A one-pot hydrothermal synthesis of 3D nitrogen-doped graphene aerogels-supported NiS2 nanoparticles as efficient electrocatalysts for the oxygen-reduction reaction
A one-pot hydrothermal synthesis of 3D nitrogen-doped graphene aerogels-supported NiS2 nanoparticles as efficient electrocatalysts for the oxygen-reduction reaction
复制标题
一锅水热合成 3D 氮掺杂石墨烯气凝胶负载 NiS2 纳米颗粒作为氧还原反应的高效电催化剂
DOI：
10.1007/s11051-014-2311-8
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发表时间：
2014-02
影响因子：
2.5
通讯作者：
An-Jian Xie
中科院分区：
文献类型：
--
作者：
Ju-Chuan Li;Ping Chen;Yu-Hua Shen;An-Jian Xie
采用一锅法水热合成了氮掺杂石墨烯气凝胶负载的NiS 2纳米粒子（NiS 2/NG）。在该过程中，l-半胱氨酸不仅用作氮源以形成氮掺杂的石墨烯气凝胶，而且用作硫源以形成NiS 2。氮掺杂的石墨烯（NG）杂化物显示出NG片的互连网状结构，具有均匀沉积的NiS 2 NP，并且NiS 2 NP沉积在NG层上。在研究NG和NiS 2/NG对ORR的影响时，我们发现NiS 2/NG在碱性介质中的氧还原反应（ORR）表现出更正的起始电位、更高的电流密度和更高的电子转移数（EFT 4）。此外，NiS 2/NG显示出比商业Pt/C催化剂更好的耐久性和甲醇耐受性。
Nitrogen-doped graphene aerogels-supported NiS2 nanoparticles (NiS2/NG) were synthesized by a one-pot hydrothermal method. In the process, l-cysteine was used not only as the nitrogen source to form the nitrogen-doped graphene aerogels, but also the sulfur source to form NiS2. The nitrogen-doped graphene (NG) hybrids show an interconnected reticulation of NG sheets with uniform deposition of NiS2 NPs, and the NiS2 NPs are deposited on the NG layers. In studying the effects of the NG and NiS2/NG for the ORR, we found that NiS2/NG shows a more positive onset potential, higher current density, and higher electron transfer number (∼4) for the oxygen-reduction reaction (ORR) in alkaline media than NG. Furthermore, NiS2/NG shows better durability and methanol tolerance than the commercial Pt/C catalyst.
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影响因子：
38.3
作者：
Das, A.;Pisana, S.;Sood, A. K.
通讯作者：
Sood, A. K.
影响因子：
15
作者：
HUMMERS, WS;OFFEMAN, RE
通讯作者：
OFFEMAN, RE
影响因子：
32.5
作者：
Jaouen, Frederic;Proietti, Eric;Zelenay, Piotr
通讯作者：
Zelenay, Piotr
影响因子：
20.6
作者：
Matthew A. Thorseth;Claire E. Tornow;Edmund C. M. Tse;A. Gewirth
通讯作者：
Matthew A. Thorseth;Claire E. Tornow;Edmund C. M. Tse;A. Gewirth
影响因子：
3.1
作者：
H. Nesbitt;A. Schaufuß;M. Scaini;G. Bancroft;R. Szargan
通讯作者：
H. Nesbitt;A. Schaufuß;M. Scaini;G. Bancroft;R. Szargan