Article
Materials Science, Multidisciplinary
Paulina Summa, Katarzyna Swirk Da Costa, Jithin Gopakumar, Bogdan Samojeden, Monika Motak, Magnus Running, Wouter Van Beek, Patrick Da Costa
Summary: The addition of cobalt to Ni-Mg-Al mixed oxides enhances the catalytic performance for the hydrogenation of CO2 to methane by improving Ni reducibility, surface basicity, electronic and textural properties.
APPLIED MATERIALS TODAY
(2023)
Article
Energy & Fuels
Jiahui Yu, Bingge Feng, Shuai Liu, Xueliang Mu, Edward Lester, Tao Wu
Summary: In this study, a novel Ni/Al2O3-P catalyst was prepared and showed higher efficiency and better stability in CO2 methanation reaction.
Article
Multidisciplinary Sciences
Jun Lin, Liang Dong, Yi-Ming Liu, Yi Hu, Chen Jiang, Ke Liu, Liu Liu, Yong-Hong Song, Mei Sun, Xing-Cheng Xiang, Kun Qu, Yang Lu, Long-Ping Wen, Shu-Hong Yu
Summary: Nickel-cobalt alloy magnetic nanocrystals (NiCo NCs) inhibit the activation of NLRP3, NLRC4, and AIM2 inflammasomes by downregulating the transcription of lncRNA Neat1. They also alleviate symptoms in acute peritonitis and colitis mouse models by inhibiting inflammasome activation.
NATIONAL SCIENCE REVIEW
(2023)
Article
Energy & Fuels
Huilin Yi, Qiangqiang Xue, Shuliang Lu, Jiajia Wu, Yujun Wang, Guangsheng Luo
Summary: This study comprehensively investigates the role of pore structure on metal dispersion and catalytic performance. The results demonstrate that a narrow pore size distribution, high specific surface area, and large pore volume of the support promote uniform metal dispersion and stronger metal-support interaction. The Ni/Al2O3 microsphere catalysts exhibit smaller Ni particle size and higher CO2 conversion compared to other samples.
Article
Energy & Fuels
Linghui Lyu, Makpal Shengene, Qingxiang Ma, Jian Sun, Xinhua Gao, Hui Fan, Jianli Zhang, Tian-Sheng Zhao
Summary: In this study, a bimodal pore structure Ni-Co catalyst was prepared and applied for dry reforming of methane (DRM). The NC0.5-M100-MA catalyst exhibited the best catalytic performance at 700 degrees Celsius, with improved stability due to the synergistic effect of Ni-Co alloy and macro-meso bimodal pore structure.
Article
Energy & Fuels
Shuxin Zhou, Huailin Fan, Fei He, Zhaobing Fu, Guoming Gao, Shu Zhang, Xun Hu
Summary: Metal selenides are important electrode materials in electrochemical energy storage and show comparable or even superior performance compared to metal oxides. The role of selenium in metal selenide electrodes in pseudocapacitance is still unclear. This study synthesized and evaluated NiO/NiCo2O4/CoO and NiCoSe2 spheres in an electrochemical system, and found that the participation of selenium in pseudocapacitance reactions is through hydroxides rather than selenides. Selenium also promotes the transformation of the active phase and contributes to the excellent electrochemical performance. The asymmetric device with NiCoSe2 as the positive electrode exhibited superior energy density and stability.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Multidisciplinary
Amar Bendieb Aberkane, Maria Pilar Yeste, Faycal Djazi, Miguel Angel Cauqui
Summary: In this study, a series of NiO-CeO2 mixed-oxide catalysts were prepared using a modified co-precipitation method. The influence of the preparation method and pH value on the properties of the catalysts were investigated. The catalyst prepared at a higher pH value exhibited better performance in the CO methanation reaction.
