Insights into the hydrogen generation from water-iron rock reactions at low temperature and the key limiting factors in the process

TY - JOUR

T1 - Insights into the hydrogen generation from water-iron rock reactions at low temperature and the key limiting factors in the process

AU - Irfan, Muhammad

AU - Zhou, Lei

AU - Bai, Yang

AU - Yuan, Shan

AU - Liang, Tian Tian

AU - Liu, Yi Fan

AU - Liu, Jin Feng

AU - Yang, Shi Zhong

AU - Gu, Ji Dong

AU - Mu, Bo Zhong

N1 - Publisher Copyright: © 2019 Hydrogen Energy Publications LLC

PY - 2019/7/5

Y1 - 2019/7/5

N2 - Hydrogen generation from water-rock reactions is mostly studied at high temperature. This study investigated the process at low temperature (5–20 °C) using both synthetic and natural iron minerals (magnetite, goethite and hematite) for a better understanding about the reaction pathway and the key factors involved. Maximum hydrogen generation detected was 6.8 μmol/g with natural goethite. Characterization of the minerals by X-ray diffraction (XRD), X-ray fluorescence (XRF), Scanning electron microscopy (SEM), Energy dispersive spectroscopy (EDS) and aqueous phase by Inductively coupled plasma atomic emission spectrometer (ICP-AES) and ferrozine spectrophotometry revealed hydrogen generation to be related to the composition and specific surface area of the minerals. Low concentration of methane (200 nmol/g from natural magnetite) was also detected from natural minerals, which indicated catalytic effects. The study is significant for hydrogen generation at low temperature and yield insights on fate of carbon dioxide in the underground reservoirs and a sustainable environment.

AB - Hydrogen generation from water-rock reactions is mostly studied at high temperature. This study investigated the process at low temperature (5–20 °C) using both synthetic and natural iron minerals (magnetite, goethite and hematite) for a better understanding about the reaction pathway and the key factors involved. Maximum hydrogen generation detected was 6.8 μmol/g with natural goethite. Characterization of the minerals by X-ray diffraction (XRD), X-ray fluorescence (XRF), Scanning electron microscopy (SEM), Energy dispersive spectroscopy (EDS) and aqueous phase by Inductively coupled plasma atomic emission spectrometer (ICP-AES) and ferrozine spectrophotometry revealed hydrogen generation to be related to the composition and specific surface area of the minerals. Low concentration of methane (200 nmol/g from natural magnetite) was also detected from natural minerals, which indicated catalytic effects. The study is significant for hydrogen generation at low temperature and yield insights on fate of carbon dioxide in the underground reservoirs and a sustainable environment.

KW - Catalysis

KW - Green environment

KW - Hydrogen generation

KW - Iron minerals

KW - Methane

UR - http://www.scopus.com/inward/record.url?scp=85066799854&partnerID=8YFLogxK

U2 - 10.1016/j.ijhydene.2019.05.086

DO - 10.1016/j.ijhydene.2019.05.086

M3 - 文章

AN - SCOPUS:85066799854

SN - 0360-3199

VL - 44

SP - 18007

EP - 18018

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 33

ER -