Article
Chemistry, Physical
Yong Li, Kyung-Ah Min, Byungchan Han, Lawrence Yoon Suk Lee
Summary: This study demonstrates highly enhanced hydrogen evolution reaction (HER) activity of Ni nanoparticles on TiO2 nanopyramid arrays, with the modification of nitrogen-doped carbon quantum dot layer forming an active interface of Ni-N-C bonds. This work provides insight into the rational design of non-noble metal electrocatalysts for promoting hydrogen production efficiently.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Review
Nanoscience & Nanotechnology
Changshui Wang, Qian Zhang, Bing Yan, Bo You, Jiaojiao Zheng, Li Feng, Chunmei Zhang, Shaohua Jiang, Wei Chen, Shuijian He
Summary: The electrocatalytic water splitting technology is beneficial for relieving environmental pollution and energy crisis by generating high-purity hydrogen without emitting carbon dioxide and achieving carbon neutrality. Facet engineering, as a promising strategy, can effectively control the ratio of crystal planes on the surface and enhance the electrocatalytic activity. This review provides a brief introduction to the basic concepts, reaction mechanisms, and evaluating parameters for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). It also comprehensively summarizes the formation mechanisms of crystal facets and strategies to tune crystal planes.
NANO-MICRO LETTERS
(2023)
Article
Chemistry, Physical
Qingxi Zhai, Hurong Ji, Yilun Ren, Hao Wu, Biao Wang, Fengqi Li, Yujie Ma, Xiangkang Meng
Summary: This paper presents a simple and effective strategy for improving the electrocatalytic activity of SnS2 nanosheets by manganese-metal-heteroatom doping, demonstrating a meaningful route for synthesizing cost-efficient HER electrocatalysts in alkaline conditions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Haibin Ma, Zhiwen Chen, Zhili Wang, Chandra Veer Singh, Qing Jiang
Summary: This study successfully developed a low-cost, high-efficiency catalyst Co/CoMoN/NF for both HER and OER reactions in alkaline electrolyte. The Co/CoMoN/NF heterostructures exhibited excellent performance in both HER and OER, and demonstrated superior long-term stability.
Article
Chemistry, Physical
Lei Huang, Xiongchao Lin, Jun Zhang, Zhe Sheng, Qian Wang, Fan Zhang, Sijian Qu, Yonggang Wang
Summary: Crystal facet engineering is a powerful method to enhance the catalytic properties of electrocatalysts. In this research, polyvinylpyrrolidone (PVP) was used as a surfactant to synthesize sub-microspheres NiCo2S4 with a highly exposed (400) crystal facet. The resulting NiCo2S4 sub-microspheres showed excellent catalytic activity and stability in alkaline electrolyte, attributed to the unique sub-microspheres structure that provided abundant active sites and enhanced mass/electron transfer efficiency.
APPLIED CATALYSIS A-GENERAL
(2022)
Article
Chemistry, Physical
Mingzhu You, Shasha Yi, Guanxing Zhang, Weimin Long, Deliang Chen
Summary: In this study, a stable catalyst based on Co2P/NiMoO4 heterojunction arrays supported on nickel foam was reported for water splitting and urea oxidation. The catalyst exhibited lower overpotential and higher catalytic performance at a large current density compared to a commercial catalyst RuO2/NF. The addition of Co2P was found to significantly affect the chemical environment and electron structure of NiMoO4, increasing the number of active sites and promoting charge transfer across the Co2P/NiMoO4 interface.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Review
Chemistry, Physical
Rajneesh Kumar Mishra, Gyu Jin Choi, Hyeon Jong Choi, Jay Singh, Seung Hee Lee, Jin Seog Gwag
Summary: Layered SnS2 nanostructure has shown potential as an electrocatalyst for boosting hydrogen energy production, and its performance can be further enhanced through morphological, doping, and nanocomposite/heterostructural engineering.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Hongfang Du, Zhuzhu Du, Tingfeng Wang, Song He, Kai Yang, Ke Wang, Linghai Xie, Wei Ai, Wei Huang
Summary: A new strategy for designing Pt-alternative electrocatalysts with outstanding electrochemical performances for high-efficiency water splitting and other applications was proposed by employing an in-situ interface engineering strategy to construct high-performance and cost effective electrocatalysts comprising WC/tungsten phosphide (WP) heterostructures anchored on N,P-codoped carbon (WC/WP@NPC) via a one-step pyrolysis. The synergistic effect of crystal structure compatibility, electron-rich property, fast electron transport, and structural stability led to outstanding HER performances of the catalyst in acidic and alkaline media.