Article
Chemistry, Physical
Zouhair Boukha, Alejandro Bermejo-Lopez, Benat Pereda-Ayo, Jose A. Gonzalez-Marcos, Juan R. Gonzalez-Velasco
Summary: The performance of nickel catalyst supported on lanthana-modified hydroxyapatite (HAP) in CO2 methanation was investigated, with La addition improving the dispersion and reducibility of Ni particles, increasing the amounts of basic sites and their thermal stability, leading to enhanced catalytic activity.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Thuy Ha Nguyen, Han Bom Kim, Eun Duck Park
Summary: CO2 methanation using ceria-supported cobalt catalysts with low cobalt contents was studied. The catalytic performance and physicochemical properties were influenced by the preparation method and treatment temperature. Among the catalysts tested, the ceria-supported cobalt catalyst prepared by wet impregnation method and calcined in air at 500 degrees C, then reduced in H-2 at 500 degrees C, showed the best catalytic performance.
Article
Energy & Fuels
Maria Mikhail, Patrick Da Costa, Jacques Amouroux, Simeon Cavadias, Michael Tatoulian, Stephanie Ognier, Maria Elena Galvez
Summary: In this study, the effects of alkali metal (Na and K) on the physicochemical and catalytic behavior of Ni/CeZrOx catalysts during non-thermal plasma-assisted CO2 methanation were investigated. The presence of Na and K impurities resulted in decreased CO2 conversions, lower selectivity to CH4 and increased power consumption. The interaction with both the support and the active phase led to a more difficult reduction of the Ce-species, affecting the overall catalytic performance. Higher dielectric constant contributed to increased energy dissipation and favored the strong ionization of the gas contained in the reactor gap, resulting in CO formation.
Article
Thermodynamics
Natalia Czuma, Bogdan Samojeden, Katarzyna Zarebska, Monika Motak, Patrick Da Costa
Summary: This study explores a novel approach to prepare catalysts for CO2 methanation by using waste fly ashes as support. The use of mechanical energy enables efficient conversion, offering promising results and economic benefits. This approach aligns with the concept of circular economy and promotes waste reuse.
Article
Chemistry, Multidisciplinary
Jinghui Tu, Haihong Wu, Qingli Qian, Shitao Han, Mengen Chu, Shuaiqiang Jia, Ruting Feng, Jianxin Zhai, Mingyuan He, Buxing Han
Summary: CO2 methanation is a key reaction for CO2 valorization, usually requiring high temperatures. However, the challenge lies in developing affordable metal catalysts that can accelerate this reaction at low temperatures effectively. The study introduced an amorphous Co-Zr0.1-B-O catalyst that exhibited promising activity at temperatures as low as 140 degrees C, with the Zr promoter showing exceptional performance in enhancing the catalyst's efficiency.
Article
Nanoscience & Nanotechnology
Zijun Shi, Xuan Xu, China Peng Jing, Baocang Liu, Jun Zhang
Summary: An inventive technique was used to produce a composite electrode consisting of a well-aligned nickel-cobalt alloy nanoparticles-encapsulated N-doped carbon nanotubes with porous structure and good conductivity as a substrate, onto which nanosheets of nickel-cobalt layered double hydroxide were grown. This composite electrode demonstrated high capacitance, long-term stability, and high Coulombic efficiency, making it a potential approach for high-performance supercapacitors.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Qinzhen Fan, Yaqi Chen, Qing Liu
Summary: The study aims to reveal the efficiency of Ni(OH)2 and H4SiO4, and it was found that Ni(OH)2 is more efficient. NaOH and NH4F were used to enhance the formation of Ni(OH)2 and H4SiO4, obtaining Ni/D-S and Ni/D-A. Ni/D-S exhibited higher activity in CO2 methanation, while Ni/D-A had lower Ni content, but the addition of more NH4F improved the formation of Ni-phyllosilicate and enhanced catalytic performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Salina Jantarang, Simone Ligori, Jonathan Horlyck, Emma C. Lovell, Tze Hao Tan, Bingqiao Xie, Rose Amal, Jason Scott
Summary: The study introduced a strategy based on He-plasma treatment to introduce and stabilize defects on a Ni/TiO2 catalyst for enhanced catalytic activity. The sequence of pretreatment steps, including He-plasma treatment and reduction/passivation, was found to impact defect generation and stabilization within the support, affecting the photothermal CO2 hydrogenation process.
