cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.57760/sciencedb.06020
title: Tunable synthesis of imines and secondary-amines from tandem hydrogenation-coupling of aromatic nitro and aldehyde over NiCo5 bi-metallic catalyst
title: Tunable synthesis of imines and secondary-amines from tandem hydrogenation-coupling of aromatic nitro and aldehyde over NiCo5 bi-metallic catalyst

description: A green process for production of imine and secondary-amine with high selectivity is desirable and challenging. Here, selective production of these nitrogen-containing compounds in one-pot was effectively realized in a hydrogenation-coupling tandem reaction system catalyzed by bi-metallic NiCo catalyst. The investigation of Co/Ni composition vs activity showed a composition-dependence catalysis and the optimal bi-metallic catalyst was NiCo5 (Ni and Co molar ratio 1:5). Nitrobenzene (NB) could almost completely transform toward imine at 70 °C and secondary-amine at 90 °C, respectively. The adsorption configurations of reactant on catalyst surface were analyzed by DFT calculation to probe the reaction mechanism. And the reaction dynamics were also investigated deeply, suggesting that hydrogenation of NB should be promoted but hydrogenation of benzaldehyde (BA) need inhibiting. Additionally, the catalytic system under moderate reaction conditions could also be applied to a variety of substituted aromatic nitro and aldehyde compounds, showing high yields of corresponding imines.
description: A green process for production of imine and secondary-amine with high selectivity is desirable and challenging. Here, selective production of these nitrogen-containing compounds in one-pot was effectively realized in a hydrogenation-coupling tandem reaction system catalyzed by bi-metallic NiCo catalyst. The investigation of Co/Ni composition vs activity showed a composition-dependence catalysis and the optimal bi-metallic catalyst was NiCo5 (Ni and Co molar ratio 1:5). Nitrobenzene (NB) could almost completely transform toward imine at 70 °C and secondary-amine at 90 °C, respectively. The adsorption configurations of reactant on catalyst surface were analyzed by DFT calculation to probe the reaction mechanism. And the reaction dynamics were also investigated deeply, suggesting that hydrogenation of NB should be promoted but hydrogenation of benzaldehyde (BA) need inhibiting. Additionally, the catalytic system under moderate reaction conditions could also be applied to a variety of substituted aromatic nitro and aldehyde compounds, showing high yields of corresponding imines.
DOI: 10.57760/sciencedb.o00009.00316
title: Simulation data for the publication "RCM-J Numerical Simulation of Centrifugally Driven Convection in Jovian Inner Magnetosphere"
title: Simulation data for the publication "RCM-J Numerical Simulation of Centrifugally Driven Convection in Jovian Inner Magnetosphere"

description: This directory contains the data and codes used in the work entitled “RCM-J Numerical Simulation of Centrifugally Driven Convection in Jovian Inner Magnetosphere” by Wang et al.
description: This directory contains the data and codes used in the work entitled “RCM-J Numerical Simulation of Centrifugally Driven Convection in Jovian Inner Magnetosphere” by Wang et al.
DOI: 10.57760/sciencedb.06023
title: Crystal plane effect of ceria on supported copper catalyst for liquidphase hydrogenation of unsaturated aldehyde
title: Crystal plane effect of ceria on supported copper catalyst for liquidphase hydrogenation of unsaturated aldehyde

