Article
Chemistry, Physical
Shuang Zong, Jincheng Liu, Jia Zheng, Xuyang Feng, Lingling Liu, Yanxiong Fang
Summary: In this work, direct photocatalytic hydrogen evolution was achieved using substoichiometric MoO3-x ultrathin nanowires and sacrificial triethanolamine. MXene Ti3C2Tx was introduced as a cocatalyst to enhance hydrogen and oxygen production. This method shows promise for research in energy and allied fields.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Madeleine Han, Isabel Gomez-Recio, Daniel Gutierrez Martin, Nathaly Ortiz Pena, Maria Luisa Ruiz-Gonzalez, Mohamed Selmane, Jose M. Gonzalez-Calbet, Ovidiu Ersen, Andrea Zitolo, Benedikt Lassalle-Kaiser, David Portehault, Christel Laberty-Robert
Summary: Manganese and cobalt perovskite oxides are highly active electrocatalysts for ORR and OER. By synthesizing different perovskite nanoparticles and using X-ray absorption spectroscopy and electron energy loss spectroscopy, we found that the oxidation states of Mn and Co in single B-site perovskites change during electrocatalysis, while they remain unchanged in mixed Mn/Co perovskite. This study highlights the importance of cationic composition and vacancy control in tuning oxygen electrocatalysis.
Article
Chemistry, Physical
Madeleine Han, Isabel Gomez-Recio, Daniel Gutierrez Martin, Nathaly Ortiz Pena, Maria Luisa Ruiz-Gonzalez, Mohamed Selmane, Jose M. Gonzalez-Calbet, Ovidiu Ersen, Andrea Zitolo, Benedikt Lassalle-Kaiser, David Portehault, Christel Laberty-Robert
Summary: Manganese and cobalt perovskite oxides are highly active electrocatalysts for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), respectively. The role of cationic composition and charge state in these perovskites in the mechanism of oxygen electrocatalysis for ORR and OER have been questioned. The results suggest that cationic substitutions and control of cationic vacancies can tune the rate-determining steps of the electrocatalytic cycles.
Article
Chemistry, Multidisciplinary
Jehad Abed, Shideh Ahmadi, Laura Laverdure, Ahmed Abdellah, Colin P. O'Brien, Kevin Cole, Pedro Sobrinho, David Sinton, Drew Higgins, Nicholas J. Mosey, Steven J. Thorpe, Edward H. Sargent
Summary: A novel synthesis method of nanocrystalline Ni-Co-Se using ball milling at cryogenic temperature is reported, with an anodizing mechanism discovered during OER to enhance the electrocatalyst performance. The resulting electrocatalyst shows sustained performance in various devices, including water electrolyzer and CO2-to-ethylene electrolyzer, achieving record-setting full cell voltage at high current density.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Daniel F. Abbott, Yuan-Zi Xu, Denis A. Kuznetsov, Priyank Kumar, Christoph R. Mueller, Alexey Fedorov, Victor Mougel
Summary: In this study, the catalytic activity of a Fe-substituted two-dimensional molybdenum carbide in nitrate reduction reaction (NO3RR) was investigated. The results showed that the catalyst exhibited high efficiency in both acidic and neutral media. The formation of surface oxygen vacancies promoted by Fe sites was identified as the active sites for NO3RR, similar to the mechanism of natural Mo-based nitrate reductase enzymes.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Applied
Tsai-Te Wang, Yi-Ting Yang, Suh-Ciuan Lim, Chao-Lung Chiang, Je-Sie Lim, Yu-Chang Lin, Chun-Kuo Peng, Ming-Chang Lin, Yan-Gu Lin
Summary: The efficacy of treatment with hydrogen and Ag-Cu co-deposition on TiO2 photocatalysts has been investigated computationally and experimentally. The results show that the hydrogenated Ag-Cu with co-loaded TiO2 achieved a photoactivity about 110 times greater than that of pristine TiO2. This enhancement is attributed to the synergy between new electronic states and lattice distortion. Soft X-ray spectra and quantum-chemical calculations provide evidence for this mechanism. The photocatalytic process involves the transfer of photo-excited electrons from the bimetallic Ag-Cu to the TiO2 conduction band, as observed through in situ soft X-ray absorption spectra (XAS). The coupling of hydrogenation with bimetallic Ag-Cu onto TiO2-based photocatalysis offers a promising solution for environmental and energy applications.
Review
Chemistry, Multidisciplinary
Ting-Yu Shuai, Qi-Ni Zhan, Hui-Min Xu, Chen-Jin Huang, Zhi-Jie Zhang, Gao-Ren Li
Summary: MXenes are two-dimensional materials with a graphene-like structure, possessing excellent optical, biological, thermodynamic, electrical, and magnetic properties. With the diversity resulting from the combination of transition metals and C/N, the MXene family has expanded and applied in various fields. Among their applications, breakthroughs have been achieved in electrocatalysis. This review summarizes the preparation and electrocatalytic applications of MXenes in the past five years, highlighting the methods for their preparation and their modification for improved performance. The synthesis of MXene nitrides and environmentally friendly industrial production routes are also emphasized.