Article
Engineering, Chemical
Qianqian Wang, Min Cao, Liming Fan, Paul N. Duchesne, Pengfei Wang, Sha Li, Ruifeng Li, Xiaoliang Yan
Summary: Achieving high catalytic performance in heterogeneous catalysis requires engineering the sophisticated structure of Al2O3 and controlling the structure of counterpart metal active sites. In this study, a confinement strategy was employed to stabilize homogeneous Ni by penta-coordinated Al3+ anchoring sites in Al2O3. The resulting Ni/Al2O3 catalyst exhibited superior catalytic performance in CO methanation, attributed to the presence of defective sites on the Ni-0 surface and the contribution of oxygen vacancies on Al2O3 and hydrogen spillover.
Article
Chemistry, Physical
Hao Sun, Chenzhe Xu, Xiaoting Yang, Lei Tao, Zheng Wang, Haitao Zhang, Xiang Ji, Juanjuan Ma, Lin Liu, Zhiwei Tong, Zhong Chen
Summary: A novel composite Pd@MgAl-LDH was prepared by using MgAl layered double hydroxide (LDH) as the host material and assembling the precursor (PdCl42-) with exfoliated LDH nanosheets followed by in-situ reduction. The heterogeneous catalyst exhibited evenly distributed Pd NPs with an average particle size of about 3.27 nm supported on LDH nanosheets. The Pd@MgAl-LDH catalyst showed excellent catalytic efficiency for the Heck reaction and could be reused 5 times without significant loss of catalytic activity.
APPLIED CLAY SCIENCE
(2023)
Article
Engineering, Environmental
Xuanfei Xu, Tianxue Zhu, Weiwei Zheng, Caiyun Xian, Jianying Huang, Zhong Chen, Weilong Cai, Weiying Zhang, Yuekun Lai
Summary: In this study, a scraping technique was used to coat antifogging films on a substrate by utilizing a solution containing nanoparticles. The resulting hydrophilic coating showed excellent antifogging and self-healing properties, and it could withstand prolonged exposure to heat, ultraviolet radiation, sand impact, and solvent soaking. The simple construction approach could also be applied to various flexible and rigid substrates.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Shuming Liu, Shuqi Liu, Qian Wang, Zhou Zuo, Lan Wei, Zhong Chen, Xidong Liang
Summary: This article introduces a multifunctional nano-coating based on SiO2/PDMS/EP for improving the surface performance of insulators. The coating exhibits excellent water-repellency, self-cleaning performance, and anti-icing ability, while also allowing for fast surface charge dissipation and increased wet flashover voltage.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Xuerui Zang, Xuewen Cao, Weiwei Zheng, Tianxue Zhu, Yonggang Lei, Jianying Huang, Zhong Chen, Lin Teng, Jiang Bian, Yuekun Lai
Summary: Inspired by human meniscus, a superhydrophobic inner pipeline coating has been developed to mitigate the erosion and corrosion damages to gas transportation pipeline. The erosion resistance of the coating is significantly improved by optimizing the filler type and buffer layer thickness. The experiment results show that the fiber filler can greatly enhance the erosion resistance of the material.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Yucheng Zhu, Xiaofei Cao, Yuan Tan, Yao Wang, Jun Hu, Baotong Li, Zhong Chen
Summary: In this study, a two-dimensional material (space group R3 over bar m) with a negative Poisson's ratio (NPR) and a maximum NPR of -0.0846 in-plane was discovered using first-principles calculations. The NPR is mainly attributed to its unique zigzag structure and the strong interaction between Mo's 4d orbital and S's 3p orbital. Molecular dynamics simulations indicate the thermodynamic stability of this material. This research reveals the potential of layered MoS2 as a promising 2D NPR material for nanodevice applications.
