Chemistry, Physical

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Article Chemistry, Physical

Insight into the island-sea effect of Cu-N-C for enhanced CO2 eletroreduction selectively towards C2H4

Haizhong Zhang, Chao Zhu, Renlan Liu, Qile Fang, Shuang Song, Yi Shen

Summary: This study demonstrates the successful achievement of high selectivity and activity in the electrochemical reduction of CO2 to C2H4 through precise control of catalyst structure. The research reveals the generation of crucial intermediates on isolated single atoms and their transfer to atom clusters via an electron bridge, facilitating subsequent reactions. The "Island-sea" effect not only couples electron transfer processes, but also promotes synergistic functionalization reactions and bond formation.

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY (2024)

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Article Chemistry, Physical

Unveiling and utilizing the reconstructing dynamics on nanoporous Ag-Bi for CO2 electroreduction

Xiangji Zhou, Yongqi Liu, Lin Liu, Yao Yu, Jiangang Xu, Min Ruan, Song Li, Lihua Qian

Summary: This study regulates the reconstruction of amorphous Bi shell forming onto nanoporous AgBi during CO2ER, and confirms the optimal reconstruction potential to be -1.05 V. The surface reconfiguration and catalytic property conversion along with the reconstruction are identified through in-situ electrochemical and spectroscopic characterizations. The reconstructed catalyst achieves high Faradaic efficiency and durability thanks to the special nanoporous core-shell structure.

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY (2024)

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Article Chemistry, Physical

Synergistic d-p hybridized Co/W5N4 heterostructure catalyst for industrial alkaline water/seawater hydrogen evolution

Shipeng Geng, Liming Chen, Lianmei Kang, Ruchun Li, Haixin Chen, Luo Cheng, Dandan Cai, Yi Wang, Shuqin Song

Summary: In this study, a heterostructured Co/W5N4 catalyst with a porous structure was constructed and showed efficient hydrogen evolution reaction (HER) from alkaline water/seawater, as well as great stability.

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY (2024)

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Article Chemistry, Physical

Efficient CO2 reduction under visible light: Synergistic effects of Cu nanoparticles and Ni single atoms

Wei-guo Pan, Chu-fan Li, Zhen-rui Zhang, Tong Wu, Rui-tang Guo

Summary: In this work, nitrogen-doped carbon composites (CA/Ni1CuNP N-C) were used to efficiently convert CO2 into CO, CH4, and C2H6 under visible light. The synergistic interaction between Cu nanoparticles and Ni single-atom sites enhanced the catalytic performance by accelerating charge separation and improving adsorption properties. This study provides insights into using metal nanoparticles to optimize single-atom catalysts for enhanced activity.

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY (2024)

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Article Chemistry, Physical

Carbon modification facilitates piezocatalytic H2O2 production over BiOCl nanosheets: Correlation between piezoresponse and surface reaction

Yuanyi Zhou, Haojie Dong, Zhaofen Xu, Qingbing Zha, Mingshan Zhu, Yu Meng

Summary: Piezocatalysis, with modified carbon species over BiOCl nanosheets, achieves high efficiency in H2O2 production in pure water by improving surface reactions and bridging the gap between piezoelectricity and catalytic efficiency.

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY (2024)

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Article Chemistry, Physical

Synthesis of novel Mo-Ni@Al2O3 catalyst for converting fatty acid esters into diesel-range alkanes with enhanced hydrodeoxygenation selectivity

Xincheng Cao, Shiyu Wu, Jiaping Zhao, Feng Long, Shuya Jia, Xiaolei Zhang, Junming Xu, Jianchun Jiang

Summary: In this study, a novel Al2O3-supported Mo-Ni catalyst (Mo-Ni@Al2O3) was developed to enhance the hydrodeoxygenation (HDO) selectivity of fatty acid esters. The catalyst exhibited higher HDO selectivity towards diesel-range alkanes compared to conventional catalysts.

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY (2024)

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Article Chemistry, Physical

The 5d-5p-3d orbital hybridization induced by light incorporation of Cu into surface-uneven Pt3Sn intermetallic nanocubes customizes dual-intermediates adsorptions for CO-resilient methanol oxidation

Yao Nie, Zhaohong Li, Yi Wang, Xingqun Zheng, Linping Luo, Xuejiao Xia, Sitong Yang, Chunyan Du, Yihan Huang, Yi Wang

Summary: In this study, the incorporation of copper into surface-uneven Pt3Sn intermetallic nanocubes was used to manipulate the adsorption of CO*/OH* intermediates, resulting in improved electrocatalytic performance for methanol oxidation reaction.

