Article
Chemistry, Physical
Yilin Zhang, Yanxia Zheng, Xuelian Yu
Summary: Due to the efficient transfer of charges, two-dimensional hetero-junctions have gained significant attention in the field of photocatalysts. However, achieving close interface contact between different materials remains a major challenge. In this study, the hydrogen bonding in graphene carbon nitride (CN) was broken down by alkali conditions, leading to the formation of highly dispersed water-soluble nanowires (S-CN). The self-assembly of S-CN on rGO nanosheets was achieved by recombining hydrogen bonding, resulting in a 2D heterojunction with intimate interfacial contact. The S-CN/rGO (2%) composite exhibited excellent photocatalytic hydrogen production performance, surpassing that of CN/rGO (2%) by five times. Characterization techniques such as FTIR, TEM, XPS, and i-t were employed to investigate the efficient charge transportation and photocatalytic mechanism in the 2D heterostructure. This work provides a new approach for developing novel 2D heterojunctions through intermolecular self-assembly.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Weiying Zhang, Xiang Mei, Lewang Yuan, Gang Wang, Yuexiang Li, Shaoqin Peng
Summary: In this study, the modulation of metal-support interaction (MSI) in graphene-supported Ni catalyst was successfully achieved through an alloying strategy. A reasonable Ni/Cu ratio significantly enhanced the MSI in the NiCu cocatalyst, leading to the presence of smaller NiCu alloy nanoparticles with sufficient active sites and optimized hydrogen adsorption on the NiCu surface. As a result, the NiCu cocatalyst exhibited improved electrocatalytic and photocatalytic HER performance compared to monometallic Ni and Cu catalysts.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Zhiang Luo, Duoping Zhang, Chenghai Ma, Meitong Zhu, Binhao Li, Laidi Song, Shiqi Yang
Summary: A novel two-dimensional graphene oxide/sulfurdoped polyimide (GO/SPI) hybrid polymer photocatalyst was synthesized by a facile ultrasonic chemical method. The characterization results showed that the skeleton structure of SPI was not changed when the few layers of GO were wrapped on the surface. The photogenerated carrier transport capability of the GO/SPI composites was significantly enhanced compared with that of SPI, due to the excellent charge transport characteristics of GO and the strong pi-pi stacking interaction between two-dimensional GO and SPI. The efficient transmission and separation of photogenerated charge carriers significantly improve the photocatalytic degradation of the methyl orange activity of the GO/SPI composite. This work provides a facile and new way for the synthesis of metal-free inorganic- organic composite photocatalysts with high efficiency and low cost.
Article
Chemistry, Multidisciplinary
Zichao Lian, Fan Wu, Jiangzhi Zi, Guisheng Li, Wei Wang, Hexing Li
Summary: Efficient utilization of infrared light is achieved by the discovery of CuS@ZnS shell nanocrystals with strong localized surface plasmon resonance (LSPR) characteristics. These nanocrystals exhibit enhanced photocatalytic activity in hydrogen evolution reaction (HER) and possess high activity and stability under near-infrared light irradiation. The plasmon-induced defect-mediated carrier transfer (PIDCT) at the heterointerfaces of the nanocrystals provides a viable strategy for tuning LSPR-generated carrier kinetics and improving photocatalytic performance.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Energy & Fuels
Weiying Zhang, Ze Li, Hong Li, Weiting Li, Shaoqin Peng, Yuexiang Li
Summary: Developing efficient catalysts for hydrogen evolution reaction (HER) remains a challenge. In this study, an amorphous NiO/reduced graphene oxide (A-NG) composite was successfully synthesized as a cocatalyst for enhanced photo-catalytic H2 evolution via dye sensitization. The characterization results revealed strong interaction between amorphous NiO nanoparticles and graphene sheets, leading to improved adsorption and electron transfer efficiency, resulting in enhanced photocatalytic HER activity.
Article
Nanoscience & Nanotechnology
Kubra Turgut, Sinem Altinisik, Gizem Yanalak, Sermet Koyuncu, Imren Hatay Patir
Summary: Viologens can serve as effective electron-transfer mediators and modifiers for semiconductors in photocatalytic systems. In this study, hybrid photocatalysts composed of TiO2 nanoparticles and star-shaped viologen derivatives were prepared for visible-light-driven hydrogen evolution. TPCBP-E_TiO2 exhibited the highest hydrogen evolution activity among the structures, with superior apparent quantum yield and electron transfer efficiency.
