您的检索：
学者姓名：陈戈
精炼检索结果：
年份
成果类型
收录类型
来源
综合
曾用名
合作者
语言
清除所有精炼条件
摘要 ：
一种用于电解水氧化合成过氧化氢的碳基催化剂的制备方法涉及电催化领域，解决现有催化剂过电位高，选择性低，产率不足，产量无法达到工业生产水平的问题。本发明采用的是高温煅烧法，通过控制材料煅烧条件，仅改变所添加聚四氟乙烯与三聚氰胺的用量比，就能得到具有3D结构形貌的高产率低过电位的碳基催化材料，更大的相对表面积及空间个异性使得电子快速传输和逸出。元素F掺杂降低了电荷转移势垒，加速了电子‑空穴的分离和迁移，量子效率显著增加，同时改变了三相界面疏水性能，有效抑制副反应，选择性得以提升。
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | 陈戈 , 曹会选 . 一种用于电解水氧化合成过氧化氢的碳基催化剂的制备方法 : CN202310138624.9[P]. | 2023-02-20 . |
| MLA | 陈戈 等. "一种用于电解水氧化合成过氧化氢的碳基催化剂的制备方法" : CN202310138624.9. | 2023-02-20 . |
| APA | 陈戈 , 曹会选 . 一种用于电解水氧化合成过氧化氢的碳基催化剂的制备方法 : CN202310138624.9. | 2023-02-20 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
一种基于分子尺度设计的原子层沉积法制备碳基电催化剂的方法涉及电催化领域，解决现有合成方法步骤繁杂，控制条件多，材料不稳定，导电性能较差及产率较低等问题。本发明采用高温煅烧法制备疏水碳材料基底，采用原子层沉积法对材料进行进一步的表面改性，仅改变所沉积前驱体Ti的沉积圈数即可制备出一系列催化剂。通过F、Ti双掺杂对分子层面活性位点的调控，影响三相界面反应路径，降低电荷转移的势垒，量子效率显著增加，同时，结构致密且厚度可控的沉积层在保证催化剂电解性能的同时，对材料循环稳定性也有很大提升。出于对工业化应用中的实际需求考虑，本发明是一种原料低廉易得且结构稳定的适用于生产实践的碳基催化剂制备方法。
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | 陈戈 , 曹会选 . 一种基于分子尺度设计的原子层沉积法制备碳基电催化剂的方法 : CN202310138623.4[P]. | 2023-02-20 . |
| MLA | 陈戈 等. "一种基于分子尺度设计的原子层沉积法制备碳基电催化剂的方法" : CN202310138623.4. | 2023-02-20 . |
| APA | 陈戈 , 曹会选 . 一种基于分子尺度设计的原子层沉积法制备碳基电催化剂的方法 : CN202310138623.4. | 2023-02-20 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Developing oxide supports for stabilizing single-atom catalysts enables more flexibility for tuning the electronic metal-support interactions (EMSIs) toward better catalytic activities. However, due to the electronegativity of oxygen anions, single-metal atoms often remain positively charged in these oxide supports and are poor at binding hydrogen species for the hydrogen evolution reaction (HER). Here, we report a ligand charge donation-acquisition balance strategy via an amorphous TiBxOy support to tune the EMSIs, which lead to the boosted HER mass activity of a single Pt atom catalyst. Based on spectroscopic characterizations, we found that Pt single atoms preferentially bonded with nearly neutral B atoms originating from TiB2-like species in the Ti-B-O framework rather than O anions. Density functional theory calculations reveal that due to the charge-transfer balance between B-O and B-Pt, the nucleophilicity of Pt was tuned to an optimum state, with an ideal hydrogen binding energy that benefits the HER. As a result, this Pt/TiBxOy catalyst achieves a high HER mass activity (37.8 A mg(-1) Pt) and a turnover frequency (33.2 H-2 s(-1) Pt site(-1)) at an overpotential of 50 mV in an acid medium, outperforming commercial Pt/C by a factor of 34 and 33, respectively.