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY (2024)

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Article Chemistry, Physical

Electron transfer-mediated enhancement of superoxide radical generation in fenton-like process: Key role of oxygen vacancy-regulated local electron density of cobalt sites

Ta Cong Khiem, Nguyen Nhat Huy, Eilhann Kwon, Jechan Lee, Wen Da Oh, Xiaoguang Duan, Stainslaw Waclawek, Haitao Wang, Grzegorz Lisak, Farshid Ghanbari, Kun-Yi Andrew Lin

Summary: Designing metal oxides with oxygen vacancies (OVs) is a potential strategy for improving the Fenton-like process. However, the nature of OV, the effect of OV enhancement on catalytic performance, the activation of H2O2 by OV, and the relationship between OV and ROS or non-radical pathways are not fully understood. In this study, yolk-shell Co3O4 nanospheres with varying OV were synthesized to investigate the relationship between OV, ROS, and electron transfer in the degradation of sulfadiazine (SDZ) via H2O2 activation. The results showed that the increased OV led to improved conductivity and enhanced adsorption and activation of H2O2, resulting in the generation of more hydroxyl radicals and promoting the degradation of SDZ through increased production of superoxide radicals.

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY (2024)

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Article Chemistry, Physical

Co@SiO2/C catalyst shielded by hierarchical shell for robust hydrogen production

Lei Sun, Mingjie Liu, Tao Zhang, Yongkang Huang, Houhong Song, Jie Yang, Jianmin Dou, Dacheng Li, Xiaofeng Gao, Qingde Zhang, Siyu Yao

Summary: The use of SiO2-shielded cobalt-based catalysts can enhance the activity and stability of NaBH4, leading to higher hydrogen productivity. The unique structural and electronic properties of these catalysts promote the reaction of NaBH4 and H2O, reducing the reaction energy barrier.

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY (2024)

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Article Chemistry, Physical

Enhancing CO diffusion for selective acetate production via CO reduction on copper catalyst

Junmei Chen, Lei Chen, Jingyi Chen, Di Wang, Yilin Zhao, Lan Wen, Shibo Xi, Lei Wang

Summary: In this study, we presented a facile strategy for modulating the local concentration of CO using polymer coating, which led to selective, active, and stable production of acetate on a Cu model-catalyst. The fluorinated polymer coating enhanced CO diffusion and increased the hydrophobicity of the catalyst layer, resulting in significantly improved acetate selectivity and partial current density on the Cu-catalyst.

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY (2024)

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Article Chemistry, Physical

Revealing the effect of metal-support interactions at the Ni/In2O3(111) interface on the selective CO2 hydrogenation

Yishui Ding, Jie Chen, Xu Lian, Zhangliu Tian, Xiangrui Geng, Yihe Wang, Yuan Liu, Wei Wang, Meng Wang, Yukun Xiao, Tengyu Jin, Mingyue Sun, Zhenni Yang, Kelvin H. L. Zhang, Jian-Qiang Zhong, Wei Chen

Summary: In this study, the mechanisms and metal-oxide interactions of In2O3-supported Ni catalysts in CO2 hydrogenation were investigated. It was found that Ni clusters exhibited cationic states at low coverages, and the chemical bonding and electron transfer at the Ni/In2O3 interface were crucial for the activation of H2 and CO2. Additionally, reaction intermediates were easily formed and desorbed under CO2 hydrogenation conditions. These findings are important for the rational design of efficient In2O3-based catalysts.

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY (2024)

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Article Chemistry, Physical

Key role of material pore size in development of porous TiOx electrodes for removal of organic compounds in flow-through reactor

Jing Ma, Clement Trellu, Nihal Oturan, Stephane Raffy, Mehmet A. Oturan

Summary: Different porous TiOx electrodes were synthesized to study the effect of their porous structure on the efficiency of electrocatalytic phenomena in removing organic pollutants from water. It was found that small pore electrodes had lower reaction rates in stirred-tank reactor, while larger pore electrodes with coarse roughness were beneficial. However, small pore electrodes allowed for optimal mass transport in flow-through configuration.

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY (2024)

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Article Chemistry, Physical

MgAl2O4 incorporated catalytic ceramic membrane for catalytic ozonation of organic pollutants

Haokun Bai, Lanlan Liang, Peike Cao, Haiguang Zhang, Shuo Chen, Hongtao Yu, Xie Quan

Summary: Heterogeneous catalytic ozonation with MgAl2O4 catalysts incorporated on the surface of ceramic membrane pores achieved efficient removal of organic pollutants in wastewater treatment under spatial confinement, due to enhanced utilization of hydroxyl radicals and promotion of pollutant degradation.

