO_(2)conversion,discusses the origin for the outstanding catalytic performance,and proposes the challenges and opportunities for further studies.This will stimulate more deep insights into the cold-plasma-prepared catalysts with well-defined interface properties for achieving more efficient CO_(2)conversion. | Binran Zhao Yiyi Zhao Peng Liu Yulong Men Xinyu Meng Yunxiang Pan | 2022 | Chinese Journal of Structural Chemistry2022,41,4: | 1 |
| 3 | Test of agronomic characteristics and amplified fragment length polymorphism analysis of new rice germplasm developed from transformation of genomic DNA of distant relatives显示文摘 | Quanhua Xing Binran Zhao Ke Xu Hehua Yang Xia Liu Songwen Wang Demin Jin Longping Yuan Bin Wang | 2004 | Plant Molecular Biology Reporter2004,,2: | 1 |
| 4 | Boosting the adsorption and removal of dye from water by COOH-functionalized carbon nanotubes显示文摘Water pollution caused by dye is a serious challenge.Herein,we use a novel discharge process to functionalize carbon nanotube(CNT)by COOH groups to form CNT30 for removing methyl red(MR)from water.By pristine CNT,75%MR is removed in 60 min,with an adsorption capacity of 68.44 mg g-1.By CNT30,85%MR is fast removed in only 5 min,and the removal efficiency reaches to 95%after 30 min,with an adsorption capacity of80.33 mg g-1.Thus,a higher MR removal efficiency is achieved in a much shorter time on CNT30.Moreover,CNT30 has an outstanding reusability,with the MR removal efficiency decreasing by only 7%after ten cycles.The COOH groups on CNT30 improve the hydrophilicity of CNT30,thus promoting the interaction of MR in water with CNT30.The hydrogen bonding and electrostatic interaction of MR with the COOH groups on CNT30 could be the force to drive MR adsorption on CNT30.The higher COOH content could be the origin for the better performance of CNT30 in removing dye from water.The discharge process developed herein is operated in O2,without using harmful substances,and the COOH content on CNT can be efficiently tuned by simply changing discharge time.This is different from the chemical modification widely used to functionalize CNT by strong oxidants,e.g.,HNO_(3).The present work is of great significance to realize green construction of materials for more efficiently removing dye from water. | Binran Zhao Yiyi Zhao Peng Liu Yu-Long Men Yun-Xiang Pan | 2023 | Green Chemical Engineering2023,4,1: | 0 |
| 5 | In-situ synthesis of N, S co-doped hollow carbon microspheres for efficient catalytic oxidation of organic contaminants显示文摘Metal-free heteroatom doped nanocarbons are promising alternatives to the metal-based materials in catalytic ozonation for destruction of aqueous organic contaminants. In this study, N, S co-doped hollow carbon microspheres (NSCs) were synthesized from the polymerization products during persulfate wet air oxidation of benzothiazole. The contents of doped N and S as well as the structural stability were maneuvered by adjusting the subsequent N_(2)-annealing temperature. Compared with the prevailing single-walled carbon nanotubes, the N_(2)-annealed NSCs demonstrated a higher catalytic ozonation activity for benzimidazole degradation. According to the quantitative structure-activity relationship (QSAR) analysis, the synergistic effect between the graphitic N and the thiophene-S which redistributed the charge distribution of the carbon basal plane contributed to the activity enhancement of the N_(2)-annealed NSCs. Additionally, the hollow structure within the microspheres served as the microreactor to boost the mass transfer and reaction kinetics via the nanoconfinement effects. Quenching and electron paramagnetic resonance (EPR) tests revealed that benzimidazole degradation was dominated by the produced singlet oxygen (^(1)O_(2)) species, while hydroxyl radicals (^(·)OH) were also generated and participated. This study puts forward a novel strategy for synthesis of heteroatom-doped nanocarbons and sheds a light on the relationship between the active sites on the doped nanocarbons and the catalytic performance. | Yongbing Xie Ya Liu Yujie Yao Yanchun Shi Binran Zhao Yuxian Wang | 2022 | Chinese Chemical Letters2022,33,3: | 0 |
| 6 | K2HPO4-mediated Photocatalytic H_(2)Production over NiCoP/RP Heterojunction显示文摘In this work,bimetallic NiCoP nanoparticles(NPs)were firstly prepared by a solvothermal method using red phosphorus(RP)as P source,and it was combined with RP nanosheets via a physical grinding process.Investigation indicates that NiCoP has better charge transfer ability and faster H_(2)releasing kinetics than the corresponding single metal phosphides alone.6 wt%NiCoP/RP exhibits an excellent H_(2)evolution activity in 20 vol.%triethanol-amine/water solution under a 300W Xe-lamp irradiation,and the corresponding H_(2)production rate is 1535.6μmol·g^(-1)·h^(-1),which is 7.4,3.2 and 2.6 times higher than those of pure RP,6 wt%Co_(2)P/RP and 6 wt%Ni_(2)P/RP,respectively.In addition,we demonstrate that K_(2)HPO_(4)can further enhance the H_(2)evolution kinetics by inducing a new H^(+)reduction path,when appropriate K_(2)HPO_(4)is introduced into the reaction solution.The H_(2)production rate of 6 wt%NiCoP/RP is boosted from 1535.6 to 2793.9μmol·g^(-1)·h^(-1) due to the easier combination between H^(+)and electrons with the assistance of HPO_(4)^(2-).It is 13.4 times higher than that of pure RP.This work demonstrates that bimetallic phosphides with suitable electrolytes can greatly enhance the photocatalytic H_(2)evolution efficiency. | Junfeng Huang Chenyang Li Xiaoyun Hu Jun Fan Binran Zhao Enzhou Liu | 2022 | Chinese Journal of Structural Chemistry2022,41,6: | 0 |