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学者姓名：次素琴
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Abstract ：
In this work, morphological control with a series of sulfur-vacancy-rich CdS photocatalysts has been achieved toward the optimization of their performances in CO2 photoreduction. Results show that sulfur-vacancy-rich CdS nano-platelets (p-CdS-Vs) exhibit the highest CO2 photoreduction activity with a CO yield of 4058.5 mu mol h-1 g-1, which is 10 and 6 times those of sulfur-vacancy-rich CdS nanowires (w-CdS-Vs, 372.8 mu mol h-1 g-1) and nanorods (r-CdS-Vs, 638.7 mu mol h-1 g-1), respectively, amongst the highest numbers for CdS-based photocatalysts reported hitherto. The superior CO2 photoreduction performance of p-CdS-Vs is attributable to its high efficiency of electron transport and suppressed recombination of photogenerated charge carriers. A mechanistic study indicates the critical role of surface sulfur vacancies that provide a microenvironment to trap unpaired electrons for the separation of photogenerated carriers so that the photocatalytic efficiency of CO2-to-CO reduction is largely improved in this current system.
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| GB/T 7714 | Qiu, Lu-Wen , Zhang, Wen-Ni , Wang, Lin-Ying et al. Morphological regulation of sulfur-vacancy-rich CdS for tunable CO2 photoreduction under visible light irradiation [J]. | INORGANIC CHEMISTRY FRONTIERS , 2025 , 12 (8) : 3110-3117 . |
| MLA | Qiu, Lu-Wen et al. "Morphological regulation of sulfur-vacancy-rich CdS for tunable CO2 photoreduction under visible light irradiation" . | INORGANIC CHEMISTRY FRONTIERS 12 . 8 (2025) : 3110-3117 . |
| APA | Qiu, Lu-Wen , Zhang, Wen-Ni , Wang, Lin-Ying , Li, Hao , Zhang, Tian-Kuan , Lin, Mi-Xin et al. Morphological regulation of sulfur-vacancy-rich CdS for tunable CO2 photoreduction under visible light irradiation . | INORGANIC CHEMISTRY FRONTIERS , 2025 , 12 (8) , 3110-3117 . |
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Microbial Fuel Cells (MFCs) are bioelectrochemical devices that use microorganisms to oxidize organic compounds at the anode, pairing with cathodic oxidation-reduction reaction. Here, we propose an innovative MFCs that integrates anodic organic degradation with H2O2 production at the cathode through the two-electron oxygen reduction reaction(2e-ORR), facilitating direct disinfection of anode water. To this end, a highly efficient In2O3/ rGO-2 catalyst toward the 2e-ORR has been designed and prepared as the cathode of MFCs, achieving a remarkable 100 % Faraday efficiency for H2O2 production in a gas diffusion electrode-based flow electrolytic cell. In situ FTIR and Density Functional Theory calculations reveal that this favorable 2e-ORR activity operates through a multi-channel mechanism. Moreover, the gas diffusion electrode-based flow MFCs demonstrates the capability to produce H2O2 at a rate of 14.84 mg L-1 h-1 while achieving a power density of 1455.82 mW m-2. Notably, the generated H2O2 is particularly effective for disinfecting the anode effluent.
Keyword ：
Cathode catalyst Cathode catalyst Disinfection Disinfection Gas diffusion electrode Gas diffusion electrode Microbial fuel cells Microbial fuel cells Two-electron oxygen reduction reaction Two-electron oxygen reduction reaction
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| GB/T 7714 | Xiao, Jun , Yu, Shenjie , Wang, Haijian et al. Enhanced efficiency in organic wastewater treatment by synergetic cathodic produced H2O2 and anodic oxidation [J]. | RENEWABLE ENERGY , 2025 , 256 . |
| MLA | Xiao, Jun et al. "Enhanced efficiency in organic wastewater treatment by synergetic cathodic produced H2O2 and anodic oxidation" . | RENEWABLE ENERGY 256 (2025) . |
| APA | Xiao, Jun , Yu, Shenjie , Wang, Haijian , Pan, Duo , Li, Tianmi , Yang, Juan et al. Enhanced efficiency in organic wastewater treatment by synergetic cathodic produced H2O2 and anodic oxidation . | RENEWABLE ENERGY , 2025 , 256 . |
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Formaldehyde (HCHO), a promising yet challenging hydrogen carrier, offers a unique opportunity for efficient hydrogen generation through electro-oxidation, simultaneously eliminating harmful HCHO and contributing to environmental sustainability. This study rises to the challenge by pioneering a hybrid acid/alkali formaldehyde hydrogen production fuel cell (h-AAFHFC), an integrated system that integrates anodic partial electro-reforming of aldehydes at low potential with the cathodic hydrogen evolution reaction (HER). The device introduces a new self-powered paradigm for hydrogen generation, driven by electrochemical neutralization energy (ENE), featuring high Faradaic efficiency for hydrogen production, co-generation of electricity, and HCOOH. The h-AAFHFC attains an open-circuit voltage (OCV) of 1.11 V and a peak power density of 94 mW cm-2, enabling simultaneous hydrogen production at both electrodes with an extraordinary Faradaic efficiency of approximately 200%. This breakthrough marks a transformative shift, moving from traditional electricity-driven systems to self-sustaining H2 generation. Our work demonstrates a promising pathway for sustainable hydrogen production, advancing the potential of clean hydrogen energy technologies.
