Article
Chemistry, Physical
Thanh Son Phan, Doan Pham Minh
Summary: Dry reforming of methane (DRM) is a promising process for producing synthetic gas, and the design of an effective catalyst is crucial. In this study, nickel catalysts supported by calcium hydroxyapatite (HAP) and HAP-doped magnesium (Mg_HAP) were synthesized and evaluated in the DRM reaction. The Ni/HAP and Ni/Mg_HAP catalysts showed outstanding performance due to the tunable acidity-basicity of the supports, strong metal-support interaction, and good thermal stability of nickel nanoparticles. The main products were H2 and CO, with stable selectivity around 85%, while H2O and solid carbon were byproducts with 5-10% selectivity.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Daichi Takami, Junya Tsubakimoto, Wirya Sarwana, Akira Yamamoto, Hisao Yoshida
Summary: The design of optimized photothermal catalysts is essential for the efficient conversion of CO2 into syngas using solar energy. This study demonstrated that silica-supported nickel catalysts prepared via Ni phyllosilicate exhibited superior catalytic performance and resistance to sintering and carbon deposition under visible and near-infrared light. The loading of nickel had positive and negative effects on the surface temperature and light absorption capacity, which influenced the photothermal catalytic activity for methane dry reforming.
ACS APPLIED ENERGY MATERIALS
(2023)
Review
Chemistry, Physical
Bernard Chukwuemeka Ekeoma, Mohammad Yusuf, Khairiraihanna Johari, Bawadi Abdullah
Summary: Dry reforming of methane (DRM) is a green alternative for utilizing greenhouse gases and producing syngas. The main limitations of DRM are catalyst sintering and coking. Recent studies have focused on Ni-based catalysts for DRM due to economic constraints on noble metal-based catalysts. Mesoporous silica (MS) supported catalysts show promise due to their high surface areas, thermal stability, and easy availability. However, research on MS as a catalyst support for DRM is still limited.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Intan Clarissa Sophiana, Ferry Iskandar, Hary Devianto, Norikazu Nishiyama, Yogi Wibisono Budhi
Summary: Dry reforming of methane was studied using high-ratio zirconia in ceria-zirconia-mixed oxide-supported Ni catalysts. The effects of the catalyst support and Ni composition on the catalyst performance were investigated. The results showed that the 10%Ni/CeZrO2 catalyst exhibited the highest catalytic performance, with a high H-2/CO ratio indicating superior hydrogen production.
Article
Chemistry, Applied
Pedro Nothaft Romano, Jose Faustino Souza de Carvalho Filho, Joao Monnerat Araujo Ribeiro de Almeida, Eduardo Falabella Sousa-Aguiar
Summary: A series of mono and bimetallic catalysts based on Ni, Rh, and Pd supported on different materials were evaluated for the dry reforming of methane reaction. Ni-based catalysts suffered from deactivation but could be regenerated, while Pd-based catalysts deactivated due to coke deposition. Rh-based catalysts showed remarkable activity and stability.
Article
Engineering, Environmental
Xinxin Dong, Jinji Xi, Bing Song, Mengjie Zhang, Baosheng Jin
Summary: In this study, waste granular silica gel was reused as a nickel-based catalyst support. The Ni/WGSG catalysts showed good performance in the dry reforming of methane (DRM) reaction, with the Ni/WGSG-2 catalyst exhibiting the highest activity. The catalysts also demonstrated good stability under different working conditions.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Energy & Fuels
Anh Ngoc T. Cao, Cham Q. Pham, Tung M. Nguyen, Thuan Van Tran, Pham T. T. Phuong, Dai-Viet N. Vo
Summary: Dysprosium (Dy) promoted Co/Al2O3 catalysts with different Dy loadings were synthesized and found to enhance the basicity and activity of the catalysts for methane dry reforming. The addition of Dy reduced the crystallite size of Co3O4, resulting in better metal dispersion and higher catalytic performance. The optimal Dy loading was found to be 0.3 wt%, achieving the highest CH4 conversion and H-2 and CO yields.