关键词 ：
single atom single atom charge transfer charge transfer amorphous support amorphous support hydrogen evolution reaction hydrogen evolution reaction electronic metal-support interactions electronic metal-support interactions
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Cheng, Xing , Xiao, Bo , Chen, Yanhui et al. Ligand Charge Donation-Acquisition Balance: A Unique Strategy to Boost Single Pt Atom Catalyst Mass Activity toward the Hydrogen Evolution Reaction [J]. | ACS CATALYSIS , 2022 , 12 (10) : 5970-5978 . |
| MLA | Cheng, Xing et al. "Ligand Charge Donation-Acquisition Balance: A Unique Strategy to Boost Single Pt Atom Catalyst Mass Activity toward the Hydrogen Evolution Reaction" . | ACS CATALYSIS 12 . 10 (2022) : 5970-5978 . |
| APA | Cheng, Xing , Xiao, Bo , Chen, Yanhui , Wang, Yueshuai , Zheng, Lirong , Lu, Yue et al. Ligand Charge Donation-Acquisition Balance: A Unique Strategy to Boost Single Pt Atom Catalyst Mass Activity toward the Hydrogen Evolution Reaction . | ACS CATALYSIS , 2022 , 12 (10) , 5970-5978 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
一种用于直接合成过氧化氢的钯基催化剂的制备方法属于多相催化领域，是用于以氢气和氧气为原料直接合成过氧化氢的新型钯基催化剂的方法。直接合成过氧化氢中现有的催化剂都是钯纳米颗粒，且过氧化氢产率和选择性一直很低。本发明的催化剂为二氧化钛负载的钯单原子，且贵金属钯的负载量仅为0.1wt％。该催化剂是通过将四氯钯酸钠前驱体添加到二氧化钛悬浮液中，待浸渍后离心洗涤得到。当用于以氢气和氧气为原料直接合成过氧化氢时，该催化剂的过氧化氢产率为115mol/kgcat/h，选择性大于99％，超过了以往专利报道的最高值，具有良好的工业应用前景。
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | 陈戈 , 余世明 , 于涵 . 一种用于直接合成过氧化氢的钯基催化剂的制备方法 : CN202210168066.6[P]. | 2022-02-23 . |
| MLA | 陈戈 et al. "一种用于直接合成过氧化氢的钯基催化剂的制备方法" : CN202210168066.6. | 2022-02-23 . |
| APA | 陈戈 , 余世明 , 于涵 . 一种用于直接合成过氧化氢的钯基催化剂的制备方法 : CN202210168066.6. | 2022-02-23 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
一种湿法制备铂基贵金属催化剂的方法属于多相催化领域，提供一种适用于工业化，绿色环保的高活性铂基催化剂的制备方法。用来克服现有合成方法步骤复杂，控制条件多，现有商业化铂基催化剂铂原子利用率低的缺点。本方法采用简单水热法，将前驱体的载体粉末合成前驱体材料，在采用管式炉在多种气体中煅烧最后进行研磨，造粒等操作得到高活性的Pt基催化剂材料。该材料在标准的一氧化碳氧化条件下，可以在90℃的低温条件下达到100％的一氧化碳氧化效率。此合成方法采用简单水热法合成，过于复杂的贵金属合成路线，提高了原材料的利用效率，降低了合成的成本，合成过程简单，是一条绿色简易的湿法合成路线，适用于工业大规模生产。
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | 陈戈 , 于涵 , 余世明 . 一种湿法制备铂基贵金属催化剂的方法 : CN202210168088.2[P]. | 2022-02-23 . |
| MLA | 陈戈 et al. "一种湿法制备铂基贵金属催化剂的方法" : CN202210168088.2. | 2022-02-23 . |
| APA | 陈戈 , 于涵 , 余世明 . 一种湿法制备铂基贵金属催化剂的方法 : CN202210168088.2. | 2022-02-23 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
The development of economical, highly active, and robust electrocatalysts for oxygen evolution reaction (OER) is one of the major obstacles for producing affordable water splitting systems and metal-air batteries. Herein, it is reported that the subnanometric CoOx clusters with high oxidation state substitutionally dispersed in the lattice of rutile TiO2 support (Co-TiO2) can be prepared by a thermally induced phase segregation process. Owing to the strong interaction of CoOx clusters and TiO2 support, Co-TiO2 exhibits both excellent intrinsic activity and durability for OER. The turnover frequency of Co-TiO2 is up to 3.250 s−1 at overpotentials of 350 mV; this value is one of the highest in terms of OER performance among the current Co-based active materials under similar testing conditions; moreover, the OER current density loss is only 6.5% at a constant overpotential of 400 mV for 30 000 s, which is superior to the benchmark Co3O4 and RuO2 catalysts. Mechanism analysis demonstrates that charge transfer occurs between Co sites and their neighboring Ti atoms, triggering the efficient Co-Ti cooperative catalytic centers, in which OH* and O* are preferred to be adsorbed on the bridging sites of Co and Ti with favorable adsorption energy, inducing a lower energy barrier for O2 generation. © 2020 Wiley-VCH GmbH
关键词 ：
Electrocatalysts Electrocatalysts Binary alloys Binary alloys Benchmarking Benchmarking Catalytic oxidation Catalytic oxidation Oxide minerals Oxide minerals Ruthenium compounds Ruthenium compounds Cobalt Cobalt Metal-air batteries Metal-air batteries Oxygen Oxygen Titanium Titanium Titanium dioxide Titanium dioxide Charge transfer Charge transfer Oxygen evolution reaction Oxygen evolution reaction