ACS APPLIED NANO MATERIALS
(2023)
Article
Polymer Science
Xianxian Kong, Fan Yang, Xiaoying Li, Mengying Fu, Tao Zeng, Shuang Song, Zhiqiao He, Yan Yu
Summary: A simple calcination procedure under an Ar atmosphere was used to create a covalent triazine framework modified with pyridine-type carbonitride moieties (PCN@CTF). The modification of CTF with PCN resulted in visible light absorption up to 600 nm. Photoluminescence and electrochemical impedance spectroscopy were employed to study the enhanced separation efficiency of photoexcited charge carriers in the modified CTF. The optimized 1%PCN@CTF sample exhibited a photocatalytic hydrogen evolution reaction rate 3.9 times higher than that of the pristine CTF.
Article
Chemistry, Physical
Xue Zhang, Weiwei W. Yu, Guanchao C. Wang, Zhongkui K. Zhao
Summary: A highly efficient visible-light-driven okra-like tubular g-C(3)N(4)photocatalyst (TCNMCA-PImM) was synthesized via pyrolysis of a poly-(imidazolium-methylene) chloride (PImM)-mediated molecular assembly prepared by a hydrothermal process. The optimized photocatalyst showed a hydrogen evolution rate 25.7 times higher than that of bulk g-C3N4. The developed polymeric carbon nitride with unique geometric structure and electronic properties can be applied in other fields such as CO2 capture for carbon neutralization strategy.
Article
Chemistry, Physical
Xia Zhang, Changchao Jia, Jian Liu
Summary: By controlling the ratio of guanidine carbonate in the supramolecular assembly, three-dimensional porous g-C3N4 with controllable morphology were successfully synthesized, showing enhanced light absorption and improved photogenerated carrier separation efficiency. The hydrogen evolution activity and apparent quantum efficiency of the optimized hollow porous polyhedral g-C3N4 were 7.7-fold and 9-fold higher, respectively, compared to microtube materials without guanidine carbonate addition.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Changcun Han, Pengfei Su, Baohua Tan, Xinguo Ma, Hui Lv, Chuyun Huang, Pan Wang, Zhengfu Tong, Gen Li, Yizhong Huang, Zhifeng Liu
Summary: The study improved the preparation process of g-C3N4 and obtained a new photocatalyst H-CN with a higher absorption range and faster hydrogen production activity. An appropriate doping amount of Pt cocatalyst significantly increased the hydrogen production rate of H-CN.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Zhaobo Fan, Xiaojie Zhang, Youji Li, Xin Guo, Zhiliang Jin
Summary: The hydrogen evolution of inorganic photocatalysts is a hot research topic. By constructing p-n type heterojunctions, an internal electric field is formed to prevent charge diffusion and promote the migration of photocarriers. The two-dimensional thin sheet structure of flower cluster NiCo-LDH prevents the agglomeration of Cu2O. The composite catalyst shows significantly increased efficiency in hydrogen evolution under specific conditions, providing an innovative strategy for photocatalytic hydrogen production.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Chemistry, Physical
Haiyan Yu, Haiou Liang, Jie Bai, Chunping Li
Summary: Designing a unique structure for a semiconductor photocatalyst is crucial in enhancing photocatalytic hydrogen evolution. In this study, it was found that adsorbing water molecules inside microporous SiO2 nanotubes can boost the photocatalytic activity. By preparing CuInS2/SiO2 composites, CuInS2 nanoparticles were uniformly deposited on porous SiO2 hollow nanotubes to form a coral-like structure. The CuInS2/SiO2 with a coral structure exhibited a higher hydrogen production rate compared to CuInS2 powder, indicating a novel method to enhance photocatalytic hydrogen evolution.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Xiaodong Yang, Bingjie Zhang, Yujing Gao, Chenjing Liu, Guoping Li, Bin Rao, Dake Chu, Ni Yan, Mingming Zhang, Gang He
Summary: A series of pyrene or pyrene-o-carborane-appendant selenoviologens have been reported for enhanced photocatalytic hydrogen evolution reaction and reduction of alkynes. The efficient photoinduced electron transfer process enables high-efficiency visible-light-driven HER and highly selective phenylacetylene reduction when combined with Pt-NPs catalyst.