Article
Chemistry, Physical
Yuexing Chen, Ming Ma, Jun Hu, Zhong Chen, Peng Jiang, Lilac Amirav, Shihe Yang, Zheng Xing
Summary: A coherent CdS(010)|CoS(010) interface was achieved by growing CoS nanoflakes onto CdS nanowires, resulting in efficient photoexcited charge carrier separation and photochemical solar-to-hydrogen conversion. This discovery provides a feasible design strategy for nanojunctions with atomic level coherency, offering great application prospects in catalysis, nanoelectronics, and more.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Environmental
Xinghua Wu, Minghao Xiao, Junting Zhang, Guohuang Tan, Yutong Pan, Yuekun Lai, Zhong Chen
Summary: In this study, a stable superhydrophobic surface with pressure resistance, chemical stability, biocompatibility, and biofouling resistance was demonstrated. The surface maintained superhydrophobicity under a water pressure of 13.72 kPa for 27 days and could withstand water flush and biological attacks for over 35 days. The mechanical stability of the surface was superior to state-of-the-art coatings. The stable long-lasting underwater superhydrophobic surface is of great importance to marine applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Green & Sustainable Science & Technology
Siwei Zhuang, Ning Duan, Linhua Jiang, Feilong Zhang, Jun Hu, Zhong Chen, Fuyuan Xu
Summary: Selective regulation of anodic reaction was achieved by phase-controlled MnO2 (MnO2-PC) on lead-based anodes, effectively addressing issues such as lead-dissolution, anodic slime-generation and high energy-consumption. MnO2-PC with specific crystal planes exposure and rich oxygen vacancy defects enabled higher oxygen evolution reaction selectivity, while synergistically suppressing lead corrosion and manganese oxidation. This study provides an efficient, low-cost, high economic benefits and environmental-friendly strategy for designing target functional materials towards reaction selectivity regulation via phase-control and microstructure reconstruction.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Materials Science, Multidisciplinary
Boon Chong Ong, Zhong Chen, Teik-Thye Lim, ZhiLi Dong
Summary: In this study, an effective hole scavenger layer of polyoxometalates (POMs) with excellent redox properties and high durability is coated on titanium dioxide (TiO2) nanorods to enhance the photoelectrochemical (PEC) water oxidation activity. The Co-POMs layers on TiO2 can effectively retard the recombination of photoinduced electron-hole pairs by extracting and transporting the generated holes, resulting in improved overall PEC performance under neutral conditions. This work provides a facile and promising method for promoting PEC water oxidation by depositing Co-POMs layers on TiO2 nanorods.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
M. Muralles, J. T. Oh, Z. Chen
Summary: Interatomic potentials for Fe-Co and Fe-V binary systems are developed to describe the mechanical behaviors of FeCo and FeCo-2V alloys. The results show that disordering inside grains greatly affects the ductility of FeCo, with antiphase domains (APD) mobility inside the grains delaying the ultimate tensile strength (UTS) and fracture point. Adding 2 at.% V to the FeCo alloy decreases the UTS and ductility at room temperature, but introducing V exclusively to the antiphase boundaries (APBs) increases the alloy's ductility.
Article
Chemistry, Physical
Yubin Li, Qianqian Wang, Min Cao, Sha Li, Zhiwen Song, Li Qiu, Feng Yu, Ruifeng Li, Xiaoliang Yan
Summary: Bimetallic Ni-Fe alloy catalysts with strong interaction between Ni and Fe show enhanced performance for dry reforming of methane (DRM), but the segregation of iron species remains a challenge. In this study, stable Ni1Fe1/Al2O3 and Ni3Fe1/Al2O3 catalysts were developed, and it was found that Ni1Fe1/Al2O3 exhibited better stability than Ni3Fe1/Al2O3 at high temperature. The structural evolution of Ni-Fe alloys in DRM led to the generation of Ni3Fe1/Al2O3 and Ni/Al2O3, and the equimolar alloy provided sufficient FeOx for dealloying process. Ni1Fe1/Al2O3 showed lower coke deposition and graphitization compared to Ni3Fe1/Al2O3, which favored the realloying of segregated FeOx. Furthermore, the two catalysts had different pathways for coke deposition, with CO and CH4 dissociation occurring concurrently on Ni3Fe1/Al2O3, while only CH4 dissociation appeared on Ni1Fe1/Al2O3.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Mei Ren, Jun Li, Manhong Huang, Donghui Chen, Xiaoliang Li, Xiaoliang Yan, Qi An, Songmei Sun
Summary: Artificial photosynthesis offers a promising pathway for the sustainable chemical industry by converting methane and nitrogen into valuable chemicals such as methanol and ammonia under ambient conditions. A recent study demonstrates that Fe-ZSM-5 catalyst with highly dispersed extra-framework Fe-oxo species enables efficient and selective photocatalytic conversion of methane and nitrogen, achieving high productivity and selectivity.