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY (2024)

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Article Chemistry, Physical

A heterostructure of interlayer-expanded 1T phase MoS2 and spherical MoO2 for efficient and stable hydrogen evolution

Xianbo Yu, Feng Yan, Yang Zhao, Bo Geng, Xinzhi Ma, Lili Wu, Xitian Zhang, Yujin Chen

Summary: This study reports a heterostructured material MoO2 @E-MoS2 containing expanded layer spacing and 1 T phase MoS2, which exhibits superior HER catalytic performance by modulating the electronic structure and improving the electrical conductivity and active site exposure of the catalyst.

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY (2024)

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Article Chemistry, Physical

A natural molecule-driven organometallic conformal overlayer for high efficiency photoelectrochemical water splitting

Yuankai Li, Min-Cheol Kim, Chengkai Xia, Won Tae Hong, Jaekyum Kim, Geunsu Bae, Yoon Seo Jang, Se Yun Jeong, Eunji Sim, Chang Hyuck Choi, Tae-Hoon Kim, Ki Hyun Kim, Jung Kyu Kim

Summary: This study demonstrates a successful enhancement of photoelectrochemical (PEC) water splitting activity through the assembly of an organometallic overlayers with environmentally friendly materials, resulting in higher photocurrent density and long-term durability.

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY (2024)

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Article Chemistry, Physical

Low-temperature selective catalytic reduction of NOx with NH3: Exploring the mechanism of enhancing H2O tolerance through methylation functionalization and structural regulation in IPAx-Mn-BTC

Kunli Song, Jiyuan Hu, Peng Lu, Dandan Ma, Xinya Zhou, Jun Li, Ting Jiang, Lu Li, Shangyuan Wu, Jian-Wen Shi

Summary: In this study, a low-temperature de-NOx catalyst with strong H2O tolerance was developed through methyl functionalization. The catalyst showed only a slight decrease in NOx conversion when 6% H2O was introduced at low temperature. The elimination of small pore size and diminished H2O adsorption energy due to methyl functionalization were found to be the key factors behind the improved H2O tolerance.

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY (2024)

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Article Chemistry, Physical

Facile synthesis of defect induced CeO2/MIL-53(Fe) nanocatalyst: Strategically switching the charge transfer dynamics for remarkable enhancement of photocatalytic Bisphenol A degradation and H2 evolution

Ugrabadi Sahoo, Samarjit Pattnayak, Shubhalaxmi Choudhury, Pragnyashree Aparajita, Dillip Kumar Pradhan, Garudadhwaj Hota

Summary: This study reports the fabrication of a heterojunction between defect induced CeO2 and iron based metal organic framework (MIL-53), and investigates its application in Bisphenol A breakdown and photocatalytic hydrogen generation from water splitting. The improved photocatalytic performance of the heterojunction can be attributed to the switching of charge transfer mechanism.

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY (2024)

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Article Chemistry, Physical

Oxygen vacancies-modified S-scheme heterojunction of Bi-doped La2Ti2O7 and La-doped Bi4Ti3O12 to improve the NO gas removal avoiding NO2 product

Li Lv, Lin Lei, Qi-Wen Chen, Cheng-Li Yin, Huiqing Fan, Jian-Ping Zhou

Summary: Monoclinic phase La2Ti2O7 and orthorhombic phase Bi4Ti3O12 are widely used in photocatalysis due to their layered crystal structure. The electronic structures of these phases play a crucial role in their photocatalytic activity. Heat treatment in a nitrogen atmosphere introduces more oxygen vacancies into the S-scheme heterojunction, leading to enhanced NO removal efficiency.

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY (2024)

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Article Chemistry, Physical

Cu nanocrystals coupled with poly (heptazine imide) for synergistically enhanced photocatalytic CH3SH elimination: Facet engineering strengthened electron pump effect

Tao Zhong, Su Tang, Wenbin Huang, Wei Liu, Huinan Zhao, Lingling Hu, Shuanghong Tian, Chun He

Summary: In this study, a highly efficient photocatalyst for the elimination of CH3SH was developed by engineering different crystal facets and coupling them with PHI. Cu (111)/PHI exhibited the highest elimination efficiency and showed good stability and reusability. The enhanced surface electron pump effect and effective adsorption mechanisms were revealed through comprehensive characterizations and DFT calculations.

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY (2024)

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Article Chemistry, Physical

Enhancing catalytic activity of zeolitic octahedral metal oxides through zinc incorporation for ethane oxidative dehydrogenation

Bolun Yu, Denan Li, Qianqian Zhu, Shufan Yao, Lifeng Zhang, Yanshuo Li, Zhenxin Zhang

Summary: This study successfully improved the catalytic activity of a zeolitic octahedral metal oxide by incorporating a single zinc species into its micropore. The zinc incorporation achieved a high ethane conversion rate and ethylene selectivity. Mechanism study showed that the isolated zinc site played a crucial role in activating oxygen and ethane, as well as stabilizing intermediates and transition states.

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY (2024)

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