Keyword ：
Electrocatalysis Electrocatalysis Electro-reforming of aldehydes Electro-reforming of aldehydes High Faradaic efficiency High Faradaic efficiency Hybrid acid/alkali fuel cell Hybrid acid/alkali fuel cell Self-powered hydrogen generation Self-powered hydrogen generation
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| GB/T 7714 | Hu, Fen , Chen, Kai , Lu, Zhiwen et al. Self-Powered Electrocatalytic Aldehyde Reforming Fuel Cell for Sustainable H2 Generation with ∼200% Faradaic Efficiency [J]. | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION , 2025 , 64 (26) . |
| MLA | Hu, Fen et al. "Self-Powered Electrocatalytic Aldehyde Reforming Fuel Cell for Sustainable H2 Generation with ∼200% Faradaic Efficiency" . | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 64 . 26 (2025) . |
| APA | Hu, Fen , Chen, Kai , Lu, Zhiwen , Gao, Jiyuan , Lan, Senchen , Chen, Junxiang et al. Self-Powered Electrocatalytic Aldehyde Reforming Fuel Cell for Sustainable H2 Generation with ∼200% Faradaic Efficiency . | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION , 2025 , 64 (26) . |
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Advancing fuel cell technology hinges on developing stable, efficient Pt-based catalysts for the oxygen reduction reaction (ORR), yet challenges like the high cost and limited durability of Pt-based materials persist. Here, we present an electrocatalyst that harnesses the strong interaction between Fe single atoms and neighboring ordered PtCo alloys (O-PtCo-FeNC) confined in microporous carbon. The unique coordination of FeN3 sites with PtCo intermetallic compounds enables precise optimization of the catalyst size and structure, boosting PtCo intermetallic activity and yielding exceptional ORR performance. This is verified by a half-wave potential of 0.86 V vs. RHE in 0.5 M H2SO4 and a mass activity of 1.34 A mgPt-1, which is an 8.1-fold improvement compared to that of Pt/C, while maintaining exceptional durability for over 50 000 cycles. In situ characterization and theoretical calculations reveal that isolated Fe sites reduce the d-band center of neighboring Pt sites, weakening adsorption energy and synergistically enhancing both activity and stability. When deployed in the air cathode of a hybrid acid/alkali Zn-air battery, the catalyst delivers an outstanding open circuit voltage of 2.32 V and a peak power density of 751 mW cm-2. This integration of intermetallic compounds with single-atom sites establishes a new benchmark for advanced ORR electrocatalysts, marking a significant advancement in fuel cell technology.