description: Ceria has been widely used as catalyst support displaying a size- or shape-dependent catalytic performance due to the strong metal-support interaction (SMSI) effect with active metal. Almost all the studies on the SMSI effect of ceria-supported metal catalysts are involved generally in gas-phase reaction, but rarely in the liquid-phase reaction system. In this work, Cu/CeO2-P (copper loaded on nano-polyhedral CeO2 with (1 1 1) terminated surface) was investigated its catalytic performance on liquid-phase hydrogenation and studied the SMSI effect by comparing with the catalysts supported on nano-rod and nanocube CeO2. It was found that Cu was highly dispersed on the external surface of ceria in the Cu/CeO2-P catalyst via a moderate SMSI effect. Furthermore, the degree of the interaction showed great inflfluence on the chemical state of Cu species, and the ratio of (Cu+ +Cu0 )/Cu2+ in Cu/CeO2-P was higher than Cu/ CeO2-R (Cu loaded on nano-rod CeO2 with (1 1 0) plane) and Cu/CeO2-C (Cu loaded on nano-cube CeO2 with (1 0 0) facet). As a result, the Cu/CeO2-P catalyst showed the best catalytic performance among three types of catalysts. Based on series of catalytic investigations, the catalytic performance in liquid-phase hydrogenation was intrinsically relevant to the crystal plane effect and reduced Cu proportion induced by an appropriate SMSI effect, which was completely different from gas-phase hydrogenation.
description: Ceria has been widely used as catalyst support displaying a size- or shape-dependent catalytic performance due to the strong metal-support interaction (SMSI) effect with active metal. Almost all the studies on the SMSI effect of ceria-supported metal catalysts are involved generally in gas-phase reaction, but rarely in the liquid-phase reaction system. In this work, Cu/CeO2-P (copper loaded on nano-polyhedral CeO2 with (1 1 1) terminated surface) was investigated its catalytic performance on liquid-phase hydrogenation and studied the SMSI effect by comparing with the catalysts supported on nano-rod and nanocube CeO2. It was found that Cu was highly dispersed on the external surface of ceria in the Cu/CeO2-P catalyst via a moderate SMSI effect. Furthermore, the degree of the interaction showed great inflfluence on the chemical state of Cu species, and the ratio of (Cu+ +Cu0 )/Cu2+ in Cu/CeO2-P was higher than Cu/ CeO2-R (Cu loaded on nano-rod CeO2 with (1 1 0) plane) and Cu/CeO2-C (Cu loaded on nano-cube CeO2 with (1 0 0) facet). As a result, the Cu/CeO2-P catalyst showed the best catalytic performance among three types of catalysts. Based on series of catalytic investigations, the catalytic performance in liquid-phase hydrogenation was intrinsically relevant to the crystal plane effect and reduced Cu proportion induced by an appropriate SMSI effect, which was completely different from gas-phase hydrogenation.
DOI: 10.57760/sciencedb.06026
title: The first implementation of active detachment feedback control in EAST PCS
title: The first implementation of active detachment feedback control in EAST PCS

description: EAST achieved 101.2 seconds H-mode discharge with total power injection up to 3MW in 2017. Consequently to the enhanced auxiliary heating power, the active divertor heat flux control is urgently needed in EAST. In 2018, the active divertor detachment feedback control was implemented successfully in EAST plasma control system (PCS) with divertor Langmuir probe measurements for evaluating the divertor particle flux. The control algo- rithm controlled the degree of detachment effectively during the 2018 EAST experiments through either D2 fueling in the low field side using SMBI or impurity seeding from the divertor volume in H-mode plasmas, without significant degradation of the core-plasma performance, i.e., exhibiting good core-edge-divertor in- tegration. The algorithm implementation in PCS and experimental results will be reported in this paper. Further efforts will be made to extend active feedback control towards long-pulse H-mode detachment maintenance in the near future, which will benefit the high power, H-mode operation for ITER.
description: EAST achieved 101.2 seconds H-mode discharge with total power injection up to 3MW in 2017. Consequently to the enhanced auxiliary heating power, the active divertor heat flux control is urgently needed in EAST. In 2018, the active divertor detachment feedback control was implemented successfully in EAST plasma control system (PCS) with divertor Langmuir probe measurements for evaluating the divertor particle flux. The control algo- rithm controlled the degree of detachment effectively during the 2018 EAST experiments through either D2 fueling in the low field side using SMBI or impurity seeding from the divertor volume in H-mode plasmas, without significant degradation of the core-plasma performance, i.e., exhibiting good core-edge-divertor in- tegration. The algorithm implementation in PCS and experimental results will be reported in this paper. Further efforts will be made to extend active feedback control towards long-pulse H-mode detachment maintenance in the near future, which will benefit the high power, H-mode operation for ITER.
DOI: 10.57760/sciencedb.06027
title: Highly dispersed nickel anchored on a N-doped carbon molecular sieve derived from metal– organic frameworks for efficient hydrodeoxygenation in the aqueous phase
title: Highly dispersed nickel anchored on a N-doped carbon molecular sieve derived from metal– organic frameworks for efficient hydrodeoxygenation in the aqueous phase