CHEMICAL COMMUNICATIONS
(2023)
Review
Energy & Fuels
Himadri Tanaya Das, Tamilarasan Elango Balaji, Swapnamoy Dutta, Nigamananda Das, Thandavarayan Maiyalagan
Summary: Electrocatalysis plays a crucial role in sustainable energy-economy development, but the shortage of catalysts has been a hindrance. MXenes, with characteristics like hydrophilicity, superior conductivity, and facile processing techniques, are recommended as excellent electrocatalysts. This article illustrates important synthesis strategies, applications, and pros and cons of MXenes, and encourages researchers from different scientific fields to contribute to expand this research.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
Rohit Anand, Babu Ram, Muhammad Umer, Mohammad Zafari, Sohaib Umer, Geunsik Lee, Kwang S. Kim
Summary: Designing efficient bifunctional and multifunctional catalysts is crucial for the development of clean and renewable energy technologies. By incorporating non-noble metal atoms onto the surface of MXenes, their properties can be modified. Using machine learning and density functional theory, we systematically screened and investigated different MXene combinations to explore their catalytic abilities.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Multidisciplinary
Jinwen Hu, Wenzhe Shang, Cuncun Xin, Jingya Guo, Xusheng Cheng, Songlin Zhang, Suchan Song, Wei Liu, Feng Ju, Jungang Hou, Yantao Shi
Summary: Understanding the nature and spectroscopic fingerprints of single-atom catalytic sites is crucial for designing target catalysts. In this study, in situ X-ray absorption and infrared spectroscopy were used to investigate the edge-site-specific chemistry of Co-N-C electrocatalyst during the oxygen reduction reaction. The unique edge-hosted architecture allows for remarkable structural flexibility of single-atom Co site, resulting in dynamic oxo adsorption and valence state changes. Theoretical calculations show that the in situ reconstructed Co-1-N-2-oxo and peripheral oxygen groups synergistically enhance the adsorption of *OOH intermediate and increase the activation barrier for its dissociation, leading to robust acidic ORR activity and 2e(-) selectivity for H2O2 production.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Yi-Hsuan Wu, Harshit Mehta, Elena Willinger, Jodie A. Yuwono, Priyank V. Kumar, Paula M. Abdala, Anna Wach, Agnieszka Kierzkowska, Felix Donat, Denis A. Kuznetsov, Christoph R. Mueller
Summary: Establishing generic catalyst design principles by identifying structural features of materials that influence their performance will advance the rational engineering of new catalytic materials. This study investigates the activity of metal-substituted manganese oxide (spinel) nanoparticles for the electrocatalytic oxygen reduction reaction (ORR) and rationalizes it based on the enthalpy of formation of the binary MO oxide, ΔH-f degrees(MO), and the Lewis acidity of the M2+ substituent. The incorporation of elements M with low ΔH-f degrees(MO) enhances the oxygen binding strength in Mn3O4:M, which affects its activity in ORR. Our work provides insights into the design of new compositions for oxygen electrocatalysis using rational substitution/doping by redox-inactive elements.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Nanoscience & Nanotechnology
Yunfei Gao, Tomoki Uchiyama, Kentaro Yamamoto, Toshiki Watanabe, Neha Thakur, Ryota Sato, Toshiharu Teranishi, Hideto Imai, Yoshiharu Sakurai, Yoshiharu Uchimoto
Summary: In this study, platinum catalysts were covered by an ultra-thin two-dimensional nitrogen-doped carbon shell (CNx) to protect them from the specific adsorption of perfluorosulfonic acid ionomers. The coated catalysts, obtained using a simple polydopamine coating method, demonstrated superior oxygen reduction reaction activity and comparable oxygen diffusivity to commercial Pt/C. XPS and CO stripping analyses confirmed the changes in electronic states, and oxygen coverage, CO displacement charge, and operando XAS tests were used to identify the protective effect of CNx.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Ceramics
Yang Yue, Yanxiang Wang, Xiaodan Xu, Chengjuan Wang, Zhiqiang Yao, Dongming Liu
Summary: In this study, carbon nanotubes were grown on the surface of MXene at ultra-low temperature, solving the issue of high temperature damaging the integrity of MXene structure. The resulting CNT/MXene hybrid exhibited a three-dimensional conductive network structure, optimizing the impedance matching and showing significant dielectric loss, leading to high EMW absorption performance.