Article
Chemistry, Multidisciplinary
Jehad Saleh, Ahmed Sadeq Al-Fatesh, Ahmed Aidid Ibrahim, Francesco Frusteri, Ahmed Elhag Abasaeed, Anis Hamza Fakeeha, Fahad Albaqi, Khalid Anojaidi, Salwa B. B. Alreshaidan, Ibrahim Albinali, Abdulrahman A. A. Al-Rabiah, Abdulaziz Bagabas
Summary: The impact of rhodium oxide (Rh2O3) doping on the activity and stability of nickel catalysts supported over yttria-stabilized zirconia in dry reforming of methane (DRM) was studied at 800 degrees C using various characterization techniques. The addition of 4.0 wt.% Rh2O3 enhanced the activation of the catalysts and reduced the surface basicity, leading to optimal conversions of CH4 and CO2 of around 89% and 92%, respectively. The incorporation of Rh2O3 in the range of 0.0-4.0 wt.% loading improved DRM and reduced the reverse water gas shift effect, resulting in increased stability by decreasing carbon formation on the catalysts.
Article
Chemistry, Physical
Defang Liang, Yishuang Wang, Mingqiang Chen, Xuanlan Xie, Chang Li, Jun Wang, Liang Yuan
Summary: This study successfully synthesized a highly efficient Ni-Co alloy catalyst, which can effectively treat greenhouse gases and produce high-value products through methane dry reforming. The research provides important guidance for the development of clay-based metallic Ni catalysts and their applications in syngas production.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Anh Ngoc T. Cao, Cham Q. Pham, Le Kim Hoang Pham, Dang Le Tri Nguyen, Pham T. T. Phuong, Thi Tuong Vi Tran, Van-Phuoc Nguyen, Thanh Binh Nguyen, Quyet Van Le, Ngoc Anh Nguyen, Tung M. Nguyen
Summary: The metal-support interface plays a crucial role in the dispersion and catalytic activity of catalysts. This study investigated the effect of cerium on cobalt catalyst supported on gamma-alumina and found that cerium promoted the dispersion and reducibility of cobalt, leading to improved conversion of methane and carbon dioxide.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Robert Cherbanski, Tomasz Kotkowski, Eugeniusz Molga
Summary: Nickel-based catalysts used in the dry reforming of methane (DRM) face issues of coking and sintering, which limit their industrial application. The addition of an anti-coking additive (CaO) to a commercial nickel catalyst was investigated using thermogravimetric analysis. It was observed that the catalyst sintered at temperatures between 850 and 900 degrees C, leading to permanent deactivation. The coking and carbon gasification rates were found to be equal at temperatures of 796-860 degrees C for the tested Ni/CaO-Al2O3 catalyst, depending on the heating rate.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Engineering, Chemical
Zongpeng Zou, Tao Zhang, Li Lv, Wenxiang Tang, Guoquan Zhang, Raju Kumar Gupta, Yan Wang, Shengwei Tang
Summary: By modulating the size of nickel particles, carbon nucleation can be eliminated, leading to increased lifespan of the catalyst. The proposed microemulsion antisolvent coprecipitation method successfully adjusted the size of the nickel particles on DFNS, resulting in reduced carbon deposition rate. This research provides guidance for designing and preparing Ni-based catalysts for DRM with reduced carbon deposition.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Physical
Ngoc Thang Tran, Thong Le Minh Pham, Trinh Duy Nguyen, Nguyen Van Cuong, Tan Ji Siang, Pham T. T. Phuong, A. A. Jalil, Quang Duc Truong, Sumaiya Zainal Abidin, Ftwi Y. Hagos, Sonil Nanda, Dai-Viet N. Vo
Summary: The study demonstrated that mesoporous gamma-alumina (gamma-Al2O3) synthesized as a support for Co catalyst showed excellent stability and high performance in methane dry reforming, indicating potential applications in the field.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Review
Energy & Fuels
Shuowen Guo, Yinghui Sun, Yanbin Zhang, Chenghu Zhang, Ying Li, Jie Bai
Summary: This article provides an overview of dry reforming of methane (DRM) reaction and its application in catalysts, with a focus on the development and limitations of NiCo bimetallic catalysts. The correlation between component properties and catalytic performances, the effect of preparation methods, and the reaction mechanisms of the catalysts are discussed. The deactivation issues caused by carbon deposition and bimetallic sintering are highlighted, and the role of promoters in overcoming these issues is emphasized.