description: ZIF-8 was employed as a template to synthesize HD-Ni/N-CMScontaining highly dispersed Ni at the atomic level anchored on aN-doped carbon molecular sieve for vanillin hydrodeoxygenation.The ZIF-8 structure was inherited and Ni–N bonds were formed bythe coordination of Ni with N-rich defects, therefore it exhibited ahigh turnover frequency (1047.1 h 1 ) and good stability.
description: ZIF-8 was employed as a template to synthesize HD-Ni/N-CMScontaining highly dispersed Ni at the atomic level anchored on aN-doped carbon molecular sieve for vanillin hydrodeoxygenation.The ZIF-8 structure was inherited and Ni–N bonds were formed bythe coordination of Ni with N-rich defects, therefore it exhibited ahigh turnover frequency (1047.1 h 1 ) and good stability.
DOI: 10.57760/sciencedb.06028
title: Core shell hetero-structured SiO2@Ni/SiO2 catalyst for efficient aqueous-phase hydrogenation of bio-derived unsaturated compounds
title: Core shell hetero-structured SiO2@Ni/SiO2 catalyst for efficient aqueous-phase hydrogenation of bio-derived unsaturated compounds

description: Silica is one of the most referenced materials for the preparation of heterogeneous metal catalysts. However, silica spheres with smooth surfaces have difficulty encapsulating active metals due to their small surface area and the presence of only a handful of silicon hydroxyl groups on the surface. In this work, the silica sphere has been first consciously transformed into a hierarchical SiO2@silicate structure, and then the core–shell hetero-structured SiO2@Ni/SiO2 catalyst can be tactfully obtained by reducing treatment. The core–shell catalyst is composed of a rigid core (SiO2) and a rough shell (Ni NPs highly disperse on nanosheet SiO2), which are carefully verified by X-ray diffraction (XRD), transmission electron microscope (TEM), field scanning electron microscope (FESEM), H2-TPR/TPD and X-ray photoelectron spectroscopy (XPS). The derived SiO2@Ni/SiO2 catalyst can selectively hydrogenate vanillin in the aqueous phase at near-room temperature (40 ℃) and low hydrogen pressure (2 MPa H2), and the conversion of vanillin can be up to 99%. The preparation method of the SiO2@Ni/SiO2 catalyst is simple and can be amplified to a large scale at a low price, thus can be adopted to convert bio-derived unsaturated compounds in an economical and eco-friendly way. 
description: Silica is one of the most referenced materials for the preparation of heterogeneous metal catalysts. However, silica spheres with smooth surfaces have difficulty encapsulating active metals due to their small surface area and the presence of only a handful of silicon hydroxyl groups on the surface. In this work, the silica sphere has been first consciously transformed into a hierarchical SiO2@silicate structure, and then the core–shell hetero-structured SiO2@Ni/SiO2 catalyst can be tactfully obtained by reducing treatment. The core–shell catalyst is composed of a rigid core (SiO2) and a rough shell (Ni NPs highly disperse on nanosheet SiO2), which are carefully verified by X-ray diffraction (XRD), transmission electron microscope (TEM), field scanning electron microscope (FESEM), H2-TPR/TPD and X-ray photoelectron spectroscopy (XPS). The derived SiO2@Ni/SiO2 catalyst can selectively hydrogenate vanillin in the aqueous phase at near-room temperature (40 ℃) and low hydrogen pressure (2 MPa H2), and the conversion of vanillin can be up to 99%. The preparation method of the SiO2@Ni/SiO2 catalyst is simple and can be amplified to a large scale at a low price, thus can be adopted to convert bio-derived unsaturated compounds in an economical and eco-friendly way.
DOI: 10.57760/sciencedb.06029
title: Facile synthesis of N, P co-doped carbon encapsulated Ni catalyst for green production of cyclopentanone from biomass derivative furfural
title: Facile synthesis of N, P co-doped carbon encapsulated Ni catalyst for green production of cyclopentanone from biomass derivative furfural