INORGANIC CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Qi Wang, Yuheng Deng, Malvern Yap, Yan Yang, Jielin Ma, Wen Kwang Chern, Jin Li, Zhong Chen
Summary: This paper presents a simulation scheme based on the PFCZM for electrical tree modelling and confirms the validity of the model through experiments. The results show that the epoxy resin enhanced with silica and graphene has significant improvements in dielectric breakdown time and thermal conductivity.
MATERIALS & DESIGN
(2023)
Article
Chemistry, Multidisciplinary
Xiaoliang Yan, Min Cao, Sha Li, Paul N. Duchesne, Wei Sun, Chenliang Mao, Rui Song, Zhe Lu, Xiao Chen, Weizhong Qian, Ruifeng Li, Lu Wang, Geoffrey A. Ozin
Summary: Researchers have synthesized a novel bimetallic heterogeneous catalyst and discovered its excellent catalytic performance and selectivity for carbon dioxide methanation through in situ analysis.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
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)
Article
Chemistry, Physical
Ruoqi Liu, Hao Fei, Jian Wang, Ting Guo, Fangyang Liu, Zhuangzhi Wu, Dezhi Wang
Summary: This work successfully synthesized a high-performing S-enriched MoS2 catalyst for electrocatalytic nitrogen reduction reaction (NRR), demonstrating high activity and selectivity. The synergistic effect of the 1T phase and bridging S22- species was shown to play a positive role in NRR performances, and DFT calculations revealed the mechanism behind the improved performance.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Pan Xia, Lele Zhao, Xi Chen, Zhihong Ye, Zhihong Zheng, Qiang He, Ignasi Sires
Summary: This study presents a modified gas-diffusion electrode (GDE) for highly efficient and stable H2O2 electrosynthesis by using trace polymethylhydrosiloxane (PMHS). DFT calculations provide an in-depth understanding of the roles of PMHS functional groups.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Kwangchol Ri, Songsik Pak, Dunyu Sun, Qiang Zhong, Shaogui Yang, Songil Sin, Leliang Wu, Yue Sun, Hui Cao, Chunxiao Han, Chenmin Xu, Yazi Liu, Huan He, Shiyin Li, Cheng Sun
Summary: Different B-doped rGO catalysts were synthesized and their 2e- oxygen reduction reaction (ORR) performance was investigated. It was found that the 2e- ORR selectivity of B-doped rGO was influenced by the B content and oxygen mass transfer conditions. The synthesized catalyst exhibited high 2e- ORR selectivity and was capable of degrading organic pollutants continuously.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
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)
Article
Chemistry, Physical
Choe Earn Choong, Minhee Kim, Jun Sup Lim, Young June Hong, Geon Joon Lee, Keun Hwa Chae, In Wook Nah, Yeomin Yoon, Eun Ha Choi, Min Jang
Summary: In this study, the synergistic effect between argon-plasma-system (AP) and catalysts in promoting the production of reactive species for water remediation was investigated. By altering the oxygen vacancies concentration of CeO2/Bi2O3 catalyst, the production of hydrated electrons was stimulated for PFOA removal. The results showed that the built-in electric field in the Bi/Ce0.43 interface enhanced electron migration and eaq- generation, leading to improved PFOA removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yushan Wu, Di Xu, Yanfei Xu, Xin Tian, Mingyue Ding
Summary: Efficient synthesis of primary amines from carbonyl compounds was achieved via reductive amination using Ru@NC-Al2O3 as a catalyst, exhibiting high activity and selectivity under mild conditions.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yilan Jiang, Peifang Wang, Tingyue Chen, Keyi Gao, Yiran Xiong, Yin Lu, Dionysios D. Dionysiou, Dawei Wang