SCIENCE CHINA-MATERIALS
(2022)
Article
Chemistry, Physical
Kotesh Kumar Mandari, Namgyu Son, Taeseong Kim, Misook Kang
Summary: This study presents the enhanced charge carrier separation and improved visible-light absorption capability of ternary nanostructures of Ag/AgVO3 with SnS2. The SnS2@Ag/AgVO3 heterostructures showed higher photocatalytic H-2 performance and quantum efficiency compared to SnS2 alone under solar light irradiation. The enhanced activity of SnS2@Ag/AgVO3 can be attributed to the maximized interfacial contact between SnS2 and Ag/AgVO3, as well as the high visible-light absorptivity and efficiency of SnS2 in the heterostructures.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Wei Hua, Huanhuan Sun, Huanyan Liu, Yueying Li, Jian-Gan Wang
Summary: By constructing NiMoN/Ni3N heterostructures through interface engineering, the alkaline HER electrocatalyst shows enhanced activity with lower overpotential and smaller Tafel slope, indicating a promising approach for developing superior catalysts for alkaline electrolysis.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Aiping Wu, Ying Gu, Ying Xie, Haijing Yan, Yanqing Jiao, Dongxu Wang, Chungui Tian
Summary: The MoS2/MoN heterostructures with tuned components exhibit efficient hydrogen evolution reaction (HER) performance due to their hierarchical architecture and the synergistic catalytic effects at the MoS2/MoN interfaces. X-ray photoelectron spectroscopy (XPS) and work function analysis show that these interfaces facilitate charge transport, while density functional theory (DFT) calculations suggest that the MoS2/MoN interface optimization can accelerate the electrochemical HER by improving hydrogen adsorption kinetic energy.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Gonglei Shao, Haiyan Xiang, Mengjie Huang, Yi Zong, Jun Luo, Yexin Feng, Xiong-Xiong Xue, Jie Xu, Song Liu, Zhen Zhou
Summary: In this study, sulfur atoms were accurately knocked out in the two-dimensional basal plane of SnS2, leading to the formation of SnS2 with different sulfur vacancy concentrations. The SnS2 material with a sulfur vacancy concentration of 30.5% exhibited excellent catalytic performance in the hydrogen evolution reaction. Computation results confirmed the significant impact of sulfur vacancies on surface charge modulation and electronic conductivity.
SCIENCE CHINA-MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Keying Su, Huaifang Zhang, Shiyun Qian, Jiatian Li, Jiawei Zhu, Yawen Tang, Xiaoyu Qiu
Summary: Simultaneously engineering the size and surface crystal facets of bimetallic core-shell nanocrystals can strengthen the interaction between core and shell, affecting the catalytic activity relationships.
Article
Engineering, Environmental
Xiaoqin Cheng, Qiang Bai, Huijun Li, Huanglin Dou, Zhenxin Zhao, Dongyu Bian, Xiaomin Wang
Summary: Transition-metal dichalcogenides are attractive host materials for Na+ insertion due to their high theoretical specific capacity, but their low conductivity and large volume fluctuations limit their practical applications. By introducing a more robust material and constructing a heterostructure, the internal stress and volume variations induced by Na+ insertion can be effectively cushioned, leading to improved structural stability and cycling performance.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
James Felton, Elena Blundo, Zakhar Kudrynskyi, Sanliang Ling, Jonathan Bradford, Giorgio Pettinari, Timothy Cooper, Matthew Wadge, Zakhar Kovalyuk, Antonio Polimeni, Peter Beton, David Grant, Gavin Walker, Amalia Patane
Summary: This study investigates the interaction between the vdW semiconductor SnS2 and hydrogen, demonstrating a controlled chemical conversion to semiconducting-SnS or beta-Sn. It successfully creates SnS2/SnS heterostructures with uniform layers, atomically flat interfaces, and well-aligned crystallographic axes. This scalable approach provides a promising route for engineering nanoscale semiconductor technologies based on the abundant elements Sn and S.
