Query:
学者姓名:陈戈
Refining:
Year
Type
Indexed by
Source
Complex
Co-Author
Language
Clean All
Abstract :
Supported metal nanoparticle catalysts often suffer from sintering-induced size-dependent deactivation, limiting their high-temperature applications. Although high-temperature redispersion offers a potential solution, this strategy remains restricted to reducible support materials, severely limiting the selection of catalyst supports with versatile compositions and tunable functionalities. Here, we engineer cationic vacancies at Al2O3-La2O3 interface via strong oxide-support interaction (SOSI)-driven interfacial reconstruction during calcination. The vacancy-mediated confinement effect dynamically intercepts migrating Pt species, enabling the construction of Al2O3-Pt1-La2O3 structure with precisely defined coordination environments. The resulting catalyst achieves complete CO conversion at 145 degrees C and maintains stability with minimal decline after a 6-h treatment at 1100 degrees C in air with 10% steam. This interfacial engineering strategy proves universal, as demonstrated by ZrO2-La2O3 counterparts. Our findings break the reducibility dependency in traditional single-atom catalysts (SACs) stabilization by establishing oxide-oxide interface as universal anchoring platforms, which expands the design space of industrial-grade SACs beyond conventional reducible oxides.
Keyword :
CO oxidation CO oxidation Pt single atoms Pt single atoms Thermal stability Thermal stability Strong oxide-support interaction Strong oxide-support interaction Reconstructed oxide interface Reconstructed oxide interface
Cite:
Copy from the list or Export to your reference management。
| GB/T 7714 | Li, Shuzhen , Luo, Xuan , Wang, Yueshuai et al. Strong Oxide-Support Interaction Induced Thermal Stabilization of Pt Single Atoms for Durable Catalytic CO Oxidation [J]. | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION , 2025 , 64 (39) . |
| MLA | Li, Shuzhen et al. "Strong Oxide-Support Interaction Induced Thermal Stabilization of Pt Single Atoms for Durable Catalytic CO Oxidation" . | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 64 . 39 (2025) . |
| APA | Li, Shuzhen , Luo, Xuan , Wang, Yueshuai , Wang, Chaowei , Zhang, Guizhen , Xiang, Huixin et al. Strong Oxide-Support Interaction Induced Thermal Stabilization of Pt Single Atoms for Durable Catalytic CO Oxidation . | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION , 2025 , 64 (39) . |
| Export to | NoteExpress RIS BibTex |
Abstract :
Advancing the two-electron (2e-) oxygen reduction reaction (ORR) in acidic media is pivotal for sustainable, on-demand hydrogen peroxide (H2O2) production, but remains challenged by insufficient activity/selectivity at industrially relevant high current densities. We present a breakthrough catalyst design featuring cobalt atomic sites embedded in curved nitrogen-doped carbon layers (c-Co-N-C). This architecture achieves nearly 90 % H2O2 selectivity across a wide potential window, delivering 11.70 mol g-1 h-1 productivity at 300 mA cm-2 with 80 % Faraday efficiency in flow cell tests. Particularly, the catalyst maintains a stable 300 mA cm-2 operation under 1.9 V cell voltage (surpassing prior-art systems by 0.2 V) for 120 h in a PEM electrolyzer, producing pure-phase H2O2 (4.1 wt%). Through integrated experimental and computational analysis, we reveal two complementary enhancement mechanisms: first, the finite element simulations quantify the enhanced interfacial electric field that concentrates protons and dissolved oxygen; then, the density functional theory (DFT) calculations indicate a downshift in Co d-band center optimizes *OOH adsorption while suppressing O-O bond cleavage. This work establishes curvature engineering as a universal design strategy for advanced catalysts through controlled structural modification, opening new pathways for sustainable chemical synthesis.