description: Aqueous-phase hydrogenation-rearrangement tandem (AP-HRT) reaction is a green and sustainable route to produce cyclopentanone from bio-based furan compounds. Herein, the ionic liquid was applied as the precursor to synthesize Ni@NP-C catalyst, which contains high dispersed nickel nanoparticles (Ni NPs) encapsulated in the N, P co-doped carbon layer, for the selectivity transformation of furfural towards cyclopentanone. The synthesized Ni@NP-C catalyst can afford 100% FAL conversion and 86.7% CPO yield at 130 ◦C and 1.5 MPa H2 within 2 h AP-HRT reaction. The introduction of the electronegative heteroatom on the surface can not only improve the adsorption of reactant but also provide weak Lewis Acid sites for being beneficial to the high selectivity of cyclopentanone. The catalyst displays superior activity, selectivity, and stability in the tandem catalytic system in view of the tunable chemical states of the doped heteroatoms by handily adjusting the pyrolysis temperature. 
description: Aqueous-phase hydrogenation-rearrangement tandem (AP-HRT) reaction is a green and sustainable route to produce cyclopentanone from bio-based furan compounds. Herein, the ionic liquid was applied as the precursor to synthesize Ni@NP-C catalyst, which contains high dispersed nickel nanoparticles (Ni NPs) encapsulated in the N, P co-doped carbon layer, for the selectivity transformation of furfural towards cyclopentanone. The synthesized Ni@NP-C catalyst can afford 100% FAL conversion and 86.7% CPO yield at 130 ◦C and 1.5 MPa H2 within 2 h AP-HRT reaction. The introduction of the electronegative heteroatom on the surface can not only improve the adsorption of reactant but also provide weak Lewis Acid sites for being beneficial to the high selectivity of cyclopentanone. The catalyst displays superior activity, selectivity, and stability in the tandem catalytic system in view of the tunable chemical states of the doped heteroatoms by handily adjusting the pyrolysis temperature.
DOI: 10.57760/sciencedb.06034
title: Upgrade of EAST plasma control system for steady-state advanced operation
title: Upgrade of EAST plasma control system for steady-state advanced operation

description: The EAST plasma control system (PCS) undergoes continuous development and upgrade to achieve major goals of EAST steady-state advanced operation. According to the development of computer multi-core processor technology, the four nodes PCS cluster was simplified to one host and one real time computing node structure. Besides, the cluster internal data exchange network Myrinet was replaced by high speed 10 Giga-bit Ethernet for inter machine and shared memory technology for multi-core communication. Such new upgraded system is called standalone PCS which has less hardware but be more efficient and easy to backup. In the new upgraded system, a real time archiving mode using data segment technology of MDSplus was realized which provided the possibility to save all data in segments without increasing the computer memory or reducing the saving fre- quency in steady–state operation. To reduce the heat flux and surface temperature on the divertor targets, plasma radiation control using divertor inert gas puffing and mid-plane supersonic molecular beam injection (SMBI) was integrated in PCS. In this paper, the control design and experiment results are discussed.
description: The EAST plasma control system (PCS) undergoes continuous development and upgrade to achieve major goals of EAST steady-state advanced operation. According to the development of computer multi-core processor technology, the four nodes PCS cluster was simplified to one host and one real time computing node structure. Besides, the cluster internal data exchange network Myrinet was replaced by high speed 10 Giga-bit Ethernet for inter machine and shared memory technology for multi-core communication. Such new upgraded system is called standalone PCS which has less hardware but be more efficient and easy to backup. In the new upgraded system, a real time archiving mode using data segment technology of MDSplus was realized which provided the possibility to save all data in segments without increasing the computer memory or reducing the saving fre- quency in steady–state operation. To reduce the heat flux and surface temperature on the divertor targets, plasma radiation control using divertor inert gas puffing and mid-plane supersonic molecular beam injection (SMBI) was integrated in PCS. In this paper, the control design and experiment results are discussed.
DOI: 10.57760/sciencedb.06044
title: Electrocatalytically Active Fe-(O-C2)4 Single-Atom Site for Efficient Reduction of Nitrogen to Ammonia
title: Fe-(O-C2)4 单原子活性位点用于高效电催化氮气还原为氨

description: The folder contains all the original pictures, representation data and calculation data contained in the text of the article, which are summarized in the PPT
description: The folder contains all the original pictures, representation data and calculation data contained in the text of the article, which are summarized in the PPT
DOI: 10.57760/sciencedb.06057
title: Data set of surface water environmental characteristics of typical small watershed in Yunnan Guizhou Plateau （2011-2020）
title: 云贵高原典型小流域地表水环境特征数据集 （2011-2020）

