NaBH4 regeneration from NaBO2 by high-energy ball milling and its plausible mechanism

Chengguang Lang; Yi Jia; Jiangwen Liu; Hui Wang; Liuzhang Ouyang; Min Zhu; Xiangdong Yao

doi:10.1016/j.ijhydene.2017.04.014

NaBH₄ regeneration from NaBO₂ by high-energy ball milling and its plausible mechanism

Chengguang Lang
, Yi Jia
, Jiangwen Liu
, Hui Wang
, Liuzhang Ouyang
, Min Zhu
, Xiangdong Yao

School of Energy and Power Engineering

South China University of Technology
Griffith University Queensland

Research output: Contribution to journal › Article › peer-review

61 Scopus citations

Abstract

In this paper, we developed an easy and simple method (high-energy ball milling) for recycling NaBO₂ (the hydrolysis byproduct) back to NaBH₄ by a reaction with MgH₂. To optimize the yield of NaBH₄, we investigated the effect of four parameters, e.g. the ball milling time, the molar ratio of MgH₂/NaBO₂, H₂ pressure and addition of methanol, on the NaBH₄ regeneration. Accordingly, the maximum yield of NaBH₄ (89 wt. %) was achieved. The mechanism of NaBH₄ regeneration has been discussed. It is indicated that the NaBH₄ formation involves a two-step substitution in which NaBOH₂ is an intermediate confirmed by solid-state nuclear magnetic resonance (NMR).

Original language	English
Pages (from-to)	13127-13135
Number of pages	9
Journal	International Journal of Hydrogen Energy
Volume	42
Issue number	18
DOIs	https://doi.org/10.1016/j.ijhydene.2017.04.014
State	Published - 4 May 2017

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Hydrolysis
MgH
NaBH regeneration
NaBOH

Access to Document

10.1016/j.ijhydene.2017.04.014

Cite this

@article{b1e4814f27dd4b119b7cc1c87975be4a,

title = "NaBH4 regeneration from NaBO2 by high-energy ball milling and its plausible mechanism",

abstract = "In this paper, we developed an easy and simple method (high-energy ball milling) for recycling NaBO2 (the hydrolysis byproduct) back to NaBH4 by a reaction with MgH2. To optimize the yield of NaBH4, we investigated the effect of four parameters, e.g. the ball milling time, the molar ratio of MgH2/NaBO2, H2 pressure and addition of methanol, on the NaBH4 regeneration. Accordingly, the maximum yield of NaBH4 (89 wt. \%) was achieved. The mechanism of NaBH4 regeneration has been discussed. It is indicated that the NaBH4 formation involves a two-step substitution in which NaBOH2 is an intermediate confirmed by solid-state nuclear magnetic resonance (NMR).",

keywords = "Hydrolysis, MgH, NaBH regeneration, NaBOH",

author = "Chengguang Lang and Yi Jia and Jiangwen Liu and Hui Wang and Liuzhang Ouyang and Min Zhu and Xiangdong Yao",

note = "Publisher Copyright: {\textcopyright} 2017 Hydrogen Energy Publications LLC",

year = "2017",

month = may,

day = "4",

doi = "10.1016/j.ijhydene.2017.04.014",

language = "英语",

volume = "42",

pages = "13127--13135",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

publisher = "Elsevier Ltd",

number = "18",

}

TY - JOUR

T1 - NaBH4 regeneration from NaBO2 by high-energy ball milling and its plausible mechanism

AU - Lang, Chengguang

AU - Jia, Yi

AU - Liu, Jiangwen

AU - Wang, Hui

AU - Ouyang, Liuzhang

AU - Zhu, Min

AU - Yao, Xiangdong

PY - 2017/5/4

Y1 - 2017/5/4

N2 - In this paper, we developed an easy and simple method (high-energy ball milling) for recycling NaBO2 (the hydrolysis byproduct) back to NaBH4 by a reaction with MgH2. To optimize the yield of NaBH4, we investigated the effect of four parameters, e.g. the ball milling time, the molar ratio of MgH2/NaBO2, H2 pressure and addition of methanol, on the NaBH4 regeneration. Accordingly, the maximum yield of NaBH4 (89 wt. %) was achieved. The mechanism of NaBH4 regeneration has been discussed. It is indicated that the NaBH4 formation involves a two-step substitution in which NaBOH2 is an intermediate confirmed by solid-state nuclear magnetic resonance (NMR).

AB - In this paper, we developed an easy and simple method (high-energy ball milling) for recycling NaBO2 (the hydrolysis byproduct) back to NaBH4 by a reaction with MgH2. To optimize the yield of NaBH4, we investigated the effect of four parameters, e.g. the ball milling time, the molar ratio of MgH2/NaBO2, H2 pressure and addition of methanol, on the NaBH4 regeneration. Accordingly, the maximum yield of NaBH4 (89 wt. %) was achieved. The mechanism of NaBH4 regeneration has been discussed. It is indicated that the NaBH4 formation involves a two-step substitution in which NaBOH2 is an intermediate confirmed by solid-state nuclear magnetic resonance (NMR).

KW - Hydrolysis

KW - MgH

KW - NaBH regeneration

KW - NaBOH

UR - https://www.scopus.com/pages/publications/85018303449

U2 - 10.1016/j.ijhydene.2017.04.014

DO - 10.1016/j.ijhydene.2017.04.014

M3 - 文章

AN - SCOPUS:85018303449

SN - 0360-3199

VL - 42

SP - 13127

EP - 13135

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 18

ER -