Article
Chemistry, Physical
Jianfang Jing, Junshan Li, Yiguo Su, Yongfa Zhu
Summary: The non-covalent donor-acceptor structure composed of ZnTCPP and C60-EDA showed improved separation of photogenerated excitons, resulting in enhanced photocatalytic performance for H2 evolution. The efficient electron transfer channel between ZnTCPP and C60-EDA contributed to the charge separation and faster migration of charge-carriers. The photocatalytic activity of ZnTCPP/C60-EDA for H2 evolution was 113.5 mu mol h-1, which was 3.9 times higher than that of pure ZnTCPP. This work provides valuable insights into non-covalent D-A construction for enhanced photocatalysis.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Lin Qin, Ruijie Wang, Xing Xin, Mo Zhang, Tianfu Liu, Hongjin Lv, Guo-Yu Yang
Summary: A dual-functional supramolecular assembly was successfully prepared by electrostatic integration of a positively-charged chromophore and a negatively-charged catalyst, which can efficiently act as both a light absorber and a hydrogen production catalyst under visible light irradiation. Mechanistic studies revealed the presence of oxidative and reductive quenching processes during photocatalysis, and confirmed that the formation of ordered supramolecule is beneficial for effective electron transfer.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Analytical
Qihua Liang, Xiaoxin Zou, Hui Chen, Meihong Fan, Guo-Dong Li
SENSORS AND ACTUATORS B-CHEMICAL
(2020)
Article
Chemistry, Multidisciplinary
Zhankai Zhang, Qihua Liang, Jiayu Li, Xiao Liang, Lan Yang, Qi Zhang, Xiaoxin Zou, Hui Chen, Guo-Dong Li
Summary: The development of 2D ultrathin bimetallic nickel-indium oxide nanosheets as xylene sensing materials has shown significant improvement in sensitivity, outperforming pristine NiO while operating at a low temperature of 160 degrees C.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Analytical
Qihua Liang, Yunjia Guo, Hui Chen, MeiHong Fan, Ni Bai, Xiaoxin Zou, Guo-Dong Li
Summary: In this study, porous Ga-In bimetallic oxide with atomically thin pore wall was synthesized by electrospinning and calcination, and a sensor based on this material exhibited ultrashort response and recovery time, high sensitivity and selectivity towards hydrogen. The enhanced performance of this material can be attributed to its novel atomically thin wall, optimal Fermi level and abundant chemisorbed oxygen.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Xiaoyi Li, Jianfeng Huang, Liangliang Feng, Danyang He, Zixuan Liu, Guodong Li, Ning Zhang, Yongqiang Feng, Liyun Cao
Summary: This study successfully synthesized molybdenum and cobalt co-doped VC nanoparticles encapsulated in nanocarbon as a catalyst for the electrocatalytic hydrogen evolution reaction. The catalyst exhibited low overpotential and Tafel slope, as well as outstanding long-term durability. The excellent performance can be attributed to the optimized electronic structure, improved conductivity, and abundant catalytic active sites.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Physical
Liyun Cao, Yifei Zhang, Liangliang Feng, Danyang He, Qianqian Liu, Yingbo Gong, Guodong Li, Jianfeng Huang
Summary: The introduction of Zn2+ and oxygen doping into a three-dimensional coral-like Zn,O-codoped Ni3S2 nanostructure grown on nickel foam enhances catalytic activity and increases active sites, while also improving intrinsic electronic conductivity of Ni3S2 for faster charge transfer during oxygen and hydrogen evolution reactions. As a result, the ZO-Ni3S2/NF electrocatalyst exhibits excellent performance for both oxygen and hydrogen evolution reactions at high current densities.