Article
Chemistry, Physical
Kuppusamy Palanichamy, Natarajan Sasirekha
Summary: A one-pot hydrothermal technique was used to synthesize Ti-incorporated mesoporous SBA-15 with varying Si/Ti ratios, which were further modified by introducing Ni and Pt as active metal and promoter, respectively. The characterization analysis confirmed the incorporation of titanium ions and the superior performance of Pt-Ni/Ti-SBA-15 (Si/Ti = 10) in methane dry reforming.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Multidisciplinary
Xiaogang Li, Shasha Tang, Shuo Dou, Hong Jin Fan, Tej S. Choksi, Xin Wang
Summary: The study shows that confining isolated metal sites on carbon supports can increase the selectivity of aminoanthraquinone as a catalyst in catalyzing the oxygen reduction reaction to produce H2O2. By reducing the thermodynamic barrier for OOH* desorption, the selectivity for H2O2 is improved.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Yunxiang Li, Xue Feng Lu, Shibo Xi, Deyan Luan, Xin Wang, Xiong Wen (David) Lou
Summary: In this study, a reliable Ni-catalyzed and Ni-templated strategy is developed to synthesize a single-atom catalyst with excellent conductivity and large surface area, facilitating electron/mass transfer and exposure of single active sites. The catalyst exhibits remarkable activity and stability for CO2 electroreduction.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Yinghao Li, Pinit Kidkhunthod, Yingtang Zhou, Xin Wang, Jong-Min Lee
Summary: A fast phosphating strategy is presented to establish a Pt/Pt5P2 porous nanocage with numerous heterointerfaces and defects. The resulting catalyst shows extraordinary activity and stability for both hydrogen evolution reaction and methanol oxidation reaction, surpassing conventional Pt/C catalyst.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Jing-Jing Lv, Ruonan Yin, Limin Zhou, Jun Li, Reddu Kikas, Ting Xu, Zheng-Jun Wang, Huile Jin, Xin Wang, Shun Wang
Summary: This review extends the discussion of electrocatalytic CO2 reduction reaction (eCO2RR) to the microenvironment around the electrocatalytic center and provides a comprehensive overview of recent research progress. The microenvironment is categorized based on the components relevant to electrocatalytic active sites, and the factors affecting the catalytic performance of eCO2RR are discussed. Challenges, potential solutions, and perspectives for future research are also addressed.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Review
Agricultural Engineering
Lifeng Li, Xiaoyun Xu, Wujun Wang, Raymond Lau, Chi-Hwa Wang
Summary: This study provides a thorough description of the hydrodynamics and mass transfer of the concentric-tube internal loop airlift reactors, with a focus on microalgae cultivation. The study covers reactor characteristics, geometry, CFD modeling, experimental characterization, and scale up considerations. Research gaps for future development are also identified.
BIORESOURCE TECHNOLOGY
(2022)
Review
Chemistry, Multidisciplinary
Hongwei Zhang, Xindie Jin, Jong-Min Lee, Xin Wang
Summary: This review discusses the current research status of single atom catalysts (SACS) and outlines five tailoring strategies to improve their electrocatalytic activity, involving optimizing the electronic state of active sites, tuning d orbitals of transition metals, adjusting adsorption strength of intermediates, enhancing electron transfer, and elevating mass transport efficiency. Additionally, the synergistic effect from adjacent atoms and recent advances in tailoring strategies on active sites with binuclear configuration were summarized.