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| GB/T 7714 | Chen, Kai , Huang, Junheng , Chen, Junxiang et al. Neighboring iron single atomic sites boost PtCo intermetallic activity for high-durability ORR electrocatalysis [J]. | ENERGY & ENVIRONMENTAL SCIENCE , 2025 , 18 (13) : 6732-6743 . |
| MLA | Chen, Kai et al. "Neighboring iron single atomic sites boost PtCo intermetallic activity for high-durability ORR electrocatalysis" . | ENERGY & ENVIRONMENTAL SCIENCE 18 . 13 (2025) : 6732-6743 . |
| APA | Chen, Kai , Huang, Junheng , Chen, Junxiang , Gao, Jiyuan , Lu, Zhiwen , Liu, Xi et al. Neighboring iron single atomic sites boost PtCo intermetallic activity for high-durability ORR electrocatalysis . | ENERGY & ENVIRONMENTAL SCIENCE , 2025 , 18 (13) , 6732-6743 . |
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Global nitrate pollution poses a significant challenge to ecological water systems. The electrocatalytic treatment of nitrate wastewater, coupled with high-value ammonia production, offers a promising solution. Herein, we have developed a copper-based cobalt catalyst, Co@CF, using in situ electrodeposition, achieving a faradaic efficiency of 92.49% for catalytic ammonia production and an ammonia yield of 5.99 mg h-1 cm-2. As a bifunctional catalyst, Co@CF also demonstrates excellent performance in catalyzing methanol oxidation to produce formic acid. Coupling the methanol oxidation reaction (MOR) with the nitrate reduction reaction (NO3RR) significantly enhances the faradaic efficiency and yield of ammonia production to 95.16% and 7.51 mg h-1 cm-2, respectively, while achieving an anodic formic acid production efficiency of 91.74% and a yield of 18.53 mg h-1 cm-2. Moreover, the coupling system maintains excellent catalytic performance for ammonia synthesis over 60 h. In situ Raman spectroscopy reveals that Co2+ and Co3+ in Co@CF consume OH- from hydrolysis, allowing H+ to participate in the hydrogenation of intermediate species during NO3- reduction, thereby enhancing ammonia selectivity. This study presents an effective strategy for the clean and efficient conversion of nitrate to ammonia, offering a promising approach for sustainable ammonia synthesis.
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| GB/T 7714 | Cheng, Xunniu , Xie, Zixuan , Zha, Shilin et al. Sustainable ammonia production from nitrate reduction assisted by methanol oxidation using Co@CF bifunctional electrocatalysts [J]. | JOURNAL OF MATERIALS CHEMISTRY A , 2025 , 13 (18) : 13286-13294 . |
| MLA | Cheng, Xunniu et al. "Sustainable ammonia production from nitrate reduction assisted by methanol oxidation using Co@CF bifunctional electrocatalysts" . | JOURNAL OF MATERIALS CHEMISTRY A 13 . 18 (2025) : 13286-13294 . |
| APA | Cheng, Xunniu , Xie, Zixuan , Zha, Shilin , Xu, Qiuhua , Ci, Suqin , Wen, Zhenhai . Sustainable ammonia production from nitrate reduction assisted by methanol oxidation using Co@CF bifunctional electrocatalysts . | JOURNAL OF MATERIALS CHEMISTRY A , 2025 , 13 (18) , 13286-13294 . |
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By combining the thermodynamically more favorable methanol oxidation reaction (MOR) with the hydrogen evolution reaction (HER) in seawater, it is of great significance for obtaining pure hydrogen and high-value chemicals at the same time with lower energy consumption. Herein, a bifunctional catalyst CoMoO4@- MoP-CoP/NF, with a crystal/amorphous coupling heterostructure is successfully synthesized on a nickel foam substrate by hydrothermal-phosphating method. Notably, the CoMoO4@MoP-CoP/NF catalyst exhibits excellent HER performance under alkaline seawater conditions, reaching a current density of 100 mA cm-2 with an overpotential of only 196 mV vs. RHE. Additionally, it shows high activity for MOR under alkaline conditions, achieving 100 mA cm-2 at 1.43 V vs. RHE. Meanwhile, the catalyst also demonstrates an impressive formate Faradaic efficiency (FE) of 90 % for methanol oxidation that is consistent with the analysis of in situ Raman spectroscopy, in which the transformation of CoOOH further promoted the formation of HCOOH. The assembled hybrid seawater electrolyzer combines thermodynamically favorable methanol oxidation with cathodic seawater reduction to achieve a current density of 10 mA cm-2 at only 1.26 V, which is significantly lower than the conventional seawater electrolyzer system that requires 1.55 V. In addition, the electrolyzer can operate stably for up to 200 h at a current density of 100 mA cm-2, facilitating sustainable hydrogen production. This hybrid seawater electrolyzer provides a solid foundation for the efficient production of hydrogen from seawater and shows great economic potential.
