Article
Chemistry, Multidisciplinary
Somia Djelloul Bencherif, Juan Jesus Gallardo, Ivan Carrillo-Berdugo, Abdellah Bahmani, Javier Navas
Summary: A layered double hydroxide material based on Zn and Cr was developed and transformed into the corresponding oxide by heat treatment, showing good photocatalytic activity in photodegradation tests. The catalyst demonstrated 100% degradation in optimized conditions and maintained good performance after five photodegradation cycles.
Review
Chemistry, Multidisciplinary
Ting Wang, Weiwen Wang, Wenjie Shao, Mingru Bai, Mi Zhou, Shuang Li, Tian Ma, Lang Ma, Chong Cheng, Xikui Liu
Summary: Water electrolysis is crucial for producing clean fuels, with oxygen evolution reaction (OER) electrocatalysts playing a key role. Among them, nanostructured layered double hydroxides (nLDHs) as a member of the big family of two-dimensional materials have shown significant progress and breakthroughs for OER, with enhanced catalytic performances through strategies such as compositional substitution and heteroatom doping.
Article
Engineering, Mechanical
Chengguang Tian, Hong Xu, Jinxiang Dong
Summary: This study introduces a thickener and oleogel system based on organic acid intercalated layered double hydroxides (LDHs) as a resource-widespread and economical alternative to traditional grease. LDHs materials exhibit similar viscoelastic and tribological properties to lithium greases. The use of layered materials as salt-like compounds offers potential for future development in grease thickeners.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
W. L. Joyce Kwok, Hongri Suo, Chunping Chen, D. W. Justin Leung, Jean-Charles Buffet, Dermot O'Hare
Summary: This study demonstrates a novel atom economic synthesis method for a new type of dense porous layered double hydroxides using struvite, a common waste product from wastewater treatment plants. The resulting SLDHs have significantly higher specific surface areas and larger pore volumes compared to conventional coprecipitated LDHs while maintaining a comparable particle density.
Article
Environmental Sciences
Zhongshuo Xu, Yueheng Zhong, Yuhui Wang, Xinshan Song, Wei Huang
Summary: Phosphorus pollution can cause both aquatic eutrophication and global phosphorus scarcity. Fe-based layered double hydroxides (LDHs) have been extensively studied for their high phosphorus adsorption and recovery. The composition of Fe-based LDHs is crucial in determining their adsorption performance. In this study, Zn/Fe LDH exhibited a much higher adsorption capacity than Mg/Fe LDH, and calcination significantly increased the adsorption capacity of Mg/Fe LDH. The phosphorus removal efficiency of Fe-based LDHs was high under acidic conditions but decreased with increasing pH, with Zn/Fe LDH showing weaker pH inhibition.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Engineering, Environmental
Changjuan Li, Zixian Li, Jikang Wang, Wenbo Xiong, Hong Yan, Yiling Bai, Dermot 'Hare, Yufei Zhao
Summary: The obtained Mg2Fe-mixed metal oxides showed extremely high mineralized capacity for Pb ions with removal figures of 2406 mg/g, superior to most reported materials. X-ray absorption fine structure studies revealed a transformation from MgFe-MMO to defective Mg2Fe-CO3-LDH with the Pb ions sequestering OH- from Mg2Fe-CO3-LDH to form a solid precipitate. The mineralized products could be recycled by electrolysis to obtain metallic lead, providing a new opportunity for pollution remediation and the recovery of metal lead.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Tianshan Xue, Yiping Wang, Li Yang, Zhe Li, Yanshan Gao, Qiang Wang
Summary: A novel method for preparing high-entropy oxides (HEO) using multivariate composition layered double hydroxides (LDHs) as precursor was successfully developed. Thermal treatment at temperatures above 600 degrees C resulted in the complete transformation of LDHs into single spinel phase HEOs. The HEO-600 catalyst exhibited impressive activity and stability in the catalytic oxidation of toluene, attributed to the abundance of surface oxygen vacancies and variable metal valence. This work presents a simple way to obtain HEO materials and provides technical support for the application of HEO catalysts in VOCs removal.
Article
Energy & Fuels
Ya Song, Jiabao Bai, Shenqin Jiang, Huawei Yang, Lixia Yang, Donglei Wei, Liangjiu Bai, Wenxiang Wang, Ying Liang, Hou Chen
Summary: In this study, CoFeMo mixed metal oxides (MMOs) were successfully synthesized as a robust and durable catalyst for aerobic oxidative desulfurization (AODS) of fuel. The catalytic performance can be regulated by altering the intercalation content of MoO42-, and the optimal catalyst efficiently converts various thiophenic compounds into sulfones at 100 degrees C, showing excellent reusability. This research provides a feasible method to synthesize highly efficient MMO catalysts for AODS of fuels.