CERAMICS INTERNATIONAL
(2022)
Article
Multidisciplinary Sciences
J. Niskanen, A. Vladyka, J. Niemi, C. J. Sahle
Summary: In this study, we explore the sensitivity of several core-level spectroscopic methods to the atomistic structure using water molecule as a test system. We define a metric to measure the magnitude of spectral change as a function of structure, which enables us to identify structural regions with high spectral sensitivity. By employing machine-learning emulator-based decomposition of structural parameter space, we are able to recover more spectral variance and identify spectroscopically dominant degrees of freedom.
ROYAL SOCIETY OPEN SCIENCE
(2022)
Article
Chemistry, Physical
Yuande Shi, Jiannan Cai, Xiaofeng Zhang, Zhongshui Li, Shen Lin
Summary: In this study, Co-Ni (trace)/NCNTs with superior dual-functional electrocatalytic performance for ORR and OER were successfully synthesized using a one-pot vapor deposition method. The catalyst showed excellent stability during durability testing and provides a feasible strategy for designing efficient nonnoble metal-catalysts for renewable energy conversion devices.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Biochemistry & Molecular Biology
Yongjing Tian, Haibin Sun, Yinshengboer Bao, Haiping Feng, Jian Pang, Riletu En, Hongliang Jiang, Tengqi Wang
Summary: This study found that ERp44 expression was significantly decreased in gastric cancer tissues. Overexpression of ERp44 inhibited the proliferation, migration, and invasion of cancer cells while promoting apoptosis. Mechanistically, ERp44 regulated malignant biological processes through the eIF-2α/CHOP signaling pathway. Targeting ERp44 and endoplasmic reticulum stress may be a promising strategy for gastric cancer treatment.
BIOCHEMICAL GENETICS
(2023)
Editorial Material
Multidisciplinary Sciences
Shijia Li, Chuqian Xiao, Hongliang Jiang, Yuhang Li, Chunzhong Li
Article
Medicine, General & Internal
Youyi Liu, Mengdi Wu, Jingrou Guo, Yifei Tang, Hongliang Jiang, Bo Yang, Minchen Wu, Jianfeng Huang
Summary: Radiation-induced lung injury (RILI) is a potentially fatal complication of radiotherapy for thoracic tumors. Early detection and intervention are crucial for improving outcomes. However, there is a lack of reliable biomarkers for early prediction and diagnosis of RILI. In this study, we explored specific inflammation-related biomarkers and identified S100A9 as a potential biomarker for early prediction and diagnosis of RILI.
JOURNAL OF CLINICAL MEDICINE
(2023)
Review
Chemistry, Multidisciplinary
Dengfeng Cao, Wenjie Xu, Shuangming Chen, Chongjing Liu, Beibei Sheng, Pin Song, Oyawale Adetunji Moses, Li Song, Shiqiang Wei
Summary: The importance of catalysts in modern industrial fields cannot be underestimated. Rational design and engineering of targeted catalysts require in-depth understanding of complex catalytic dynamics. Synchrotron radiation (SR) light sources with advanced experimental methods have become a comprehensive characterization platform for studying catalysis under actual working conditions. This article summarizes the recent progress of catalytic dynamics process studied using various SR techniques, and emphasizes the need for a combination of multiple SR techniques to better understand the whole catalysis process. The development of new light sources is expected to enrich the current multiple SR techniques and visualize future catalytic dynamic processes.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xiao-Jing Liu, Yue Yu, Di Liu, Qi-Long Cui, Xiaozhuo Qi, Yang Chen, Guangyuan Qu, Li Song, Guo-Ping Guo, Guang-Can Guo, Xiankai Sun, Xi-Feng Ren
Summary: This work demonstrates experimentally that the photoluminescence from WS2 can be coupled into a BIC waveguide on a LNOI substrate, offering a new perspective for light-matter coupling in monolithic PICs by breaking through the limits of 2D-material integration with conventional photonic architectures.
Article
Multidisciplinary Sciences
Shengmei Chen, Yiran Ying, Longtao Ma, Daming Zhu, Haitao Huang, Li Song, Chunyi Zhi
Summary: The authors address the contradictory demands from zinc metal anode and cathodes in zinc metal batteries by designing an asymmetric electrolyte composed of an inorganic solid-state electrolyte and a hydrogel electrolyte.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Chunmei Lv, Kai Huang, Yu Fan, Jing Xu, Cheng Lian, Hongliang Jiang, Yongzheng Zhang, Cheng Ma, Wenming Qiao, Jitong Wang, Licheng Ling
Summary: By rationally designing porous structures and confining Ni-N4 active sites in the interconnected pore structure, nitrogen-doped porous carbon nanospheres decorated by single Ni atom (Ni-NCN) show excellent activity and high selectivity for CO2 reduction to CO.