description: Based on the long-term regular monitoring of the surface water environment in the Erhai Lake basin of Yunnan plateau lake by the National Field Scientific Observation and Research Station of the Erhai Lake Ecosystem, the data set of the characteristics of the water environment in the Erhai Lake basin of plateau lake from 2011 to 2020 is integrated. In this data set, there are 10 sampling points in a typical small watershed, which are distributed at the source, upstream, midstream, downstream and lake inlet of the small watershed. The sample collection time is at the beginning and middle of each month. The data includes 9 indicators such as physical characteristics and water chemical composition of the surface water environment. The monitoring process, laboratory analysis and data analysis are conducted under the guidance of the specifications and standards required by China Ecosystem Research Network (CREN) and the National Science and Technology Foundation Platform, and the data quality is reliable. It can provide important data for comprehensive assessment, management and planning of small watershed water environment and environmental science in terms of water environment protection, water pollution control and water environment health maintenance.
description: Based on the long-term regular monitoring of the surface water environment in the Erhai Lake basin of Yunnan plateau lake by the National Field Scientific Observation and Research Station of the Erhai Lake Ecosystem, the data set of the characteristics of the water environment in the Erhai Lake basin of plateau lake from 2011 to 2020 is integrated. In this data set, there are 10 sampling points in a typical small watershed, which are distributed at the source, upstream, midstream, downstream and lake inlet of the small watershed. The sample collection time is at the beginning and middle of each month. The data includes 9 indicators such as physical characteristics and water chemical composition of the surface water environment. The monitoring process, laboratory analysis and data analysis are conducted under the guidance of the specifications and standards required by China Ecosystem Research Network (CREN) and the National Science and Technology Foundation Platform, and the data quality is reliable. It can provide important data for comprehensive assessment, management and planning of small watershed water environment and environmental science in terms of water environment protection, water pollution control and water environment health maintenance.
DOI: 10.57760/sciencedb.06037
title: A New Application of a Mesoporous Hybrid of Tungsten Oxide and Carbon as an Adsorbent for Elimination of Sr2+ and Co2+ from an Aquatic Environment-dataset
title: A New Application of a Mesoporous Hybrid of Tungsten Oxide and Carbon as an Adsorbent for Elimination of Sr2+ and Co2+ from an Aquatic Environment-原始数据

description: The as-prepared composite was applied as an adsorbent for metal ion elimination from wastewater via batch experiments. The adsorption results suggested that the adsorption interactions between WOx/C and Sr2+ and Co2+ were pH-dependent, while the effect of ionic strength toward sorption capacity depended on the solution acidity and adsorbates. The sorption process followed the Langmuir model with the maximum sorption capacity of Sr2+ and Co2+ onto WOx/C being 175.0 and 326.0 mg/g at 308 K, respectively. Thermodynamic parameters, namely, ΔS°, ΔH°, and ΔG°, indicated an endothermic, but spontaneous adsorption process.
description: The as-prepared composite was applied as an adsorbent for metal ion elimination from wastewater via batch experiments. The adsorption results suggested that the adsorption interactions between WOx/C and Sr2+ and Co2+ were pH-dependent, while the effect of ionic strength toward sorption capacity depended on the solution acidity and adsorbates. The sorption process followed the Langmuir model with the maximum sorption capacity of Sr2+ and Co2+ onto WOx/C being 175.0 and 326.0 mg/g at 308 K, respectively. Thermodynamic parameters, namely, ΔS°, ΔH°, and ΔG°, indicated an endothermic, but spontaneous adsorption process.
DOI: 10.57760/sciencedb.06046
title: Ambient Electrosynthesis of Ammonia Using Core–Shell Structured Au@C Catalyst Fabricated by One-Step Laser Ablation Technique
title: 一步激光烧蚀法制备核壳结构Au@C催化剂的环境电合成氨

description: This folder contains all the original pictures and representation data and calculation data contained in the text, which are summarized in the PPT
description: This folder contains all the original pictures and representation data and calculation data contained in the text, which are summarized in the PPT
DOI: 10.57760/sciencedb.06047
title: Sulfonate group functionalized active carbon-based Cu catalyst for electrochemical ammonia synthesis under ambient conditions
title: 磺酸基官能化的活性炭负载的铜基催化剂用于电催化合成氨

description: This folder contains all the original pictures, characterization data and calculation data contained in the text of the article, which are summarized in the PPT
description: This folder contains all the original pictures, characterization data and calculation data contained in the text of the article, which are summarized in the PPT
DOI: 10.57760/sciencedb.06048
title: Nitrogen-free commercial carbon cloth with rich defects for electrocatalytic ammonia synthesis under ambient conditions
title: 用富缺陷无氮商用碳布的环境条件下电催化合成氨

description: This folder contains all the original pictures and representation data and calculation data contained in the text, which are summarized in the PPT
description: This folder contains all the original pictures and representation data and calculation data contained in the text, which are summarized in the PPT
DOI: 10.57760/sciencedb.06052
title: Bacterial cellulose-regulated synthesis of metallic Ni catalysts for high-efficiency electrosynthesis of hydrogen peroxide
title: 细菌纤维素调控合成金属镍催化剂用于高效电合成过氧化氢

description: original data
description: original data