SUSTAINABLE ENERGY & FUELS
(2022)
Article
Green & Sustainable Science & Technology
Xiaodong Yang, LiLi Wang, Jin Tong, Xueqin Shao, Rui Chen, Qiang Yang, Fangfei Li, Bing Xue, Guodong Li, Ye Han, Xizhen Yang, Andrew R. R. Zimmerman, Bin Gao
Summary: A novel acidic ball milling method was designed to fabricate porous biochar directly from hickory wood, which showed higher adsorption capacity for organic dyes. This method has the potential to be a convenient and efficient approach for environmental remediation and water treatment applications.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Physical
Tianrun Zheng, Zhenyu Li, Jiayu Li, Zexuan Zheng, Qihua Liang, Hui Chen, Ni Bai, Xiaoxin Zou, Guo-Dong Li
Summary: A series of indium tin oxide (ITO) microspheres were synthesized, and the 10.7% In-doped SnO2 (ITO-II) based sensor showed high sensitivity, excellent selectivity, great stability, and ultra-fast dynamic process at a low working temperature of 200 degrees C. The excellent hydrogen sensing performance of ITO-II is due to the increased chemisorbed oxygen and the high intrinsic reactivity of SnO2 toward hydrogen. This work provides inspiration for the design of novel hydrogen sensing materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Xinhua Tian, Jiayu Li, Qiuju Li, Mingcheng Zhang, Xiaoxin Zou, Jiaqi Jia, Guo-Dong Li
Summary: NiGa2O4 nanosheets with a thickness of about 3 nm were successfully prepared and used to fabricate a gas sensor with high response to xylene, remarkable selectivity, low detection limit (0.3 ppm) and excellent stability at low optimum working temperature (190 degrees C). This work has promoted the development of high-performance gas sensors based on two-dimensional and wide band gap metal oxide semiconductor materials.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Meng Zhang, Qingqing Chen, Jingjing Zhang, Guodong Li, Sailong Xu, Lan Yang, Ying Guo
Summary: Controllable composites of Li+-doped ZnO with hierarchical spindle structures were successfully prepared in this study. By introducing Li+ as a cation with strong adsorption capacity, the humidity sensing performance of the hierarchical spindle was greatly improved and became controllable. Li+-doped ZnO composite not only maintained the hierarchical spindle structure, but also improved the adsorption speed and reduced the response time.
Article
Chemistry, Multidisciplinary
Liangliang Feng, Xiao Zhang, Jianfeng Huang, Danyang He, Xiaoyi Li, Qianqian Liu, Yongqiang Feng, Guodong Li, Guanghui Xu, Liyun Cao
Summary: An advanced bifunctional electrocatalyst, Fe2P@Fe3C/CNTs, shows outstanding HER and ORR performances due to its unique Fe2P@C core-shell structures, abundant Fe3C nanodots incorporated in carbon nanowalls, and good electrical conductivity of 2D graphitic carbon nanotubes.
Article
Chemistry, Multidisciplinary
Danyang He, Liyun Cao, Jianfeng Huang, Linlin Wang, Guodong Li, Zhenting Liu, Yongqiang Feng, Yijun Liu, Limin Pan, Liangliang Feng
Summary: A unique vanadium-mediated space confined strategy was used to construct a composite structure involving Co/Co9S8 nanoparticles anchored on Co-N-doped porous carbon (VCS@NC) as bifunctional electrocatalysts, demonstrating exceptional catalytic activity for HER and ORR. The resulting VCS@NC catalyst exhibited high efficiency and durability, surpassing the performance of commercial Pt/C catalyst in ORR.
Article
Chemistry, Inorganic & Nuclear
Jiayu Li, Qihua Liang, Bo Zhang, Hui Chen, Xinhua Tian, Meihong Fan, Yunjia Guo, Ni Bai, Xiaoxin Zou, Guo-Dong Li
Summary: In this study, the olivine-structured Cd2GeO4 was identified as an excellent formaldehyde sensing material, showing high response, short response time, and low detection limit, making it promising for practical applications.
INORGANIC CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Inorganic & Nuclear
Jia yun Zou, Jie Ji, Mei hong Fan, Jia yu Li, Hai yu Wang, Guo-Dong Li
Summary: A novel multichromic cationic coordination polymer with good photosensitivity was synthesized in this work, showing rapid color changes in response to UV and blue light, hydrochromism when heated, and the ability to detect aniline and NO2- under low-concentration conditions.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Inorganic & Nuclear
Qianqian Liu, Jianfeng Huang, Dan Yang, Yongqiang Feng, Guodong Li, Xiao Zhang, Yifei Zhang, Guoting Xu, Liangliang Feng
Summary: The study demonstrates the in-situ generation of NiCoV-LTH to enhance HER performance on nickel foam. The introduction of Co induces the formation of porous nanosheets and exposes active sites, accelerating the HER process.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Multidisciplinary
Qiuju Li, Lina Wang, Xuan Ai, Hui Chen, Jiayun Zou, Guo-Dong Li, Xiaoxin Zou
CHEMICAL COMMUNICATIONS
(2020)
Article
Chemistry, Physical
Zi-Ye Liu, Qian-Yu Wang, Ji-Ming Hu
