Article
Chemistry, Inorganic & Nuclear
Ming-Yue Ju, Yu Guo, Xi-Meng Chen, Xuenian Chen
Summary: The research found that the reaction of sodium amidoborane with NiBr2 can produce black precipitate 1, leading to the isolation and characterization of hydrolysis product Ni-B (2), both of which can catalyze the formation of Na[BH3(NH2BH2)(2)H]. CoCl2 was observed to have similar performance to NiBr2, providing a new method for the synthesis of Na[BH3(NH2BH2)(2)H].
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Yuzhen Ge, Xuetao Qin, Aowen Li, Yuchen Deng, Lili Lin, Mengtao Zhang, Qiaolin Yu, Siwei Li, Mi Peng, Yao Xu, Xueyao Zhao, Mingquan Xu, Wu Zhou, Siyu Yao, Ding Ma
Summary: This study reports the synthesis of highly dispersed CoNi bimetallic catalysts on alpha-MoC surface through the strong metal support interaction (SMSI) effect. The as-synthesized CoNi/alpha-MoC catalysts exhibited robust and synergistic performance for hydrogen production from hydrolysis of ammonia borane, with metal-normalized activity surpassing all previously reported noble metal-free catalysts and being four times higher than that of the commercial Pt/C catalyst.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Zachary X. Giustra, Gang Chen, Monica Vasiliu, Abhijeet Karkamkar, Tom Autrey, David A. Dixon, Shih-Yuan Liu
Summary: The research determined the reaction order and activation parameters for spontaneous hydrogen release from cyclic amine boranes, specifically 1,2-BN-cyclohexane and 3-methyl-1,2-BN-cyclopentane in tetraglyme. Computational analysis identified a mechanism involving catalytic substrate activation by a ring-opened form of 1 or 2 consistent with experimental observations.
Article
Multidisciplinary Sciences
Zhe Gao, Guofu Wang, Tingyu Lei, Zhengxing Lv, Mi Xiong, Liancheng Wang, Shuangfeng Xing, Jingyuan Ma, Zheng Jiang, Yong Qin
Summary: In this study, the promotion functions of the reverse spillover effect in the ammonia borane hydrolysis reaction were proven by constructing a NiO/Al2O3/Pt bicomponent catalyst. In situ XANES results revealed that H species generated at NiO sites spill across the support to the Pt sites reversely, leading to enhanced hydrogen generation rates. The study suggests that understanding the reverse effects can contribute to clarifying catalytic mechanisms and designing efficient catalysts for hydrogen generation reactions.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Xue Zhao, Hanyue Hu, Guo Li, Jiaqi Cai, Yi Wang, Guangyin Fan
Summary: In this paper, a low-temperature regulation (LTR) method is proposed for the synthesis of highly dispersed ultrafine Pd nanoparticles, which exhibit excellent catalytic performance in the dehydrogenation of ammonia borane. The addition of NaOH further enhances the catalytic activity, and the Pd/NPC-LTR catalyst shows good stability and reusability even after multiple cycles.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Kevin Turani-I-Belloto, Carlos A. Castilla-Martinez, Didier Cot, Eddy Petit, Sofian Benarib, Umit B. Demirci
Summary: Ammonia borane NH3BH3 can be nano sized by confinement into various materials, showing improved dehydrogenation properties. Challenges and opportunities in developing nanosized ammonia borane are discussed to gain a better understanding of its potential.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Instruments & Instrumentation
Y. Shimizu, A. Miyagi, T. Nakagawa
Summary: A relatively accurate, inexpensive, simple, and continuous quantification system for hydrogen and impurity gas(es) using a detector tube was developed in this study. Different detector tubes can be used to measure different types of gases, and the system has been optimized and evaluated for accuracy. The released concentration of ammonia gas was successfully analyzed using image analysis with a time-lapse video of the detector tube.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2023)
Article
Chemistry, Physical
Rodrigo Gil-San-Millan, Magdalena Koziel, Wojciech Bury
Summary: The development of efficient, safe, and lightweight hydrogen storage and delivery systems is crucial for the realization of the Hydrogen Economy. This study presents a methodology for the development of nanocatalysts using porphyrinic multi-variate metal-organic frameworks (MTV-MOFs), which yield dispersed nanoalloys and demonstrate synergistic effects in the catalytic dehydrogenation of hydrogen molecular carriers.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Energy & Fuels
Maoping Ye, Jie Wu, Guangyin Fan
Summary: This study demonstrates the utilization of hierarchical nitrogen-doped carbon nanosheets encapsulated Co as a support for Ru nanoparticles to enhance hydrogen production from AB hydrolysis. The catalyst shows high catalytic activity and good reusability.