Editorial Material
Chemistry, Physical
Wangxin Ge, Yihua Zhu, Hongliang Jiang, Chunzhong Li
Summary: In a recent publication in Nature, Yang et al. utilized multimodal operando techniques to investigate the structural dynamics of Cu nanocatalysts throughout their life cycle, revealing metallic Cu nanograin boundaries as the active sites for promoting C-C coupling.
Article
Engineering, Chemical
Lei Dong, Wangxin Ge, Yu Fan, Wenfei Zhang, Hongliang Jiang, Yongqing Zhao, Chunzhong Li
Summary: Cu-based catalysts combined with CTAB as electrolyte additives were used to improve the formate selectivity and partial current density of CO2RR. The hydrophobic interface microenvironment was created by CTAB and disrupted the interaction between interfacial water and surface-adsorbed CO. This study provides a new perspective on controlling the microenvironment to enhance electrosynthesis performance.
Article
Chemistry, Multidisciplinary
Xiaoli Jiang, Lei Tang, Lei Dong, Xuedi Sheng, Wenfei Zhang, Zhen Liu, Jianhua Shen, Hongliang Jiang, Chunzhong Li
Summary: In this study, density functional theory (DFT) simulations were used to investigate the site isolation strategy in electrocatalytic selective hydrogenation of acetylene. The results showed that isolated Cu metal sites have higher energy barriers on overhydrogenation and C-C coupling reactions. Based on this, Cu single-atom catalysts highly dispersed on nitrogen-doped carbon matrix were developed and demonstrated high ethylene selectivity under high concentrations of acetylene. The superior performance was attributed to the weak adsorption of ethylene intermediates and highly energy barriers on C-C coupling at isolated sites, as confirmed by both DFT calculations and experimental results. This study provides a comprehensive understanding of the isolated sites inhibiting the side reactions in electrocatalytic acetylene semihydrogenation.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Multidisciplinary Sciences
Wenfei Zhang, Yanbin Qi, Yuan Zhao, Wangxin Ge, Lei Dong, Jianhua Shen, Hongliang Jiang, Chunzhong Li
Summary: This study proposes a design strategy to regulate active hydrogen (Hads) production, achieving highly selective electrocatalytic conversion of biomass-derived 5-hydroxymethylfurfural (HMF) to 2,5-bis (hydroxymethyl)furan (BHMF). Rhodium (Rh) nanoparticles grown on Cu nanowires (RhCu NWs) catalyst is used, which accelerates water dissociation and facilitates Hads generation. The construction of an interfacial Hads-rich environment promotes the formation of BHMF and suppresses the formation of undesired dimers.
Review
Medicine, General & Internal
Fen Xu, Hong-Liang Jiang, Wei-Wei Feng, Chen Fu, Jiang-Chang Zhou
Summary: Metabolomics research in cancer screening and treatment has gained attention in recent years. It is a popular technique for quantitatively characterizing small molecular compounds in biological cells, tissues, organs, or organisms. Changes in amino acid metabolism in tumors play a crucial role in their growth and metabolism, making the study of amino acid metabolism characteristics particularly important in colorectal cancer.
WORLD JOURNAL OF CLINICAL CASES
(2023)
Article
Multidisciplinary Sciences
Zhaolu Zhang, Kai Huang, Xinyue Qiu, Wangxin Ge, Xiaoling Yang, Yihua Zhu, Cheng Lian, Honglai Liu, Hongliang Jiang, Zhong Li
Summary: This work demonstrated a highly efficient electrochemical conversion of 5-hydroxymethylfurfural to 2,5-bis(hydroxymethyl)furan and developed a highly porous Cu-based catalyst with high BHMF selectivity and long-term stability. The electrochemically generated catalyst with abundant Cu/Cu2O interfaces was identified as the catalytically active phase for HMF conversion through structural characterizations.
FUNDAMENTAL RESEARCH
(2023)
Article
Chemistry, Physical
Chunxiao Dong, Li Yang, Cheng Lian, Xiaoling Yang, Yihua Zhu, Hongliang Jiang, Chunzhong Li
Summary: Defective graphene catalysts were synthesized by pyrolyzing a mixture of glucose and carbon nitride, showing higher power density in a primary Zn-air battery compared to commercial Pt/C catalyst. This study presents a facile and low-cost strategy for the preparation of highly active nanocarbon electrocatalysts.
GREEN ENERGY & ENVIRONMENT
(2023)
Article
Emergency Medicine
Liming Cao, Lijie Ren, Hongliang Jiang, Jiahua Li, Guozhen Qiu, Feng Chi
Summary: Currently, there is no consensus on the cost-effective method for evaluating the leptomeningeal collateral (LMC) status, and few studies have investigated the relationship between LMC status and short-term neurological improvements in patients with acute middle cerebral artery (MCA) stroke. This study aimed to evaluate the LMC status using single-phase computed tomography angiography (CTA) and assess its effect on short-term outcomes in patients with acute MCA regional ischemic stroke without reperfusion therapy.