Article
Chemistry, Multidisciplinary
Zhuo Zhu, Yinxiang Zeng, Zhihao Pei, Deyan Luan, Xin Wang, Xiong Wen (David) Lou
Summary: A novel type of ZnCo-based metal-organic framework nanoboxes (ZnCo-MOF NBs) were designed and prepared as a functional sulfur host for Li-S batteries. The hollow architecture of ZnCo-MOF NBs ensures fast charge transfer, improved sulfur utilization, and effective confinement of lithium polysulfides (LiPSs). The atomically dispersed Co-O-4 sites in ZnCo-MOF NBs capture LiPSs and accelerate their conversion kinetics electrocatalytically.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Multidisciplinary Sciences
Yuanmiao Sun, Jiarui Wang, Shibo Xi, Jingjing Shen, Songzhu Luo, Jingjie Ge, Shengnan Sun, Yubo Chen, John V. Hanna, Shuzhou Li, Xin Wang, Zhichuan J. Xu
Summary: In this study, the relationship between surface reconstruction of spinel electrocatalysts and metal-oxygen covalency polarity was investigated. It was found that a stronger metal-oxygen covalency contributes to a more thorough surface reconstruction towards oxyhydroxides. The researchers also developed a criterion to evaluate the reconstruction degree and provide guidelines for cation selection in spinel pre-catalyst design.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Libo Sun, Xindie Jin, Tan Su, Adrian C. Fisher, Xin Wang
Summary: This study investigates the electrocatalytic activity of nickel phthalocyanine derivatives for H2O2 production, and finds that increasing the conjugation degree enhances selectivity. The catalyst exhibits high H2O2 electrosynthesis activity and selectivity in an alkaline medium.
ADVANCED MATERIALS
(2023)
Article
Multidisciplinary Sciences
Fanxu Meng, Qian Wu, Kamal Elouarzaki, Songzhu Luo, Yuanmiao Sun, Chencheng Dai, Shibo Xi, Yubo Chen, Xinlong Lin, Mingliang Fang, Xin Wang, Daniel Mandler, Zhichuan J. Xu
Summary: By using O-18 isotope-labeled catalysts, this study found that the oxygen atoms in formate produced during the methanol electrochemical refinery reaction can come from the lattice oxygen of the catalysts. The O-2p-band center levels of the catalysts can serve as an effective descriptor to predict the catalytic performance, such as formate production rates and Faradaic efficiencies. This work provides experimental evidence of lattice oxygen participation and offers an efficient design principle for the methanol electrochemical refinery reaction.
Article
Chemistry, Physical
Viet-Hung Do, P. Prabhu, Yinghao Li, Wenjie Xie, Pinit Kidkhunthod, Guangzhao Wang, Xin Wang, Jong-Min Lee
Summary: Transition metal nitrides with atomically thin Os nanoclusters confined on 2D 6-MoN exhibit enhanced catalytic performance, particularly in hydrogen evolution, due to optimized surface electron configurations and abundant active sites.
Article
Chemistry, Physical
Xiaogang Li, Wenjie Xu, Luan Q. Le, Shuangming Chen, Li Song, Tej S. Choksi, Xin Wang
Summary: This study reports the rational design of isolated NiN3S active sites, which can improve selectivity of the oxygen reduction reaction and increase the production rate of H2O2.
Review
Chemistry, Multidisciplinary
Libo Sun, Vikas Reddu, Xin Wang
Summary: Multi-atom cluster catalysts are novel heterogeneous catalysts with atomic dispersion for electrochemical energy applications, offering boosted activity through synergistic effects between adjacent atoms. The multiple active sites in the catalytic center provide versatile binding modes and catalyze complex reactions with diverse products.
CHEMICAL SOCIETY REVIEWS
(2022)
Article
Chemistry, Inorganic & Nuclear
Shengnan Sun, Chencheng Dai, Libo Sun, Zhi Wei Seh, Yuanmiao Sun, Adrian Fisher, Xin Wang, Zhichuan J. Xu
Summary: This article presents a study on the effect of the hydroxyl group position on the electro-oxidation of butanediols. The results show that the reactivity of butanediols increases with the proximity of the hydroxyl groups, resulting in a lower anodic potential. The study also provides insights into reactant selection for the electrochemical synthesis of value-added chemicals.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Multidisciplinary
Vikas Reddu, Libo Sun, Xiaogang Li, Huile Jin, Shun Wang, Xin Wang
Summary: Researchers have developed a cobalt complex catalyst based on disubstituted quaterpyridine, which is non-covalently tethered to a multiwalled carbon nanotube substrate. This hybrid catalyst, Co-qpyCOOH/CNT, demonstrates remarkable catalytic activity, near-exclusive selectivity, and high stability for the conversion of CO2 to CO under aqueous conditions. With a mere cathodic potential of -0.65 V versus RHE, it achieves a high partial current density of -6.7 mA/cm(2) and a CO selectivity of 100%.