Keyword ：
CoMoO4@MoP-CoP/NF CoMoO4@MoP-CoP/NF Hybrid seawater electrolyzer system Hybrid seawater electrolyzer system Hydrogen evolution reaction Hydrogen evolution reaction Methanol oxidation reaction Methanol oxidation reaction Oxygen evolution reaction Oxygen evolution reaction
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| GB/T 7714 | Qiao, Sen , Rao, Chaoming , Chen, Haiyan et al. Bifunctional crystal-amorphous CoMoO4@MoP-CoP/NF with enhanced methanol oxidation for efficient hydrogen production via hybrid seawater electrolysis [J]. | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , 2025 , 145 : 842-850 . |
| MLA | Qiao, Sen et al. "Bifunctional crystal-amorphous CoMoO4@MoP-CoP/NF with enhanced methanol oxidation for efficient hydrogen production via hybrid seawater electrolysis" . | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 145 (2025) : 842-850 . |
| APA | Qiao, Sen , Rao, Chaoming , Chen, Haiyan , Xiong, Min , Han, Wei , Xu, Qiuhua et al. Bifunctional crystal-amorphous CoMoO4@MoP-CoP/NF with enhanced methanol oxidation for efficient hydrogen production via hybrid seawater electrolysis . | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , 2025 , 145 , 842-850 . |
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Electrochemical water splitting offers a sustainable route to green hydrogen but is constrained by the sluggish and energy-intensive oxygen evolution reaction (OER), prompting the search for alternative anodic pathways. Here, we report a hybrid acid/alkali self-sustaining electrolysis system that couples the kinetically favorable sulfion oxidation reaction (SOR) at the anode with hydrogen evolution reaction (HER) at the cathode, enabling simultaneous hydrogen production and sulfur recovery. A cobalt phosphide catalyst supported on nickel foam (CoxP/NF) serves as an efficient bifunctional electrocatalyst, achieving 100 mA cm(-2) at only 0.386 V for SOR and maintaining similar to 0.23 V for HER. When implemented in a hybrid electrolyzer, CoxP/NF drives hydrogen generation at 100 mA cm(-2) with an ultralow voltage of 0.14 V, significantly outperforming conventional SOR-HER (1.05 V) and overall water splitting (2.13 V). The system exhibits excellent stability over 140 h and effectively converts toxic S2- into elemental sulfur, offering a dual benefit of pollutant remediation and resource recovery. Notably, the integrated hybrid battery achieves a peak power density of 12.4 mW cm(-2), co-generating hydrogen and electricity. First-principles calculations reveal that SOR and HER are preferentially catalyzed by the CoP(201) and Co2P(020) facets, respectively, elucidating the facet-dependent bifunctionality of the catalyst.
Keyword ：
Bifunctional electrocatalyst Bifunctional electrocatalyst Hybrid acid/alkali battery Hybrid acid/alkali battery Hydrogen evolution reaction Hydrogen evolution reaction Self-powered device Self-powered device Sulfion oxidation reaction Sulfion oxidation reaction
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| GB/T 7714 | Chen, Haiyan , Xiong, Min , Qiao, Sen et al. Trifecta hybrid electrolysis via facet-engineered CoxP for the co-production of hydrogen, electricity, and recovered sulfur [J]. | CHEMICAL ENGINEERING JOURNAL , 2025 , 524 . |
| MLA | Chen, Haiyan et al. "Trifecta hybrid electrolysis via facet-engineered CoxP for the co-production of hydrogen, electricity, and recovered sulfur" . | CHEMICAL ENGINEERING JOURNAL 524 (2025) . |
| APA | Chen, Haiyan , Xiong, Min , Qiao, Sen , Wu, Songjiang , Rao, Chaoming , Luo, Guangfu et al. Trifecta hybrid electrolysis via facet-engineered CoxP for the co-production of hydrogen, electricity, and recovered sulfur . | CHEMICAL ENGINEERING JOURNAL , 2025 , 524 . |
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Rechargeable Zn-air batteries (RZABs) and microbial fuel cells (MFCs) are gaining significant attention as highly promising energy storage technologies due to their compelling cost-effectiveness, extraordinary energy density, environmentally friendly nature, and an exceptional safety profile. Designing a cost-effective, highly efficient, and long-lasting bifunctional electrocatalyst for both the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER) is a remarkable yet challenging endeavor. Transition metal oxide (TMO)-based electrocatalysts are poised to emerge as formidable contenders to well-established noble metal catalysts. In our research, we have developed a concise and refined method to fabricate a carbon-based material doped with N and S and infused with gamma-Fe2O3. This design has yielded the gamma-Fe2O3@SNC-800 catalyst, exhibiting exceptional catalytic performance comparable to Pt/C and RuO2, especially with an ORR half-wave potential (E-1/2) of 0.849 V vs. RHE and an OER onset potential of 1.57 V at a current density of 10 mA cm(-2) in alkaline environments. One particularly noteworthy observation is the use of gamma-Fe2O3@SNCs-800 as the cathode catalyst in RZABs, where it demonstrates a remarkable peak power density of 214.3 mW cm(-2) and impressive charge-discharge cycling stability lasting up to 133 h. Additionally, this catalyst material exhibits superior energy density and sustains extended continuous operation when integrated into the cathode of MFCs. Finally, the utilization of density functional theory (DFT) calculations provides compelling theoretical support, enabling a profound understanding of the electrocatalytic performance mechanism during the ORR. Our results suggest a straightforward approach for developing efficient bifunctional electrocatalysts for different-scenario fuel cells.