Keyword :
PEM electrolyzer PEM electrolyzer Interfacial electric field Interfacial electric field Curved Co-N-C Curved Co-N-C 2e-ORR 2e-ORR
Cite:
Copy from the list or Export to your reference management。
| GB/T 7714 | Kong, Deqiang , Wang, Yueshuai , Yan, Yong et al. Breaking planar constraints: Curvature-tailored Co-N-C electrocatalysts for high-efficiency proton exchange membrane H2O2 production [J]. | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY , 2025 , 376 . |
| MLA | Kong, Deqiang et al. "Breaking planar constraints: Curvature-tailored Co-N-C electrocatalysts for high-efficiency proton exchange membrane H2O2 production" . | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY 376 (2025) . |
| APA | Kong, Deqiang , Wang, Yueshuai , Yan, Yong , Li, Zongge , Lu, Yue , Chen, Ge . Breaking planar constraints: Curvature-tailored Co-N-C electrocatalysts for high-efficiency proton exchange membrane H2O2 production . | APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY , 2025 , 376 . |
| Export to | NoteExpress RIS BibTex |
Abstract :
Direct synthesis of hydrogen peroxide (H2O2) from hydrogen (H-2) and oxygen (O-2) is an environmental-friendly and high atomic utilization process. Pd-based catalysts are the most effective catalysts, but encounter poor selectivity of H2O2 because both the O-2* hydrogenation and splitting occur on Pd sites. Here, we constructed Pd delta+ (0 < delta < 2) and SnOx clusters dual sites on TiO2 nanosheets. The Pd delta+-SnOx/TiO2 exhibits superior productivity of 119.5 mol Kg(cat)(-1) h(-1), achieving H2O2 selectivity of similar to 91.8 %, and yielding a pure H2O2 aqueous solution with a concentration of 0.34 wt% (98.5 mmol L-1), which is currently the highest reported in the direct synthesis of H2O2. In a methanol/water mixture, the productivity of H2O2 reaches 286 mol Kg(cat)(-1) h(-1), with a high selectivity of 94.2 % (concentration 0.53 wt%). Density functional theory (DFT) calculations reveal that the SnOx serve as active sites for O-2 non-dissociative activation, facilitating the formation of O-2* species. Adjacent Pd delta+ sites promote the H-2 dissociative activation and the two-step hydrogenation of O-2*, enhancing the intermediates OOH* and HOOH* formation. The results demonstrate that the dual-site synergistic effect is critical to breaking the activity-selectivity trade-off, providing new avenues for achieving high-performance Pd-based catalysts.
Keyword :
Pd delta+-SnOx cluster Pd delta+-SnOx cluster Dual-site Dual-site Synergistic effect Synergistic effect Direct H(2)O(2 )synthesis Direct H(2)O(2 )synthesis
Cite:
Copy from the list or Export to your reference management。
| GB/T 7714 | Liu, Ruilin , Wang, Yueshuai , Yan, Yong et al. Breaking activity-selectivity trade-off by fabricating Pdδ+-SnOx dual sites for direct synthesis of H2O2 aqueous solution [J]. | CHEMICAL ENGINEERING JOURNAL , 2025 , 513 . |
| MLA | Liu, Ruilin et al. "Breaking activity-selectivity trade-off by fabricating Pdδ+-SnOx dual sites for direct synthesis of H2O2 aqueous solution" . | CHEMICAL ENGINEERING JOURNAL 513 (2025) . |
| APA | Liu, Ruilin , Wang, Yueshuai , Yan, Yong , Lu, Yue , Chen, Ge . Breaking activity-selectivity trade-off by fabricating Pdδ+-SnOx dual sites for direct synthesis of H2O2 aqueous solution . | CHEMICAL ENGINEERING JOURNAL , 2025 , 513 . |
| Export to | NoteExpress RIS BibTex |
Abstract :
The reverse water-gas shift (RWGS) reaction holds promise for producing high value-added CO from CO2, serving as a crucial intermediate to feedstock for producing various hydrocarbons through Fischer-Tropsch synthesis reactions. Metallic catalysts often yield significant methane production as a by-product during operation, whereas non-metallic oxide catalysts offer potential for high CO selectivity. We prepare Al doped CeO2 nanorod by atomic layer deposition (ALD). The incorporation of Al creates more oxygen vacancies on the surface, resulting in increased Frustrated Lewis Pair (FLP) sites. Particularly, the CO yield of ALD-modified CeO2 was enhanced by 134 % compared to that of pristine CeO2 nanorods (CeO2-NR) at 500 degrees C, with CO selectivity reached 100 %. Density Functional Theory (DFT) calculations reveal a lower energy barrier for H2 dissociation facilitated by the formation of FLP sites, potentially leading to heightened activity in the Reverse Water Gas Shift (RWGS) reaction.