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Yan, Yong , Liu, Chunyue , Jian, Hanwen et al. Substitutionally Dispersed High-Oxidation CoOx Clusters in the Lattice of Rutile TiO2 Triggering Efficient Co-Ti Cooperative Catalytic Centers for Oxygen Evolution Reactions [J]. | Advanced Functional Materials , 2021 , 31 (9) . |
| MLA | Yan, Yong et al. "Substitutionally Dispersed High-Oxidation CoOx Clusters in the Lattice of Rutile TiO2 Triggering Efficient Co-Ti Cooperative Catalytic Centers for Oxygen Evolution Reactions" . | Advanced Functional Materials 31 . 9 (2021) . |
| APA | Yan, Yong , Liu, Chunyue , Jian, Hanwen , Cheng, Xing , Hu, Ting , Wang, Dong et al. Substitutionally Dispersed High-Oxidation CoOx Clusters in the Lattice of Rutile TiO2 Triggering Efficient Co-Ti Cooperative Catalytic Centers for Oxygen Evolution Reactions . | Advanced Functional Materials , 2021 , 31 (9) . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
In this study, we employed in situ liquid cell transmission electron microscopy (LC-TEM) to carry out a new design strategy of precisely regulating the microstructure of large-sized cocatalysts for highly efficient energy harvesting. This unique strategy was conducted by dynamically in situ monitoring the entire process of the galvanic replacement reaction between Cu nanowires and Au ion solutions to reveal the detailed microstructural evolution at the nanometer scale, which has never been achieved by conventional chemical methods. Based on the strategy, four kinds of cocatalysts were designed and fabricated, which have typical structural characteristics that correspond to different reaction stages. By coupling them with ultrafine photocatalysts to construct photocatalytic systems, the photocatalytic hydrogen production of the optimized system is 65 times higher than that of the counterpart photocatalysts, strongly demonstrating the feasibility of the design via in situ liquid cell TEM. The strategy here provides an innovative way to design new kinds of catalytic systems.
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Gao, Chunlang , Zhuang, Chunqiang , Li, Yuanli et al. In situ liquid cell transmission electron microscopy guiding the design of large-sized cocatalysts coupled with ultra-small photocatalysts for highly efficient energy harvesting [J]. | JOURNAL OF MATERIALS CHEMISTRY A , 2021 , 9 (22) : 13056-13064 . |
| MLA | Gao, Chunlang et al. "In situ liquid cell transmission electron microscopy guiding the design of large-sized cocatalysts coupled with ultra-small photocatalysts for highly efficient energy harvesting" . | JOURNAL OF MATERIALS CHEMISTRY A 9 . 22 (2021) : 13056-13064 . |
| APA | Gao, Chunlang , Zhuang, Chunqiang , Li, Yuanli , Qi, Heyang , Chen, Ge , Sun, Zaicheng et al. In situ liquid cell transmission electron microscopy guiding the design of large-sized cocatalysts coupled with ultra-small photocatalysts for highly efficient energy harvesting . | JOURNAL OF MATERIALS CHEMISTRY A , 2021 , 9 (22) , 13056-13064 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Engineering the local coordination environment in atomically dispersed catalyst has proven to be a prospective route to boost catalyst performance for hydrogen evolution reaction (HER). Herein, we present the utilization of local lattice distortion of TiO2 support to regulate the local coordination environment and electronic structures of atomically dispersed Pt catalysts, resulting in the enhanced performance toward HER. Spectral analysis uncovers an elongated Pt–O bond length, lower Pt–O coordination numbers, as well as less electron holes residing in Pt 5d orbitals for Pt species on distorted TiO2. Density functional theory (DFT) calculation reveal that the variation might weaken the hydrogen adsorption on Pt sites and cause the optimized ΔG value of H∗. As a result, the atomically dispersed Pt catalyst displays superior HER mass activity (62.34 A mg−1 Pt) and the highest turnover frequency (TOF) (56.1H2·s−1) at the 50 mV overpotential in an acid media that are 18.7 and 5.56 times higher than commercial Pt/C. The work should create a new avenue in manipulating the local coordination environment of catalysts via the lattice distortion of the support, and in pursuing desired catalytic performance. © 2021 Elsevier Ltd