Summary: By controlling the content of Co and Ni in Co1-xNixFe2O4, the production of O-1(2) from H2O2 can be regulated. NiFe2O4, with the lowest lattice distortion degree, can efficiently produce O-1(2) as the dominant reactive oxygen species. The system also exhibits significant resistance to water matrix interference.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Shuai Feng, Donglian Li, Hao Dong, Song Xie, Yaping Miao, Xuming Zhang, Biao Gao, Paul K. Chu, Xiang Peng
Summary: In this study, MoO2/Mo2N heterostructures were prepared by regulating the coordination of Mo atoms. The electrocatalyst exhibits high current density and excellent stability for hydrogen evolution reaction.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Jia-Cheng E. Yang, Min -Ping Zhu, Daqin Guan, Baoling Yuan, Darren Delai Sun, Chenghua Sun, Ming-Lai Fu
Summary: This study successfully modulated the electron configuration and spin state of millimetric metal catalysts by adjusting the support curvature radius. The electronic structure-oriented spin catalysis was found to affect the degradation of pollutants, providing new insights for the design and production of highly active, reusable, and stable catalysts.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
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)
Article
Chemistry, Physical
Feifei Yang, Tianyu Zhang, Jiankang Zhao, Wei Zhou, Nicole J. Libretto, Jeffrey T. Miller
Summary: A Ni3Sn intermetallic nano particle was found to have geometrically isolated Ni sites that could selectively cleave C-O bonds in biomass derivatives. This nano particle showed high activity and selectivity towards 2-methylfuran, unlike Ni nanoparticles that produced other unwanted products derived from the aromatic rings.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Lulu Qiao, Di Liu, Anquan Zhu, Jinxian Feng, Pengfei Zhou, Chunfa Liu, Kar Wei Ng, Hui Pan
Summary: This study reveals that surface evolution plays a crucial role in enhancing the electrocatalytic performance of transition metal oxides for electrochemical nitrate reduction reaction (e-NO3RR). Incorporating nickel into Co3O4 can promote surface reconstruction and improve the adsorption of intermediates and reduce energy barriers, leading to enhanced catalytic performance. The reconstructed cobalt-nickel hydroxides (CoyNi1_y(OH)2) on the catalyst's surface serve as the active phase.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Xinyu Song, Yang Shi, Zelin Wu, Bingkun Huang, Xinhao Wang, Heng Zhang, Peng Zhou, Wen Liu, Zhicheng Pan, Zhaokun Xiong, Bo Lai
Summary: This study explores the discriminative activities and mechanisms for activation of O-O bond in peroxy compounds via single-atom catalysts (SACs) with higher coordination numbers (M-N5). The atomic catalyst (Fe-SAC) with Fe-N5 as the active center was constructed, effectively activating peroxymonosulfate (PMS), peroxydisulfate (PDS), and hydrogen peroxide (H2O2). The study demonstrates the degradation efficiencies of acyclovir are related to the O-O bond length in different peroxy compounds, and reveals the discriminative mechanisms for activation of O-O bond in different Fenton-like systems.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Yangzhuo He, Hong Qin, Ziwei Wang, Han Wang, Yuan Zhu, Chengyun Zhou, Ying Zeng, Yicheng Li, Piao Xu, Guangming Zeng
Summary: A dual-metal-organic framework (MOF) assisted strategy was proposed to construct a magnetic Fe-Mn oxycarbide anchored on N-doped carbon for peroxymonosulfate (PMS) activation. The FeMn@NC-800 catalyst exhibited superior activity with almost 100% degradation of sulfamethazine (SMZ) in 30 minutes. The study provided insights for the rational design of high-performance heterogeneous catalysts and proposed a novel nonradical-based catalytic oxidation for environmental cleaning.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