Article
Chemistry, Multidisciplinary
Yan Guo, Xiaobo Yang, Xingchen Liu, Xili Tong, Nianjun Yang
Summary: In this study, efficient hydrogen production from water splitting is achieved using Co-doped Rh nanoparticles as electrocatalysts. The results show that Co-doping reduces reaction barriers and enhances the adsorption capacity of reactants, resulting in excellent activity. In a two-electrode cell, the combination of fast oxidation reaction on the anode and efficient hydrogen evolution reaction on the cathode enables efficient water splitting for hydrogen production.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Nianjun Yang, Xin Jiang
Summary: Diamond electrodes have unique features, such as long-term chemical inertness, wide potential windows, and high microstructural stability. They can be prepared in microcrystalline or nanocrystalline form using chemical vapor deposition techniques. These electrodes have been widely applied in various electrochemical fields, including sensing, energy storage, and environmental degradation.
ACCOUNTS OF CHEMICAL RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Lingbo Liu, Ling Lei, Keni Zeng, Kangbing Wu, Nianjun Yang
Summary: Red phosphorus (RP) nanoparticles with tuned surface chemistry were synthesized using a phosphorus-amine approach. In situ spectroscopic techniques were used to monitor the cleavage of P-O-P bond and the formation of P-O-C bond during the transition. RP nanoparticles grown on single-walled carbon nanotube (SWCNT) showed efficient sensing of p-phenylenediamine (PPD) in hair dyes.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Analytical
Jing Qian, Juan Yang, Yuanyuan Zhang, Ting Zeng, Qijin Wan, Nianjun Yang
Summary: In this study, a NiMn-layered double hydroxide (LDH)@poly-L-lysine (PLL) composite was prepared and utilized for the monitoring of tryptophan in different samples. The synthesized composite exhibited high stability and a flower-like morphology, and its electron transfer rate was greatly improved due to the introduction of PLL. The coordination promotion between NiMn-LDH and PLL contributed to the increased sensitivity of electrochemical response. The fabricated sensor displayed a wide linear response range and high anti-interference ability for tryptophan detection.
ANALYTICA CHIMICA ACTA
(2023)
Article
Chemistry, Physical
Chengzhe Liu, Fengjiao Guo, Qi Yang, Hongyu Mi, Chenchen Ji, Nianjun Yang, Jieshan Qiu
Summary: Rechargeable aqueous zinc-ion hybrid capacitors (ZHCs) have attracted attention due to their safety, cost effectiveness, and environmental compatibility. However, issues regarding dendrite growth and side reactions at the electrode-electrolyte interface hinder the large-scale application of ZHCs. This study introduces a negatively charged carboxylated chitosan-intensified hydrogel electrolyte (CGPPHE) to stabilize the zinc anode, leading to improved efficiency and durability of ZHCs.
Editorial Material
Chemistry, Multidisciplinary
Anke Krueger, Nianjun Yang, Robert J. Hamers
ACCOUNTS OF CHEMICAL RESEARCH
(2023)
Article
Chemistry, Physical
Fei Wang, Du Li, Guanhua Zhang, Jingyuan Li, Chengzhi Zhang, Donghai Wei, Jianxiao Yang, Chong Ye, Jun Tan, Jinshui Liu
Summary: Sulfur doping is an effective method to design carbon materials with improved electrochemical performance by bridging active sites and inducing C-S electron coupling. However, the design of S-rich carbon materials by replacing pyrrolic nitrogen remains confusing. This study demonstrates the linear relationship between sulfur and nitrogen content and shows the tendency of sulfur to replace pyrrolic nitrogen. S-rich hollow carbon nanofibers (NHCFs-S) were synthesized by replacing part of nitrogen atoms with sulfur, leading to improved conductivity, Faraday reaction activity, and pseudocapacitive adsorption behavior. The NHCFs-S material exhibits a high capacity of 369 mAh/g at 1.0 A/g even after 100 cycles, with 80 % initial coulombic efficiency, and desirable rate capability of 261 mAh/g even at 5.0 A/g for potassium-ion batteries. This work provides a selection for high-performance anodes design and a reference for future research on high sulfur doped carbon materials.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Yiqiu Xiao, Siyong Li, Chong Peng, Nianjun Yang, Shetian Liu, Siyu Yu
Summary: This study designs and develops dual pseudocapacitive electrode/redox electrolyte systems for the construction of asymmetric supercabatteries. The different working potential windows of the two systems result in a high cell voltage of 2.0V. The synergistic effect of two redox species on the electrode and in the electrolyte leads to an enlarged capacitance and high energy and power densities for the supercabattery device.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Ling Lei, Jiaxi Yin, Kangbing Wu, Nianjun Yang
Summary: Ti3C2Tx nanoflakes with different lateral sizes and thicknesses were synthesized through acidic etching and intercalation treatment. The electrochemical response of the nanoflakes was found to be size and thickness dependent, mainly related to the oxygen content on their surface. A sensitive electrochemical sensor for the detection of p-nitrophenol was successfully constructed using nanoflakes with good dispersibility, high oxygen content, small size, and thin thickness.