Keyword :
Atomic layer deposition Atomic layer deposition Frustrated Lewis Pairs Frustrated Lewis Pairs CO2 hydrogenation CO2 hydrogenation RWGS reaction RWGS reaction
Cite:
Copy from the list or Export to your reference management。
| GB/T 7714 | Feng, Boyuan , Li, Shuzhen , Zhang, Long et al. Frustrated Lewis pairs on Al-doped CeO2 for efficient reverse water-gas shift reaction [J]. | APPLIED SURFACE SCIENCE , 2024 , 669 . |
| MLA | Feng, Boyuan et al. "Frustrated Lewis pairs on Al-doped CeO2 for efficient reverse water-gas shift reaction" . | APPLIED SURFACE SCIENCE 669 (2024) . |
| APA | Feng, Boyuan , Li, Shuzhen , Zhang, Long , Zhang, Guizhen , Chen, Ge . Frustrated Lewis pairs on Al-doped CeO2 for efficient reverse water-gas shift reaction . | APPLIED SURFACE SCIENCE , 2024 , 669 . |
| Export to | NoteExpress RIS BibTex |
Abstract :
Hydrogen peroxide (H2O2) is a versatile and zero-emission material that is widely used in the industrial, domestic, and healthcare sectors. It is clear that it plays a critical role in advancing environmental sustainability, acting as a green energy source, and protecting human health. Conventional production techniques focused on anthraquinone oxidation, however, electrocatalytic synthesis has arisen as a means of utilizing renewable energy sources in conjunction with available resources like oxygen and water. These strides represent a substantial change toward more environmentally and energy-friendly H2O2 manufacturing techniques that are in line with current environmental and energy goals. This work reviews recent advances in two-electron water oxidation reaction (2e-WOR) electrocatalysts, including design principles and reaction mechanisms, examines catalyst design alternatives and experimental characterization techniques, proposes standardized assessment criteria, investigates the impact of the interfacial milieu on the reaction, and discusses the value of in situ characterization and molecular dynamics simulations as a supplement to traditional experimental techniques and theoretical simulations, as shown in Figure 1. The review also emphasizes the importance of device design, interface, and surface engineering in improving the production of H2O2. Through adjustments to the chemical microenvironment, catalysts can demonstrate improved performance, opening the door for commercial applications that are scalable through tandem cell development.