Article
Chemistry, Applied
Shadpour Mallakpour, Zeinab Radfar, Mahmoud Feiz
Summary: The fabrication of environmentally friendly nanocomposite beads containing chitosan, tannic acid, layered double hydroxides, and mixed metal oxides was successful. These beads showed excellent adsorption capacity for three reactive dyes and could be regenerated and reused multiple times.
CARBOHYDRATE POLYMERS
(2023)
Review
Chemistry, Physical
Yixuan Guo, Fabrice Leroux, Weiliang Tian, Dianqing Li, Pinggui Tang, Yongjun Feng
Summary: LDHs are efficient and environmentally friendly PVC thermal stabilizers, potentially replacing traditional toxic stabilizers like lead salts. Their thermal stabilization mechanism, chemical composition of metal layers and interlayer guests, and dispersion state in PVC composites play crucial roles in enhancing PVC thermal stability.
APPLIED CLAY SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Yi Zhou, Jialai Hu, Lichun Yang, Qingsheng Gao
Summary: This review highlights the catalytic performance of earth-abundant CoFe layered-double-hydroxides (LDHs) in the oxygen evolution reaction (OER), focusing on their crystal structure, surface properties, and the role of iron species. Advanced approaches for optimizing the OER activity of CoFe LDHs are comprehensively overviewed, along with an analysis of their unique advantages. Finally, a perspective on the future development of CoFe LDHs electrocatalysts is provided.
CHINESE CHEMICAL LETTERS
(2022)
Article
Chemistry, Physical
Giuseppe Prestopino, Riccardo Pezzilli, Nicola Jose Calavita, Claudio Leonardi, Christian Falconi, Pier Gianni Medaglia
Summary: Layered Double Hydroxides (LDHs) possess exceptional properties and can be ideal building blocks for pyroelectric nanogenerators due to their high gradients of composition and energy-levels, size effects, and simplicity of fabrication and tuning.
Article
Energy & Fuels
Yunhao Zang, Yan Wang, Feng Gao, Jianfeng Gu, Jiangying Qu
Summary: The 2D NiInAlC intermetallic compounds constructed with Al substitution for In achieved high-efficiency conversion of CO2 to CO at low temperature, showing superior performance in terms of active surface area and CO selectivity compared to other catalysts.
Article
Green & Sustainable Science & Technology
Aamir Hanif, Mingzhe Sun, Tianqi Wang, Shanshan Shang, Daniel C. W. Tsang, Jin Shang
Summary: NO2 is a potent air pollutant that can be captured directly from the atmosphere by selective adsorption on porous materials. The study reports the rational development and demonstration of Mg-Al layered double hydroxides and their derived mixed metal oxides as high-capacity adsorbents. By boosting the densities of accessible basic sites, the highest NO2 adsorption capacity was achieved, offering promising, durable, and scalable adsorbents for ambient NO2 removal.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Nanoscience & Nanotechnology
Manohara Gudiyor Veerabhadrappa, M. Mercedes Maroto-Valer, Yuhang Chen, Susana Garcia
Summary: The study focuses on improving the CO2 capture capacities of LDHs-based MMOs through a modified amide hydrolysis method and aqueous exfoliation technique, leading to the development of pelletized structured sorbents. These structured sorbents exhibit good mechanical stability, high surface area, pore volume, and significantly improved CO2 capture capacities at different temperatures. The pellets outperformed commercially available LDH-based pellets by several fold.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Qiaoling Kang, Mengyuan Li, Jiangwei Shi, Qingyi Lu, Feng Gao
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Microscopy
Tengfei Guo, Jihao Wang, Wenjie Meng, Jing Zhang, Qiyuan Feng, Ze Wang, Feng Jin, Wenbin Wu, Qingyi Lu, Yubin Hou, Qingyou Lu
Article
Chemistry, Physical
Dawei Lai, Zengrui Wang, Zhenhua Wang, Feng Gao, Qingyi Lu
Summary: The study presents a cost-efficient strategy for fabricating bifunctional phosphorus-doped CoO core@shell microspheres using solvothermal technique, calcination and up-stream gas method, which show great performance in both energy conversion and storage. The resulting P-CoO core@shell structures possess high specific surface area, enhanced conductivity and additional active sites, demonstrating excellent electrocatalytic performances for hydrogen evolution reaction and improved supercapacitive properties for energy storage. This strategy provides a new contribution to develop multifunctional electrochemical-active materials for energy conversion and storage.