关键词 ：
Coordination reactions Coordination reactions Catalyst supports Catalyst supports Electronic structure Electronic structure Density functional theory Density functional theory Bond length Bond length Hydrogen evolution reaction Hydrogen evolution reaction Platinum Platinum Gas adsorption Gas adsorption Spectrum analysis Spectrum analysis Oxide minerals Oxide minerals Hydrogen Hydrogen Titanium dioxide Titanium dioxide
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Cheng, Xing , Lu, Yue , Zheng, Lirong et al. Engineering local coordination environment of atomically dispersed platinum catalyst via lattice distortion of support for efficient hydrogen evolution reaction [J]. | Materials Today Energy , 2021 , 20 . |
| MLA | Cheng, Xing et al. "Engineering local coordination environment of atomically dispersed platinum catalyst via lattice distortion of support for efficient hydrogen evolution reaction" . | Materials Today Energy 20 (2021) . |
| APA | Cheng, Xing , Lu, Yue , Zheng, Lirong , Pupucevski, Max , Li, Hongyi , Chen, Ge et al. Engineering local coordination environment of atomically dispersed platinum catalyst via lattice distortion of support for efficient hydrogen evolution reaction . | Materials Today Energy , 2021 , 20 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Solar water evaporation is a sustainable and efficient way to produce fresh water. Identifying highly efficient photothermal materials is an important step for achieving high evaporation rates. However, the effects of the water interfacial area are rarely paid any attention, although a few reports have demonstrated high evaporation rates from micro-/nanostructured devices. In this work, we introduce a new term, water mass per unit surface area (WMUA), to connect the water mass and interfacial area. We can regulate WMUA using different commercial porous materials to realize water management in devices, which further affects the evaporation rates. The optimized device is composed of suedette sponge, filter paper, and polydopamine as the water-transportation, water-restrictive, and photothermal materials, respectively, and it achieves an evaporation rate of 1.8 kg m−2h−1and energy efficiency of ∼92%. This presents a new strategy for the rational design of device structures and the promotion of evaporation rates, pushing this field into new areas. © The Royal Society of Chemistry 2021.
关键词 ：
Materials handling Materials handling Porous materials Porous materials Water management Water management Oceanography Oceanography Energy efficiency Energy efficiency Evaporation Evaporation
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Sun, Yukun , Zong, Xupeng , Qu, Dan et al. Water management by hierarchical structures for highly efficient solar water evaporation [J]. | Journal of Materials Chemistry A , 2021 , 9 (11) : 7122-7128 . |
| MLA | Sun, Yukun et al. "Water management by hierarchical structures for highly efficient solar water evaporation" . | Journal of Materials Chemistry A 9 . 11 (2021) : 7122-7128 . |
| APA | Sun, Yukun , Zong, Xupeng , Qu, Dan , Chen, Ge , An, Li , Wang, Xiayan et al. Water management by hierarchical structures for highly efficient solar water evaporation . | Journal of Materials Chemistry A , 2021 , 9 (11) , 7122-7128 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
将微视频的创意及快速制作的特点与基础化学实验教学相结合,并以此为应用案例,探讨微视频技术在基础化学实验教学中的应用。微视频技术的应用有助于提升学习过程的趣味性、互动性,规范实验操作,进行探索性学习;同时促进学生之间的交流学习,深刻理解和掌握知识点,提升实验实践教学环节的投入产出效率。
关键词 ：
微视频技术 微视频技术 视频制作 视频制作 基础化学实验 基础化学实验
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | 赵煜娟 , 李钒 , 孙少瑞 et al. 微视频技术在基础化学实验教学中的应用探索 [J]. | 教育教学论坛 , 2020 , (51) : 389-390 . |
| MLA | 赵煜娟 et al. "微视频技术在基础化学实验教学中的应用探索" . | 教育教学论坛 51 (2020) : 389-390 . |
| APA | 赵煜娟 , 李钒 , 孙少瑞 , 陈戈 . 微视频技术在基础化学实验教学中的应用探索 . | 教育教学论坛 , 2020 , (51) , 389-390 . |
| 导入链接 | NoteExpress RIS BibTex |
导出
| 数据： |
选中 到 |
| 格式： |
