Article
Chemistry, Physical
Hang Xiao, Mengyang Xia, Ben Chong, He Li, Bo Lin, Guidong Yang
Summary: This study develops a nonmetal boron mediated FeS2 material for electrocatalytic nitrogen fixation and enhances the ammonia synthesis performance by tuning the d-band center of the catalyst.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Engineering, Chemical
Fangling Hu, Liangliang Fu, Qingjin Zhang, Guangwen Xu, Dingrong Bai
Summary: This study proposes a method for synthesizing high-quality forsterite using abundant boron mud waste through high-temperature thermochemical reactions. The reaction can be completed rapidly at low temperatures due to the high reactivity of fine raw powder materials. The synthesized forsterite products exhibit high densification, well-developed grains, and an activation energy of 165.5 kJ/mol in the temperature range of 1100-1500°C. This study provides a low-cost method for producing forsterite and an efficient solution for treating solid waste.
Article
Chemistry, Physical
Aohui Chen, Chang Zhu, Jianing Mao, Shoujie Li, Gangfeng Wu, Yiheng Wei, Xiaohu Liu, Xiao Dong, Yanfang Song, Guihua Li, Yuhan Sun, Wei Wei, Wei Chen
Summary: The electroreduction of CO2 to valuable chemicals using renewable energy is a promising strategy for achieving carbon neutrality, but it remains challenging under high industry current densities. In this work, a lattice-dislocated hollow-fiber Bi electrode was developed to address this issue. The electrode showed a nearly perfect formate Faradaic efficiency at a current density of 1 A cm(-2), effectively suppressing CO and hydrogen generation. The results suggest that the lattice-dislocated Bi hollow electrode, which induces penetration and strain effects, plays a crucial role in promoting CO2 conversion.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Chang Wang, Shihao Zhou, Qingqiang Cui, Mengya Zhang, Linqi Zheng, Shuang Li, Xiangdong Liu, Ming Chen
Summary: This study develops a high-temperature-resistant and efficient photo-thermal catalyst for the degradation of organic dyes. The catalyst exhibits excellent degradation rate under solar-activated heating conditions, and it also demonstrates remarkable thermal recyclability. By immobilizing the nano-catalyst in specific materials, it can be conveniently applied for practical wastewater purification.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yan Sun, Lei Zhang
Summary: A Janus photocathode with asymmetric wettability was successfully fabricated, which showed higher H2O2 production and stable photoelectrochemical performance compared to hydrophilic and hydrophobic electrodes.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
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)
Article
Chemistry, Physical
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)
Article
Engineering, Chemical
Lixia Hou, Chunxiao Qu, Min Su, Zhihan Liang, Qi Hao
Summary: This study investigates the impact of polymer modified Fe3O4 nanoparticles on lysozyme (Lys) crystallization under different conditions, using functionalized Fe3O4 magnetic nanoparticles (Polymer C@Fe3O4) as nucleation agents. The findings show that the surface charge density of Polymer C@Fe3O4 is highest at a modification mass ratio of 8:3 for Fe3O4 to Polymer C. By adding 15% of the PolymerC@Fe3O4 prepared from Fe3O4 with an average particle size of 150 nm, magnetic core lysozyme (M-Lys) crystals with an average particle size of 11.08 mm, narrow size distribution, and regular morphology were obtained with a yield of 82.42% within 60 min.
Article
Engineering, Chemical
Bingchuan Cheng, Haibo Li, Guangming Pan, Runhuai Deng, Yu'an Gong, Shujun Xu, Kun Zhou, Zhuo Zheng
Summary: The study focuses on the plugging mechanism of swelling particle grouting material in high pressure and large-flow burst water within karst pipelines. A precise constitutive model and a coupling calculation method were established to describe the diffusion process and spatiotemporal heterogeneity of viscosity. A Computational Fluid Dynamics-Discrete Element Method (CFD-DEM) coupling model was developed to investigate the interaction between particle swelling and flow field changes.
Article
Engineering, Chemical
Yingfeng Sun, Shuaipeng Zhu, Fei Xie, Chujian Han, Yixin Zhao, Zetian Zhang
Summary: Coal seam CO2 sequestration is an important solution to global warming. This study investigates the differences in pore structure evolution between deep and shallow coal during gas adsorption using real-time synchrotron radiation small-angle X-ray scattering (SAXS) observation. It is found that coal compositions and stress history play significant roles in the average pore diameter and pore surface fractal dimension evolution differences. Different types of coal deformation, inner-swelling and outer swelling, exist during gas adsorption. The dominance of inner-swelling in deep coal is induced by higher ash contents and results in a decrease in average pore diameter.
Review
Engineering, Chemical
Ruiqi Xie, Zhihui Zhao, Xiong Tong, Xian Xie, Qiang Song, Peiqiang Fan
Summary: This review provides a systematic summary of the types and characteristics of clay-type lithium resources, as well as the research status of lithium extraction from these resources. The difficulties in the development and utilization of clay-type lithium ore are discussed, and future research orientations are proposed.
Article
Engineering, Chemical
Alexander A. Fedorets, Eduard E. Kolmakov, Leonid A. Dombrovsky
Summary: Droplet clusters levitating over heated water surface can be used as microreactors for microbiological experiments, and a new optical method is proposed to precisely measure the levitation height and velocity of droplets.
Article
Chemistry, Physical
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)
Article
Chemistry, Physical
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)
Review
Engineering, Chemical
Yaqi Yao, Jinming Xu, Yanqiang Huang, Tao Zhang
Summary: This review summarizes the synthesis methods and applications of carbon nanospheres (CNS) in various fields. The four main methods of CNS synthesis are described, followed by expounding their applications in energy storage, adsorption, biological medicine, and catalysis. Finally, insights on the development and design of CNS are presented.
Article
Chemistry, Physical
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)
Article
Chemistry, Physical
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)
Article
Chemistry, Physical
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)
Article
Chemistry, Physical
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)
Article
Chemistry, Physical
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)