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| GB/T 7714 | Zhou, Xintao , Wu, Mingyang , Chen, Kai et al. γ-Fe2O3 decorating N,S co-doped carbon nanosheets as a cathode electrocatalyst for different-scenario fuel cells [J]. | INORGANIC CHEMISTRY FRONTIERS , 2024 , 11 (15) : 4625-4637 . |
| MLA | Zhou, Xintao et al. "γ-Fe2O3 decorating N,S co-doped carbon nanosheets as a cathode electrocatalyst for different-scenario fuel cells" . | INORGANIC CHEMISTRY FRONTIERS 11 . 15 (2024) : 4625-4637 . |
| APA | Zhou, Xintao , Wu, Mingyang , Chen, Kai , Wang, Haijian , Wen, Zhenhai , Ci, Suqin . γ-Fe2O3 decorating N,S co-doped carbon nanosheets as a cathode electrocatalyst for different-scenario fuel cells . | INORGANIC CHEMISTRY FRONTIERS , 2024 , 11 (15) , 4625-4637 . |
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The construction of crystalline-amorphous coupling structure is one of the effective strategies to enhance the performance of oxygen evolution reaction (OER) and urea oxidation reaction (UOR). Herein, NiFe-LDH/ NiMoO4/NF with high oxygen evolution and urea oxidation performance was successfully prepared by electrodeposition of amorphous substances on the crystalline precursor of hydrothermal synthesis. Remarkably, the NiFe-LDH/NiMoO4/NF displays exceptional electrocatalytic performance for OER and UOR, with a potential of only 1.57 V vs. RHE at 100 mA cm- 2 and the Tafel slope of 54.4 mV dec- 1 for OER, high UOR activity with a potential of 1.45 mV@100 mA cm- 2 and the Tafel slope of 20.4 mV dec- 1 in 1.0 M KOH with 0.33 M urea solution. In a hybrid acid-base electrolysis system for urea oxidation-assisted H2 production using NiFe-LDH/ NiMoO4/NF as the anode electrode and Pt/C/NF as the cathode electrode, the process requires a cell voltage of only 0.55 V vs. RHE at 10 mA cm- 2. Moreover, this hybrid acid/base system demonstrates stable operation for 110 h with minimal attenuation at a current density of 100 mA cm- 2. These results indicate a facile strategy for the design of electrodes with crystalline-amorphous coupling structures for energy conversion.
Keyword ：
Hydrogen evolution reaction Hydrogen evolution reaction NiFe-LDH/NiMoO4/NF NiFe-LDH/NiMoO4/NF Oxygen evolution reaction Oxygen evolution reaction Urea oxidation reaction Urea oxidation reaction
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| GB/T 7714 | Qiao, Sen , Rao, Chaoming , Chen, Haiyan et al. Enhanced hydrogen production via catalytic water and urea oxidation in a hybrid acid-base electrolytic cell with NiFe-LDH/NiMoO4 /NF [J]. | JOURNAL OF ALLOYS AND COMPOUNDS , 2024 , 1004 . |
| MLA | Qiao, Sen et al. "Enhanced hydrogen production via catalytic water and urea oxidation in a hybrid acid-base electrolytic cell with NiFe-LDH/NiMoO4 /NF" . | JOURNAL OF ALLOYS AND COMPOUNDS 1004 (2024) . |
| APA | Qiao, Sen , Rao, Chaoming , Chen, Haiyan , Xiong, Min , Xu, Qiuhua , Ci, Suqin . Enhanced hydrogen production via catalytic water and urea oxidation in a hybrid acid-base electrolytic cell with NiFe-LDH/NiMoO4 /NF . | JOURNAL OF ALLOYS AND COMPOUNDS , 2024 , 1004 . |
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