Article
Chemistry, Analytical
Xiaoxian Hu, Jing Qian, Juan Yang, Xiaomin Hu, Yanjiao Zou, Nianjun Yang
Summary: Covalent organic frameworks (COFs) have attracted extensive attention as a newly emerging kind of porous material due to their fascinating structural features. In this study, a new type of core-shell metal-organic framework (MOF) @COF composites were synthesized through in situ growth of COF shell on a pre-synthesized core. The obtained MOF@COF composite exhibited a larger electrochemical active area and faster electron transfer kinetic compared to its single component. Moreover, it showed promising performance as a sensing material for the voltammetric detection of metol.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Applied
Chunjiang Jin, Congcong Yang, Hongyu Mi, Chenchen Ji, Fengjiao Guo, Chengzhe Liu, Ziqiang Liu, Nianjun Yang
Summary: This study introduces a polyanionic strategy by developing a hydrogel electrolyte with carboxyl groups, to improve the reversibility and performance of aqueous Zn-ion energy storage systems. The carboxyl groups in the hydrogel structure promote the transport of Zn2+ ions and expedite their desolvation, leading to enhanced deposition kinetics. These functional groups also suppress dendritic growth and side reactions, resulting in a smooth surface texture of the Zn anode. The electrolyte exhibits high Coulombic efficiency and exceptional cyclability, making it suitable for energy storage in flexible, intelligent electronics.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Jing Xu, Xin Jiang, Nianjun Yang
Summary: In the past few decades, nanometer-scale pores have been used for sensing biological molecules, especially in nanopore sequencing. Carbon nanopores, such as graphene and carbon nanotubes, have the advantage of rapidly sensing various biological molecules at single-molecule resolution and with reduced cost compared to other materials. This article provides an overview of the general issues in nanopore sequencing and focuses on the recent progress and achievements in using carbon nanomaterials for sequencing. Finally, future research directions using carbon nanomaterials for nanopore sequencing are discussed.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Huang Ling, Zhang Cheng-Zhi, Tan Jun, Li Sui-Min
Summary: Using waste LiFePO4 powders as raw material, the FePO4·2H2O precursor was effectively recycled through chemical precipitation. The formation mechanisms of the impurities were discussed. FePO4·2H2O could form by precipitation at a temperature of 298-363 K under a pH value of 0-5.0 according to the φ-pH diagram of the Fe-P-Li-H2O system. The synthesized LiFePO4 using this FePO4·2H2O as a precursor exhibited high capacity retention and could improve the economic efficiency of recycling spent LiFePO4 batteries.
CHINESE JOURNAL OF INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Analytical
Yao Zhao, Shu Zhang, Wang Yao, Yuxuan Zhu, Jing Qian, Juan Yang, Nianjun Yang
Summary: A new hierarchical nanostructured composite with high conductivity and catalytic activity is synthesized. The sensor exhibits significant catalytic effect and high sensitivity for monitoring the environmental endocrine disruptor bisphenol A (BPA).
Article
Chemistry, Physical
Weikang He, Jingjing Li, Yuanyuan Zhang, Juan Yang, Ting Zeng, Nianjun Yang
Summary: A high-performance capacitive electrode is designed and grown on a flexible carbon cloth substrate, consisting of sulfur-doped NiMn-layered double hydroxide nanosheets and sulfur-doped NiCo-LDH nanowires. The electrode exhibits high gravimetric capacity, retention rate, and cyclic stability, making it suitable for assembling high-power and energy-density supercapacitors.
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)