Keyword :
Interface Interface H2O2 H2O2 Electrolyte Electrolyte Electrocatalyst Electrocatalyst 2e-WOR 2e-WOR
Cite:
Copy from the list or Export to your reference management。
| GB/T 7714 | Cao, Huixuan , Chen, Ge , Yan, Yong et al. Advances in Two-Electron Water Oxidation Reaction for Hydrogen Peroxide Production: Catalyst Design and Interface Engineering [J]. | CHEMSUSCHEM , 2024 , 18 (2) . |
| MLA | Cao, Huixuan et al. "Advances in Two-Electron Water Oxidation Reaction for Hydrogen Peroxide Production: Catalyst Design and Interface Engineering" . | CHEMSUSCHEM 18 . 2 (2024) . |
| APA | Cao, Huixuan , Chen, Ge , Yan, Yong , Wang, Dong . Advances in Two-Electron Water Oxidation Reaction for Hydrogen Peroxide Production: Catalyst Design and Interface Engineering . | CHEMSUSCHEM , 2024 , 18 (2) . |
| Export to | NoteExpress RIS BibTex |
Abstract :
The structure and electronic state of the active center in a single-atom catalyst undergo noticeable changes during a dynamic catalytic process. The metal atom active center is not well demonstrated in a dynamic manner. This study demonstrated that Li metal atoms, serving as active centers, can migrate on a C3N4 monolayer or between C3N4 monolayers when exposed to light irradiation. This migration alters the local coordination environment of Li in the C3N4 nanosheets, leading to a significant enhancement in photocatalytic activity. The photocatalytic H2O2 process could be maintained for 35 h with a 920 mmol/g record-high yield, corresponding to a 0.4% H2O2 concentration, which is far greater than the value (0.1%) of practical application for wastewater treatment. Density functional theory calculations indicated that dynamic Li-coordinated structures contributed to the superhigh photocatalytic activity.
Keyword :
Oxygen reductionreaction Oxygen reductionreaction Dynamic active center Dynamic active center Coordinationenvironment Coordinationenvironment Single-atom catalyst Single-atom catalyst Photocatalytic H2O2 Photocatalytic H2O2
Cite:
Copy from the list or Export to your reference management。
| GB/T 7714 | Zhuang, Chunqiang , Chang, Yuan , Li, Weiming et al. Light-Induced Variation of Lithium Coordination Environment in g-C3N4 Nanosheet for Highly Efficient Oxygen Reduction Reactions [J]. | ACS NANO , 2024 , 18 (6) : 5206-5217 . |
| MLA | Zhuang, Chunqiang et al. "Light-Induced Variation of Lithium Coordination Environment in g-C3N4 Nanosheet for Highly Efficient Oxygen Reduction Reactions" . | ACS NANO 18 . 6 (2024) : 5206-5217 . |
| APA | Zhuang, Chunqiang , Chang, Yuan , Li, Weiming , Li, Shijie , Xu, Peng , Zhang, Hang et al. Light-Induced Variation of Lithium Coordination Environment in g-C3N4 Nanosheet for Highly Efficient Oxygen Reduction Reactions . | ACS NANO , 2024 , 18 (6) , 5206-5217 . |
| Export to | NoteExpress RIS BibTex |
Abstract :
Stability has always been the main limiting problem for developing oxygen reduction reaction (ORR) catalysts practically. A PdZnBi alloy ORR catalyst with an interlayer-riveted carbon shell encapsulation structure is synthesized using small molecule in situ confinement effects. Meanwhile, the reaction molecular dynamics (RMD) method presents and reveals the mechanism of acetic acid molecules forming a uniform thin carbon layer on the metal surface during heat treatment. The riveted porous carbon shell structure allows rapid electron and mass transfer and acts as a protective layer that limits alloy surface oxidation and maintains the initial catalyst structure. The catalyst exhibits excellent ORR durability, with an initial mass activity (MA) of 94% after 60 000 cycles of accelerated durability tests (ADTs), and is applied to zinc-air batteries and exhibits high current density discharge stability (>100 h, 100 mA cm-2).
