Efficiency analysis of helium-cooled MAS DNP: case studies of surface-modified nanoparticles and homogeneous small-molecule solutions. Matsuki, Y., Kobayashi, T., Fukazawa, J., Perras, F. A, Pruski, M., & Fujiwara, T. Physical Chemistry Chemical Physics, 23(8):4919–4926, 2021.
Efficiency analysis of helium-cooled MAS DNP: case studies of surface-modified nanoparticles and homogeneous small-molecule solutions [link]Paper  doi  abstract   bibtex   
DNP enhancement, paramagnet-induced quenching/depolarization and build-up times are studied in a heterogeneous catalyst between 30 and 100 K. He-cooled MAS DNP at 30 K provides up to 100-fold better time performance than N 2 -cooled MAS DNP at 90 K.
@article{Fukazawa2021,
	title = {Efficiency analysis of helium-cooled {MAS} {DNP}: case studies of surface-modified nanoparticles and homogeneous small-molecule solutions},
	volume = {23},
	issn = {1463-9076},
	url = {http://xlink.rsc.org/?DOI=D0CP05658H},
	doi = {10.1039/D0CP05658H},
	abstract = {DNP enhancement, paramagnet-induced quenching/depolarization and build-up times are studied in a heterogeneous catalyst between 30 and 100 K. He-cooled MAS DNP at 30 K provides up to 100-fold better time performance than N 2 -cooled MAS DNP at 90 K.},
	number = {8},
	urldate = {2021-02-17},
	journal = {Physical Chemistry Chemical Physics},
	author = {Matsuki, Yoh and Kobayashi, Takeshi and Fukazawa, Jun and Perras, Frédéric A and Pruski, Marek and Fujiwara, Toshimichi},
	year = {2021},
	pages = {4919--4926},
}

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