Summary: In this study, a layered carbon dot composite catalyst (NiFe LDH@CDs) was prepared using a one-step coprecipitation method, without the need for heating or hydrothermal treatment. The CD-functionalized catalyst facilitated rapid charge transfer and accelerated the oxygen evolution reaction. Additionally, the heterojunction structure formed between NiFe LDH and CDs efficiently suppressed photoelectron-hole recombination.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
Rohit Kumar, Ankit Kumar Srivastava, Palaniyappan Nagarasu, Vedichi Madhu, Ekambaram Balaraman
Summary: We designed and synthesized a NN-CoII bidentate complex and used it for the amination of alcohols under mild and solventless conditions. The complex exhibited good reactivity towards both primary and sterically hindered secondary alcohols, providing high yields of amines. The pyrazole moiety in the ligand played a crucial role in the reaction. Furthermore, we demonstrated the reusability of the complex as a homogeneous cobalt catalyst.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
Shivanand Chettri, Liang-Ting Wu, Sagarmani Rasaily, Debesh Sharma, Bikram Gurung, Rajani Dewan, Sudarsan Tamang, Jyh-Chiang Jiang, Anand Pariyar
Summary: Replicating the enzymatic surface microenvironment in vitro is challenging, but constructing an analogous model could facilitate our understanding of surface effects and aid in developing an efficient bioinspired catalytic system. In this study, five unique Cu2O morphologies were generated, and the surface morphology variations were found to be a consequence of differences in the exposure of low-index facets. The reactivity of Cu2O was found to be influenced by the proportion of {110} planes, with r-Cu2O exhibiting the highest reactivity.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
Yong Tang, Jianhao Qiu, Dingliang Dai, Guanglu Xia, Lu Zhang, Jianfeng Yao
Summary: Defect engineering has been shown to improve the photocatalytic performance. This study investigated the use of defect-rich UiO-66-NH2 wrapped by ZnIn2S4 as a catalyst for photocatalytic H2O2 production. The defects in UiO-66-NH2 enhanced O-2 adsorption and charge separation, leading to higher H2O2 yield. The insights from this work can advance the research in defect engineering of MOFs and photocatalytic H2O2 synthesis.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
Ruiyang Qu, Shuxin Mao, Jana Weiss, Vita A. Kondratenko, Evgenii V. Kondratenko, Stephan Bartling, Haifeng Qi, Annette-Enrica Surkus, Kathrin Junge, Matthias Beller
Summary: The hydrogenation of amides, a challenging reaction usually performed at high temperatures, has been achieved under milder conditions using a new Pt-MoOx/TiO2 catalyst. This catalyst system enables the selective hydrogenation of various amides and imides.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
Xiaoran Niu, Ao Wang, Lei Tong, Lei Wang, Yuan Kong, Chenliang Su, Hai-Wei Liang
Summary: This study introduces a novel intermetallic PdCu3 catalyst supported on defective nanodiamond-graphene (ND@G), which exhibits high selectivity (95%) and remarkable activity (turnover frequency: 2940 h(-1)), six times higher than that of the commercial Lindlar catalyst.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Review
Chemistry, Physical
Zhiyuan Zheng, Yiming Yue, Hongying Zhuo, Qinggang Liu, Yanqiang Huang
Summary: This review presents the recent research advances on single-atom catalysis for deep reduction of CO2. Detailed introductions and summaries were classified into three categories based on proton-coupled multi-electron transfer approaches: strengthening metal-support interaction, rational design and regulation of coordination environment, and development of SACs with multi-atom active sites. The challenges and future research directions in the field of SACs for CO2 reduction are also proposed.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
Shiv Kumar, Paramita Datta, Anup Bhunia, Swadhin K. Mandal
Summary: This article reports a transition-metal-free process for in situ denitrogenation of tosylhydrazones, resulting in the production of various sulfones. The authors used a phenalenyl-based odd alternant hydrocarbon as a photoredox catalyst, which acted as a potent oxidant to facilitate the denitrogenation reaction. The method showed wide functional-group tolerance and high yields, making it suitable for late-stage modification of natural products.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
L. A. Luque-Alvarez, J. Gonzalez-Arias, F. Romero-Sarria, T. R. Reina, L. F. Bobadilla, J. A. Odriozola
Summary: Currently, the production of acetic acid through the carbonylation reaction of methanol has limitations, leading to the exploration of alternative methods using heterogeneous catalysts. This study investigates the methanol carbonylation reaction over a Cu-H-MOR catalyst and proposes a reaction mechanism based on the catalytic behavior and performance of the catalyst. The results provide insights into the reaction mechanism and the involvement of acid and redox centers.
CATALYSIS SCIENCE & TECHNOLOGY
(2024)