JOURNAL OF POWER SOURCES
(2021)
Article
Engineering, Environmental
Qiaoling Kang, Dawei Lai, Mengfei Su, Boru Xiong, Wenyin Tang, Qingyi Lu, Feng Gao
Summary: A crystal morphological evolution mechanism was proposed for the synthesis of hollow nanoframes with unique yolk-shell structure and multiheteroatoms doping, which showed excellent electrochemical catalytic activities for oxygen evolution reaction. The study not only provided novel nanostructures, but also offered a facile strategy for encapsulating active components inside porous substrates, opening up new possibilities for the utilization of nanomaterials as potential catalysts for energy storage and conversion.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Jingrong Zhai, Qiaoling Kang, Qiuyue Liu, Dawei Lai, Qingyi Lu, Feng Gao
Summary: A new MOF material, In-Co PBA nanocubes, is synthesized and transformed into a novel In2O3@In-Co PBA quasi-MOF nanocubes through a controlled low-temperature deligandation process. The novel cubic composite structure exhibits excellent performances in CO2RR electrocatalysis, surpassing most of the reported indium-based catalysts.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Jiangwei Shi, Mengfei Su, Hang Li, Dawei Lai, Feng Gao, Qingyi Lu
Summary: Modifying the separator of lithium-sulfur batteries (LSBs) is an effective strategy for improving their performance. In this study, a stable and lightweight covalent organic framework (COF-TpPa) was fabricated on reduced graphene oxide (rGO) through a solvothermal technique. The modified separator showed high specific capacity and desirable cyclic performance for LSBs, indicating the potential of COF-TpPa in energy storage systems.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Jingrong Zhai, Ye Hu, Mengfei Su, Jiangwei Shi, Hang Li, Yezhi Qin, Feng Gao, Qingyi Lu
Summary: Bismuth and indium species are integrated into a uniform heterogeneous spherical structure, forming a core-shell C@In2O3@Bi-50 catalyst with high selectivity, large partial current density, and long-term stability for electrocatalytic reduction of CO2 to formic acid.
Article
Chemistry, Multidisciplinary
Hang Li, Xinyu Ding, Jiangwei Shi, Mengfei Su, Ye Hu, Chunyan Zhang, Feng Gao, Qingyi Lu
Summary: Defect engineering has played a significant role in promoting the application of various technologies. However, selectively manufacturing defect sites in existing material systems remains challenging. This study demonstrates in situ site-directed tailoring of metal sites in Prussian blue analogs (PBA) by utilizing the reducibility differences of different metal atoms, resulting in naturally nonpreferred unsaturated coordination centers. The in situ capture of small reducing molecules also allows for site-directed tailoring of crystal facets during growth, leading to oriented 1D growth. The resulting PBA with nonpreferred unsaturated coordination centers exhibit excellent catalytic properties for the oxygen evolution reaction, making it suitable for various applications.
Review
Chemistry, Physical
Hang Li, Li Ling, Shengfa Li, Feng Gao, Qingyi Lu
Summary: High entropy nanomaterials (HEMs) have drawn significant attention in recent years due to their unique properties and potential applications in catalysis. This review provides an overview of the synthesis, structural design, and electrocatalytic applications of HEMs. The challenges and potential solutions for studying HEMs are discussed, as well as the superior properties and applications of HEMs in various electrocatalysis reactions. This review aims to promote the development of HEMs in the field of electrocatalysis.
Article
Chemistry, Physical
Dawei Lai, Qiaoling Kang, Feng Gao, Qingyi Lu
Summary: A one-step low temperature sol-gel strategy was proposed to synthesize high-entropy metal phosphide nanoparticles, which exhibited supernormal catalytic activities for the oxygen evolution reaction, hydrogen evolution reaction, and overall water splitting. The increase in metal species number led to decreased overpotentials for OER and HER, demonstrating the significant effect of high entropy on performance enhancement. This work provides a facile synthesis strategy for preparing high entropy compounds with great potential in energy and electrocatalysis applications.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Inorganic & Nuclear
Qiuyue Liu, Qiaoling Kang, Zhenhua Wang, Qingyi Lu, Feng Gao
Summary: A facile one-pot synthesis strategy was developed to fabricate carbon-supported Pd (Pd/C) nanodendrites with high mesoporosity, benefitting from the mesoporous feature, small size, defect-rich surface, and carbon coating, exhibiting great electrocatalytic performance toward the oxygen reduction reaction (ORR).
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Multidisciplinary
Qiaoling Kang, Dawei Lai, Wenyin Tang, Qingyi Lu, Feng Gao
Summary: NiFe alloy catalysts are increasingly studied for their low cost and excellent OER catalytic activity, but the identification of active sites and OER mechanism remains controversial. This review discusses strategies to optimize active sites using amorphous structures and dual-metal single atoms, aiming to shed light on the exploration of novel electrocatalysts in the field of energy.
Article
Chemistry, Physical
Qiaoling Kang, Yezhi Qin, Qingyi Lu, Feng Gao
JOURNAL OF POWER SOURCES
(2020)
Article
Chemistry, Multidisciplinary
Qiaoling Kang, Mengyuan Li, Zengrui Wang, Qingyi Lu, Feng Gao
Article
Chemistry, Multidisciplinary
Yinlin Tong, Liyun Dang, Zengrui Wang, Hao Zhang, Feng Gao, Qingyi Lu
CHEMICAL COMMUNICATIONS
(2019)