Article
Chemistry, Physical
Ting Sun, Rui Lu, Yan Long, Qianggen Li, Jie Wu, Guangyin Fan
Summary: In this study, Ni@CN composite prepared by pre-absorption of nickel nitrate on bamboo fungus is used as a matrix to synthesize Rh/Ni@CN hybrid, which serves as a magnetically recoverable catalyst for hydrogen generation from AB hydrolysis. The catalyst shows outstanding catalytic activity and reusability, providing an eco-friendly and efficient strategy for fabricating high-performance catalysts in catalytic applications.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Camel Makhloufi, Nouaamane Kezibri
Summary: Hydrogen plays a crucial role in integrating renewable electricity into the energy mix efficiently, but building a sustainable Hydrogen Economy faces challenges in the value chain, particularly in large-scale production and storage. Storing renewable hydrogen in the form of green ammonia is a promising solution to unlock existing infrastructure for bulk storage and export.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Nanoscience & Nanotechnology
Yufa Feng, Xuefeng Zhang, Youxiang Shao, Xiaodong Chen, Huize Wang, Junhao Li, Ming Wu, Huafeng Dong, Quanbing Liu, Hao Li
Summary: In this study, uniform Mox-Ni0.8Cu0.2O nanowires were successfully fabricated as catalysts for ammonia borane (AB) methanolysis. The acidity of the catalysts' surface was flexibly modulated, leading to high catalytic activity. The relationship between the quantity of moderated acid sites and the activity of AB methanolysis was determined for the first time, and a plausible mechanism for the reaction was proposed.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Xiugang Li, Qilu Yao, Zongbao Li, Hongbo Li, Qi-Long Zhu, Zhang-Hui Lu
Summary: Encapsulating ultrafine Ru nanoparticles in N-doped porous carbon derived from a new porphyrin framework resulted in a catalyst with high hydrogen production performance and small Ru NPs size, demonstrating the crucial role of pyridinic-N in the catalytic activity. The study also showed that the cleavage of the O-H bond in methanol is involved in the rate-determining step of ammonia borane methanolysis, offering insights into designing stable and ultrafine metal NPs confined in pyridinic-N-rich composites for various applications.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Inorganic & Nuclear
Xi-Meng Chen, Yi Jing, Jia-Xin Kang, Na Zhang, Chen Zhang, Xin Jiang, Xuenian Chen
Summary: This article reports a new boron compound and its synthesis and application research. The formation mechanism of the compound was elucidated through experimental and theoretical studies, and the molecular structure was illustrated for the first time. In addition, another boron compound was successfully synthesized using this compound as a starting material.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Claire N. Brodie, Timothy M. Boyd, Lia Sotorrios, David E. Ryan, Eimear Magee, Steven Huband, James S. Town, Guy C. Lloyd-Jones, David M. Haddleton, Stuart A. Macgregor, Andrew S. Weller
Summary: The study demonstrates the selective synthesis of N-methylpolyaminoborane using a specific air-tolerant precatalyst, revealing the reaction mechanism and key steps involved. This provides a theoretical basis for further research in this field.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Biochemical Research Methods
Ting Tang, Chongli Yuan, Hyun-Tae Hwang, Xuebing Zhao, Doraiswami Ramkrishna, Dehua Liu, Arvind Varma
BIOTECHNOLOGY JOURNAL
(2015)
Article
Biochemical Research Methods
Ting Tang, Chongli Yuan, Hyun-Tae Hwang, Xuebing Zhao, Doraiswami Ramkrishna, Dehua Liu, Arvind Varma
BIOTECHNOLOGY JOURNAL
(2015)
Article
Engineering, Environmental
Hyun Tae Hwang, Joseph R. Martinelli, Rajamani Gounder, Arvind Varma
CHEMICAL ENGINEERING JOURNAL
(2016)
Article
Chemistry, Physical
Ranjita Ghose, Hyun Tae Hwang, Arvind Varma
APPLIED CATALYSIS A-GENERAL
(2014)
Review
Biotechnology & Applied Microbiology
Hyun Tae Hwang, Feng Qi, Chongli Yuan, Xuebing Zhao, Doraiswami Ramkrishna, Dehua Liu, Arvind Varma
BIOTECHNOLOGY AND BIOENGINEERING
(2014)
Article
Engineering, Chemical
Danni Gao, Christopher Schweitzer, Hyun Tae Hwang, Arvind Varma
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2014)
Article
Chemistry, Physical
Ahmad Al-Kukhun, Hyun Tae Hwang, Arvind Varma
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2013)
Article
Biotechnology & Applied Microbiology
Hyun Tae Hwang, Arvind Varma
CURRENT OPINION IN CHEMICAL ENGINEERING
(2014)
Article
Green & Sustainable Science & Technology
Sohail Rasool Lone, Vimal Kumar, Jeffrey R. Seay, Derek L. Englert, Hyun Tae Hwang
ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY
(2019)
Article
Green & Sustainable Science & Technology
Hoang Vu Ly, Jeong Woo Park, Seung-Soo Kim, Hyun Tae Hwang, Jinsoo Kim, Hee Chul Woo
Article
Engineering, Chemical
Geo Jong Kim, Alisha M. Boone, Michael Chesnut, Jung Hun Shin, Jihoon Jung, Hyun Tae Hwang
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2020)
Article
Chemistry, Physical
Hoang Vu Ly, Jinsoo Kim, Hyun Tae Hwang, Jae Hyung Choi, Hee Chul Woo, Seung-Soo Kim
Article
Chemistry, Physical
Geo Jong Kim, Savannah G. Hunt, Hyun Tae Hwang
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2020)
Article
Engineering, Chemical
Geo Jong Kim, Joshua T. Ausenbaugh, Hyun Tae Hwang
Summary: By using TiO2 and Ce as support and promoter in Mn/Na2WO4-based catalysts, the conversion efficiency of CH4 was enhanced, leading to a significant increase in the C-2 yield.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Engineering, Environmental
Geo Jong Kim, Hyun Tae Hwang
Summary: Hydrogen from sodium borohydride can be generated by thermolysis or hydrolysis, but both methods have drawbacks such as high temperatures required or safety concerns. A new process, thermal hydrolysis of SBH, is proposed to address these issues and achieve efficient hydrogen production.
CHEMICAL ENGINEERING JOURNAL
(2021)