Cite:
Copy from the list or Export to your reference management。
| GB/T 7714 | Chang, Liyuan , Zhou, Kailing , Si, Weihan et al. In situ confined synthesis of an interlayer-riveted carbon shell encapsulated PdZnBi alloy as a highly active and durable oxygen reduction reaction catalyst [J]. | JOURNAL OF MATERIALS CHEMISTRY A , 2024 , 12 (14) : 8194-8204 . |
| MLA | Chang, Liyuan et al. "In situ confined synthesis of an interlayer-riveted carbon shell encapsulated PdZnBi alloy as a highly active and durable oxygen reduction reaction catalyst" . | JOURNAL OF MATERIALS CHEMISTRY A 12 . 14 (2024) : 8194-8204 . |
| APA | Chang, Liyuan , Zhou, Kailing , Si, Weihan , Wang, Chao , Wang, Changhao , Zhang, Manchen et al. In situ confined synthesis of an interlayer-riveted carbon shell encapsulated PdZnBi alloy as a highly active and durable oxygen reduction reaction catalyst . | JOURNAL OF MATERIALS CHEMISTRY A , 2024 , 12 (14) , 8194-8204 . |
| Export to | NoteExpress RIS BibTex |
Abstract :
The direct hydrogen peroxide (H2O2) product from H-2 and O-2 is a promising anthraquinone replacement because it is environmentally friendly and has a high atom efficiency. Experimental and theoretical studies have proven that optimizing the adsorption of the critical intermediate OOH* on the metal site significantly promotes the further protonation of this intermediate and inhibits the O-O bond cleavage, thus enhancing the activity and selectivity. Redistributing the charge density of active sites to tuning the d-band center of the metal could effectively modulate the intermediates adsorption, and thus regulate the catalytic efficiency. Herein, we show that a Lewis acid (ZnCl2 solution) induces abundant oxygen vacancies (Ovs) on the TiO2 surface, which results in a reversal of charge transfer from TiO2-Ov support to the Pd atom, generating an electron-rich Pd configuration. Compared with pristine Pd/TiO2, Pd/TiO2-Ov possesses higher H2O2 selectivity and productivity, with values of 80.7% and 186 mol kg(cat)(-1) h(-1), respectively. In addition, Pd/TiO2-Ov maintains stability during the six cycles reaction due to its high resistance to the leaching of Pd species. Theoretical calculations reveal that the reversed charge transfer downshifts the d-band center of Pd, which promotes O-2 adsorption on the Pd surface and weakens the OOH* intermediates adsorption. Thus, the energy barrier for the hydrogenation of the OOH* intermediate is significantly decreased, and the O-O band cleavage is inhibited. This study reports a reversal of charge transfer tuning the d-band center of the active site for efficient direct H2O2 synthesis, which may provide insight for designing high-performance catalysts.
Keyword :
electronic-rich Pd surface electronic-rich Pd surface adsorption energy of OOH* adsorption energy of OOH* d-bandcenter d-bandcenter direct H2O2 synthesis direct H2O2 synthesis reversedcharge transfer reversedcharge transfer
Cite:
Copy from the list or Export to your reference management。
| GB/T 7714 | Liu, Ruilin , Wang, Chao , Yan, Yong et al. Reversed Charge Transfer to Modulate the d-Band Center of Pd for Efficient Direct H2O2 Synthesis [J]. | ACS CATALYSIS , 2024 , 14 (6) : 3955-3965 . |
| MLA | Liu, Ruilin et al. "Reversed Charge Transfer to Modulate the d-Band Center of Pd for Efficient Direct H2O2 Synthesis" . | ACS CATALYSIS 14 . 6 (2024) : 3955-3965 . |
| APA | Liu, Ruilin , Wang, Chao , Yan, Yong , Wang, Ruzhi , Chen, Ge . Reversed Charge Transfer to Modulate the d-Band Center of Pd for Efficient Direct H2O2 Synthesis . | ACS CATALYSIS , 2024 , 14 (6) , 3955-3965 . |
| Export to | NoteExpress RIS BibTex |
Abstract :
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。
Cite:
Copy from the list or Export to your reference management。
| 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 et al. "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 . |
| Export to | NoteExpress RIS BibTex |
Abstract :
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。
Cite:
Copy from the list or Export to your reference management。
| 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 et al. "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 . |
| Export to | NoteExpress RIS BibTex |
Export
| Results: |
Selected to |
| Format: |